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SR03-01 Universal NMEA to synchro converter

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SR03-01 Universal NMEA to synchro converter User Manual Scandinavian Micro Systems AS (Edition: 2.04 November 07) 1 DOCUMENT INFORMATION ............................................................... ...............................5 2 INTRODUCTION TO SR03- 01 ........................................................................ ......................6 2.1 2.2 2.3 2.4 2.5 2.6 2.7 SINGLE UNIT OPERATION W/ONE GYRO COMPASS ................................................................... ..6 SINGLE UNIT OPERATION W/TWO GYRO COMPASSES ................................................................. 6 REDUNDANT OPERATION W/ONE GYRO COMPASS ................................................................... .7 REDUNDANT OPERATION W/ TWO GYRO COMPASSES ................................................................8 OPTIONAL REMOTE CONTROL UNIT....................................................................... .................8 AUTOMATIC SHUT-DOWN & ALARMS .................................................................... ................8 BLOCK DIAGRAM ................................................................... ............................................9 3 HOW TO READ THE “NORMAL DISPLAY” .................................................................. ....... 10 4 HOW TO USE THE KEYS ...................................................................... ............................. 11 4.1 IN NORMAL DISPLAY MODE ...................................................................... ......................... 11 4.2 IN MENU MODE ...................................................................... ........................................ 11 5 HOW TO USE THE MAIN MENU ...................................................................... ................. 12 5.1 A MENU EXAMPLE OF HOW TO CHANGE SERIAL INPUT BAUD RATE................................................ 14 6 HOW THE SYNCHRO OUTPUT WORKS ..................................................................... ........ 15 6.1 THE SYNCHRO SIGNALS ................................................................... ................................... 15 6.2 SYNCHRO OUTPUT OPERATION ................................................................. .......................... 15 6.2.1 AUTOMATICALLY SYNCHRO OUTPUT SHUTDOWN .................................................................. ...... 15 6.2.2 SYNCHRO DISCONNECTED STATE (ALARM
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Page 1: SR03-01 Universal NMEA to synchro converter

SR03-01 Universal NMEA to synchro converter

User ManualScandinavian Micro Systems AS(Edition: 2.04 November 07)

1 DOCUMENT INFORMATION ..............................................................................................5 2 INTRODUCTION TO SR03-01 ..............................................................................................6 2.1 2.2 2.3 2.4 2.5 2.6 2.7 SINGLE UNIT OPERATION W/ONE GYRO COMPASS .....................................................................6 SINGLE UNIT OPERATION W/TWO GYRO COMPASSES .................................................................6 REDUNDANT OPERATION W/ONE GYRO COMPASS ....................................................................7 REDUNDANT OPERATION W/ TWO GYRO COMPASSES ................................................................8 OPTIONAL REMOTE CONTROL UNIT........................................................................................8 AUTOMATIC SHUT-DOWN & ALARMS ....................................................................................8 BLOCK DIAGRAM ...............................................................................................................9

3 HOW TO READ THE “NORMAL DISPLAY” ......................................................................... 10 4 HOW TO USE THE KEYS ................................................................................................... 11 4.1 IN NORMAL DISPLAY MODE ............................................................................................... 11 4.2 IN MENU MODE .............................................................................................................. 11 5 HOW TO USE THE MAIN MENU ....................................................................................... 12 5.1 A MENU EXAMPLE OF HOW TO CHANGE SERIAL INPUT BAUD RATE................................................ 14 6 HOW THE SYNCHRO OUTPUT WORKS ............................................................................. 15 6.1 THE SYNCHRO SIGNALS ...................................................................................................... 15 6.2 SYNCHRO OUTPUT OPERATION ........................................................................................... 15 6.2.1 AUTOMATICALLY SYNCHRO OUTPUT SHUTDOWN ........................................................................ 15 6.2.2 SYNCHRO DISCONNECTED STATE (ALARM ACTIVE) ....................................................................... 15 6.2.3 SYNCHRO SOFT START ............................................................................................................ 15 6.3 SYNCHRO OUTPUT RECOVERY FUNCTION............................................................................... 16 6.3.1 RECOVERY AFTER SHUTDOWN AT HIGH SPEED ............................................................................. 16 6.4 SYNCHRO OUTPUT OVERLOAD ............................................................................................ 16 6.5 STUCK REPEATER INDICATOR .............................................................................................. 16 6.5.1 STUCK REPEATER CALCULATION ................................................................................................ 16 6.5.2 STUCK REPEATER INDICATION ................................................................................................... 16 6.6 OPTIONAL MECHANICAL REPEATER LAMP OUTPUT................................................................... 16 7 HOW TO CONFIGURE THE SYNCHRO OUTPUT FORMAT ................................................... 17 7.1 CAUTION! DISCONNECT SYNCHRO LOAD! .............................................................................. 17 7.2 CAUTION! SELECT CORRECT PHASE (S1/S2/S3) VOLTAGE! ........................................................ 17

7.3 7.4 7.5 7.6 7.7

FIND THE CORRECT PHASE VOLTAGE FOR THE MECHANICAL REPEATER ........................................... 17 ENTERING THE SYNCHRO FORMAT MENU .............................................................................. 18 HOW TO CHANGE SYNCHRO OUTPUT FORMAT (EXAMPLE). ........................................................ 18 HOW TO CUSTOMIZE THE SYNCHRO OUTPUT FORMAT .............................................................. 19 CONNECT SYNCHRO LOAD .................................................................................................. 20

8 QUICK SET –UP GUIDE .................................................................................................... 21 9 COMPASS COMPARE & MANUAL SWITCHOVER............................................................... 23 9.1.1 AUTOMATIC SWITCHOVER AFTER RESET ..................................................................................... 23 9.1.2 MANUAL SWITCHOVER WHEN COMPASS COMPARE ALARM ........................................................... 24 10 HOW THE ALARM SYSTEM

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WORKS ................................................................................ 25 10.1 ALARM LEVELS .............................................................................................................. 25 10.1.1 WARNING........................................................................................................................... 25 10.1.2 ALARM ............................................................................................................................... 25 10.1.3 CRITICAL ALARM .................................................................................................................. 25 10.1.4 ALARM LEVELS SUMMARY ..................................................................................................... 25 10.2 ALARM SOURCES ........................................................................................................... 25 10.3 ALARMS IN LINE 3 IN NORMAL DISPLAY ............................................................................... 26 10.4 NMEA ALR & ACK SERIAL OUTPUT ALARM SYSTEM .............................................................. 26 10.4.1 NMEA ALR SENTENCES “SET ALARM STATE” .......................................................................... 26 10.4.2 NMEA ACK SENTENCES “ACKNOWLEDGE ALARM” ................................................................... 26 10.5 ALARM ACKNOWLEDGE ................................................................................................... 27 10.5.1 UNACKNOWLEDGED ALARMS ................................................................................................. 27 10.5.2 BUTTON ACKNOWLEDGE ....................................................................................................... 27 10.5.3 NMEA ACK ACKNOWLEDGE.................................................................................................. 27 11 HOW TO INSTALL SR03-01............................................................................................. 28 11.1 MECHANICAL MOUNTING ................................................................................................ 28 11.2 CABLING & CONNECTIONS ............................................................................................... 29 11.3 CABLE GLANDS .............................................................................................................. 30 11.3.1 CABLE GLANDS FORMAT........................................................................................................ 30 11.3.2 INSTALLATION INSTRUCTION FOR EMC CABLE GLANDS ............................................................... 30 11.3.3 RECOMMENDED WIRE SIZE .................................................................................................... 30 11.4 CONNECTION BLOCKS ...................................................................................................... 31 11.4.1 MAINS POWER & GROUND CONNECTIONS .............................................................................. 31 11.4.2 SYNCHRO SIGNAL OUTPUT CONNECTIONS ................................................................................ 32 11.4.3 SYNCHRO SIGNAL OUTPUT CONNECTIONS INCLUDING THE REPEATER LIGHT CONNECTED ................. 32 11.4.4 SYNCHRO SIGNAL CABLING FAULTS AND THE RELATED HEADING ERROR .......................................... 33 11.4.5 SMALL SIGNAL TERMINAL BLOCKS .......................................................................................... 35 11.4.6 EXT. REF CONNECTION – PREPARED FOR FUTURE USE ....................................................... 35

11.4.7 11.4.8 11.4.9 11.4.10 11.4.11 11.4.12

ALARM RELAY CONNECTION ................................................................................................ 35 CHANGE OVER SIGNAL RELAY .............................................................................................. 35 CAN BUS INTERFACE ............................................................................................................ 35 HEADING INPUT 1 & 2 (RS422 SERIAL DATA)...................................................................... 36 REMOTE CONTROL PANEL CONNECTION ........................................................................... 36 NMEA OUPUT SERIAL DATA CONNECTION .......................................................................... 36

12 TECHNICAL SPECIFICATIONS .......................................................................................... 37 12.1 TYPE APPROVALS ........................................................................................................... 37 12.2 ELECTRICAL SPECIFICATION ............................................................................................... 37 12.2.1 24 VOLT POWER INPUT ........................................................................................................ 37 12.2.2 SYNCHRO OUTPUT SIGNAL .................................................................................................... 37 12.2.3 ALARM RELAY OUTPUT ......................................................................................................... 38 12.2.4 PRIMARY/SECONDARY CHANGEOVER CONTROL RELAY ............................................................... 38 12.2.5 SERIAL DATA INPUT (HEADING 1 AND 2) ................................................................................. 39 12.2.6 SERIAL DATA OUTPUT........................................................................................................... 39 12.3 ENVIRONMENTAL SPECIFICATION ....................................................................................... 39 12.4 MECHANICAL SPECIFICATION ............................................................................................ 39 12.4.1 PHYSICAL SPECIFICATION OF THE BOX ...................................................................................... 39 12.5 CONFIGURABLE LIMITS .................................................................................................... 39 12.6 SERIAL DATA INPUT FROM GYRO COMPASS..........................................................................

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40 12.6.1 PROTOCOLS ........................................................................................................................ 40 12.6.2 NMEA PPLAN-INTERPRETER ................................................................................................ 40 12.6.3 BAUD RATE ......................................................................................................................... 41 12.7 SYNCHRO OUTPUT SIGNALS .............................................................................................. 41 12.7.1 STATIC RESOLUTION & ACCURACY .......................................................................................... 41 12.7.2 RATE OF TURN (ROT) ........................................................................................................... 41 12.7.3 DATA FILTER & SIGNAL PROCESSING ....................................................................................... 41 12.7.4 ”LAG ERROR” / “SCHLEPPFEHLER”.......................................................................................... 41 13 MAINTENANCE ............................................................................................................. 42 13.1 DUST FILTER ................................................................................................................. 42 13.1.1 SPECIFICATION..................................................................................................................... 42 13.1.2 DUST FILTER CLEANING OR EXCHANGE ..................................................................................... 42 14 TROUBLESHOOTING ..................................................................................................... 44 15 CERTIFICATE AND GUARANTEE ..................................................................................... 45 16 SALES AND TECHNICAL SUPPORT .................................................................................. 47

1 Document informationThe document is valid for SR03-01 Controller and Display Unit Software version 2.04. Table 1 Document Revisions overview.Rev 4 5 6 7 Date 17.02.06 30.03.06 19.04.06 02.06.06 SW 1.04 1.05 1.06 1.07 Comment Return from Setup or Configuration directly back to Normal Operation Mode. Compass Compare added. New Normal Operation Mode display. Optional lamp transformer description. Dust filters maintenance. Added VEGA-M and general synchro types. New Normal Operation Mode display. Manual Switchover description. Temperature Warning changed from 55 to 65 degree Celsius. New synchro output formats. Synchro phase [0-12.7] changed to [0-10.8] New Quick Set up Guide. New custom synchro configuration menu. New exchangeable fan module. The reference voltage is reduced from maximum 115 V AC to 110 V AC. Improved / simplified menu handling and description. Decoding NMEA $--VBW speed sentence. Decoding NMEA $--VBW long water or ground speed sentence. Compass Compare Limit Max 20 degrees – default 5 degrees. Added Talker ID follows active heading in ID. Compass Compare limit Min(1.0) Max(20.0) Default(5.0) degree. Current limit Min(5.0) Max(20.0) Default(16.0) amperes. Stuck repeater limit Min(1.0) Max(10.0) Default(1.5) amperes.

8 9 1.10 1.10b 2.00 2.01 2.02 2.03 2.04

07.06.06 27.06.06 17.08.06 13.11.06 05.01.07 21.02.07 14.03.07 03.05.07 19.09.07

1.08 1.09 1.10 1.10 2.00 2.01 2.02 2.03 2.04

2. Introduction to SR03-01

Scandinavian Micro Systems provides a series of NMEA to Synchro Converters for driving various "old style" Mechanical Synchro Repeaters using Digital Heading Data. All of the units can read various digital serial formats as supplied by modern gyrocompasses primarily NMEA 0183, but also other proprietary formats. SR03-01 Universal NMEA to Synchro Converter models can be configured to drive different type of Mechanical Repeaters depending on voltages and frequencies required.

2.1 Single Unit operation w/one Gyro Compass

The ScanRepeater™ SR03-01, Universal NMEA to Synchro Converter is shown in a system using the existing Gyro Repeater Synchro Distribution Unit - driving the existing mechanical repeaters.SR03-01OPTIONAL

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REMOTE CONTROL UNIT POWER IN 24V DC Rmt Ctrl Port NMEA ALR/HDT Port CAN-1 CAN-2 Signal Processor Alarm REDUNDANCY Switch-Over Ctrl HEADING #2 HEADING #1 Ref & 3-Phase Booster Alarm NO Alarm NC Display&Keyboard Synchro ON/OFF Power Supply

Gyro Repeater Distrubution UNIT

MAX 12 Mechnical Synchro RepeatersW N WN

E N

W S

S ES

Gyro Primary (Master)NMEA 183 (RS422) .. or other Procols

NO NC Synchro Output

Figure 1 SR03-01 with one gyro.

2.2 Single Unit operation w/two Gyro Compasses

The Universal NMEA to Synchro Converter units will allow you to exchange your old Gyro Compass, but keep the old Mechanical Repeaters and the old cabling, thus saving time and money when converting to a new and modern Gyro Compass - see drawings below.

SR03-01OPTIONALREMOTE CONTROL UNIT POWER IN 24V DC Rmt Ctrl Port NMEA ALR/HDT Port CAN-1 Signal Processor Alarm REDUNDANCY Switch-Over Ctrl HEADING #2 HEADING #1 Ref & 3-Phase Booster Alarm NO Alarm NC Display&Keyboard Synchro ON/OFF Power Supply

Gyro Repeater Distrubution UNIT MAX 12 Mechnical Synchro RepeatersW N WN

Central Alarm Monitoring

E N

W S

S ESNN EE

Gyro Primary (Master)

Page 5: SR03-01 Universal NMEA to synchro converter

Gyro Secondary (Slave)NMEA 183 (RS422) .. or other Procols

CAN-2

NO NC Synchro Output

Figure 2 One SR03-01 with two gyros.

2.3 Redundant Operation w/one Gyro Compass

Redundancy can be achieved by connecting two (2) Universal NMEA to Synchro Converters in parallel. The figure below shows a Block Diagram using one gyrocompass and two Universal NMEA to Synchro converters.

SR03-01 (SECONDARY UNIT)Display&Keyboard Synchro ON/OFF POWER IN 24V DC Rmt Ctrl Port NMEA ALR/HDT Port CAN-1 CAN-2 REDUNDANCY Switch-Over Ctrl HEADING #2 HEADING #1 Ref & 3-Phase Booster Signal Processor Alarm Alarm NO Alarm NC Power Supply POWER IN 24V DC

SR03-01 (PRIMARY UNIT)Display&Keyboard Synchro ON/OFF Power Supply

OPTIONALREMOTE CONTROL UNIT

OPTIONALREMOTE CONTROL UNIT

Rmt Ctrl Port NMEA ALR/HDT Port CAN-1 CAN-2 REDUNDANCY Switch-Over Ctrl HEADING #2 HEADING #1 Ref & 3-Phase Booster Signal Processor Alarm Alarm NO Alarm NC

NO NC Synchro Output

NO NC External changeover relay

Opt.Synchro IN Synchro Output

NMEA 183 (RS422) .. or other Procols

Figure 3 Two redundant SR03-01 with one common gyro.

The gyrocompass feeds the same heading to both of the two Universal NMEA to Synchro Converters. Only the primary SR03-01 must be aligned to the mechanical synchro repeater(s). The primary and secondary SR03-01 will then run in "parallel" and be synchronized producing the same output signals. When the primary SR03-01 falls out - an external changeover relay will switch out primary SR0301 synchro signals and in the secondary SR03-01 synchro signals. The primary SR03-01 controls the external changeover relay with a switchover relay control signal.

Gyro Primary (Master)

Distribution Unit

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MAX 12 Mechnical Synchro RepeatersN W SW

Repeater

S E

2.4 Redundant Operation w/ two Gyro Compasses

A higher degree of Redundancy can be achieved by having two gyrocompasses each driving its "own" Universal NMEA to Synchro Converter as shown in the figure below.SR03-01 (SECONDARY UNIT)Display&Keyboard Synchro ON/OFF POWER IN 24V DC Rmt Ctrl Port NMEA ALR/HDT Port CAN-1 CAN-2 REDUNDANCY Switch-Over Ctrl HEADING #2 HEADING #1 Ref & 3-Phase Booster Signal Processor Alarm Alarm NO Alarm NC Power Supply POWER IN 24V DC Rmt Ctrl Port NMEA ALR/HDT Port CAN-1 CAN-2 REDUNDANCY Switch-Over Ctrl HEADING #2 HEADING #1 Ref & 3-Phase Booster Signal Processor Alarm Alarm NO Alarm NC

SR03-01 (PRIMARY UNIT)Display&Keyboard Synchro ON/OFF Power Supply

OPTIONALREMOTE CONTROL UNIT

OPTIONALREMOTE CONTROL UNIT

NO NC Synchro Output

NO NC External changeover relay

Opt.Synchro IN Synchro Output

MAX 12 Mechnical Synchro Repeaters

Repeater

N W

Gyro Secondary (Slave)NMEA 183 (RS422) .. or other Procols

Gyro Primary (Master)

Distribution Unit

NE NE

W S

Page 7: SR03-01 Universal NMEA to synchro converter

S E

Figure 4 Two redundant SR03-01 with two common gyros. Both gyrocompasses feeds heading to the two Universal NMEA to Synchro Converters. Only the primary SR03-01 must be aligned in respect to the mechanical repeater. Should one gyro compass and one SR03-01 fail the systems will still operate.

2.5 Optional Remote Control Unit

It is possible to connect SR03-03 - external display control unit to the SR03-01 also called the Remote Control Unit. The Configuration Menu is the only difference between the built in Local Control Panel the Remote Control Unit. The Remote Control Unit can not be used to configure the Synchro Format.

BridgeFigure 5 Remote Control Unit/SR03-01

NOTE: For heading monitor / Compass compare functionality SR03-03 is required to indicate alarm status to the staff on the bridge.

NOTE: SR03-03 and SR03-01 requires the same software version.

2.6 Automatic Shut-Down & Alarms

The ScanRepeater™ Universal NMEA to Synchro Converters have built in automatic “shutdown”, in case of short-circuit, over-current, critical temperature.

All of these alarms are OR-ed into one alarm function so that any one of these conditions will start flashing the Alarm light on the Front panel, drop the Alarm Output Relay and start the Sound Alarm. The Alarm Output Relay will also activate in case of Power Loss to the unit. To silence the Alarm; Press the ALARM Button (Red). Details about the alarm can be read from the display.

2.7 Block diagram

The block diagram illustrates all inputs and outputs as well as some of the software functions inside SR03-01.

Remote Control Unit LCD / Menu Driver Button Driver Serial Driver

Local Control Panel LCD / Menu Driver Button Driver Serial Driver

Synchro Booster Output

Synchro Load Reference R1/R1 Phase S1/S2/S3

LCP Serial driver RCU Serial driver

S O F T W A R E A P P L I C A T I O N CPU RAM FLASHFAN Control

Synchro Calculation Recovery Heading Optional External Synchro Changeover Relay

Synchro Active Relay

Primary Gyro Compass Heading 1

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Heading 1 In Serial driver Optical IEC 61162-1/2 Heading 2 In Serial driver Optical IEC 61162-1/2

Secondary Gyro Compass Heading 2 Central Alarm Monitoring (NMEA ALR) And/Or Heading receiver (NMEA HDT) Receiver

Alarm Relay NO or NC

AAlarm indicator

NMEA output Serial driver IEC 61162-1/2 24 VCD Current Sensing

Temperature Sensing

24 V DC Mains Supply 10 - 20 Ampere

Mains inlet Isolated 24V DC 20 Amp Fuse

Figure 6 Block diagram of SR03-01

3 How to read the “Normal Display”1 2 6H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(50/0-20) 360X +43’C [Menu] 2.5 Amp

71 Primary Serial Input Heading 1“H1:359.3(HDT)” “H1:ALARM(ANS)” “H1: LOST(RGC)” “H1: IDLE(---)”

NMEA HDT sentence heading received and valid. [0.0 – 359.9]. Anschutz C-Bus serial heading received with alarm. RGC11 serial heading in missing or fails. Serial input channel not configured.

Secondary Serial Input Heading 2Status equal Primary Serial Input Heading 1. Used as backup for the primary heading input.

Indicates heading source for Synchro output“!” “->” Missing heading source. Heading sourced from H1 when line 1 or H2 when line 2.

Synchro Output Heading status“Out:359.3” Synchro output heading is currently 359.3 degree. “Out:OFF!!” Synchro output signals are faded out. Critical alarm condition.

Compass Compare status“H1-H2: -1.0” “H1-H2:ALARM” Heading H2 is 1 degree larger than heading 1. Deviation exceeded the configurable limit => Alarm.

Synchro format / Alarm status“50Hz(50/0-20) 360X” “Alarm : No heading in!” Synchro output format. Ex. Alarm message. See chapter 10.

Temperature inside SR03-01“+43’C” “High” “Alarm” 43 degree Celsius inside the SR03-01 cabinet. Temperature exceeding 65 will generate a warning. Temperature exceeding 70 is critical and will turn off synchro output.

Page 9: SR03-01 Universal NMEA to synchro converter

Mains inlet current consumption“2.5 Amp” The current consumption at mains inlet (typically 24 V DC). “Alarm” Consumption exceeded the configurable limit is critical. Synchro output will be turned off.

4 How to use the keysThe Display & Control Panel has five positive action switches, with a distinct snap when they are pressed and engaged. Synchro Power Key Press 5 sec to turn Synchro output off. When setting the synchro output in “Powered Off” state it will be displayed as an alarm event. Press 1 sec to turn Synchro output On again. Acknowledge alarm key Press once to acknowledge all alarms. The red light will then be turned steady on until the Alarm condition is rectified and then turned off.

POWER

ALARM RESET

4.1 EDIT ENTER

In Normal Display ModeDisplay in Normal Display Mode H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(50/0-20) 360X +43’C [Menu] 2.5 AmpEDIT ENTER

Menu Enter key Used to enter the Menu. Backlight Up key Used to increase the backlight. Backlight Down key Used to decrease the backlight.

4.2 In Menu ModeDisplay in Menu Mode Heading 1 Protocol Anschutz Serialdata not detected [Menu] [Change] [Menu]EDIT ENTER

Each of the following keys performs the function indicated by the text shown “[…..]” in the display line 4.EDIT ENTER

Edit - Enter key [Change] Activate the edit mode to change a menu item. [Accept] Accept changes. [Exit] Exit menu. Up key [Menu] [Value] Down key [Menu] [Value]

Next item in menu list Increase or change value.

Next item in menu list Increase or change value.

Display in Menu Edit Mode Heading 1 Protocol >Anschutz Serialdata not detected [Value][Accept][Value]EDIT ENTER

5 How to use the Main MenuThe table below shows how to enter the main menu and how to walk through all the possible menu items. The menu has a 60 seconds timeout. The display will then leave the menu. Menu items list H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(50/0-20) 360X +43’C [Menu] 2.5 AmpEDIT ENTER

Comments SR03-01 will after reset and when running normally show the “Normal Display” information.

Manual Switchover Set new: Heading 2 (H2) Active : Heading 1 (H1) [Menu] [Change]EDIT ENTER

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Press to enter the main Menu. Manual switchover is the first menu item. When using both heading 1 and 2 serial data input, it is possible to manually select one of them as source for the synchro output. Press or select a new heading source. If not a 1X system the compass rose repeater heading can differ from the SR03-01 synchro output heading. Use this menu to align the mechanical repeater(s). Change the “Repeater heading” to equal the compass rose heading. Press for next or to align SR03-01. Select correct protocol for primary serial input channel 1. See chapter 12.6.1 for all available protocols. Line 3 indicates if SR03-01 can read the serial data in. The protocol and baud rate need to be correct. Press for next or to change the protocol. Select correct baud rate for primary serial input channel 1. Select between 4800/9600/19200/38400. Line 3 indicates if SR03-01 can read the serial data in. The protocol and baud rate need to be correct. Press for next or to change baud rate. Select correct protocol for secondary/backup serial input channel 2. See chapter 12.6.1 for all available protocols. Line 3 indicates if SR03-01 can read the serial data in. The protocol and baud rate need to be correct. Press for next or to change the protocol. Select correct baud rate for backup serial input channel 2. Select between 4800/9600/19200/38400. Line 3 indicates if SR03-01 can read the serial data in. The protocol and baud rate need to be correct. Press for next or to change baud rate. Select NMEA sentence type(s) for the serial output channel. Select btw NMEA sentence $nnHDT, $nnALR or both.Output talker ID will follow the active NMEA in talker ID – else “II” for integrated Instrumentation.EDIT ENTER EDIT ENTER EDIT ENTER EDIT ENTER EDIT ENTER EDIT ENTER

EDIT ENTER

Align repeater Repeater heading :320.3 Set equal Compass Rose [Menu] [Change] [Menu]EDIT ENTER

Heading 1 Protocol Anschutz Serialdata detected [Menu] [Change] [Menu]EDIT ENTER

Heading 1 Baud Rate 4800 Serialdata detected [Menu] [Change] [Menu]EDIT ENTER

Heading 2 Protocol Anschutz Serialdata not detected [Menu] [Change] [Menu]EDIT ENTER

Heading 2 Baud Rate 4800 Serialdata not detected [Menu] [Change] [Menu]EDIT ENTER

NMEA Output Sentences ALR & HDT NMEA out (Serial Output Channel) [Menu] [Change] [Menu]

EDIT ENTER EDIT ENTER

NMEA Output Baud Rate 4800 (Serial Output Channel) [Menu] [Change] [Menu]EDIT ENTER

Press for next or to select sentences. Select baud rate for NMEA serial output channel. Select between 4800 (10 msg/sec), 9600 (10msg/sec), 19200 (10msg/sec), 38400 (20msg/sec).EDIT ENTER

Compass Compare Limit 2.5 Degree Alarm limit (H1-H2) [Menu] [Change] [Menu]EDIT ENTER

Press for next or to change baud rate. Set the alarm limit for compass compare function in range from 0 to 20 degrees. Default value is 5.0 degree. See chapter 0.EDIT ENTER

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Current limiter 16.0 Amp For Mains Inlet (24VDC) [Menu] [Change] [Menu]EDIT ENTER

Press for next or to change compare limit. Set the maximum limit for the mains inlet current consumption from 5 to 20 amperes. Default value is 16 ampere.EDIT ENTER

StuckRepeaterSensitivity 1.5 Amp (Max. variable load) [Menu] [Change] [Menu]EDIT ENTER

Press for next or to change current limit. Set the limit for detecting a stuck repeater. See chapter 6.5.

LCD Contrast adjustment Level : 50 % [Menu] [Change] [Menu]EDIT ENTER

Press for next or to change sensitivity. If needed - it is possible to correct the displays contrast. Values from 0 to 100 %.

EDIT ENTER

Synchro Output Info Anschutz 2 60Hz(60/0-24)V 360X [Menu] [Menu]

Press for next or to change LCD contrast. The ”Synchro Output Info” displays: 1. Synchro standard type(Anschutz 2) 2. Reference frequency (60Hz) 3. Synchro Ref Voltage (60) 4. Synchro Phase voltage range (0-24) 5. Gear Ratio (360X) Press to see the next menu item. These none-editable menu elements show the software version and build date for the microcontroller in the SR03-01 “Controller Panel”. Non editable menu.

EDIT ENTER

EDIT ENTER

Sofware – Display Unit Version 2.04 Nov 1 2007 [Menu] [Menu]EDIT ENTER

Software Controller Version 2.04 Nov 1 2007 [Menu] [Menu]EDIT ENTER

Press to see the next menu item. This none-editable menu element shows the software version and build date for the microcontroller in the SR03-01 “Controller board”. Non editable menu.

Press

to see the next menu item.

Exit Menu Return to Normal Display [Exit] [Menu]EDIT ENTER

The last menu entry of the Main menu is the exit function. Press the Edit/Enter button and SR0301 will return to the Normal Display mode. PressEDIT ENTER EDIT ENTER

to leave the menu.

5.1 A menu example of how to change Serial Input baud rate

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We will below go through - as an example - how to change the baud rate setting for the serial heading input1. Display menu items H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(50/0-20) 360X +43’C [Menu] 1.6 AmpEDIT ENTER

Comments SR03-01 will after reset and when running normally show the “Normal Display” information. The text [Menu] indicates thatEDIT ENTER EDIT ENTER

will activate main Menu.

Manual Switchover Set new: Heading 2 (H2) Active : Heading 1 (H1) [Menu] [Change]EDIT ENTER

Press to enter the main Menu. Manual switchover is the first menu item.

Press to find the ”Heading 1 Baud Rate”.

Heading 1 Baud Rate 4800 Serialdata not detected [Menu] [Change] [Menu]EDIT ENTER

Heading 1 Baud Rate >4800 Serialdata not detected [Value][Accept][Value]EDIT ENTER

Press to be able to change. The user has now entered edit mode “>”. Select correct baud rate for primary serial input channel 1. Select between 4800/9600/19200/38400.

EDIT ENTER

Heading 1 Baud Rate >9600 Serialdata not detected [Value][Accept][Value]EDIT ENTER

Press or to select correct baud rate. When selected the correct baud rate – accept the changes and leave the edit mode “>”. If any change the user will enter the “Save or Cancel” window.EDIT ENTER

Save or Cancel Changes is made Save the new setting ? [Save] [Cancel]EDIT ENTER

Press to accept the new baud rate. Changes will be stored in non-volatile flash memory. The set-up will not be lost if the unit is turned off.

H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(50/0-20) 360X +43’C [Menu] 1.6 Amp

Press to Save or to Cancel changes. The user will then return to the operation display modus “Normal Display”.

6 How the Synchro Output worksYou will find the technical specification for the Synchro output in chapter 12 Technical Specifications.

6.1 The synchro signals

To control a synchro motor you need three phase signals S1,S2 and S3 and two reference signals R1 and R2. Definitions of the synchro signals are: R1 to R2 = KE sin ωt S1 to S3 = E sin ωt sin (θ) 0 S3 to S2 = E sin ωt sin (θ + 120 ) 0 S2 to S1 = E sin ωt sin (θ + 240 )

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All synchro motors is or can be used as an AC motor. SR03-01 is designed as an AC synchro converter. The five signals (S1,S2,S3,R1,R2) have a reference modulated frequency, normally 50Hz,60Hz,400Hz or 500Hz. The reference frequency for all the signals need to be in phase if not it is not possible to control the synchro motor. NB! Do not use any other reference signal (R1,R2) than SR03-01 outputs.

6.2 Synchro Output Operation

6.2.1 Automatically Synchro Output Shutdown The synchro signal will be faded out and disconnected if minimum one of the three critical alarm circumstances in the table below occurs. Critical Alarm source Overloaded Critical Temperature Synchro Power Off Comments SR03-01 sinks more current than configured maximum. (Current Limit), Internal temperature exceeds the maximum limit (70 ºC). It is possible to “Power off” the synchro signal with the [POWER] button pressed for 5 seconds on Local Control Panel.

6.2.2 Synchro Disconnected State (Alarm active) When a critical alarm is active the synchro output will be disconnected in the following way: 1. The synchro output signal will be faded out. 2. The Change Over relay signal will close the NC contact and open the NO contact. 3. The Alarm Relay will close the NC contact and open the NO contact. 4. The Alarm Light will start flashing red. 5. The Alarm Sounder will start Pulsating. 6.2.3 Synchro Soft Start If the critical alarm conditions are removed the synchro output will follow a soft start algorithm: 1. The Alarm Sounder will stop Pulsating. 2. The Alarm Light will stop flashing red. 3. The Alarm Relay will close the NC contact and open the NO contact.

The Change Over relay signal will open the NC contact and close the NO contact. 5. The synchro output signal will fade in. (2200 msec.)

6.3 Synchro Output Recovery Function

If SR03-01 looses the 24 VDC inlet power supply when the mechanical repeaters are running the output heading will be stored in a Non Volatile memory before shutting down the system. When SR03-01 restarts - the stored heading (recovered heading RH) will be used to synchronize the mechanical repeater with the serial data input heading. 6.3.1 Recovery after shutdown at high speed If SR03-01 shuts down when the mechanical repeaters has an high speed, the mechanical repeaters positions when it stands still will be unknown for SR03-01. This will lead to one or more degrees misalignments. The effect of these will dependent on the mechanical repeater type and specification. If this should happen – just align the SR03-01 once more.

6.4 Synchro Output Overload

SR03-01 measures the 24 voltage power supply input current. The following overload ALARM algorithm is design in SR03-01: If the average current in 320 msec. exceeds the Current Limit it will be generated an Overload alarm. The Current Limit is changeable in the set-up menu. When the synchro output is overloaded, the synchro output will be turned off in 10 seconds. The current will then fall down to under the Current Limit and SR03-01 will then soft-start the synchro output again. PRECAUTION: If this repeats successive 10 times - SR03-01 will NOT continue to setup the synchro output again. The user must then power cycle/reset SR03-01. The system needs maintenance. If the synchro output runs for more than 60 seconds without any Overload alarm the 10 times counter will be reset to 0.

6.5 Stuck Repeater indicator

SR03-01 has a built in load test that will detect if a Mechanical Repeater is stuck and give a Warning (non-critical alarm). SR03-01 senses the abnormal/unequal load when a repeater gets stuck. If the stuck repeater is removed the stuck repeater indicator will be removed. 6.5.1 Stuck repeater calculation To calculate a stuck repeater the Rate of Turn need to be between 0 and 60 degrees per minute and the synchro signal requires rotating one turn. It is not possible to do this calculation if the

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heading stands still. 6.5.2 Stuck repeater indication Stuck repeater warning will not trigger the alarm output relay and the buzzer. The ALARM led on the control panels and a blinking line in the display will indicate the fault.

6.6 Optional mechanical Repeater Lamp Output

SR03-01 has a transformer for generating power to the Mechanical Repeater Light for some specific synchro formats. The Light will sink effect from the output reference signal so the Light load will be additional to the normal synchro reference mechanical repeater load. Se the 11.4.3 Synchro Signal Output Connections including the Repeater Light connected for how to connect the transformer and

7 How to Configure the Synchro Output Format7.1 Caution! Disconnect Synchro Load!Before configuring the Synchro output type disconnect the SR03-01‟s synchro phase S1/S2/S3 and reference R1/R2 wires from the mechanical repeaters! It is possible to damage synchro repeater motors when generating to high synchro signal voltage for low voltage repeaters!

7.2 Caution! Select Correct Phase (S1/S2/S3) voltage!

SR03-01 booster requires phase voltage equal as given for the Mechanical Repeater. The Mechanical Repeater can be seen up on as a transformer so the Reference voltage R1/R2 will be transformed to a secondary voltage at the Phase signals MRS1/MRS2/MRS3. If the Phase voltage returned from the Mechanical Repeater is higher than the Phase voltage generated in the SR03-01 S1/S2/S3, the Phase voltage amplifier in SR03-01 need to sink the returned power witch again generates more heat inside the converter. Mechanical Repeater SR03-01R1 R2 S1 S2 S3 MRS1 MRS2 MRS3

MRS1 =< S1 MRS2 =< S2 MRS3 =< S3

So be sure that SR03-01 generates equal phase voltage (S1/S2/S3) compared with given or measured Mechanical Repeater values (MRS1/MRS2MRS3)!

7.3 Find the correct Phase voltage for the Mechanical repeater

For some mechanical repeaters you will only find reference voltage and frequency given for the synchro motor. SR03-01 requires both the Reference and Phase voltages given with the correct transformer ratio for the mechanical repeater. Follow the procedure to find the correct Phase voltage: Mechanical Repeater SR03-01R1 R2 S1 S2 S2 MRS1 MRS2 MRS3

Multi Meter (V-AC)

Disconnected

1. Disconnect all repeater(s) from SR03-01. 2. Use the synchro customize menu to setup SR03-01 with the correct Mechanical Repeater reference Voltage and Frequency - R1/R2. Do not care about the Phase voltage. See 7.6 How to customize the Synchro Output. 3. Connect ONLY the Reference signals R1/R2 from SR03-01 to only ONE mechanical repeater – let the mechanical repeater phase signals S1/S2/S3 be disconnected.

Turn the compass manually around. Then measure and find the maximum RMS AC Voltage between MRS1/MRS3. This maximum RMS voltage is then the “correct phase voltage”. Then you can calculate the transformer ratio: TransRatio = VR1/R2 / Vmax(MRS1/MRS3).

7.4 Entering the Synchro Format Menu

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To enter the ”Select Synchro Format” menu, it is necessary to follow this procedure:EDIT ENTER

1. Press all the three buttons + + exact simultaneously in minimum 5 seconds. 2. The user will then enter the ”Select Synchro Format” menu. Release then all buttons. This is done in this intricate manner to prevent unauthorized personnel to get access to the configuration menu.

7.5 How to change Synchro Output Format (example).

Caution ! Disconnect Synchro Load before changing the synchro format! Display menu items H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(50/0-20) 360X +43’C [Menu] 1.6 AmpEDIT ENTER

Comments SR03-01 will after reset and when running normally show the “Normal Display” information. To enter the “Select Synchro Format” menu - press all the three buttons simultaneously. Press in 5 sec. and then release all. SR03-01 do now deliver Anschutz 2 format with 60Hz, 60 V AC reference and 0-24 V AC phase signals with a gear ratio of 360. Let‟s say we want the Gazelle 1 synchro format. Do as follow. Press to be able to change. The blinking arrow “>”indicates edit mode.EDIT ENTER EDIT ENTER

Select Synchro Format Anschutz 2 60Hz(60/0-24) 360X [Menu] [Change]EDIT ENTER

Select Synchro Format >Anschutz 2 60Hz(60/0-24) 360X [Value][Accept][Value]EDIT ENTER

Press

or

to select ”Gazelle 1” format.

Select Synchro Format >Gazelle 1 50Hz(96/0-96) 360X [Value][Accept][Value]EDIT ENTER

Save or Cancel Changes is made Save the new setting ? [Save] [Cancel]EDIT ENTER

Press to accept the new synchro format. Changes will be stored in non-volatile flash memory. The set-up will not be lost if the unit is turned off.

EDIT ENTER

Press

to Save or

to Cancel changes.

H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(96/0-96) 360X +43’C [Menu] 1.6 Amp The user will then return to the operation display modus “Normal Display”. Use a multimeter to verify correct AC voltage at the synchro output. Measure R1R2 and combinations over S1/S2/S3.

7.6 How to customize the Synchro Output Format

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Caution ! Disconnect Synchro Load before changing the synchro format! If none of the standard defined synchro types fits the requirements – the user has the option to fully customise the synchro format as described below. Display menu items H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 50Hz(50/0-20) 360X +43’C [Menu] 1.6 AmpEDIT ENTER

Comments SR03-01 will after reset and when running normally show the “Normal Display” information. To enter the “Select Synchro Format menu press all the three buttons simultaneously. Press in 5 sec. and then release all. SR03-01 do now deliver ”Anschutz 2” format with 60Hz, 60 V AC reference and 0-24 V AC phase signals with a gear ratio of 360. Let‟s say we want to customize the synchro format. Do as follow. Press to be able to change. The blinking arrow “>”indicates edit mode.EDIT ENTER EDIT ENTER

Select Synchro Format Anschutz 2 60Hz(60/0-24) 360X [Menu] [Change]EDIT ENTER

Select Synchro Format >Anschutz 2 60Hz(60/0-24) 360X [Value][Accept][Value]EDIT ENTER

Press

or

to select “Custom Setup” format.

Select Synchro Format >Custom Setup 50Hz(0/0-0) 1X [Value][Accept][Value]EDIT ENTER

Press menu.

EDIT ENTER

to accept to enter ”Custom Setup”EDIT ENTER

Custom Ref. Frequency Frequency : 50HZ 400Hz(0/0-0) 1X [Menu] [Change]EDIT ENTER

To change between 50/60/400/500 Hz press and select new frequency. Accept with theEDIT ENTER

key

EDIT ENTER

key.

Custom Ref. Voltage Reference : 75 V AC 400Hz(75/0-0) 1X [Menu][Change][Menu]EDIT ENTER

Press for next or to change the frequency. The user can change the reference voltage (R1-R2) with 1 voltage step from 0 to 110 V AC.

Press for next menu or (R1-R2) voltage.

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EDIT ENTER

to change the

Custom Phase Voltage Phase : 0 V AC 400Hz(75/0-36) 1X [Menu][Change] [Menu]EDIT ENTER

The user can change the phase voltage with 1 voltage step from 0 to 100 V AC.

Custom Gear Ratio Gear : 180 50Hz(0/0-0) 180X [Menu][Change] [Menu]EDIT ENTER

Press for next menu or to change the frequency. The user can change the gear ratio in step with 1 from 1:1 to 1:360.

EDIT ENTER

Exit Custom Config Return to operator Normal Display [Exit] [Menu]EDIT ENTER

Press for next menu or to change the Gear ratio. This is the last menu item. No changes => no request for Save or Cancel.

EDIT ENTER

Save or Cancel Changes is made Save the new setting ? [Save] [Cancel]EDIT ENTER

Press to leave the ”Custom Config” menu. Changes will be stored in non-volatile flash memory. The set-up will not be lost if the unit is turned off.

EDIT ENTER

H1:359.3(HDT)->Out:359.3 H2: 0.3(HDM)H1-H2: -1.0 400Hz(75/0-36) 180X +43’C [Menu] 1.6 Amp

Press to Save or to Cancel changes. The user will then return to the operation display modus “Normal Display”. Use a multimeter to verify correct AC voltage at the synchro output. Measure R1R2 and combinations over S1/S2/S3.

7.7 Connect synchro LoadPOWER

When finished the change of the synchro output type you should do the following: 1. Press the Synchro Off key in 5 seconds to disconnect and fade out the synchro signals S1-3 and R1-2. This is an alarm situation where the display indicates “Synchro Out POWER’ed off”.ALARM

2. Press the RESET key to mute the buzzer. 3. Connect the mechanical repeaters cables – R1,R2,S1,S2,S3 – to SR03-01.POWER

4. Press the Synchro Off key in 1 second to connect and fade in (soft start) the synchro signals S1-3 and R1-2. The “Synchro Out POWER’ed off” will then disappear in the Normal Operation Mode display.

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8 Quick Set –up GuideQuick Set-up procedure Disconnect Synchro load from SR03-01. When replacing an old Gyro: Check the existing repeaters. One stuck repeater will sink 5-10 times more power than normal. Check mechanically all repeaters and the autopilot, including the synchro brushes. To configure SR03-01 we need the following data for the synchro motor in the mechanical repeater(s): Correct reference voltage R1/R2 Correct phase voltages S1/S2/S3. Reference frequency. Gear ratio. If you don‟t know the correct Phase voltage => Find it! Configure SR03-01 with the correct reference and phase voltage. If none of the standard synchro types fits - use the “Custom Setup” to configure by hand frequency, reference, phase voltage and gear ratio. Select protocols and baud rate for master heading 1 and if actual – backup heading 2.POWER

Chapter reference 11.4.2 Synchro Signal Output Connections.

Check Gyro or Mechanical Repeater manual.

7.3 Find the correct Phase voltage for the Mechanical repeater 7.5 How to change Synchro Output Format (example). 7.6 How to customize the Synchro Output Format 5 How to use the Main Menu

Press in 5 seconds to fade out the synchro signal. Connect mechanical repeater(s) to the SR03-01POWER

11.4.4 Synchro signal cabling faults and the related heading error.

at R1/R2 and S1/S2/S3 signals. Press in 1 second to fade in the synchro signal again. Align the mechanical repeater(s). If compass repeaters turns reversed or with poor accuracy -> check out reference. Verify synchro load. Normally a mechanical repeater requires 0.2 to 0.7 Amps @ 24 VDC. Check current withPOWER

5 How to use the Main Menu 11.4.4 Synchro signal cabling faults and the related heading error. 3 How to read the “Normal Display”

and without synchro load. Press - power button to turn off (5sec) / on (1sec) the synchro booster/amplifier. Use the Alarm relay output? 11.4.7 ALARM Relay Connection.

Use the Alarm ALR NMEA sentence output? Use the NMEA HDT output? Use the Optional Remote Control Unit? 5 How to use the Main Menu 5 How to use the Main Menu 11.4.11 REMOTE CONTROL Panel Connection 5 How to use the Main Menu

Change the current limiter for the SR03-01 input power. (Default Current limit =16 Amp @ 24VDC). Change “Compass Compare Limit” - default is 5.0 degree. Valid when dual heading input (both serial input 1 and 2). When using 2 heading compasses/sources and the heading monitor / compass compare functionality.

5 How to use the Main Menu

Use SR03-03 on the bridge to supervision of the two heading sources.

9 Compass Compare & Manual SwitchoverThe Compass Compare function compares two heading sources and gives an alarm if the difference exceeds the Compass Compare Limit (Default 5.0 degrees). This limit is adjustable in the Main Menu in the range from 0.0 to 20 degrees.

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Internal Memory Recovery Heading (RH) External Serial Heading Serial In 1 Heading (H1) Manual Switchover From Menu

Automatic Heading Selection Switchover

Filter

Heading * Gear Ratio Serial In 2 Heading (H2) Compass Compare Alarm Control

H1-H2

Synchro Output

Mech. Repeaters

Booster/Amplifier

Compass Compare Limit

SR03-01

Figure 7 Compass Compare/Heading flow

9.1.1 Automatic Switchover after reset The heading source to the Synchro output will be automatically switched: From Internal Recovery heading to Serial Heading 1 (H1). From Internal Recovery heading to Serial Heading 2 (H2). 9.1.1.1 From Internal Recovery Heading to Heading 1 (H1) or Heading 2 (H2) After reset SR03-01 will execute an automatic switchover from the internal recovery heading (RH) stored in non volatile memory and to one of the serial Heading 1 (H1) or Heading 2 (H2). The input heading 1 (H1) or 2 (H2) that SR03-01 reads first will automatically be selected as source for the Synchro Output. After power up SR03-01, it requires that one of the heading input sources 1 or 2 is valid (received and valid). If not - the automatic switchover will not be executed. The synchro heading will then still use the internal recovery heading.

9.1.1.2 Automatic switchover from Heading 1 (H1) to Heading 2 (H2) We will look at a situation where both serial heading inputs is configured, received, valid and we have no compass compare alarm. Normally the heading 1 (primary) is sourcing the synchro output. If then the heading source (gyro) 1 falls out the heading 2 will be automatically switched in. For safety reasons the automatically switchover function will not be handled back again from heading 2 to heading 1. 9.1.2 Manual Switchover when compass compare alarm If the difference between heading 1 and heading 2 exceeds the compare limit we will have a Compass Compare Alarm situation and the automatically switched over will NOT be executed. The user then needs to handle a Manual Switchover operation. It is possible to manually switch: From heading 1 to Heading 2. From heading 2 to Heading 1.

Reset

Recovery Heading (RH) Automatic

Automatic

Automatic & Manual Heading 1 Serial (H1) Only Manual Heading 2 Serial (H2)

Figure 8 Automatic / manual switchover diagram.

10 How the Alarm System Works10.1 Alarm levels

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SR03-01 has three different alarm levels: Warning, Alarm and Critical Alarms. 10.1.1 Warning When a “warning” occurs the following will be executed: => Send a NMEA ALR sentence. => Blink a message in the LCD display. => Blink the Red Alarm Led 10.1.2 Alarm When an “alarm” occurs the following will be executed: => Send a NMEA ALR sentence. => Blink a message in the LCD display. => Blink the Red Alarm Led => The Buzzer will be activated => Alarm Relay On 10.1.3 Critical Alarm When a “critical alarm” occurs the following will be executed: => Send a NMEA ALR sentence. => Blink a message in the LCD display. => Blink the Red Alarm Led => The Buzzer will be activated => Alarm Relay On => Disconnect Synchro Output. 10.1.4 Alarm Levels Summary Type Critical Alarm Warning NMEA ALR Yes Yes Yes LCD Msg. Yes Yes Yes Red LED Yes Yes Yes Buzzer Yes Yes No Relay Active Yes Yes No Synchro Out Disconnected Connected Connected

10.2 Alarm sourcesTable 2 NMEA Alarm identification Alarm Type Overload High Temperature Critical Temperature Panel Disconnected Heading 1 Alarm Heading 2 Alarm Heading 1 Missing Heading 2 Missing Not used Stuck Repeater Power Off Synchro Compass Compare Level Critical Warning Critical Alarm Alarm Alarm Alarm Alarm Warning Critical Alarm ALR ID 000 001 002 003 004 005 006 007 008 009 010 011 NMEA ALR c- -c “Description text” “Overload” " Temp>65 DegC " " Temp>70 DegC " " Lost User Panel " " Heading 1 Alarm " " Heading 2 Alarm " " Lost Heading 1 " " Lost Heading 2 " "Stuck Repeater" " Synchro Discon " “CompassCompareH1H2”

10.3 Alarms in line 3 in Normal Display10.3.1.1 Alarm indications If there are one or more alarm situations line 3 in “Normal Display” will toggle between active alarm with the highest priority and the Synchro output format. The table below shows the different alarm situation. Priority 1(Highest) 2 3 4 5 6 7(Lowest) Normal Alarm text in display line 3]. Synchro Out POWER’ed off Critical ! Synchro Off ! No external heading! Menu : Align Repeater Menu : Manual Switchover Aligning Repeater ! Stuck Repeater Detected 500H(110/0-86) 360X Comments Synchro output controlled with [POWER] button. Critical internal temperature or overload. Missing serial data heading in. SR03-01 needs to be aligned after power-up. Requires a human controlled manual switchover. Repeaters are under aligning. One or more repeaters are detected as stuck. No alarms => Synchro type information.

10.4 NMEA ALR & ACK serial output Alarm systemSR03-01 has an interface for CAM (Centralized Alarm Monitoring) systems. It is based on two NMEA transmit sentences: ALR Sentences “Set Alarm State” and one receive ACK Sentences “Acknowledge alarm”. Since SR03-01 do not support UTC (universal time coordinated), this field is empty (“,,”). 10.4.1 NMEA ALR Sentences “Set Alarm State” $nnALR,hhmmss.ss,XXX,A,A,c- -c*hh<CR><LF> Sentence $ nn ALR hhmmss.ss XXX A A c- -c *hh <CR><LF> Description Start of NMEA sentences. Talker ID (“XY” or Talker ID from heading input device ex. “HE” ) Set Alarm state command. Time of alarm condition change, UTS. NOT SUPPORTED (“,,”) ALR ID : Unique alarm number (identifier) at alarm source. Alarm condition (A=Threshold exceeded, V=not exceeded). Alarm‟s acknowledge state, A=Acknowledge, V=unacknowledged. Alarm description text. See Table 2 NMEA Alarm identification Checksum. Telegram termination.

10.4.2 NMEA ACK Sentences “Acknowledge alarm” $--ACK,XXX*hh<CR><LF> Sentence $ nn ACK XXX *hh <CR><LF> Description Start of NMEA sentences. Talker ID from acknowledge device - not decoded. Acknowledge alarm. ALR ID : Unique alarm number (identifier) at alarm source. Checksum. Telegram termination.

10.5 Alarm acknowledge10.5.1 Unacknowledged Alarms If the RED ALARM LED is blinking it indicates that there are one or more alarms that are not acknowledged. To acknowledge the alarm press the sentence to the SR03-01. 10.5.2 Button AcknowledgeALARM ALARM RESET

button or send a NMEA ACK

Pressing the RESET button on the Control Panel all unacknowledged alarms will be acknowledged. The RED ALARM LED will stop blinking and the buzzer will be muted. Alarms that do not exist any

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more will disappear from the Panel when the alarm is acknowledged. 10.5.3 NMEA ACK acknowledge The NMEA ACK sentence can acknowledge one alarm ID. When the SR03-01 receives NMEA ACK it will acknowledge only that alarm ID. If there are other unacknowledged alarms the RED ALARM LED will still be blinking indicating unacknowledged alarms. If all alarms are acknowledged the RED ALARM LED will turn steady on to indicate that there are alarms that have been acknowledged and still is active.

11 How to Install SR03-0111.1 Mechanical MountingThe SR03-01 must be mounted vertically to allow free airflow around and through the unit. There are four mounting holes with diameter 8mm. When the temperature inside the unit increases an Air Fan mounted inside the unit will start to force air through the enclosure and out through slots at the top of both sides. - It is necessary to keep these openings free from obstructions.

m 452 m

m 483 m

Ø8 ,00

269 m m 300 m m

1 m 24 m 1 m 33 m 1 36,5 m m

Figure 9 Unit Physical Layout & Measurements

m 420 m

11.2 Cabling & ConnectionsRead the following chapters for more information regarding cable types and description of each signal.

Compass Repeater (Mechanical/Synchro motor)R2 S3 S2 S1 L R1

R2 (Synchro Ref) S3 (Synchro Phase) S2 (Synchro Phase) S1 (Synchro Phase) Lamp (Optional) R1 (Synchro Ref)

TxDTxD+ RxDRxD+ TxDTxD+ RxDRxD+

RxD- (NMEA ALR/HDT in) RxD+ (NMEA ALR/HDT in) TxD- (NMEA ALR/ACK in TxD+ (NMEA ALR/ACK out RxD- (Remote Control Unit) RxD+ (Remote Control Unit) TxD- (Remote Control Unit) TxD+ (Remote Control Unit)

Centralized Alarm Monitoring or Heading Receiver

SR03-03 Remote Control Unit

RxDRxD+ RxDRxD+ NC NO COM NC NO COM

TxD- (Serial Heading 2 / Gyro Compass 2) TxD+ (Serial Heading 2 / Gyro Compass 2) TxD- (Serial Heading 1 / Gyro Compass 1) TxD+ (Serial Heading 1 / Gyro Compass 1) NC (Change over Relay Signal) NO (Change over Relay Signal) COM (Change over Relay Signal) NC (Alarm Relay Signal) NO (Alarm Relay Signal) COM (Alarm Relay Signal)

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0 V DC (Power Signal In) +24 V DC (Power Signal In)

11.3 Cable GlandsUse shielded cables. The cable glands are EMI type glands and require shielded cables. Make sure the unit is grounded properly through the Main Ground-Lug.

Figure 10 Enclosure bottom with Cable Glands, ventilation holes and Ground Bolt.

11.3.1 Cable Glands format There are seven cable glands with the following specification. Gland Type PG13.5 (4x) PG21 (3x) Torque 6.25 Nm 7.50 Nm Allowed Cable Size Min / Max Dia. 6 to 12mm 13 to 18 mm

Figure 11 Cable & Cable Glands Table 11.3.2 Installation instruction for EMC cable glands This is a watertight EMC adapted cable gland for cable with screen. The cable must be braided screened/armoured and the screen must be connected as the figure below indicates. Instructions: 1. Remove outer sheath of shielded cable. 2. Let the visible part of the shield be 10 mm. 3. Insert the cable into gland until screen and EMC insert contact is achieved, and then connects single cores. 4. Lock the cap and then tighten with the amount of torque given in the table.

Figure 12 Cable Glands 11.3.3 Recommended wire size The table below specifies the allowed wire size for the different inlet signals for SR03-01. Table 3 Allowed wire Signal Description EXT.REF ALARM RELAY Allowed Wire Size Min / Max Dia. 0,25 – 1,5 mm² 0,25 – 1,5 mm² Comments For future use.

CHANGE OVER HEADING 1 (H1) RX HEADING 2 (H2) RX CAN BUS POWER CAN BUS 1 CAN BUS 2 REMOTE CONTROL PANEL INTERCONNECTION ALR/ACK/HDT R1 R2 S1 S2 S3 +24 VCD 0 VDC 0,25 – 1,5 mm² 0,25 – 1,5 mm² 0,25 – 1,5 mm² 0,25 – 1,5 mm² 0,25 – 1,5 mm² 0,25 – 1,5 mm² 0,25 – 1,5 mm² 0,25 – 1,5 mm² 0,75 – 4 mm² 0,75 – 4 mm² 0,75 – 4 mm² 0,75 – 4 mm² 0,75 – 4 mm² 4 mm² 4 mm²

EIA 422 / IEC 61162-1 EIA 422 / IEC 61162-1 For future use. For future use. For future use. RS 422 cable EIA 422 / IEC 61162-1 Synchro Reference signal cable Synchro Reference signal cable Synchro Phase signal cable Synchro Phase signal cable Synchro Phase signal cable Power cable Power cable

11.4 Connection blocks11.4.1 Mains Power & Ground Connections Connect the 24 VDC Mains to the 20 ampere miniature circuit breaker, as the figure below illustrates. Beware of the polarity.

0VDC +24VDC

Figure 13 24 VDC Power Connection. Make sure the unit is grounded properly through the Main Ground-Lug. Figure 14 Main Ground-Lug

11.4.2 Synchro Signal Output Connections Inside the SR03-01 you will find the synchro connection block for the Synchro Output Signals where the reference R1, R2 and the phase signals S1, S2 and S3 are connected.

R1

NC S1 S2 S3

R2

Figure 15 Synchro Signal Connection Block 11.4.3 Synchro Signal Output Connections including the Repeater Light connected Inside the SR03-01 you will find the synchro connection block for the

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Synchro Output Signals where the reference R1,R2 and the phase signals S1, S2 and S3 are connected. As an option it is possible to source the Repeater with an additional Lamp signal which is in phase with one of the reference signals. PRECAUTION: The lamp signal is relative the Reference signal. Selecting wrong Reference signal relative the Lamp signal will give 4 times as high voltage as wanted and the lamp will blow! Verify the lamp voltage before connecting the lamp wire to the repeater. Maximum secondary transformer load is 70 VA. Primary side Black-Red Black-Red Secondary Yellow-Black Yellow-Red Turns ratio Prim/Sec 4.8 :1 1.26 :1 Primary 110 VAC Secondary : 23VAC Secondary : 87VAC

Connect the transformer to the Synchro Connector as Figure 16 Synchro Signal Connection Block Incl. Repeater lamp transformer illustrates.

Red to R1 Yellow to Lamp Black to R2

Figure 16 Synchro Signal Connection Block Incl. Repeater lamp transformer R1 LAMP S1 S2 S3 R2 11.4.4 Synchro signal cabling faults and the related heading error If there is mismatch between the Mechanical Repeater heading and the output from SR03-01 do the following: 1) If the mechanical repeater rotates in the reverse direction related to SR03-01 and the gyro - exchange cables S1 and S3. 2) Align all the mechanical repeaters. 3) If there still is mismatch between the Mechanical Repeater headings follow the flow chart below.

Start ”cable correction fault” procedure Change the gyro heading / SR03-01. Check if the mechanical repeater(s) do follow the same direction as master compass.

Move cable from connector S1 to S3. Move cable from connector S3 to S1.

Yes

Wrong rotation ?

No

Exchange S1 and S3

Align Mechanical Repeater

SR03-01 : Press [Power] button in 5 sec. This will turn OFF the synchro signal. Align repeater(s). Press [Power] button in 1 sec. This will turn ON the synchro signal again.

No The heading fault dependents‟ of the synchro gear ratio.

SR03-01 heading equal Mech. Repeater heading ?

Yes

No 360X ±0.5

If “heading difference equal” 180X 90X 36X 2X ±1.0 ±2.0 ±5.0 ±90

Yes 1X 180

Rotate S1 S2,S3 left

Move cable from connector S1 to S2. Move cable from connector S2 to S3. Move cable from connector S3 to S1.

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Exchange R1 and R2

Move cable from connector R1 to R2. Move cable from connector R2 to R3.

End. Correct cabling.

11.4.5 Small Signal Terminal Blocks Close to the small signal terminal block there are three holes to use strips to fasten the cables.

Figure 17 Small Signal Terminal Block 11.4.6 EXT. REF Connection – PREPARED FOR FUTURE USE

Not used.

11.4.7 ALARM Relay Connection This relay provides the user with two (2) Contacts, a Normally Open (NO) contact and a Normally Closed (NC) contact + a Common. SR03-01 State Power Down Critical alarm Running ok NO Open Open Closed NC Closed Closed Open

When an alarm is present and if the unit looses Power, the NO contact will “open” and the NC contact will “close”. During normal operation the NO contact is closed and the NC contact is open.

11.4.8 CHANGE OVER signal relay This relay provides the user with two (2) Contacts, a Normally Open (NO) contact and a Normally Closed (NC) contact + a Common. This signal is used to control the main Change Over Relay. SR03-01 State Power Down Critical alarm Running ok NO Open Open Closed NC Closed Closed Open

11.4.9 CAN bus interface

Not used.

11.4.10 HEADING Input 1 & 2 (RS422 Serial Data) Connect the heading 1 and 2 cables as shown below. Remember that heading 1 will be selected if both heading 1 and 2 is available. The input follows the IEC62162-1 standard and IEC62162-2 standard. If NMEA high speed is used with TxD+/ TxD-./ TxGND let the TxGND signal be protected and unconnected.

11.4.11 REMOTE CONTROL Panel Connection Connect the Remote Control Panel cables as shown. Connect the TX signal from the Controller Board with the RX signal to the Remote Control Panel. The Remote Control Panel also requires 24V DC input.

11.4.12 NMEA OUPUT Serial Data Connection Connect the NMEA serial channel for ALR/ACK and/or HDT sentences to the P1 (INTER CONNECTION) connection block. This is a full duplex RS422 interface and meets the IEC62162-1 & IEC62162-2 specification.

12 Technical Specifications12.1 Type approvalsApproved by DET NORSKE VERITAS according to IMO Res. IEC 60945 IEC 61162-1 IEC 61162-2 ISO 11674 A.694(17) General requirements for shipborne… Ed. 4 (2002-08) Maritime… General Requirements... Ed. 3.0 (2007-11) Maritime… Digital interfaces – Part 1… Ed. 1.0 (1998-09) Maritime… Digital interfaces – Part 2… Reg.4.3.11.5 (Heading Monitor)

See complete certificate at Compass Safety Distance

http://exchange.dnv.com/tari => search for “signal converters”. 50 cm.

Page 25: SR03-01 Universal NMEA to synchro converter

12.2 Electrical Specification12.2.1 24 Volt Power Input Supply Voltage: Power Consumption: Over voltage protection: Current inrush limiter 24V DC (-10% / +30%), 10-20 Ampere Max 40 - 250 watt depending on load A voltage sensing device trips the inlet fuse at 34 V DC. 12 Amp

12.2.2 Synchro Output Signal Synchro Frequencies: Max Synchro ROT: Synchro Reference: Synchro phase: Gear Ratio: Accuracy 1X: 50, 60, 400 and 500 Hz. 20 deg / second. From 1 to 110V AC From 0-1 to 0-100V AC From 1:1 to 1:360 ±0.4 degrees

The SR03-01 Produces the reference and phase Synchro Signals for all the following configuration types: Table 4 SR03-01 Configuration Types SYNCHRO OUTPUT Mfg Custom AMUR 1 AMUR 2 Anschütz 1 Anschütz 2 Gazelle 1 Hokushin 1 Hokushin 2 Hokushin 3 Kurs 1 Kurs 2 Gear Selectable 360X 360X 360X 360X 360X 360X 360X 360X 360X 360X Freq. Selectable 60 Hz 500 Hz 50 Hz 60 Hz 50Hz 50 Hz 60 Hz 50 Hz 50 Hz 60 Hz Ref (Phase Voltage) Selectable * 115V (0 to 52V) ** 115V (0 to 52V) ** 50 (0 to 20) 60 (0 to 24) 96 (0 to 96) 50 (0 to 68) 60 (0 to 82) 110 (0 to 55) 96V (0 to 44V) 115V (0 to 52V) ** Default

Microtecnica 1 Microtecnica 2 Microtecnica 3 Plath 1 Plath 2 Sperry 1 Sperry 2 Tokimek 1 Tokimek 2 Tokimek 3 Tokimek 4 VEGA-M 1 Yokogawa 1 Yokogawa 2 Yokogawa 3 Yokogawa 4 360X 360X 360X 360X 360X 360X 360X 90X 90X 360X 360X 360X 360X 360X 360X 360X 400 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 50 Hz 50 Hz 50 Hz 60 Hz 115V (0 to 90) ** 96 (0 to 75) 115 (0 to 90) ** 50 (0 to 68) 60 (0 to 82) 96 (0 to 75) 115 (0 to 90) ** 96 (0 to 75) 115 (0 to 90) ** 96 (0 to 75) 115 (0 to 90) ** 110 (0 to 40) 96 (0 to 75) 100 (0 to 90) 110 (0 to 90) 115 (0 to 52) **

Note * : Custom configurable (Default format) Frequency: 50/60/400/500 Hz. (Default 50Hz). Reference: 1 to 110 V AC/1 volt step. (Default 0 V AC). Phase signals: 1 to 110 V AC/1 volt step. (Default 0 V AC). Gear ratio: 1 to 360 / 1 gear ratio step. (Default 1X). Note ** : The synchro converter has a maximum reference voltage as 110 Volt AC output. For systems with reference like 115 V AC the phase voltage is reduced in percent equal reduction of the reference voltage from 115 to 110 V AC. Ex. “Yokogawa 4” deliver reference 110 V AC and phase voltage 50 V AC instead of reference 115 V AC and phase voltage 52 V AC. 12.2.3 Alarm Relay Output This relay provides the user with two (2) Contacts, a Normally Open (NO) contact and a Normally Closed (NC) contact + a Common. When an alarm is present and if the unit looses Power, the NO contact will “open” and the NC contact will “close”. During normal operation the NO contact is closed and the NC contact is open. The specification for the alarm relay is shown in the table below. Table 5 Alarm relay Alarm relay Contact Specification Current Voltage 1.0 Amp 30 VDC 0.3 Amp 110 VDC 0.5 Amp 125 VAC 12.2.4 Primary/Secondary Changeover Control Relay To setup a redundancy system with an additional SR03-01 as backup – the primary SR03-01 has a relay output signal to control an external changeover relay. This external relay will then switch the synchro signals between the main and backup converter (SR03-01). The external changeover relay needs five (5) poles/contacts for R1,R2,S1,S2 and S3. See Chapter 2.3 Redundant Operation w/one Gyro Compass.

The specification for the change over control relay is given below. Table 6 Change Over Control Relay Internal Change over relay Contact Specification Current Voltage 1.0 Amp 30 VDC 0.3 Amp 110 VDC 0.5 Amp 125 VAC 12.2.5 Serial Data Input (Heading 1 and 2) The serial data input is Optically Isolated and designed for RS422. The input will not be degraded if RS232 is connected. Meets the specification for IEC 61162-1 and IEC 61162-2. The receive circuit is designed for operation maximum 2.0 milliamp at differential input voltage of ±2.0 Volts. 12.2.6 Serial Data Output The serial data output channel for the NMEA ALR and NMEA HDT follows the IEC62162-1 and IEC62162-2. The number of NMEA HDT sentence per seconds is dependent of the baud rate: 10 sentences/sec for 4800/9600/19200 baud rates. 20 sentences/sec for 38400 baud rate.

12.3 Environmental SpecificationOperating temperature range Storage temperature range Protection Class IEC60945 Environmental class -15°C to + 45°C -20°C to + 70°C IP 22 Protected

12.4 Mechanical Specification12.4.1 Physical Specification of the Box Material Physical Net Size Physical Max Size Mounting

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Weight Aluminium, Aludine treatment, power coating. W x H x D: 300 x 420 x133 mm. W x H x D: 300 x 483 x136.5 mm. M8: Center-to-Center 269 mm x 457 mm Approx. 9.0 Kg

12.5 Configurable limitsThe following parameters can be configured in the main menu. Alarm activation limit Current overload Stuck repeater Compass Compare Settings range 5 to 20 amperes 1 to 10 amperes 1 to 20 degrees Default 16 amperes 1.5 amperes 5 degrees Comments (relative DC power in) (relative DC power in) (diff. btw two heading in)

12.6 Serial Data Input from Gyro Compass12.6.1 Protocols SR03-01 decodes the protocols shown in the table below. Table 7 Protocol settings Protocol NMEA --THS NMEA HEHDT NMEA HCHDT NMEA --HDT NMEA --HDM NMEA --HDG NMEA –VBW(*) Long water speed NMEA –VBW(*) Long ground speed NMEA PPLAN LR40 LR22 SKR8x RGC11Tokimec Anschütz C-Bus Sentence description $--THS,x.x,T*hh $HEHDT,x.x,T*hh $HCHDT,x.x,T*hh $--HDT,x.x,T*hh $--HDM,x.x,T*hh $HCHDG,x.x,x.x,a,x.x,a*hh $--VBW,x.x,,A,,,,,,,*hh Comments Gyro True Heading Gyro True Heading Magnetic heading General true heading Magnetic heading Magnetic heading Longitudinal speed (-9.90 to 0 to 89.90) knots (324.1 to 0 to 323.9) deg Longitudinal speed (-9.9 to 0 to 90) knots (324 to 0 to 324)deg True or magnetic. Heading Heading Heading Heading Stop 1 1 1 1 1 1 1 Parity No No No No No No No Data 8 8 8 8 8 8 8

$--VBW,,,,x.x,,A,,,,*hh

No

See description below. Specification upon request. Specification upon request. Specification upon request. Specification upon request.

1 1 2 1 1

No No Odd No No

8 8 8 8 8

Note * : Longitudinal water/ground speed inclusive alarm flag („A‟ = data valid, „V‟ = invalid data). Default protocol setting for serial input port 1 : NMEA HEHDT Default protocol setting for serial input port 2 : IDLE (not configured) 12.6.2 NMEA PPLAN-interpreter The PPLAN sentence has the possibility to setup the auto decoding algorithm to select between TRUE heading types or the MAGNETIC heading types. Table 8 NMEA PPLAN interpreter PPLAN Protocols --THS HEHDT HCHDT --HDT --HDG --HDM PPLAN Magnetic Priority Not valid Not valid 1(Highest) Not valid 2 3(Lowest) PPLAN True Priority 1(Highest) 2(Lowest) Not valid Not valid Not valid Not valid Comments True heading True heading Magnetic Heading True and Magnetic Magnetic Heading Magnetic Heading

12.6.2.1 NMEA sentence Timeout The NMEA sentence with highest incoming priority will source the synchro output signal. Heading with lower priority will be disregarded. 12.6.2.1.1 Validation time for selected heading sentence – 1 second The validation time for the heading with the highest priority is one second. If the duration between occurrences of this sentence exceeds 1 second the next valid NMEA heading will be selected.

12.6.2.1.2 Validation time for PPLAN sentence – 10 seconds If the PPLAN sentence disappears for more than 10 seconds the NMEA PPLAN-interpreter will not decode ANY NMEA heading sentences. 12.6.3 Baud Rate Baud Rate can be selected in the men as: 4800, 9600, 19200 or 38400 b/sec.

12.7 Synchro Output Signals12.7.1 Static Resolution & Accuracy Internally the SR03-01 uses a 16-bit angular resolution but for the

Page 27: SR03-01 Universal NMEA to synchro converter

output stage it is reduced to 12 bit to feed the analog to digital converters. The output-sampling rate is 1 KHz. The practical static accuracy is measured for 1X signal to be better than ±0.4 degrees. 12.7.2 Rate of Turn (ROT) The unit will drive the Synchro Repeaters with a maximum rate of turn (ROT) limited to 1200 degrees per minute (20 degrees/second) independent of gear ratio and reference frequency. 12.7.3 Data Filter & Signal Processing SR03-01 accepts heading update frequencies from as low as 1 update per second and up to 50 times per second for High Speed NMEA at 38400 bits/sec. Since the input data resolution is normally 0.1 degree with NMEA 0183, which is equal to 36 motor degrees at 360X - it is necessary to filter the data in order to create a smoothly varying Synchro Signal to run the Mechanical Synchro Repeaters. The filter used by SR03-01 is a Low Pass Average Filter with a Filter Length of 512 millisecond. 12.7.4 ”Lag Error” / “Schleppfehler” The Low Pass Average Filter creates a Dynamic Error (Lag Error or “Schleppfehler”) that is proportional to the Rate Of Turn (ROT). Since the filter has a constant delay we can describe in the table below the lag error. The only parameter for calculating the lag error is the rate of turn (ROT). Lag Error = ROT [deg/min] * (Filter Coefficient) [sec] / 60 [sec/min] ). = ROT [deg/min] * ( (0,512 / 2) [sec] / 60 [sec/min] ). = ROT [deg/min] * 4,2665*10E-3 [min]. [deg] [deg] [deg]

Table 9 Lag Error / Schleppfehler for different rate of turn Speed 60 [deg/min] 120 [deg/min] 600 [deg/min] 1200 [deg/min] Lag error 0,256 [deg] 0,512 [deg] 2,560 [deg] 5,120 [deg] Comment Slow speed Medium slow speed Medium high speed Maximum speed

13 Maintenance13.1 Dust filterInside the SR03-01 you will find two fans for cooling the amplifiers. A dust filter is installed at the air intake to protect the SR03-01 from dust inside. This filter needs to be cleaned when it gets contaminated. 13.1.1 Specification Filter material : Polyester foam 40 ppi (pores per inch). Size : 123mm x 83 mm x 6 mm. 13.1.2 Dust filter cleaning or exchange When the filter gets contaminated of dust SR03-01 needs to be cleaned or exchanged with a new one. 13.1.2.1 Interval The cleaning or exchange interval for the dust filter is dependent of how the environment around the SR03-01. If the temperature alarm occurs check the dust filter! 13.1.2.2 Procedure Type 1

1. Remove the filter cover from the SR0301 by unscrewing four screws. Figure 18 Remove filter cover

2. Then the filter is ready to be cleaned or exchanged.

Figure 19 Filter cover and filter removed 3. If it is necessary to change the fans, unscrew two screws at the top of the fan module. Then the fan module can be pulled straight out. Unplug the fan connector and install the new fan module and filter.

Figure 20 Fan module removed

13.1.2.3 Procedure – Type 2 Remove the filter cover from the SR03-01 by unscrew four screws.

Figure 21 Remove filter cover Then the filter is ready to be cleaned or exchanged.

Figure 22 Filter removed

14 TroubleshootingTest in display or other situation Display does not receive Message from the host. Check Rx cable from display to host cntr Tx. Host does not receive message from the display Check Tx cable from display to host Rx input Suspicious “Stuck Repeater” warning in the display. Comments Local Control panel or Remote Control Unit will give this RX – error if the display missing the data from the controller unit. Local Control panel or Remote Control Unit will give this TX – error if the host-controller missing the data from the local or remote display. After disconnecting / reconnection compass repeater(s) the load will change and the Stuck repeater warning will occur. Wait until the heading is changed enough to rotate the synchro motor one turn. (1 degree for a 360X system). Then acknowledge the stuck repeater alarm.

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15 Certificate and Guarantee

Certificate of GuaranteeThis instrument is guaranteed against defective materials and workmanship, for a period of 24 months from the date of shipment from Scandinavian Micro Systems. Proof of installation must be provided Scandinavian Micro Systems by completing and returning the attached "IMPLEMENTATION of GUARANTEE CARD" Under this guarantee Scandinavian Micro Systems will either repair at its factory or replace this instrument or parts thereof which become defective in proper use and normal wear and tear, provided the defective instrument or part is returned, carriage prepaid to Scandinavian Micro Systems. On board labor and traveling expenses are not covered under this guarantee. All requests for repair and replacement parts, printed circuit boards or units should be directed to the local representative for Scandinavian Micro Systems or directly to us. Please include type designation and serial number in all correspondence concerning this instrument. As far as possible, all guarantee service will be limited to exchanging printed circuit boards or units. All replacement parts, printed circuit board and units will be charged to the customer and refunded to him upon receipt of carriage prepaid said defective parts, printed circuit board and units. Scandinavian Micro Systems shall not in any way be liable for any consequential loss or damage occurring to any person, vessel, structure or building in which this instrument is permanently or temporarily located, nor to any person acting in connection with the instrument.

16 Sales and technical supportFor sales and technical support contact: Sales : [email protected] Support: [email protected] www.scansys.no

Scandinavian Micro Systems ASP.O. Box 155, Trollåsveien 36 N-1411 Kolbotn, NORWAY Phone: +47.6681.2740 / Fax: +47.6680.8095

Scandinavian Micro Systems Inc.2800 Marina Mile Boulevard, Suite 101 Fort Lauderdale, Florida 33312, USA Phone +1 954.583.5700 / Fax: +1 954.583.3699


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