SC4850E-ZYT User Mannual (V100R001_01).pdf

8/15/2019 SC4850E-ZYT User Mannual (V100R001_01).pdf

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SC4850E-ZYTV100R001

User manual

Issue 01

Date 2012-02-15

HUAWEI TECHNOLOGIES CO., LTD.


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Issue 01 (2012-02-15) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd

i

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior

written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and

the customer. All or part of the products, services and features described in this document may not be

within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,

information, and recommendations in this document are provided "AS IS" without warranties, guarantees orrepresentations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

http://www.huawei.com/mailto:[email protected]:[email protected]://www.huawei.com/


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User manual About This Document



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About This Document

PurposeThis document describes the SC4850E-ZYT solar controller in terms of its main functions,

appearance, application scenarios, configurations, port description, installation,

commissioning, and maintenance.

Intended Audience

This document is intended for:

Technical support engineers

Maintenance engineers

Test engineers

Symbol ConventionsThe symbols that may be found in this document are defined as follows.

Symbol Description

Alerts you to a high risk hazard that could, if not avoided,

result in serious injury or death.

Alerts you to a medium or low risk hazard that could, if notavoided, result in moderate or minor injury.

Alerts you to a potentially hazardous situation that could, if not

avoided, result in equipment damage, data loss, performancedeterioration, or unanticipated results.

Provides a tip that may help you solve a problem or save time.

Provides additional information to emphasize or supplementimportant points in the main text.


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User manual About This Document



iii

Change History

Changes between document issues are cumulative. The latest document issue contains all the

changes made in earlier issues.

Issue 01 (2012-02-15)

This issue is used for first office application (FOA).


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User manual Contents



iv

Contents

About This Document .................................................................................................................... ii

1 Introduction.................................................................................................................................... 1

1.1 Principles ............................................................ .............................................................. ................................ 1

1.2 Features ............................................................................................................................................................ 2

1.3 Functions ............................................................ .............................................................. ................................ 2

1.4 Technical Parameters ............................................................... ............................................................... .......... 9

2 Installation and commissioning ............................................................................................... 11

2.1 Safety Regulations ......................................................................................................................................... 11

2.2 Installation And Cable Connection ................................................................ ................................................. 11

2.2.1 Installation Preparation ......................................................................................................................... 11

2.2.2 Installing Controller ................................................................................................ .............................. 13

2.2.3 Connecting Cables ................................................................................................................................ 15

2.2.4 Sealing Cable Entry Holes ............................................................................................................ ........ 17

2.3 Commissioning .............................................................................................................................................. 18

2.3.1 Startup Check ................................................................. ............................................................... ........ 18

2.3.2 Power On And Commissioning ............................................................ ................................................. 18

2.4 Final Steps .......................................................... .............................................................. .............................. 20

3 Use of monitoring board ............................................................................................................ 22

3.1 Front Panel ..................................................................................................................................................... 22

3.2 Querying Status ............................................................. .............................................................. ................... 23

3.3 Querying Active Alarm ...................................................................... ............................................................ 25

3.4 Setting Parameters ......................................................... .............................................................. ................... 26

3.5 Maintenance ....................................................... .............................................................. .............................. 29

3.6 Querying History Alarm .......................................................... ............................................................... ........ 30

4 Appendix ...................................................................................................................................... 31

A Acronyms and Abbreviations .................................................................................................. 33


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User manual 1 Introduction



1

1 IntroductionThis chapter introduces the principles, features, functions and technical parameters of the

SC4850E-ZYT solar controller (controller for short).

1.1 Principles

The controller is used in the solar energy system for the outdoor wireless communication

stations. The photovoltaic arrays supplies power to the controller. The controller controls the photovoltaic arrays to start working or to stop working, to generate voltage and current to

charge the batteries and supply the load. During nights and cloudy days, the batteries sustainthe load.

The schematic diagram of the solar energy system is shown in Figure 1-1.

Figure 1-1 Schematic diagram of the solar energy system

By controlling the input power panel, the controller stabilizes the battery voltage withina specified range, and determines the battery charge state according to the capacity andvoltage of the battery.

When the battery voltage is too low, the output power panel will disconnect the loads to protect the battery.


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The controller has a monitoring board, which is used to monitor the operation of thecontroller, control each input power panel and output power panel, and carry out batterymanagement.

The monitoring board provides the RS232/RS485 port, alarm dry contact input port,

alarm dry contact output port, battery temperature sensor port and so on.

1.2 Features The large LCD enables you to understand the operation conditions of the controller and

the battery status.

The controller uses PWM mode and ON/OFF mode to control photovoltaic array input,taking full advantage of solar energy input.

The parallel connection two controllers can work together for power supply. The controller has ultra low radiation. The advanced EMC design satisfies IEC61000-4

requirements.

The safety design of the controller is compliant with IEC60950-1 standard.

The controller provides excellent battery management functions, including batteryundervoltage disconnection (BLVD), temperature compensation, and auto voltage

regulation.

The controller has complete protection functions and fault alarm functions.

1.3 FunctionsThe controller has the following functions: array management function, protection function,

measurement function, alarm function, alarm input function, alarm output function, controlfunction, communication function, display function, history data record function and batterymanagement function. The detailed descriptions are given below.

Array management function

The controller uses PWM mode (default) and ON/OFF mode to charge batteries. In PWM

mode, the controller controls the switching of the arrays and takes full advantage of the solar

energy system through high frequency switch according to operation status of the solar

energy system. In ON/OFF mode, the controller performs switching control of the arraysthrough switching on and off of the power module.


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Protection function

Table 1-1 Protection function

Function Description Remark

Inputovercurrent protection

When one photovoltaic panel route hasovercurrent (adjustable, see 3.4 SettingParameters for the setting range), the

controller will carry out current control. If the

current is too large, the corresponding MCBwill trip.

When the fault is clear, thecontroller will resumeautomatically. The

tripping MCB should be

switched on manually.

Output

short-circuit

protection

When one load output is short-circuited, the

corresponding MCB will trip.

The fault must be cleared

before the MCB of a

short-circuited load outputcan close.

Battery

overcurrent protection

In case of battery overcurrent, the

corresponding MCB will trip.

The MCB needs to be

closed manually

Over

temperature protection

When the battery temperature is over 50°C

(adjustable, see 3.4 Setting Parameters), thecontroller will generate an overtemperature

alarm.

When the battery temperature is over 60°C(adjustable, see 3.4 Setting Parameters), the

controller will disconnect the photovoltaic panel input and perform overtemperature protection.

In overtemperature

protection state, the battery will disconnect the

photovoltaic panel,lowering the utility rate insunny days. Therefore the

overtemperature functionis disabled by default.

When the batterytemperature is normal, the

controller will resume

automatically.

Surge

protection

The controller has an internal SPD that can

achieve surge protection. When the SPD isfound faulty, the controller will generate anSPD fault alarm. Compliant with Class C

surge protection standard.

If the SPD is faulty, users

need to replace itmanually.

Measurement function

Table 1-2 Measurement function

Signal Measurement range Accuracy Environmentalrequirement

Open circuit voltage of

photovoltaic panel36 V DC–100 V DC ±0.2 V DC Ambient

temperature:

25°COperating current of

photovoltaic panel0A – 50A ± 0.5A


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Signal Measurement range Accuracy Environmentalrequirement

Busbar/ battery voltage 36 V DC – 60 V DC ±0.2 V DC

Total charge/ discharge current

of the batteries-20A – +50A ± 0.5A

Load current 0A – 20A ± 0.5A

Battery temperature -20° – 80°C ± 3°C

Alarm function

The alarms are displayed on the LCD of the monitoring board, and are indicated by indicators.

The alarms can be set through the monitoring board. The setting method is described in3.4Setting Parameters.

Table 1-3 Alarm function

AlarmName

Alarmlevel

Alarm Symptom AlarmTriggeringCondition

AlarmClearanceCondition

HighVolt

AlarmMinor The yellow indicator

on the LCD turns on,

and the Active Alarmon the LCD shows BattOver Volt

The busbar

voltage is higher

than the batteryovervoltage alarmthreshold

The busbar

voltage is lower

than the batteryovervoltage alarmthreshold

LowVolt

AlarmMinor The yellow indicator

on the LCD turns on,and the Active Alarm

on the LCD showsLowVolt Alarm

The busbar

voltage is lowerthan the battery

undervoltagealarm threshold

The busbar

voltage is higherthan the battery

undervoltagealarm threshold

LVD Critical The red indicator on

the LCD turns on, and

the Active Alarm on

the LCD shows that theLVD Alm

The busbar

voltage is

continuously

lower than theload undervoltage

disconnectionthreshold

The busbar

voltage is higher

than the LVD

threshold

Array

OverVoltMinor The yellow indicator

on the LCD turns on,and the Active Alarmon the LCD showsArray OverVolt

The open circuit

voltage of thearray is higherthan the ArrayOverVolt

threshold

The open circuit

voltage of thearray is lowerthan the ArrayOverVolt

threshold


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AlarmName

Alarmlevel

Alarm Symptom AlarmTriggering

Condition

AlarmClearance

Condition

ArrayOverCurr

Minor The yellow indicatoron the LCD turns on,and the Active Alarm

on the LCD displays

Array OverCurr

The workingcurrent of thearray is higher

than the Array

OverCurrthreshold

The workingcurrent of thearray is lower

than the Array

OverCurrthreshold

Array lost Minor The yellow indicator


and the Active Alarm

on the LCD displays

Array Lost

After deterring

array lost

Array is

connected

normally

Array

reverseCritical The red indicator on


the Active Alarm onthe LCD displaysArray reverse

The input

polarities of the

array are reverselyconnected,

The open-circuit

voltage is higher

than 0V

* M1Short Alm

Critical The red indicator onthe LCD turns on, and

the Active Alarm on

the LCD displays thatthe M1 Short Alm

The M1 board isshort circuited

The faulty is clear

* M1

Break

Alm

Critical The red indicator on


Active Alarm on the

LCD displays that theM1 Break Alm.

The M1 board is

circuit open.The faulty is clear

Batt

Over-tempMinor The yellow indicator



on the LCD displaysBatt Over-temp

The battery

temperature is

higher than the

batteryovertemperature

alarm threshold

The battery

temperature is

lower than battery

over-temperaturealarm threshold

(5°C)

Load Over

CurrMinor The yellow indicator

on the LCD turns on,and the Active Alarmon the LCD displays

Load Over Curr

The load current is

higher than theOver LoadCurrthreshold

The load current

is lower than theOver LoadCurrthreshold

SPD fault Minor The yellow indicator


and the Active Alarmon the LCD displays

SPD Fault

The SPD is faulty The SPD

functions

properly


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AlarmName

Alarmlevel

Alarm Symptom AlarmTriggering

Condition

AlarmClearance

Condition

Controllerfault

Minor The yellow indicatoron the LCD turns on,and the Active Alarm

on the LCD displays

Controller Fault

The control boardis faulty or whenthe two parallel

controllers

communicate isfaulty.

The control boardfunctions properly

Battery

circuit

open

Critical The red indicator on


the Active Alarm on

the LCD displays

Battery circuit open

The battery circuit

is open

The battery

circuit is closed

Load

MCB tripCritical The red indicator on


the Active Alarm onthe LCD displays LoadMCB Trip

The load MCB

trips

The load MCB is

closed

AuxCharge

Fail

Notes: M1 board is

the

power-control board

incontroller.

The yellow indicatoron the LCD turns on,


on the LCD displaysAux Charge Fail.

The Auxiliarycharge battery

abnormally

The Batt voltageup to 53V or

Auxiliary is

turned out

Temp

SensorFail

minor The yellow indicator

on the LCD turns on,and the Active Alarm

on the LCD displays“Tem p Sensor Fail”

Battery

temperaturesensor

disconnected orfault alarmthreshold

Battery

temperaturesensor connection

properly.

InputAlarm

Minor The yellow indicatoron the LCD turns on,


on the LCD displays“Input Alarm”

The Input drycontact status is

alternative alarm

threshold.

The status goes back formaly

Batt Over

CurrMinor The red indicator on


the Active Alarm on

the LCD displays thatthe Batt Over Curr.

The battery charge

current is higher

than the product of

battery ratedcapacity

multiplyingcurrent limitcoefficient.

The battery

charge current is

lower than the

product of batteryrated capacity

multiplyingcurrent limitcoefficient.

Notes: M1 board is the power-control board in controller.


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Alarm input function

Table 1-4 Alarm input function

Dry contact type Dry contact state

Normally-open, Normally-closed Normally-open: open upon normal input; closedupon alarm input

Normally-closed: closed upon normal input;open upon alarm input

Alarm output function

Table 1-5 Alarm output function

Output drycontact SN

Output dry contact alarm Dry contact state

Output dry

contact 1

Controller fault (settable, see Table 3-4 in 3.4

Setting Parameters3.4 Setting Parameters) Normally-open.

Output dry

contact 2

Battery undervoltage (settable, see Table 3-4 in

3.4 Setting Parameters)

Control function

The controller has two control modes: auto control and manual control.

In auto control status, the controller will perform control functions according to preset

parameters and logic automatically.

In manual control status, users can control connections of the photovoltaic panels andloads through keyboard on the controller panel or host.

Communication function

The controller can communicate with the host through RS485/RS422 port. The controller

parameter, maintenance parameter and adjustment parameter can be set through the host. Itcan read the measurement values, active alarms, history alarms and history data. The protocol

format complies with the master/slave protocol.

Parallel connection

The controller can work in parallel-connection model. Each controller communicates with thehost through RS485 and can port. They can identify host/master controller automatically andcommunicate with computer or monitor. The parallel connected controllers can synchronize

automatically.


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Display function

The controller uses a 128 × 64 LCD, which displays real-time controller and battery status,

measurement values and alarms.

Historical data record function

The controller can record data up to 31 days, including the data about:

− The highest battery temperature every day

− The lowest battery temperature every day

− The highest battery voltage every day

− The lowest battery voltage every day

The controller can record 100 historical alarms, including the following alarm information:

− Alarm content

− Alarm start time and end time

− Load current and battery voltage in the alarm time (available through the host)

Battery management function According to input current and voltage, battery capacity, load status and busbar voltage,

the controller performs battery management to ensure the efficient charge and dischargeof the battery, so as to prolong the battery lifetime and make efficient use of the solar

energy.

In the auto-state, the controller carries out automatic control according to the preset parameters and logic in order to make full use the energy input from the array.

In battery FC mode, the busbar voltage is controlled within ±0.6V of the preset FC point.

In battery BC mode, the busbar voltage is controlled within -1.2V of the preset BC point.

If controller uses PWM mode, the conditions for FC/BC transition are as follows:

In battery FC state, the controller will control the battery to enter BC mode when the FC

voltage decreases to a point lower than the preset “FC to BC voltage” and BC interval

has been more than 1 hour.

In battery BC state, the controller will control the battery to enter FC mode when the BCvoltage is -1.2V higher than the preset BC voltage and BC has kept for more than 2

hours, or when BC time has reached the maximum time limit.

If controller uses ON/OFF mode, controller will manage array input based on the defaultON/OFF logic.

In the manual state, you can control the On/Off of the photovoltaic panels and

connection/disconnection of loads through the operation panel or through the host.


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1.4 Technical Parameters

Table 1-6 Controller technical parameters

Type Item Description

Environment Operating

temperature-20°C – +55°C

Storage temperature -40°C – +70°C

Relative humidity 0 – 95%RH

Altitude ≤5500m (derating is necessary above 3,000m.

Rated current decreases 5A for every 1000m

higher)

Others No conductive dust or erosive gases. No possibility

of explosion

DC input Input route 9 routes

Input current Rated current: 50A. Overcurrent alarm point: 55A

(adjustable. See 3.4 Setting Parameters)

Input voltage Rated input voltage: 48 V DC. maximum open

circuit voltage: 96 V DC

DC output Output route 25A × 1 (MCB), 10A × 2 (MCB), 6A × 1(MCB)

Output current Rated load current: 20 A

Output voltage Rated voltage: 48 V DC

Maximum allowable output voltage: 60 V DC

Efficiency ≥ 99%

Battery

configurationInput interface One route. If the route is open, the controller will

stop working

Capacity 50 Ah - 5000 Ah

EMC Conducted emission Class B IEC61000-4

Radiated emission

Immunity to EFT Level 3 IEC 61000-4-4

Immunity to ESD Level 3 IEC61000-4-2

Immunity to surges Level 3 IEC61000-4-5

Immunity to radiation Level 2 IEC61000-4-3

Immunity to

conductionLevel 2 IEC61000-4-6


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Type Item Description

SPD Lightning protection

features

The photovoltaic arrays input port and load port are

configured with SPD, whose rated capacity is 20kA and maximum capacity is 40 kA

Safety Standard Compliant with IEC60950 standard

Insulation resistance At temperature of 15°C - 35°C and relative

humidity not higher than 90%RH, apply a test

voltage of 500 V DC. The insulation resistance between DC circuit and earth is not less than 2 MΩ

Insulation strength (Remove the SPD from the system before the test.)

Input/ output circuit to earth: 1414 V DC

Input/ output circuit to communication outputcircuit: 2828 V DC

Input/ output circuit to dry contact: 1414 V DC

Communication output circuit to dry contact: 1414

V DC

For all the three tests above, there should be no

breakdown or flashover within 1 min, with leakagecurrent not bigger than 10 mA

Other MTBF 100000hr (Bellcore TR-332 reliability forecast), at

25°C

Protection level IP55

ROHS Compliant with R5 requirement of ROHS

Mechanical Dimension (mm) 260 (W) × 195 (H) × 390 (D)

Weight (kg) ≤ 10 (without packaging)


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User manual 2 Installation and commissioning



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2 Installation and commissioningThis chapter introduces installation, cable connection, commissioning and later-phase works.Before installation, read through 2.1 Safety Regulation and Safety Precaution, and then followthe instructions to carry out the installation and connect cables step by step.

2.1 Safety RegulationsCertain components in this controller have hazardous voltage and current. Adhere to thefollowing instructions:

Only qualified personnel with sufficient knowledge of the controller can carry out the

installation. The safety precautions and local safety rules shall be adhered to during the

installation.

All external circuits that are below 48 V DC and connected to the controller must complywith the requirements of SELV as defined in IEC 60950.

Make sure that the power to the controller is cut off before any operations can be carriedout within the controller.

After the installation and the commissioning, the controller shall be kept locked and thekey should be kept in possession by corresponding personnel.

The wiring of the power distribution cables should be arranged carefully so that the

cables do not come in contact with the maintenance personnel.

All the tools must be insulated and antistatic.

2.2 Installation And Cable Connection

2.2.1 Installation Preparation

Unpacking inspection The equipment should be unpacked and inspected after it arrives at the installation site.

The inspection shall be carried out by representatives of both the user and HUAWEI Co.,

Ltd.


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To inspect the equipment, you should open the packing case, take out the packing list

and check whether the equipment is correct and complete accordingly to the packing list.Make sure that the equipment is delivered intact.

Preparing cables

The cable should be selected in accordance with relevant industry standards. The CSA of DCcable depends on the current flowing through the cable, the allowable voltage drop and load peak current. The cable list is given in Table 2-1.

Table 2-1 Cable list

Connectionpoint

RecommendedCSA

Recommended cablecolor

Recommendedmax. distance

Battery to

controller

16 mm2 Blue for negative and

black for positive

13 m

Controller

grounding cable10 mm

2 Yellow-green 1.8m

Note: the actual cable CSA and color may differ in actual configuration

Select the battery cable CSA according to Table 2-2.

Table 2-2 Battery cable CSA selection

Battery fuserated current

Max.batterycurrent

Min.cableCSA

Terminal specs Max. cable length(allowable voltagedrop: 0.5V)

100 A 60 A 16 mm2 H shape terminal 8 m

Note:

1. The specs are applicable at ambient temperature of 25°C. If the temperature is higher orlower than this, the CSA of the cable should be increased.

2. The battery cable should reach at least +70°C heat durability

Select the load cable CSA according to Table 2-3.

Table 2-3 DC load selection

Loadrouteratedcurrent

Max.outputcurrent

Min.cableCSA

Max. cable length(volt drop: 0.5V,with min. CSA)

Max. cable length (voltdrop: 0.5V, with max.CSA)

25 A 20 A 6 mm2 19 m 52 m

10 A 8 A 4 mm2 19 m 52 m


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Loadrouterated

current

Max.outputcurrent

Min.cableCSA

Max. cable length(volt drop: 0.5V,with min. CSA)

Max. cable length (voltdrop: 0.5V, with max.CSA)

10 A 8 A 4 mm2 19 m 52 m

6 A 5 A 4 mm2 19 m 52 m

To make sure that the MCB works properly upon overloads, the MCB capacity should be

kept within 1.5 - 2 times the rated load capacity.

The CSA of the grounding cable should be not less than 6 mm2.

The battery MCB and load MCBs use H shape terminal to connect. Or users use cableswith insulation layers broken up to connect to the load MCBs.

There are six PG21 cable entry holes at the bottom of the controller.

2.2.2 Installing Controller

The controller installation modes include wall mounting and mast mounting.

Before determining the specific installation position of the cabinet, make sure that there is an800 mm maintenance space in the front of the cabinet. The installation steps are shown inFigure 2-1.

1. Mount expansion bolts into the wall through the eight installation holes shown in Figure

2-1, it is recommended to use M4× 8 bolts to install the four hangers.

Figure 2-1 Installation dimesions(unit:mm)

2. In either wall mounting or mast mounting, it is recommended to use M10 socket spannerand M10 × 16 bolts. The installation diagrams of wall mounting and mast mounting areshown in Figure 2-2 and Figure 2-3.


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Figure 2-2 Wall mounting

Figure 2-3 Mast mounting


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2.2.3 Connecting Cables

The controller uses bottom cabling method. The connection terminals are shown in Figure

2-4.

Figure 2-4 Cable connection of the controller

The following precautions should be taken in the cable connection operation.

1. Before connecting battery cables, users should check the polarities of the cables against

those of the batteries and switch the battery MCB to ensure safety.

2. After the check, connect the positive battery cables to the positive busbar. Connect the

negative battery cables to the battery MCB.

3. Check once again that the polarities of the cables connected to the positive busbar and

battery are correct.

WARNING

Reverse connection or short-circuit of the battery might cause the battery to burn or other

major failures, and even endanger personal safety. Only experienced processionals areallowed to connect the batteries. During the operation, pay attention to polarities and prevent

shortcircuit to ensure personal safety.

Prepare cables according to Table 2-4, and connect the cables.


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Table 2-4 Cable connection description

Cable Color Amount Connection

From ToArray input

cables

Positive

(+)Black 9 Positive

electrode of the

array

Positive

electrode of the

controller (9routes)

Negative

(-)Blue 9 Negative

electrode of thearray

Negative

electrode of thecontroller (9

routes)

Battery cables Positive

(+)Black 1 Positive

electrode of the battery string

Positive

electrode of thecontroller (1route)

Negative(-)

Blue 1 Negativeelectrode of the

battery string

Negativeelectrode of the

battery of the

controller (1route)

Output cables Positive

(+)Black 4 Positive

electrode of the

controller (4

routes)

Positive

electrode of the

load

Negative

(-)Blue 4 Negative

electrode of thecontroller (4

routes)

Negative

electrode of theload

Communication

cables 1T+ / 1 Controller

J16_T+

Other monitor

devices

T- / 1 Controller

J16_T-

Other monitor

devices

R+ / 1 Controller

J16_R+

Other monitor

devices

R- / 1 ControllerJ16_R-

Other monitordevices

Communication

cables 2(Parallel

Connection)

T+ / 1 Main controller

J17_T+

The other

controllerJ16_T+

T- / 1 Main controller

J17_T-

The other

controller

J16_T-


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Cable Color Amount Connection

R+ / 1 Main controller

J17_R+

The other

controller

J16_R+

R- / 1 Main controller

J17_R-

The other

controller

J16_R-

Communication

cables 3

(Parallel

Connection)

CAN+ / 1 Main controller

J12_CAN+

The other

controller

J12_CAN+

CAN- / 1 Main controller

J12_CAN-

The other

controller

J12_CAN-

Auxiliary

power supplycable

J6 Blue-Black Connected

already incontroller

J6 on main

board

PGND bar Metal 1 Positive busbarof the

controller

Groundingterminal of the

controllerhousing

Grounding cable Yellow-green 1 Grounding

screw of thecontroller

housing

Ground or

support

Note:

1. The positive electrode of the busbar of the controller is connected to the grounding point ofthe controller housing at factory, users need to check it .

2. You should put the cables through the cable entry holes at the bottom, and then crimp the

cable tap. The positive busbar uses OT lugs for connection. For Negative electrodes, you caneither use H-shape terminals, or crimp-connect after peeling off the insulating coating.

3. The load cable is provided by the equipment that uses power.

4. Make sure that all MCBs and fuses are disconnected before the cable connection.

5. Colors of the cables can be adjusted on site according to actual situation.

2.2.4 Sealing Cable Entry Holes

For outdoor controllers, users should seal the cable entry holes after the installation. The

procedures are as follows:

For used holes, tighten them with PG caps.

For holes with a small cable or with several cables, block them with caps and seal them

with waterproof mud (accessory).

For unused holes, block them with cables and seal them with waterproof mud.


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Remark: It supports the installation of OMU-B. For details, please refer to the "OMU-B User

Manual".

2.3 Commissioning

2.3.1 Startup Check

Check the items given in Table 2-5 and record the check result. Ensure that the componentsare installed firmly and the cables are connected properly.

Table 2-5 Checking items before startup

Type Checking item Content

ArrayInput

Input cables The polarities are correct. The connections are proper. All the input and output MCBs areswitched off

Between positive and

Negative terminals No shortcircuit

Output Output cables The polarities are correct. The connections are

proper. All the input and output MCBs areswitched off

Between positive and Negative terminals

No shortcircuit

Battery Battery cables The polarities are correct. The connections are proper

Between positive and

negative battery terminals No shortcircuit

2.3.2 Power On And Commissioning

The power on and commissioning procedures of the controller are as follows.

1. Battery polarity check and connection

Check that the polarities of the two batteries are correct and switch on the battery MCB.Meanwhile the auxiliary power supply of the monitoring board in the controller starts to work.

The monitoring unit starts self-checking. After the self-checking, the first information screenwill appear, as shown in Figure 2-5.


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Figure 2-5 First information screen

Check the alarm status of the monitoring module. When the red and yellow indicators on the

monitoring module are off, it means that everything is normal. After the startup, the redindicator and the yellow indicator of the monitoring module might be on. Users may remove

the alarms according to Table 1-3.

When the checks are normal, please switch on the input MCB of the photovoltaic array.

2. Load polarity and connection check

Check that the connection of the load cables, the MCB capacity of the load is proper, and the polarities of the load are correct. After making sure that everything is okay, go on to the next

step.

3. Battery busbar voltage measurement

Use a multimeter to measure the battery busbar voltage. If the busbar voltage is within thenormal voltage (48V - 55V), switch on one load MCB. Check that the battery busbar voltage

is within the normal range after the load starts up and works normally. If the battery busbarvoltage is close to 47V, do not switch on the next load MCB until the batteries are properly

charged. Repeat the operation until all the loads are powered on and work normally.

4. Parameter setting

Set the significant parameters according to the parameter card which is delivered with thecontroller.

Enter the corresponding operation interface and enter the password to set the parameter, see 3.4 Setting Parameters.

1) Battery parameter setting

Set the battery capacity according to the total capacity of the batteries actually configured, andset busbar overvoltage alarm point, busbar undervoltage alarm point and busbar undervoltage

protection point in accordance with the battery features.

If the controller is configured with battery temperature sensor, users need to set the battery

overtemperature alarm point and battery overtemperature protection point. If not, users do not

need to set these parameters.

2) Set system control method

The controller provides two photovoltaic array control methods: PWM method and ON/OFFmethod. Users select control method according to their need. PWM method is recommended.

3) Local address: 4 (default).

Notes: Controller local address should be setup the same as each other in parallel connection.

4) Default protocol: Master-Slave protocol.


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5) Time: in accordance with actual time and date.

6) The controller will assume defaults for the parameters not configured during the

commissioning.

7) For significant parameters, it is recommended to use default settings if not specified.

8) Set jumpers of the board card according to actual situation, as listed in Table 2-6.

Table 2-6 Jumper setting list

SN Screenprint

Parameter Settings Default

1 SIP1 Output dry

contact 1Pins1,2short-circuited:normally-closed;

pins2,3short-circuited: normally-open.

Normally-open

2 SIP9 Output dry

contact 2Pins1,2short-circuited:normally-closed;

pins2,3 short-circuited: normally-open.

Normally-open

Notes: Keep default parameters.

5. General parameter setting

For the photovoltaic array open-circuit-voltage too high alarm point and photovoltaic inputovercurrent alarm point, set these parameter according to the maximum open circuit voltage

and the shortcircuit current of the photovoltaic arrays, and the allowable setting range listed in

Table 1-2

When parallel connection system, all of the two controllers parameters will be the same afterCan cable connecting except Output/Input dry contact and address. If parameter of onecontroller is setup, the correspondence parameters of other controller keep synchronization

automatically.

6. Alarm check

After the parameter settings, the system status should be „No alarm‟. If the system status is

„Alarm‟, check the alarm by referring to 3.3 Querying Active Alarm and clear the alarm.

7. History alarm clearing

Clear history alarm generated during the commissioning by referring to 3.6 Querying HistoryAlarm. All the alarms will be cleared out in parallel connection.

8. The return to the system information screen

Press ESC to return to the system information screen.

2.4 Final Steps After the installation and commissioning, fill in the parameter card with the actual parameters.

Clear the installation field.

Sort the accessories and store them properly.


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Lock the controller cabinet. Keep the key.


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User manual 3 Use of monitoring board



23

Indicator Color Normalstate

Faultstate

Fault cause

- Off The SC4850E has no power input.

Alarmindicator

Yellow Off On There are minor alarms

Critical

alarmindicator

Red Off On There are critical alarms

The monitoring board uses a 128 × 64 LCD and a keypad with 6 keys. The interface

languages are Chinese and English. Description of the keys is in Table 3-2.

Table 3-2 Description of keys

Keys Functions

ESC Return key: Press this key to go back to

previous menu

On the first information screen, press

ESC and you can see the software

versionENT Confirmation key: Press this key to go to

next menu or validate the change made to a parameter setting. After a change, only pressing ENT can validate the change

▲ Press ▲ or ▼ to scroll through the menus.

When the editable options are character

strings, pressing ▲ or ▼ can edit values

These four arrow keys can be used to

change the value of a parameter: Press

◄ or ► to move the cursor to the parameter to be changed and press ▲

or ▼ to change the value of a parameter

▼

◄ Press ◄ or ► to move the cursor

►

3.2 Querying StatusThe first information screen is shown in Figure 3-2.

Figure 3-2 First information screen

The first row of the first information screen displays the date and time alternately.


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The second row displays the output voltage of the controller and the load current. 55.2 VDC is output voltage and 4.6A is total load current. The content varies with the actual

values.

The third row displays the controller status, which is „No alarm‟ or „Alarm‟.

The fourth row displays management mode and battery charge status. The managementmode includes manual mode and auto mode. The battery charge status includes FC, BC

and discharge status.

Press ▼ continuously at the first information screen, users can query the information listed in

Table 3-3.

Table 3-3 Query information

SN. Status Content

1 Batt Volt The present battery voltage NA

2. Load Current The present load current NA

3. OperationStatus

„Auto‟ or ‟Manual‟ NA

4 PV State „On‟, „Off‟ or „PWM‟ NA

5 PV OpenVolt The actual array voltage NA

6 PV Current The present array current NA

7 Battery

CurrentThe present battery current NA

8 Battery Temp The actual battery temperature NA

9 Batt Remain

CapThe current remaining battery capacity NA

10 Batt Chrg

TimesThe total battery charge times NA

11 Batt Disc

TimesThe total battery discharge times NA

12 Daily ChrgCap

The total charge capacity of the day NA

13 Daily DiscCap

The total discharge capacity of the day NA

14 PV Input Cap The accumulated array input capacity NA

15 Load OutputCap

Accumulated load output capacity NA

16 Max Batt

Temp

The maximum battery temperature of

the day NA

17 Min Batt

Temp

The minimum battery temperature of

the day NA


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SN. Status Content

18 Max Batt Volt The maximum work voltage of the day NA

19 Min Batt Volt The minimum work voltage of the day NA

20 AUX Chrg

state

The current auxiliary charge state.

Available when auxiliary charge is

enabled, that is, diesel generator, wind

power system or other auxiliaryequipment is used to charge batteries

NA

21 Current Chrg

Time

The current auxiliary charge time.


enabled

NA

22 Total Chrg

Time

The total auxiliary charge time.


enabled

NA

23 Sys Run Time Total system run time NA

40 Comm.State Connected/Disconnected NA

41 GPRS IP 0.0.0.0 – 255.255.255.255 After "GPRS" option is

selected for networking

mode, system willdisplay

42 GPRS State Dialing/Dial Succeed/NotDial/Dial

Fail

After "GPRS" option is

selected for networking

mode, system willdisplay

43 SIM State On Line/Off Line After "GPRS" option is

selected for networkingmode, system will

display

44 GSM Signal NA/7 NA: Haven't registered;

0-7: Means signalquality level

After querying all the information, press ▲ continuously to return to the first informationscreen, or press ENT to enter the main menu screen, as shown in Figure 3-3.

3.3 Querying Active Alarm

1. Press ENT at the information screen to enter the main menu, as shown in Figure 3-3.


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Figure 3-3 Main menu screen: Active alarm highlighted

2. Figure 3-3 illustrates that „Active alarm‟ is selected. Press ENT to enter the active alarm

screen and view the active alarms, as shown in Figure 3-4.

Figure 3-4 Active alarm screen

3. Press ▼ at the active alarm screen, users can query all the active alarms. Press ESC to

return to the main menu.

3.4 Setting Parameters

1. Press ▼at the main menu screen to select the „Settings‟ submenu, as shown in Figure 3-5.

Figure 3-5 Main menu screen: Settings highlighted

2. Press ENT to enter the password screen, as shown in Figure 3-6.

Figure 3-6 Password screen

3. Enter the password: 640275.


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To enter the password, use ▲ or ▼ to modify numbers, and use ◄ or ► to move the cursor.After entering the password, press ENT to confirm the password and enter the Settings screen,

as shown in Figure 3-7.

Figure 3-7 Settings first screen

Press ▼ at the settings first screen, user can set the parameters listed in Table 3-4.

Table 3-4 Setting parametersSN Parameter

nameSetting range Default

1 Batt capacity 50Ah - 5000Ah 300Ah

2 HighVolt

Alarm

BC voltage + 1.5 V DC (min: 58.0 V DC) - 60.0

V DC58.5 V DC

3 LowVolt

Alarm

LLVD+ 0.5 V DC (min: 46.0 V DC) - 50.0 V

DC47.0 V DC

4 LLVD 43 V DC - 48 V DC 46 V DC

5 B-HighTempAlm

35°C - B-OverTemp Prot -10°C (max: 60°C) 50°C

6 B-Temp ProtEN

Yes, No No

7 B-OverTemp

ProtB-HighTemp Alm + 10°C (min: 45°C) - 70°C 60°C

8 Boost Chrg

Voltmin:

54.2 V DC(Float Chrg Volt + 2.2 V DC) – max:57.5 V DC (HighVolt Alarm - 1.5 V DC)

56.4 V DC

9 Float Chrg Volt min: 52.0 V DC (FC to BC Volt +1.5 V DC) –

max: 56.3 V DC (Boost Chrg Volt - 2.2 V DC)53.5 V DC

10 Dry contact NO, NC NO

11 DryCont output

1

Array lost, battery undervoltage, battery loop

open, LLVD, Battery over temperature,controller fault

Controller fault

12 DryCont output

2

Array lost, battery undervoltage, battery loop

open, LLVD, Battery over temperature,controller fault

Battery

undervoltage


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SN Parametername

Setting range Default

13 AUX Charge

ModeVoltage mode, Time mode Voltage mode

14 AUX trigger

time00:00 - 23:30 20:00

15 AUX run time 2H - 18H 10H

16 Temp Comp

SetYes, No Yes

17 Temp Comp

Coeff0 - 100(-mV/°C.S) 72(-mV/°C.S)

18 Address 1 - 254 4

19 Comm

Protocol TelMaster-Slave, Tel Protocol Master-Slave

20 Clear History Yes, No No

21 Reset

parameterYes, No No

22 Date & Time Yes, No No

23 Language Chinese, English English

24 Charge Mode PWM, ON/OFF PWM

42 Comm Method GPRS,IP No

43 Server IP Addr 0.0.0.0 – 255.255.255.255 0.0.0.0

44 BackupServer

IP0.0.0.0 – 255.255.255.255 0.0.0.0

45 Site ID “A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

46 APN Name “A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

47 APN Number “A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

48 User Name “A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

49 User Password “A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

50 SMC Number “0–9”“+” NA

51 NMC Number “0–9”“+” NA

52 OMU IP 0.0.0.0 – 255.255.255.255 0.0.0.0

53 OMU Make IP 0.0.0.0 – 255.255.255.255 0.0.0.0

54 Gateway 0.0.0.0 – 255.255.255.255 0.0.0.0


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3.5 Maintenance1. Press ▼ at the main menu screen to select the „Maintenance‟ submenu, as shown in Figure

3-8.

Figure 3-8 Main menu screen: Maintenance highlighted

2. Press ENT to enter the password screen, as shown in Figure 3-9.

Figure 3-9 Password screen

3. Enter the password: 640275.

To input the password, use ▲ or ▼ to modify numbers, and use ◄ or ► to move the cursor.After the input, press ENT to confirm the password and enter the maintenance screen, as

shown in Figure 3-10.

Figure 3-10 Maintenance screen

4. Press ► to change „Auto‟ into „Manual‟, and press ENT to confirm the setting.

In the manual mode, users can perform the following array controls, as described in Table 3-5.

Table 3-5 Control parameters in manual mode

SN Control parameter Setting range

1 PV Array On, off

2 Load Disconnect, Reconnect


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SN Control parameter Setting range

3 AUX charge On, off

In manual mode, the monitoring board will display as shown in Figure 3-11.

Figure 3-11 Array screen

3.6 Querying History Alarm

1. Press ▼at the main menu screen to select the „History alarm‟ submenu, as shown in Figure

3-12.

Figure 3-12 Main menu screen: History alarm highlighted

2. Press ENT to view the history alarms, as shown in Figure 3-13.

Figure 3-13 History alarm screen

3. Press ▼ at the history alarm screen, users can query all the history alarms. Press ESC toreturn to the main menu.


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4 AppendixTable 4-1 Hazardous substance

Parts Hazardous Substances

Plumbum Hydrargy

rumCadmium Chrome

6+ PBB PBDE

Pb Hg Cd Cr 6+

PBB PBDE

Cabinet/busbar

× O O O O O

Power

distributioncomponents

× O × O O O

PCBA O O O O O O

Hardware × O O O O O

Cable × O O O O O

O: Means the content of the hazardous substances in all the average quality materials of the

part is within the limits specified in SJ/T-11363-2006.

×: Means the content of the hazardous substances in at least one of the average quality

materials of the part is outside the limits specified in SJ/T11363-2006

(The following gives technical reasons for the items marked „×‟) Huawei Technologies Co.,

Ltd. has been committed to the design and manufacturing of environment-friendly products.

It will reduce and eventually eliminate the hazardous substances in the products throughcontinued efforts in research. However, limited by the current technical level, the following

parts still contain hazardous substances due to the lack of reliable substitute or mature

solution:

1. All solders in the products contain plumbum.

2. Copper alloy contains plumbum.

3. Switch contacts contain cadmium and cadmium compound


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Parts Hazardous Substances

About Environment Protection Period: The Environment Protection Period of the product is

marked on the product. Under normal working conditions and normal use of the productsobserving relevant safety precautions, the hazardous substances in the product (excluding

batteries or storage batteries) will not seriously affect the environment, personal safety or property in the environment protection period starting from the manufacturing date

Applicable product: SC4850E-ZYT solar controller


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