OVC1000 - OVC2000 New Family of Electronic Oven Controls

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OVC1000 - OVC2000

OVC = new family of power boards for electronic OVen Controls, developed in Rothenburg2 levels of complexity (denomination aligned with other product areas) :

OVC1000 for mid-range ovensOVC2000 for multi-function high-range ovens

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OVC1000 - OVC2000

OVC1000 and OVC2000meet the provisions of the RoHS Directivewill replace older generation power boards from the different platforms/factories in the course of the first half of the year 2005 will further serve as basis for new applications

Prisma High in the Century 2 Platform will be modified to meet the provisions of the RoHS Directive, and can be used beyond 2005 in DGT (brands Electrolux, Husqvarna, Juno, Küpperbusch) and FFS (AME = Arthur Martin Electrolux)

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RoHS Directive

Directive 2002/95/EC of the European Parliament and Council on the Restriction of the Use of Certain Hazardous Substances (RoHS), bans lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr 6+), as well as flame retardants containing polybrominated biphenyls (PBBs) or polybrominated diphenyl ethers (PBDEs)The Directive will be effective 1st July 2006Electrolux commited itself to meet the provisions of this Directive by mid-2005 to cater for logistic lead times

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OVC1000 - OVC2000as Replacement

OVC1000 will replace:DGT: SOEC in AEG Electrolux with Rhea UI

Prisma Basic in Century 2 FFS: Prisma Basic in Century 2 AME ZO: SOEC in Access ovens with Kronos 2 / 3 UI

OVC2000 will replace:DGT: Prisma High in AEG Electrolux Perfect 2

Prisma High in Frontline ovens (DKK DGT) SC: Prisma High in steam ovensGBJ: Prisma High in double-cavity ovens

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OVC1000 - OVC2000New Applications

OVC1000DGT / FFS: combination with new variants of

Rhea UI for pyrolytic ovensOVC2000DGT: AEG Electrolux Avantgarde DGT / FFS: combination with new variants of

Rhea UI, supporting meat probeGBJ / DKK / MO: new range of single & double cavity

FS cookers for UK & Scandinavia

Other applications to follow

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GBJ Spennymoor

MO Motala

ROA Satu Mare

SC Schwanden

ZO Forli

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OVC1000 - OVC2000System Definition

OVC1000 & OVC2000 will be pre-programmed by the supplier with the basic softwareIn principle, a single variant of each power board could cover all applicationsIn practice this will apply to OVC1000;for OVC2000, not all applications need the fully-equipped PB; 2 hardware versions will be used by the factories (handling of spares to be defined)Variant definition software will be located on the respective user interfaces, and will programmed in the factories (procedure for spares programming to be defined)

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OVC1000 Inputs

User interface (oven function, temperature, timer signals)PT500 cavity temperature sensorDoor switch (controls cavity light and cooking fan)Telescopic runner switchDoor lock signalNo meat probe for safety reasons, because small loads are controlled by triacs

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OVC1000 Load Control

5 relays (2 x 6 A, 3 x 16 A), of which:4 control the individual heating elements (top & bottom 6 A each, grill & rear/ring 16 A each)1 is the APD (all-pole disconnect) relay, 16 A

5 triacs control small loads:cavity lightcooking fancooling fan low speedcooling fan high speeddoor lock

Contact a7-2, mechanically linked to function selector, can be used to control a turn spit (French market)

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OVC1000: Circuit

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Cooling Fan Speed Control

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Cooling Fan Speed ControlVariants

m2 cooling fanR20 series resistor by-passed during pyrolysis for higher fan

speed

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Cooling Fan Speed ControlVariants

OR: higher fan speed obtained by field tapping !! Wrong connection possible !! • 20 Ω winding can be destroyed if 1 and 2 inverted• low speed during pyro cycle if 2 and 3 inverted overheating

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1

3

105 Ohm 20 Ohm

1 2 3Phase Neutral Neutral

Pyrolyse Nomalbetrieb

Pyrolyse-Betrieb

Normalbetrieb

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Cavity Temperature Sensor Pt500

500600700800900

100011001200130014001500

0 100 200 300 400 500

Temperature (°C)

Res

ista

nce

( Ω)

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Overheat Protection onVentilation Channel

Thermal protector (130°C on pyrolytic models, 90°C on others) disconnects the heating elements in case of overheating

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Door Lock

Door microswitch controls cavity light and fan (some models without pyrolysis have only this switch fitted on an empty door lock housing)

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Door Lock Function

Door lock at 312°C

Unlock voltage signal from power board generated when sensor temperature is below 204°C

For safety reasons, fixed thermostat (110°C) on rear component plate must be closed too for unlock

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Door Lock

2 - Unlock input3 - Phase 230 V4 - Lock input33/34 - Sensing contact 5 V, 100 mA

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OVC1000: Layout

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OVC1000Small loads (rast 2,5 pro):- oven light- cooking fan- cooling fan 1. speed- cooling fan 2. SpeedDoorlook system (rast 2,5 pro):

- control- feedback door closed

heaters (Rast 5):- Grill element- Top element- Bottom element- Ring element

analog input (Rast 2,5):for future applications

Power supply (Rast 5):- L/N/PE 230V/50Hz

All pole disconnetion (Rast 5):factory programming:

User interface (Rast 2,5):- Rhea- Kronos 2- Kronos 3

digital input (Rast 2,5):- door switch for light- telescopic runners detection

PT500 (Rast 2,5):

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OVC1000 + Rhea UI

Functions

Brands & Variants

temperature proposalheating indicationpyrolytic cleaning controlfull timer functionspush button for additional function (e.g. FHU or actual temperature)

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OVC1000 + Kronos 2

Functions

Variants

temperature proposalheating indicationheating mode indicationsteam controlmicrowave controlpyrolytic cleaning controlfull timer functionsFHU (fast heat-up)programs / memory

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OVC1000 + Kronos 3

Functions

Brands & Variants

2 displays (2-colour & red)text display (selectable language)temperature proposalheating indicationheating mode indicationsteam controlmicrowave controlpyrolytic cleaning controlfull timer functionsFHU, actual temperature indicationprograms / memory

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OVC2000 Inputs

User interface via MACS (oven function, temperature, timer signals, cooking programme, meat probe temperature)PT500 cavity temperature sensor(s*)Meat probe(s*)Door switch(es*)Telescopic runner switch(es*)Door lock signal(s*)*N.B. OVC2000 supports double-cavity ovensOn built-under ovens also MACS communication hob control power board (HOC2000)

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OVC2000 Load ControlHeating Elements

All loads controlled by relays (meat probe safety) Fully-equipped configuration with 17 relays5 relays for main cavity:

2 x 6 A for top & bottom heating elements2 x 16 A for grill & rear heating elements1 x 16 A APD relay

4 relays for second cavity:2 x 6 A for top & bottom heating elements(alternatively for steam drawer elements)1 x 16 A for grill heating element1 x 16 A APD relay

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OVC2000 Load Control

A maximum of 8 x 6 A relays control small loads:2 relays for door locks6 relays for different combinations of loads (see diagram):

cavity light(s)cooking fan(s)cooling fan low speedcooling fan high speedturn spit

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Circuit OVC2000

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Circuit OVC2000Small Load Configuration Variants

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Cooling Fan Speed Controlwith Single Relay

m2 cooling fanR20 series resistor by-passed during pyrolysis by fixed NO

thermostat (90°C)

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Layout OVC2000

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OVC2000Fully-equipped Version

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OVC2000 + Rhea UI

Functions

Brands & Variants

temperature proposalheating indicationpyrolitic cleaning controlfull timer functionspush button for additional function (e.g. FHU or actual temperature)meat probe

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OVC1000 - OVC2000Alarm Management

Alarms are shown directly on the user interface (no alarm memory)There are minor differences between alarm management on OVC1000 vs. OVC2000But it will be the same on all user interfaces (Kronos, Rhea, Perfect 2, or Avantgarde), therefore the alarms are shown here, and not in the individual product platformsNo protection or alarm against wrong connection to 400 V

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OVC1000 Alarms

F1 fault in door-lock sensing circuitF2 door can’t be locked or unlocked

(first check if door closed, then reset mains supply)F3 software error on UI EEPROMF4 cavity temperature sensor outside of working range

(alarm will be shown after a 5 sec delay)F5 cavity temperature too high for more than 12.5 sec

(400°C normal heating mode, 530°C pyrolysis)

F8 communication error between PB and UIF9 incompatibility between PB and UI F10 faulty triac on OVC1000

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OVC2000 Alarms

F1 fault in door-lock sensing circuitF2 door can’t be locked or unlocked

(first check if door closed, then reset mains supply)F3 software error on UI EEPROMF4 cavity temperature sensor outside of working range

(cooling fan runs for 20 min before alarm is shown)F5 cavity temperature too high for more than 12.5 sec

(400°C normal heating mode, 530°C pyrolysis)F6 NTC sensor on PB outside of working range

(cooling fan runs for 20 min before alarm is shown)

F8 communication error between PB and UIF9 incompatibility between PB and UI

F11 meat probe short circuit (or not correctly plugged)