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Part # 4526029 (02/22/11)

Page 6

Voltage Supply

The power board voltage supply is wired with the power 
contactor. On starting the generator, voltage is supplied to 
the power board. The transformer is connected directly at the 
entrance of the power supply. The transformer supplies two 
diff erent voltages: 230VAC for the power contactor and the 
fan as well as 23VAC for the low voltage supply. The 23VAC 
are changed on the circuit board C026 to 24VDC.

The following components are supplied with 24VDC:

• 

CPU-circuit board (C018)

• IGBT 

(C026)

• 

Fan relay (C014)

• External 

lamps

Power Board

As already stated, the power board is supplied by the power 
contactor. The mains current is measured by a current 
transformer, directly at the entrance of the 3-phases-rectifi er, 
After the rectifi er there is a direct voltage of 300V. The 
inductance that follows fi lters high frequency (EU) current .

At the following power switch (IGBT) an alternating current 
of approximately 20kHz is generated. This alternating current 
(coil current) is transferred to the induction coil. At the exit 
of the circuit board (C026), the coil current is measured by a 
current transformer. 

Control unit

The control unit is the heart of the generator. This is the CPU-
circuit board (C018) with an integrated microprocessor which 
manages the whole control system.

The following data are measured:

• Coil 

current

• Phases 

current

• 

Performance rate (Poti)

• 

Heat sink temperature (IGBT)

• Coil 

temperature

• Ambient 

temperature

The power switch (IGBT), the fan as well as the display are 
managed in response to these factors.

Display

Two elements are used for this display:

1.  LED-group (LED1 - LED8) on the CPU-Circuit board (C018)

2.  External lamps (24V), maximum 5 pieces

The fi ve external lamps are connected with the fi ve LED’s 
(LED1-LED5). Please distinguish between operation lamps 
and error lamps. The operation lamp shows what kind of 
operation for the respective fi eld:

• 

Lamp out: 

Field is cut out

• Lamp 

fl ashes briefl y 

Pan detection (pan is searched)

• Lamp 

fl ashes an error code: 

Error message (see Error 

Messages table)

• 

Lamp continuously on: 

Power on

The error lamp indicates an error function.

LED1 to LED4 lead to external lamps on the outside, they are 
used as operational lamps or as error lamps, depending on 
the generator type. If an operation lamp or an error lamp is 
shared by two fi elds (for example the surface covering this 
induction type) the display can be overwritten from another 
fi eld. As far as the error code display is concerned, the lower 
fi eld has priority.

LED5 lead to the outside for an external lamp also. This is the 
general error lamp for all fi elds all the time.

In an error, LED6 to LED8 show the error code, but only until 
error code 7. If this happens in some errors, the lower fi eld 
and the lower error code have priority. 

Содержание GI-MO/DU 7000

Страница 1: ...LTD 1177 Kamato Road Mississauga Ontario L4W 1X4 CANADA Phone 905 624 0260 Fax 905 624 5669 Enodis UK LTD 5E Langley Business Centre Station Road Langley SL3 8DS Great Britain Phone 01753 485900 Fax 0...

Страница 2: ...Part 4526029 02 22 11 Page 2...

Страница 3: ...essages 7 SECTION 3 INITIAL OPERATION 8 Function control 8 Display 8 Pan Detection 8 Power 8 Fan 8 SECTION 4 TROUBLE SHOOTING AND REPAIRS 9 Trouble Shooting 9 Error Code 9 Additional Errors 11 Repair...

Страница 4: ...o do service work on an induction generator the operator must have an extended knowledge of the Operating Instructions Knowledge Of Electronic Systems The service and maintenance operator must have kn...

Страница 5: ...CRIPTION Block Schematic coil heatsink CPU M ST1 1 4 ST1 ST1 4 4 4 5 8 ST8 ST2 3 4 ST2 1 2 ST7 ST6 ST5 ST4 1x 2x 3x 4 x c026 c014 c018 c014 filter coil PE L1 L2 L3 208VAC LED 24VDC 300VDC supply 24VDC...

Страница 6: ...e whole control system The following data are measured Coil current Phases current Performance rate Poti Heat sink temperature IGBT Coil temperature Ambient temperature The power switch IGBT the fan a...

Страница 7: ...Temperature heating area coil too high 1 On On 05 Potentiometer defected wiring disconnected On On 06 Temperature inside the unit too high On On On 07 Heating area coil sensor short circuit 2 08 09 1...

Страница 8: ...ter of 12cm 4 75 Only the pan with a diameter of 12cm 4 75 should be detected A coil should not start operation when it is not being used This procedure must be repeated for every coil Power Place an...

Страница 9: ...ower circuit board defective M12 Replace power circuit board L U13 Error on DIP Switch adjustment on CPU M13 Check DIP Switch adjustment L U14 CPU circuit board defective M14 Replace CPU circuit board...

Страница 10: ...oard L 7 S07 Cooking platform Sensing element U70 Sensing element Coil temperature Short circuit M41 Check coil sensing element L 8 S08 9 S09 10 S10 Communication error Serial interface U100 Line brea...

Страница 11: ...perational control L U14 CPU circuit board defective M14 Replace CPU circuit board L U12 Power circuit board defective M12 Replace power circuit board L S22 Empty cooking platform switches on U220 Pan...

Страница 12: ...complete Measure E End user L Supplier Repair Of Problems Measure Activity Comment M10 Compare on another cooking platform and with an induction type pan Check if the pan is appropriate to induction...

Страница 13: ...side the case Admissible ambient temperature 0 C 32 F to appr 70 C 158 F Check point is on the CPU circuit board M100 Check connection cable for serial operational control and CPU circuit board M101 C...

Страница 14: ...nd generator type The following list shows the number of types of the various generators Please note the positions of the power switches from the above table Type DIP Switch setting MO DU 7000 208V 6...

Страница 15: ...Part 4526029 02 22 11 Page 15 SECTION 5 APPENDIX Internal Connections Rectifier Circuit Board C014 View solder side poti for pan detector 9 10 11 12 230V Venti...

Страница 16: ...1 1 field 4 8 field 4 7 field 3 6 heatsink field 3 5 sensor field 3 4 20k field 2 3 field 1 2 field 1 1 field 4 8 field 4 7 field 3 6 current field 3 5 meas field 2 4 signal field 2 3 field 1 2 field...

Страница 17: ...t Board C026 View components side power adjustment field 1 power adjustment field 2 POT1 4 und ST5 optional current measure signal Connection with c018 logic board IGBT pre drive IGBT pre drive Coil c...

Страница 18: ...3 4 7 6 5 8 23VAC outlet logic supply mains supply voltage 208V 230V 400V AC 230VAC outlet contactor ignition 230VAC outlet fan Rectifier And Transistor Module 2 1 3 C2 E1 E2 C1 C2 E1 C1 E2 solder si...

Страница 19: ...Part 4526029 02 22 11 Page 19...

Страница 20: ......

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