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Part # 4526029 (02/22/11)

Page 13

Measure

Activity

Comment

M41

• 

Measure the resistance of coil temperature sensor resistor
at 25º Celsius (77º F) resistor will read 1kOhm
at 180º Celsius (356ºF) resistor will read 3,5kOhm

• 

Resistor is higher on a higher temperature (PTC-resistor)

• 

Replace sensor with a value less than 900Ohm

• 

For a test: Short-out the sensor with a 1kOhm fi xed RESISTER

Disconnect sensing element

M50

• 

Measure operational control or main power control switch with 
potentiometer: Potentiometer is 10kOhm and linear

• 

On level “0”: resistor = 0 Ohm

• 

On maximum level resistance= 10kOhm

• 

Resistor is proportional (linear) to swing angle

Disconnect operational control 
(Poti)

M60

• 

Measure temperature inside the case

• 

Admissible ambient temperature: 0°C/32ºF to appr. 70°C/158ºF

• 

Check point is on the CPU-circuit board

M100

• 

Check connection cable for serial operational control and 
CPU-circuit board

M101

• 

Change serial operational control

M200

• 

Check mains cable, perhaps one phase missing

• 

Check the building fuses

M220

• 

Disconnect ST2 on CPU-circuit board and measure resistance 
between brown and blue,
Measured value: 200Ohm < R < 2kOhm

• Replace 

rectifi er circuit board

M240

• 

Use suitable pan material

• 

Test with a pan with a diameter of 24cm (4.75”)

M241

• 

Disconnect mains power supply

• 

Visually inspect : blackened cables, components or strip 
conductors?

• 

Transistor module: measure internal diodes (UF = 0.4V)

• Rectifi er: measure internal diodes (UF = 0.5V)

• 

Control trafo: measure electric voltage

• 

Check power supply CPU-print +24V 
CPU-circuit board ST1/1 and ST1/4 (24V +/- 1V)

M251

• 

Check power switch on operational control

Summary of Contents for GI-MO/DU 7000

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 20: ......

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