Garland GIU 2.5 BI (BH-IN 2500) User Manual

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Figure # 2 – Examples of Incorrect Coil (Spoil) Connections

Coil wires not twisted tightly together or precisely placed.

Coil terminals connected in the incorrect direction.

Coil terminals connected in the incorrect direction.

Coil terminals connected in the incorrect direction.

Part # 4521635 (03/04/08)

Page 11

SECTION 6 – FAULT FINDING

General Information

CAUTION

Do not attempt to open the cooker when it is connected to the power supply. Dangerous

high voltage components will be exposed!

 

The induction cooker may only be serviced by authorized service personnel.

Should the (Ceran Glass) become broken or cracked, turn off the cooker immediately and disconnect the electrical power supply to the unit. Do not touch any parts inside the cooker.

Before replacing a part, check the wiring. Pay close attention to the following faults:

Broken cables

Squeezed cables

Defective isolations of cables

Bad soldering joints

You must not attempt to do any repairs on the circuit boards. It is important, however to do routine maintenance after every repair see Section 5 Maintenance/Service for details.

Error Messages

Order of error message for error code 1-8:

The indicator lamp located directly above the control knob flashes for an interval of 0.6 seconds. The number of the following short flashes have to be counted in order to determine the type of failure. These flashes will inform you about the kind of error or failure, corresponding to the code system below.

Number Of

Significance

 

 

Flashing Signals

(Asterisk Refers To Notes At End

 

Measures To Take

Error Code

Of Chart)

 

 

3

Temperature heat sink***

a.

Heat sink temperature too high – wait until the temperature

-...-...-

 

 

has cooled down under 40°C/104°F

 

 

b.

Check supply of cooling air – perhaps blocked – check

 

 

 

function of fan

 

 

c.

Check temperature of heat sink – replace power circuit.

 

 

 

 

4

Temperature cooking surface***

a.

Temperature of the cooking surface too high

-....-....-

 

b.

Check CU measure coil – index value at 20°C (68°F) – approx. 5

 

 

 

 

 

- Ohms

6

Temperature inside the unit too

a.

Check whether the unit is next to a source of heat ex: fryer,

-......-......-......

high ***

 

broiler etc.

 

 

b.

Check whether hot air is taken in – generator has no air

 

 

 

exhaust system

 

 

 

 

7

Empty cooking sensor*

a.

Check cooking material in the pan

-.......-.......-.......

 

 

 

Page 12

Part # 4521635 (03/04/08)

Number Of

Significance

 

 

Flashing Signals

(Asterisk Refers To Notes At End

 

Measures To Take

Error Code

Of Chart)

 

 

8

Sensor error***

a.

Check Cu coil

-........-........-........

 

b.

Check heat sink sensor

 

 

 

 

c.

Check RTCS-sensor

 

 

d.

Check board sensor

12

Power reduction, heat sink

a.

Turn the power level down

 

temperature **

b.

Check fan

 

 

 

 

 

 

13

Power reduction, temperature of

a.

Take pan off until cooking area has cooled down

 

cooking surface **

b.

Wait until it has cooled down

 

 

 

CU sensor 1

c.

Check coil

 

Warning temperature

 

 

17

CU sensor 1 over

a.

Temperature of the cooking field too high

 

temperature ***

b.

Check CU sensor 1, index value 5 -Ohmsat 25°C (77°F)

 

 

 

 

 

 

18

CU sensor 2 over

a.

Temperature of the cooking field too high

 

temperature ***

b.

Check CU sensor 2, index value 5 -Ohmsat 25°C (77°F)

 

 

19

CU sensor 2, high temperature

a.

Temperature of the cooking field too high

 

warning

b.

Turn the power down

 

 

 

 

 

 

20

Power reduction generator inside

a.

Check for heat sources around the generator and remove

 

temperature **

 

them if any

 

 

b.

Check air circulation

 

 

 

 

21

Heat sink sensor error ***

a.

Contact the factory

 

 

 

 

24

Board temp. sensor error ***

a.

Exchange power unit

25

CU sensor 1 error ***

a.

Check CU sensor 1 for short circuit or discontinuation, index

 

 

 

value 5 Ohms at 25°C (77°F).

 

 

 

 

26

CU Sensor 2 error ***

a

Check CU sensor 2 for short circuit or discontinuation, index

 

 

 

value 5 Ohms at 25°C (77°F)

 

 

 

 

27

Empty cooking detector CU

a.

Check cooking material in the pan

 

sensor 1 *

 

 

28

Empty cooking detector CU

a.

Check cooking material in the pan

 

sensor 2 **

 

 

 

 

 

 

*The induction unit can only be restarted by turning the control knob first to the “OFF” position, and then back to the “ON” position to reset.

**The induction unit continues working

***The induction unit does not heat.

Part # 4521635 (03/04/08)

Page 13

Flow chart to fault finding

Replace

Fuse

Check if fuse is

 

No

 

installed correctly

 

 

 

and power supply

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

OK

 

Check power

 

cord/plug &

 

 

 

 

socket

 

 

 

 

Defective

 

 

 

 

 

 

 

 

 

 

 

 

Contact

 

 

 

Electrician

 

 

 

Unit does not operate

Check

Power Supply

Yes

Connect Unit

No

Yes

Error code in

No

Is there any

IR Mode ?

 

 

Errorcodes ?

 

 

 

Yes

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

Utilize error

 

 

 

 

code and go

 

 

 

 

ahead

 

 

 

 

 

 

 

 

according to list

 

Cooker operates

 

 

 

 

 

 

 

 

 

 

Cooker does

 

 

 

 

 

 

 

 

 

 

not operate

 

 

 

 

 

 

 

 

 

 

Unit works.

 

 

Replace

Continuous test for

 

 

 

 

Power Board

about 10 minutes is

 

 

 

 

 

 

necessary

 

 

 

 

 

 

 

 

 

 

Short circuit

Yes

connection

 

 

Potentiometer?

 

 

 

No

 

 

 

 

 

 

 

Defective

Check LED

 

 

 

OK

 

 

 

 

 

 

 

 

 

Disassemble

 

 

Cooker top

 

 

assembly

 

 

Check fuse

Defective

 

 

T10A

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

Check electric

Error

Potential DC

 

 

Volts

 

 

Check power

Error

Print (board)

 

visually

 

Check wiring

Wired incorrectly

Check potentiometer connection

Replace LED

Replace

Power Board

DefectIve

Check recti er

OK

Check fuse

T1A

OK

Check IGBT

Transistor’s

Correct wiring,

 

Replace

 

Power board

connections

 

 

 

 

Page 14

Part # 4521635 (03/04/08)

SECTION 7 – EXCHANGE OF SPARE PARTS

CAUTION

All spare parts and or accessories, may

only be replaced by authorized service

 

personnel.

 

 

 

 

 

In order to guarantee safety, use only

 

genuine OEM spare parts and accessories

CAUTION

purchased directly from a Garland

authorized part/service distributor. If other

 

 

components are used, no liability will be

 

accepted.

 

 

 

 

CAUTION

The electrical supply must be

disconnected.

 

 

 

To Open The Induction Unit

(Counter Top Models)

Turn the induction unit.

Remove M4x8 screws.

Turn induction unit back in normal position.

Lift cover, turn away at the right side, put it at the side panel.

Remove coil carrier: remove 2 stop nuts at the left.

Remove M4 screws.

Remove screws A1 and A2.

Turn away coil carrier at the left.

To Open The Induction Unit

(Built In Models)

Remove M4 screws on the right side.

Lift cover with the glass.

Remove M4 screws, remove coil carrier.

Remove PT-sensorand coil connections.

SECTION 8 – ADJUSTMENT OF PROCESS PARAMETERS

The induction unit (excluding all WOK-units)with new Cu sensors can be adjusted. This can be done either by means of the short circuit service plug(Poti-LED)part number (94900096) or by PC/Laptop. In addition, the pan detection and the power performance, can be adjusted by the hyperterminal program of the PC/Laptop. Please refer

to Section 9 “IR Interface” for instructions on how to use the hyperterminal program.

Initializing CU Sensors

By The Short Circuit Plug

If only the CU sensor is exchanged, the new CU sensor can be initialized by means of the short circuit service plug (PotiLED). For this, you will not need the PC or Laptop. The pan detection and the performance will not have to be changed.

Procedure of Initialization:

The cooking area must be clear of any items.

Surrounding temperature 25°C (+/- 3°C) or 77°F (+/- 37.4°F).

Disconnect the induction unit from the main power supply.

Part # 4521635 (03/04/08)

Page 15

Place short circuit service plug into the power print board across the (Poti-LED)as showed in the photo below.

Connect the induction unit to the main power supply.

The CU sensors initialize automatically.

After successful initialization, the green LED on the small CPU-print(board) illuminates.

In case the system finds an error during initialization, the red LED will illuminate.

Disconnect the induction unit from the main power supply.

Check the CU sensors at the plug by means of the Ohm meter.

Re-startthe procedure of initialization.

Disconnect the unit from the main power supply.

Remove the short circuit service plug from both the Poti and LED connections.

Initializing The Induction Unit

By PC Or Laptop

The initialization of the CU (RTCS) sensors (excluding all WOK models), as well as adjustments of the pan detection and power performance, can be performed by means of the hyperterminal program. Please refer to Section 9 “IR Interface” for instructions on how to use the hyperterminal program The following adjustments must be done in the hyperterminal program: 2400bps, 8bit, no parity, 1 stop bit, hardware protocol.

IMPORTANT NOTE: When replacing the power board and or induction coil with RTCS sensors, you must reset all parameters.

IMPERATIVE! Pay close attention to whether you receive a feedback signal from the PC or Laptop after every change. This will be your signal that the change has been accepted successfully.

12345 Entry to the mode of adjustment (password)

;Initialize Cu sensor (temperature of the coil ca. 25°C/77°F) excluding WOK.

N

Increase the limit of the mains current (+)

n

Decrease the limit of the mains current (-)

Save the limit of the mains (power) current

T

Increase pan detector (+)

t

Decrease pan detector (-)

=Save pan detector

-?

Leave the mode of adjustment

.

State software version

Change Of The Parameters

1.Connect the RS232 connection cable to the

PC/Laptop and straighten the IR-adapterto the left lower corner of the ceran glass. For counter top cookers, refer to Section (9) figure #3 for correct IR adapter positioning. For all Wok cookers, you will be required to remove the top wok bowl assembly. Place theIR-adapterin the left hand corner directly over the rectangular opening located on the metal sheet with ferrit stripes. Please refer to Section

(9) figure #4 for Wok cooker IR adapter positioning.

2.Start HT2400 (see chapter 9) and turn unit on!

3.Input “12345” and the mode of adjustment will now begin. The following message will appear on the monitor:

IR= On

WELCOME REPAIRMEN

Page 16

Part # 4521635 (03/04/08)

4.Not valid for WOK cookers. The parameters on the CPU can now be changed! The unit temperature and the ambient temperature must amount to 25°C (+/- 4°C) or 77°F (+/- 39°F). Press the key [ ; ]. On the console appears the message “please confirm”. Press the key [ ; ] again. The CU (RTCS) sensor will now be initialized on 25°C (77°F). The following message now appears on the monitor:

save CU sensor : 25°C

5.Set the limit of the (mains) power current. (see mains current parameters in this section):

N increase the limit of the mains current (+)n decrease the limit of the mains current(-)The following message appears on the monitor:

linecurrent limit= .......

6.Save the limit of the (mains) power current with the key [ ]. On the console appears the message “please confirm”. Press the key [] again. The following message appears on the monitor:

save linecurrent limit: .......

7.Set the pan detector (see pan detector, Section 4):

T increase pan detector (+)t decrease pan detector(-)

The following message appears on the monitor:

pan detector limit= .......

8.Save the pan detector with the key [ = ].On the console appears the message “please confirm”. Press the key [ = ] again. The following message appears on the monitor:

save pan detector limit: .......

9.By input [ -? ] the mode of adjustment will be left. The following message appears on the monitor:

see you again!

10The mode for adjustment has a time-outfunction. After a 10 minute period, the mode of adjustment will automatically reset.

The adjustments are now completed and it is not possible to make any other adjustments at this point. If further adjustments are necessary, you will be required to start from the beginning again!

Technical information regarding the induction cooker is also available in real-time,in the clients mode. The following parameters listed below can be read:

Output on the hyperterminal:

------1:KK:68 CU1:22 CU2:22 B:33

F:20080

1: KK:68 CU1:22 CU2:24 B:33 ------

F:20080

1: KK:67 CU1:22 CU2:24 B:33 ------

F:20080

1: KK:67 CU1:22 CU2:24 B:33 ------

F:20080

 

 

Meaning:

Heat Sink

CU Sensor 2 - Outside

Error Message

Temperature

Temperature

of the Coil

 

 

 

 

 

 

 

 

 

 

1:KK:68 CU1:22 CU2:22 B:33 ---

---F:20080

 

 

 

 

 

 

Frequency

 

 

 

 

 

 

Active

CU Sensor

1 - Inside

Board

 

Field

Temperature of the coil

 

Status Message

The internal cooling fan will be activated once the heat sink temperature rises to 70°C (158°F).

Part # 4521635 (03/04/08)

Page 17

Parameters For (Mains) Power Current And Pan Detector

Item Number

Induction Cooker Model

Mains-Power

Pan Detector

(Article No.)

Current

 

 

99560101

BH/BA 1500, 120VAC, 1N, 1,5kW (GIU 1.5)

162

21

99560102

BH/BA 1800, 120VAC, 1N, 1,8kW (GIU 1.8)

187

21

99560103

BH/BA 2500, 208VAC, 1N, 2,5kW (GIU 2.5)

153

23

99560104

BH/BA 2500, 230VAC, 1N, 2,5kW (GIU 2.5)

140

27

99560105

BH/BA 2500, 240VAC, 1N, 2,5kW (GIU 2.5)

192

26

99560106

BH/BA 3000, 208VAC, 1N, 3kW (GIU 3.0)

180

26

99560107

BH/BA 3000, 230VAC, 1N, 3kW (GIU 3.0)

163

28

99560108

BH/BA 3000, 240VAC, 1N, 3kW (GIU 3.0)

 

 

99560109

BH/BA 3500, 208VAC, 1N, 3,5kW (GIU 3.5)

192

26

99560110

BH/BA 3500, 230VAC, 1N, 3,5kW (GIU 3.5)

187

28

99560111

BH/BA 3500, 240VAC, 1N, 3,5kW (GIU 3.5)

 

 

99560112

BH/BA 2300, 230VAC, 1N, 2,3kW (GIU 3.5)

 

 

 

 

 

 

99580001

BH/IN 2500, 208VAC, 1N, 2,5kW (GIU 2.5BI)

 

 

99580002

BH/IN 2500, 230VAC, 1N, 2,5kW (GIU 2.5BI)

 

 

99580003

BH/IN 2500, 240VAC, 1N, 2,5kW (GIU 2.5BI)

 

 

 

 

 

 

99560004

SH/BA 3500, 208VAC, 1N, 3,5kW (GIU 3.5)

192

36

99560005

SH/BA 3500, 230VAC, 1N, 3,5kW (GIU 3.5)

192

35

99560006

SH/BA 3500, 240VAC, 1N, 3,5kW (GIU 3.5)

185

23

99560007

SH/BA 5000, 208VAC, 3N, 5kW (GIU 5.0)

167

21

99560008

SH/BA 5000, 400VAC, 3N, 5kW (GIU 5.0)

 

 

99560009

SH/BA 5000, 440VAC, 3N, 5kW (GIU 5.0)

 

 

 

 

 

 

99580004

SH/IN 3500, 208VAC, 1N, 3,5kW (GIU 3.5BI)

 

 

99580005

SH/IN 3500, 230VAC, 1N, 3,5kW (GIU 3.5BI)

 

 

99580006

SH/IN 3500, 240VAC, 1N, 3,5kW (GIU 3.5BI)

 

 

99580007

SH/IN 5000, 208VAC, 3N, 5kW (GIU 5.0BI)

 

 

99580008

SH/IN 5000, 400VAC, 3N, 5kW (GIU 5.0BI)

 

 

99580009

SH/IN 5000, 440VAC, 3N, 5kW (GIU 5.0BI)

 

 

 

 

 

 

99570001

SH/WO 3500, 208VAC, 1N, 3,5kW (GIWOK 3.5)

192

29

99570002

SH/WO 3500, 230VAC, 1N, 3,5kW (GIWOK 3.5)

192

31

99570003

SH/WO 3500, 240VAC, 1N, 3,5kW (GIWOK 3.5)

185

41

99570004

SH/WO 5000, 208VAC, 3N, 5kW (GIWOK 5.0)

167

23

99570005

SH/WO 5000, 400VAC, 3N, 5kW (GIWOK 5.0)

90

11

99570006

SH/WO 5000, 440VAC, 3N, 5kW (GIWOK 5.0)

78

10

99570008

SH/WO 8000, 400VAC, 3N, 8kW (GIWOK 8.0)

 

 

 

 

 

 

99580016

SH/WO/IN 3500, 208VAC, 1N, 3,5kW (GIWOK 3.5BI)

192

29

99580017

SH/WO/IN 3500, 230VAC, 1N, 3,5kW (GIWOK 3.5BI)

192

20

99580018

SH/WO/IN 3500, 240VAC, 1N, 3,5kW (GIWOK 3.5BI)

185

41

99580019

SH/WO/IN 5000, 208VAC, 3N, 5kW (GIWOK 5.0BI)

167

23

99580020

SH/WO/IN 5000, 400VAC, 3N, 5kW (GIWOK 5.0BI)

 

 

99580021

SH/WO/IN 5000, 440VAC, 3N, 5kW (GIWOK 5.0BI)

 

 

99580025

SH/WO/IN 8000, 400VAC, 3N, 8kW (GIWOK 8.0BI)

141

15

Page 18

Part # 4521635 (03/04/08)

SECTION 9 – IR (INFRARED) INTERFACE

To begin the IR communication, you will need the HyperTerminal software which is available in Microsoft Windows under, Start =>Program=>Accessories => HyperTerminal. Prior to the first use, HyperTerminal should be configured properly. Garland service requires the following settings listed below: 2400bps, 8bit, no parity,

1 stop bit, hardware protocol.

First connect the IR adapter into your PC or laptop computer. Place the IR sensor section onto the ceran glass towards the bottom left hand corner for counter top cookers. Position the IR sensor to the generator. Refer to figure #3 in this section for correct positioning. For all Wok cookers, you will be required to first remove the top wok bowl assembly. Place the IR adapter into the left hand corner, directly over the rectangular opening located on the metal sheet with ferrit stripes. For Wok cookers please refer to figure #4 for IR adapter positioning.

Start HyperTerminal and put the access name, e. g. IR2400.ht.

Select the communication via COM1 (or where your IR adapter has been connected).

Part # 4521635 (03/04/08)

Page 19

Select the following settings: 2400 Bits/sec., 8 Databits, no parity, 1 Stop bit, Hardware protocol.

Setting IR 2400.ht should be saved so that there will be no need to put them again and the connection can be built-upby selecting symbol IR2400.ht.

Figure # 3 – IR Adapter position for counter top (base-line)cookers

For all counter top induction cookers (excluding all WOK models), position the IR adapter tool to the lower left hand corner of the ceran glass as shown in photo.

Page 20

Part # 4521635 (03/04/08)