ID3 Service Manual

Service manual

METTLER TOLEDO MultiRangeID3s / ID3s-A weighing terminals

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1Service manual 00506566D 08/02

ID3s / ID3s-A weighing terminals

Contents Page

1 Checklists ......................................................................................................................................... 2

1.1 Maintenance checklist ......................................................................................................................... 2

1.2 Service checklist ................................................................................................................................. 3

2 Spare parts ....................................................................................................................................... 4

2.1 Exploded view diagram ID3s with interfaces ........................................................................................... 4

2.2 Exploded view diagram ID3s-A analog connection ................................................................................. 5

2.3 Spare parts list ................................................................................................................................... 6

3 Error displays .................................................................................................................................... 8

3.1 Operating errors .................................................................................................................................. 8

3.2 Error messages .................................................................................................................................. 8

4 Troubleshooting ................................................................................................................................ 9

5 Corrective maintenance ..................................................................................................................... 10

5.1 Opening the terminal ........................................................................................................................... 10

5.2 Checking the voltages ......................................................................................................................... 10

5.3 Removing the main board ................................................................................................................... 10

5.4 Changing the microfuses ..................................................................................................................... 11

5.5 Changing the program ........................................................................................................................ 11

5.6 Changing the main board .................................................................................................................... 11

5.7 Checking and changing the transformer, setting the power supply voltage ................................................. 12

5.8 Changing the keypad .......................................................................................................................... 12

5.9 Changing the analog board ................................................................................................................. 13

5.10 Installing the main board ..................................................................................................................... 13

5.11 Closing the terminal ............................................................................................................................ 13

6 Settings ............................................................................................................................................ 14

6.1 Configuring terminal and weighing platform ........................................................................................... 14

6.2 Preparing the identcard (ID3s only) ...................................................................................................... 14

7 Software compatibility ....................................................................................................................... 15

8 Pin assignment ................................................................................................................................. 15

Contents

2 Service manual 00506566D 08/02


1 Checklists

1.1 Maintenance checklist

1.1.1 Visual inspection

• Check condition of the following scale components:

– Housing– Keypad– Protective hood– Weighing platform– Peripherals

• Check condition of the following cables:

– Power cable– Weighing platform connection cable– Data transfer cable (if used)

• Check for protected position of cables.

1.1.2 Function check

• Press power switch.

• For verified scales, check the ID code (setting on ID card and display in the terminal must match after pressing the "Test key";see installation instructions or operating instructions, Installation section).

• Carry out calibration and display checks with the "Test key".

• Check functions by making entries via the keypad (see operating instructions).

• Check the following settings of the weighing platform (see service manual of the connected weighing platform):

– Calibration– Cornerload– Linearity– Hysteresis

• Check the following plug-in connections for firm seating:

– Power cable– Weighing platform connection cable– Data transfer cable (if used)– Peripheral connection (if installed)

Checklists



1.2 Service checklist

Carry out the following check procedure at the terminal and the weighing platform before troubleshooting and after servicing.

1.2.1 At the terminal

• Check whether an operating error is present.

• Check power and weighing platform connection cables.

• Check calibration via the "Test key".

• Check functions – entries via keypad (see operating instructions).

• Carry out display, keypad and printer tests; for this purpose:

– Unplug terminal.– Unplug weighing platform.– Switch terminal on. PLUG IN appears in the display.– Press SET TO ZERO key until SERVICE MODE appears in the display.– Press Enter key until all display elements illuminate.– Press all keys in sequence from left to right.– If a GA46 printer is connected, a test printout is printed automatically after the last key is pressed.– "END?" appears in the display. The test routine can be repeated by pressing the Tare key.– Press the Enter key to return to weighing mode.

• Check all plug-in connections and program EPROM for firm seating.

• Check connected peripherals.

1.2.2 At the weighing platform

• Check that transport locks of the weighing platform have been released properly and are in the correct position.

• Check supports of the weighing platform.

• Check that the load plate is free and has no contact with the surroundings.

• Check maximum capacity and linearity of the weighing platform.

• Check play of all stops and limits.

• Check that the lever system is free on all sides.

• Check knife edges, bearings and flexible bearings.

Checklists



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Cable connectionsfor example cable A to connector A

Spare parts

2 Spare parts

2.1 Exploded view diagram ID3s with interfaces



2.2 Exploded view diagram ID3s-A analog connection

Spare parts

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Item Designation Part No. ID3s Part No. ID3s-A

1 Cover, compl., with display windowand keypad 00 207 770 00 207 770

2 Keypad 00 206 032 00 206 032

3 Identcard S, short 00 504 468 –

4 Cover seal 00 203 594 00 203 594

5 Power cable- Euro 00 504 247 00 504 247- GB 00 504 248 00 504 248- DK 00 504 249 00 504 249- CH 00 504 250 00 504 250- USA 00 504 251 00 504 251- ZA 00 504 252 00 504 252- AUS, RA 00 504 253 00 504 253

6 Ring seal 00 203 654 00 203 654

7 Leveling foot 00 504 186 00 504 186

8 O-ring 16 x 1.25 00 203 656 –

9 IDNet connector 00 203 598 –

10 Transformer (set to 230 V) 00 203 587 00 203 587

11 Insulating plate 00 203 655 00 203 655

12 Spacer 00 504 470 00 504 470

13 Main board ID1 Plus / ID3s 00 203 578 00 203 578

14 Program ID3s 00 506 652 00 506 652

15 Microfuse slow-blow 315 mA - L 250 V 00 087 431 00 087 431

16 Microfuse slow-blow 1.25 A - L 250 V 00 087 805 00 087 805

17 Microfuse slow-blow 2.5 A - H 250 V 00 089 922 00 089 922

18 Interface 301 CL20 mA 00 506 134 00 506 134Interface 302 RS232 00 506 135 00 506 135Interface 304 RS422/485 00 505 964 00 505 964

19 Interface 303 digital I/O 00 505 714 00 505 714

2.3 Spare parts list

Spare parts


ID3s / ID3s-A weighing terminals Spare parts

Item Designation Part No. ID3s Part No. ID3s-A

20 Analog board (point ADC board) without Eprom – 00 507 000

21 Point cable – 00 507 003

22 Minispreader – 00 204 130

23 Reducing ring – 00 506 860

24 Cable gland, heavy gauge 7 – 00 201 887

25 Sealing sleeve – 00 507 008

26 Grub screw M3 x 6 DIN 913 – 00 205 958

27 Certification set (for updating Identcard bracket) 22 000 386 22 000 386

28 Eprom for analog board – 00 507 274

Set of labels – 00 507 010



Error messages Meaning Testing Component

ERR ID3 Error terminal Check all plug-in connec- EPROM main boardtions and EPROM for firmseating.

ERR I-F Error interface Check attached peripherals EPROM main boardand connections.Check EPROM.

ERR BRU Error weighing platform Check connection cable of Measuring cellmeasuring cell.

CAL ERR Calibration error Perform calibration again. Measuring cell

Clearing error message: Switch terminal off and then on again.

If error is redisplayed: Replace faulty component, see section 5, Corrective maintenance or service manual of attached weighingplatform.

3 Error displays

3.1 Operating errors

Incorrect operations at the terminal and operating conditions of the weighing platform under which a weight determinationis not admissible or not possible are displayed by the terminal in clear text, see operating instructions.

3.2 Error messages

If an operational fault is identified internally by the terminal, the faulty component is shown in the display.

Error messages ID3s / ID3s-A terminals

Error displays



Possible causes

• Power cable not plugged in

• No line voltage• Fuse blown

• Main board faulty

• Weighing platform not attached toterminal

• Connection cable of weighingplatform faulty

• Fuse blown

• Measuring cell faulty

• Ribbon cable for weighingplatform connection on mainboard (item H in exploded viewdiagram) not attached

• Analog board faulty• Point cable faulty

• Transport safeguards of weighingplatform not released

• Mechanical system touchingsomewhere

• Main board faulty• Analog board faulty• Point cable faulty

• Fuse blown

• Main board faulty• Measuring cell faulty

• Analog board faulty• Point cable faulty

• Keypad faulty• Main board faulty

4 Troubleshooting

Fault

Terminal can not be switched on

After terminal switched on,- PLUG IN - appears

After terminal switched on, noweight display

No data transfer to measuring cell

No entry via keypad possible

Fault rectification

• Establish connection to powersupply

• Check power cable• Check microfuses on main board

and replace if necessary (see 5.4)• Change main board (see 5.6)

• Attach weighing platform

• Replace connection cable

• Check microfuses on main boardand replace if necessary (see 5.4)

• Replace measuring cell(see service manual of attachedweighing platform)

• Plug in weighing platform cable

• Change analog board (see 5.9)• Change point cable

• Release transport safeguards(see operating instructions ofattached weighing platform)

• Adjust frame and lever system (seeservice manual of attached weig-hing platform)

• Change main board (see 5.6)• Change analog board (see 5.9)• Change point cable

• Check microfuses on main boardand replace if necessary (see 5.4)

• Change main board (see 5.6)• Replace measuring cell

(see service manual of attachedweighing platform)

• Change analog board (see 5.9)• Change point cable

• Replace keypad (see 5.8)• Change main board (see 5.6)

Troubleshooting

Note

See also operating instructions of ID3s or ID3s-A, section "What if...?".


ID3s / ID3s-A weighing terminalsCorrective maintenance

• Open terminal, see section 5.1.

• Measure voltages at ribbon cable on main board at bot-tom right.

Pin Assignment Value

1, 2 GND3 VDIS 47 VDC4 VNOR 16 VDC5 VCC 5 VDC6 VOPT27 VOPT18 Vheat29 Vheat110 VBA2 3.2 VDC

• If the voltages are not correct, check microfuses andtransformer, see sections 5.4 and 5.7.

10 1STPBRC1

12 VAC

7 VAC

5 Corrective maintenance

Caution

Before opening the instrument:

• Disconnect power plug.

• Unplug attached weighing platform and peripherals.

5.1 Opening the terminal

• Unscrew 2 screws on underside of the cover at the front and lift off cover.

• Unplug keypad cables (J1, J2) at main board.

5.2 Checking the voltages

5.3 Removing the main board


• Unplug weighing platform cable (H) on right of main board next to the display.

• Unscrew heavy gauge screw fitting and push in power cable approx. 5 cm.

• Unscrew 2 screws on main board and lift main board out of guide.

• Unplug interface cable (A).

• Unplug 6 connectors on underside and lift out board.

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5.4 Changing the microfuses

• Remove main board, see section 5.3.

• Check microfuses and replace if necessary.

Fuse ratings

SI 1 slow-blow 2.5 A - H 250 V

SI 2 slow-blow 1.25 A - L 250 V

SI 3 slow-blow 315 mA - L 250 V

SI 5 slow-blow 315 mA - L 250 V

• Reinstall main board, see section 5.10.

SI3

SI5

SI2

SI1

5.5 Changing the program


• Remove old EPROM program from socket using IC extractor.

• Insert new EPROM program in the IC socket paying heed to the marking on the IC and the socket. Carefully bend IC contactsstraight.

• Close terminal, see section 5.11.

5.6 Changing the main board


• Remove 5 spacers; insulating plate, top and bottom are separate parts.

• Break off new main board into top and bottom.

• Mount insulating plate between top and bottom with the 5 spacers.

• Pull off program from old main board socket using IC extractor and insert in the IC socket of the new main board paying heedto the marking on the IC and the socket. Carefully bend IC contacts straight.


CautionThe battery must not be changed as improper handling can lead to an explosion hazard.Disposal of the board with battery only by the manufacturer!

Corrective maintenance



P7

P5

P3

S1S2S7S9S10S8S4S5S6

5.7 Checking and changing the transformer, setting the power supply voltage

Checking the transformer

• Change main board, see section 5.3.

• Check voltages on secondary side.

Pin Rated Voltage at Open-circuitcurrent rated current voltage

S1, S2 0.95 A 12 V ± 5 % 13.8 VS4, S5 0.225 A 3.2 V ± 5 % 4.0 VS5, S6 0.225 A 3.2 V ± 5 % 4.0 VS7, S9 0.13 A 32 V ± 5 % 36.5 VS8, S10 0.17 A 10 V ± 5 % 11.6 V

• If the tolerances are not complied with, change trans-former.

Changing the transformer, setting the power supplyvoltage

• Remove transformer.

• With new transformer, check connections on primary side:

for 230 V connections 3 and 7 (factory setting)

for 115 V connections 3 and 5

• To switch to 115 V, carefully undo and lift off cover,unsolder and resolder connection accordingly.

• Install transformer.


5.8 Changing the keypad


• Pull off affixed foilsheet keypad from display window.

• Remove residual adhesive and dirt from adhesion surface of the display window.

• Pull protective film off new keypad.

• Lead connection cable through the cutout in the display window.

• Affix keypad and smooth down firmly.


S1

S2

S9

S10

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V

115

V

6 5 4 3 2 17

Corrective maintenance


ID3s / ID3s-A weighing terminals Corrective maintenance

2 1


• Disconnect weighing platform cable and point cable.

• Undo nut and screw and lift out analog board.

• Disengage minispreader from old analog board and lockin place on new board.

• Plug in analog board and install with screw and nut.

• Plug in weighing platform cable (1) and point cable (2).


ST9ST4

ST3

ST6

ST5

ST7

• Plug 6 connectors into bottom part of main board.

• Plug weighing platform connector and interface connec-tor, if used, into top part of main board.

• Route power cable outward and tighten heavy gaugescrew fitting.

• Insert main board in the guide and fix with 2 screws.


Pin assignment

ST 3 L1 (brown)ST 4 N (blue)ST 5ST 6 transformerST 7ST 9 shield bonding

5.10 Installing the main board

5.9 Changing the analog board

5.11 Closing the terminal

• Plug in both keypad cables (J1, J2).

• Engage cover at top in screw heads and fasten at front using 2 screws on underside of cover.

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6 Settings

6.1 Configuring terminal and weighing platform

6.1.1 ID3s-A

All other information on the ID3s-A terminal is contained in the operating instructions for the ID3s-A.

6.1.2 ID3s

For the ID3s terminal, the service mode settings are described in the service manual for the service mode of the connectedweighing platform.

Settings / Software compatibility

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Putting into operation after changing the weighingplatform configuration

• Remove identcard.

• Affix appropriate measurement data plate (1).

• Adjust identcode disk (2) so that it matches the displayedidentcode.

• Assemble identcard.

• With certified scales, seal screw (3).

6.2.3 Updating from old identcard (bracket) to newidentcard (socket)

Therefore you need the calibration set 22 000 386.The procedure is described in the installation information forthe identcard.

Service mode operation

Program blocks are selected the same way in service modeas in master mode.

Entering service mode

• Press and hold the Enter key until MASTER appears in the display.

• Press the NO key; SERVICE appears in the display.

• Press the YES key to enter service mode; the CODE prompt appears.

• Enter the following code: YES NO NO YES. The first service mode block, RETURN, appears.

6.2 Preparing the identcard (ID3s only)

6.2.1 New identcard (socket)

In the factory, the identcard is provided with the measurement data plate of the standard configuration of the weighing platform,the identcode shown is "1".For mounting the identcard, see installation information for the identcard.

6.2.2 Old identcard (bracket)

= YES = NO



7 Software compatibility

The ID3s weighing terminal is compatible with all weighing platforms of the F, K, N and D series.

With the ID3s-A terminal: see ID3s-A operating instructions, section "Technical data".

8 Pin assignment

Pin assignment

Front view

AB

C

D

E F G

H

J

K

L

M

ID3s weighing platform connection

A TXD+, transmitting loop of the weighing platform

B VDIS 40 V

C VNOR 13 V

D RXD+, receiving loop of the weighing platform

F RXD–, receiving loop of the weighing platform

G Protective ground

H Signal ground

J TXD–, transmitting loop of the weighing platform

The pin assignment of the ID3s-A is described in the ID3s-A operating instructions.

�� 00506566D

Technische Änderungen vorbehalten © Mettler-Toledo (Albstadt) GmbH 02/08 Printed in Germany 00506566D

Mettler-Toledo (Albstadt) GmbHD-72458 AlbstadtTel. ++49-7431-14 0, Fax ++49-7431-14 232Internet: http://www.mt.com

Documents

ID3 Service Manual