Sartorius Signum 1, Signum 2, Signum 3, SIWR, SIWA Service Manual

WSI5007-e12036

Service Manual

Sartorius Signum®1 | Signum®2 | Signum®3

Models SIWR | SIWA | SIWS

Signum Series Complete Scales

2

Service Manual Signum

Contents

Introductory Remarks 4

Notes on Using this Manual 4
Printing the Manual 4
Symbols 5
Safety Instructions 6
Model Designation 6
Model Codes: 7
Resolutions: 7
Models with Special Weighing Systems 8
Design 1 - 3 8
Design 4 - 6 9
Additional Tools / Programs, etc. 10
Accompanying Literature 10

Description of the Equipment 11

Display Units 11
Flat Screen Display Unit 11
Tall Display Unit 11
Position Description 12
Overview of the Signum Series Scale Featuring
Strain Gauge Technology 13
Overview of the Signum Series Scale Featuring
Electromagnetic Force Compensation 14

Activating the Service Mode 15

Activating the Service Mode 15
Additional Menus in the Service Mode 17
In the Text Menu (Setup) 17
Calibration/Adjustment Functions 19

1-9-1External Calibration/Adjustment with
Default Weights 19
1-9-3External Calibration/Adjustment with
User-Defined Weights 20
1-9-4Calibration/Adjustment with an
Internal Weight 2) 22
1-9-6External Linearization with Default
Weights 23
1-9-7External Linearization with
User-Defined Weights 26
1-9-8Setting the Preload 29
1-9-9Clearing the Preload 30
1-18 Entering Calibration/Linearization

Weights 32

1-18-1 External User-Defined Calibration Weight (ser­vice mode not required) 32
1-18-2 Entering the 1st Linearization
Weight 33

3

Service Manual Signum

Replacing the Display Unit 34

Opening the Display Unit 34
Closing the Display Unit 34
Replacing the Front Panel 35
Replacing the Cable 35
Replacing the Display PCB 36

Replacing Components 37

Repairing the Scale 37

Opening a Scale Featuring Strain Gauge
Technology 37
Opening a Scale Featuring Electromagnetic
Force Compensation 38
Closing the Scale 39
Replacing the Power PCB 40
Replacing the Data Output PCB 41
Replacing the Main PCB 42
Replacing the System PCB 43
Replacing Comonents of SIWAEDG 44

Optional Data Output Ports/Interfaces 46

Installation of the Profibus Module 46
Data Output Plate with IP44 Protection 47
Data Output Plate with IP65 Protection 48

COM 1 Port SIWAEDG 49

Error Codes 50

Additional Tools / Programs, etc. 52
Block Diagram 53

Working with the Service Software 54

Service Switches 54
Function of the Service Switches 54
Menu Access Switch 55
Boot Switch (Flash Switch) 57
SBI/XBPI 57
Close Function 57

Setting the XBPI-232 Protocol 57
Calibration/Adjustment Data for the SIWR 58
Calibration/Adjustment Data for the SIWR 59
Calibration/Adjustment Data for the SIWA 60
Calibration/Adjustment Data for the SIWS 61

4

Service Manual Signum

Introductory Remarks

Introductory Remarks

Notes on Using this Manual

This manual contains information on maintenance, calibration and adjustment of
Signum series scales, as well as on error messages.

If you have any comments or require more detailed information, please write to us
at: [e-mail].

Printing the Manual

To save paper, we recommend configuring the printer settings in the Adobe Acrobat
program as follows:
File | Print | Properties | Layout: Pages per Sheet: 2

5

Service Manual Signum

Introductory Remark

!

Symbols

The following symbols are used in this manual:

Warning

Indicates safety instructions. Please make sure to observe these
instructions; otherwise, physical injury or material damage may
result.

Note

The light bulb symbol indicates important information that will help
prevent errors, as well as other useful tips.

6

Service Manual Signum

Introductory Remarks

Safety Instructions

The Signum series scale is in conformance with the applicable directives and
standards. Use of the scale for other than its intended purpose, however, can result
in physical injury or material damage.

Repairs must be performed by service technicians who have been trained at the
factory.

Warning

Electric shocks can cause serious burns and life-threatening injuries.
To avoid electric shock, always disconnect the power cord from

the wall outlet (mains supply) before beginning repair work or
replacement of components. When the scale housing is open, always
use an isolating transformer or a ground fault circuit interrupter.

Make sure no voltage is present in the scale before connecting or disconnecting any
cables to or from it. Otherwise, assemblies or other components may be destroyed.
1 Press e to switch off the scale.
2 Unplug the power cord.
3 Carry out maintenance/repair work.

For further information, please refer to the operating instructions
(WSI6007-e07074.)

!

7

Service Manual Signum

Introductory Remarks

Model Designation

Model Codes:

SIW – Series name
R / A / S – Featured technology (R=Regular; A=Advanced with strain
gauge technology; S=Supreme with electromagnetic force compensation)
1,2,3 – Application level (display unit); later a 4

th

display unit will be available in addition

X – Indicates explosion-protected (N/A at the initial stage, since it is not available in an explosion-

protected version at this stage)

P – Material (at the initial stage only painted, but will also be available in stainless steel at a later time)

Resolutions:

-R 6,000d< 15,000d

-L 15,.000d

-I 30,.000d

-N multirange n*3,000d

-M multiintervall n*3,000d

-S 50,000d <S<100,000 d

-H >100,000d

-D Dual range high resolution >50,000

-P Polyrange high resolution >50,000

-K Dual range low resolution <= 50,000

-T Polyrange low resolution <=50,000
It is possible to select from various groups of options

(e.g., interfaces, rechargeable battery pack, 2

nd

A/D converter, other IP versions, etc.)

8

Service Manual Signum

Introductory Remarks

Models with Special Weighing Systems

Model Design 1 System

Regular weighing system:
Strain gauge technology (to the right)
Without built-in motorized calibration
weight Nominal load 20kg | 50kg | 100kg

Design 2

Advanced weighing system:
Strain gauge technology (to the right)
Without built-in motorized calibration
weight Nominal load 20kg | 50kg | 100kg

SIWAEDG

weight Nominal load 16kg | 35kg | 65kg

Design 3

Supreme weighing system:
Narrow forked-lever system (to the right)
With built-in motorized calibration weight
Nominal load 20kg

AUT22923a.JPG

PW_Sys_DMS_01.eps

AUT22925a.JPG

PW_Sys_GHS_03.eps

9

Service Manual Signum

Introductory Remarks

PW_Sys_GHS_04.eps

PW_Sys_DMS_05.eps

PW_Sys_DMS_06.eps

AUT22923a.JPG

Model Design 4 System

Supreme weighing system:
Narrow forked-lever system (to the right)
With built-in motorized calibration weight
Nominal load 40kg

Design 5

Regular weighing system:
Strain gauge technology (to the right)
Without built-in motorized calibration
weight PW15-EX | Nominal load up to 30kg

Design 6

Regular weighing system:
Strain gauge technology (to the right)
Without built-in motorized calibration weight
PW10-EX | Nominal load up to 100kg

10

Service Manual Signum

Introductory Remarks

Additional Tools / Programs, etc.

Designation Order No.

- Isolating transformer

- RS232 connection cable (25-pin / 25-pin) 7357312

- RS232 connection cable (25-pin / 9-pin) 7357314

- Torx screwdriver set 10/15/20

Accompanying Literature

Designation Order No.

Operating instructions WSI6007-e07074
Service manuals, spare parts lists, etc. can be downloaded from the Internet at

http://iss.sartoserver.de. Registration is required: please contact Malte.Pramann@
Sartorius.com for details.http://iss.sartoserver.de hinterlegt.

11

Service Manual Signum

Description of the Equipment

PW_Bal01.cdr

TitSig.cdr

Kop_in.jpg

Kop_fl_St.jpg

Description of the Equipment

Display Units

Flat Screen Display Unit

These are available with various screen types.
The display unit can be hung on the load cell
or secured to the scale using a stand or
column.

Tall Display Unit

This is available as an option with an A/D
converter or a rechargeable battery pack. Position Description

12

Service Manual Signum

Description of the Equipment

PW_Folie01.epsPW_Folie02.epsPW_Folie03.eps

c Clear Function

e On/off

(in standby mode,

Off is displayed).

Signum 2 and 3 only:
n If a second weighing platform is connec-

ted, this key toggles the display between
the two readouts.

( – Zero the scale

– Cancel calibration/adjustment

) – Tare the scale
k Toggle between 1st and 2nd weight unit,

or gross and net values, or normal and
10-fold higher resolution, depending on
operating menu settings (depends on
model)

J Start calibration or adjustment
p – To print: press briefly.

– To print GMP footer:
Press and hold (> 2 seconds)

Signum 3 only:
I To toggle the scale to Info mode

Signum 3 only:
d Identifiertaste zur Eingabe von Bediener-

kennungen

Signum 2 and 3 only:

K Toggle unit between normal and

10-fold higher resolution

Signum 2 and 3 only:
L Netto-Bruttowert-Taste

Nur Signum 2 und 3
w Toggle between display modes within an

application program

Signum 2 and 3 only:
r Lets you modify reference values

Signum 2 and 3 only:
O Saves a value or starts an application

program.

Signum 3 only:
R Saves a value in product data memory

Signum 3 only:
D Toggle applications

Signum 2 and 3 only:
I Press to view either application data or

manual tare values, depending on the
key pressed subsequently (e.g., ))

Signum 2 and 3 only:
c – Quit an application or delete an input

character

13

Service Manual Signum

Description of the Equipment

The Sartorius Signum series advanced scale (SIWA) with a mechatronic weighing system

Overview of the Signum Series Scale Featuring Strain Gauge Technology

A Power supply
B Data output (various interfaces

can be installed as optional

equipment)
C Main PCB
D Strain gauge technology

– system PCB
E Various versions of the strain

gauge system
F Standard housing
G Without built-in motorized

internal calibration weight

* This cable is suitable only for the

Ethernet and Profibus options

AUT24188.JPG

A

B

C

AUT24197.JPG

System cable Cable to main PCB

D

Cable to power supply Data output cable * Cable to the system PCB
Standard data output PCB

G

E

F

A

C

B

Cable to Standard data output PCB

14

Service Manual Signum

Description of the Equipment

The Sartorius Signum Series Supreme Scale (SIWS) with a Monolithic Weighing System
Overview of the Signum Series Scale (Featuring Electromagnetic Force Compensation)

A Power supply
B Data output (various interfaces

can be installed as optional

equipment)
C Main PCB
D Electromagnetic force

compensation system PCB
E Various versions of the

electromagnetic force

compensation system
F Standard housing
G Built-in motorized internal

calibration weight

AUT24252.JPG

AUT24188a.JPG

A

B

C

D

G

E

F

A

C

B

Cable to power supply Data output cable Cable to system PCB
Optional RS232 or RS485/422 data interfaces; 4-20mA/0-10V or digital I/O

System cable Cable to main PCB

15

Service Manual Signum

Description of the Equipment

Activating the Service Mode

Important note: When performing maintenance on an existing system,
you must access the service mode for linearization, to set or clear a
preload, or to enter the date of service.

– Switch the Signum scale off (press the e).
– Switch the Signum scale back on (press the e). While all segments are

displayed, briefly press the ) key.

APPL is displayed.

– Using the k key, scroll to SETUP.

– Press the ) key. WP-1 is displayed.

– Using the k key, scroll to CODE.

disp_wp-1_d.eps

disp_8888_d.eps

disp_appl_d.eps

disp_setup_d.eps

disp_wp-1_d.eps

16

Service Manual Signum

Working with the Service Mode

– Press the ) key. A blinking cursor is displayed.

– Using the k key, select 2 and press the ) key to confirm. When the cursor

jumps to the second field, enter the next number. Follow these steps to enter
the service code 202122.

Important note:

If you enter a number incorrectly, use the ( key to select the field
you wish to change. Next, press the ) key repeatedly until the cursor
scrolls to the 6

th

place (line 2 blinks).

– Once you have entered the last number, press the ) and ( keys (in this

order) to activate the service mode.

An „S“ in the upper right-hand corner indicates that the service mode is active.
If you wish to exit the service code entry mode, continue pressing the ( key until

CODE reappears on the display.
Please note: The only way to deactivate the service mode is to switch the scale

off and then on again.

Important note: Once service code 202122 has been input, any customer codes that have already

been entered can only be viewed. You can delete or change a customer code
only after entering the general access code 40414243.

disp_202122_d.eps

disp_blin_d.eps

disp_code_s_d.eps

!

17

Service Manual Signum

Working with the Service Mode

Additional Menus in the Service Mode

In the Text Menu (Setup)

In consecutive order following the menu items » DATE « and Code » 202122 «
– Service date » S-DATE «
– Memory number » MEM-NO «
– Service technician can enter a minimum load here » SQMIN-S «
– This displays or prints the minimum load » SQMIN «

In the number menu: The setup menu is model-dependent for WP1 (WP-1) and the interfaces COM1 (COM1)

and UniCOM (UNICOM). It has been expanded to allow the following possible settings
for configuring weighing platforms WP-1(WP-1) and WP2(WP-2):

1-9 Calibration/adjustment functions:

1-9-1: Ext. calibration/adjustment with a default weight (service mode not

required)

1-9-3: Ext. calibration/adjustment with a user-defined weight (service mode not

required)
1-9-4: Int. calibration/adjustment (service mode not required)
1-9-6:

1)

Internal linearization (only for WP-2 on COM1 and UniCOM)
1-9-7:1) External linearization with user-defined weights
1-9-8: Set preload (service mode not required)
1-9-9: Delete preload (service mode not required)
1-9-10: Key blocked (service mode not required)
1-9-18:1) Determine internal weight

1)

Only accessible in the service mode

18

Service Manual Signum

Working with the Service Mode

Important note:

Once the necessary settings have been configured, set the menu to the
particular calibration/adjustment function that the customer wishes to
perform.

1-10 Calibration/adjustment sequence

1-10-1: Calibration with automatic adjustment
1-10-2:

3)

Calibration with manual adjustment

1-18 Entry of calibration and linearization weights

1-18-1: Ext. calibration weight of the user ((special value) entry, e.g.:10,000kg)
1-18-2:

1)

Entry of linearization weight 1

1-18-3:

1)

Entry of linearization weight 2

1-18-4:

1)

Entry of linearization weight 3

1-18-5:

1)

Entry of linearization weight 4

1)

Only accessible in the service mode

9-1 Factory settings / menu reset

9-1-1: Restore
9-1-2: Do not restore

19

Service Manual Signum

Working with the Service Mode

Calibration/Adjustment Functions

Important note:

When using a verified weighing platform, open the cover on the back,
left-hand side of the indicator housing. Then slide the menu access
switch to the right (»free« setting).

– Activate the service mode (see page 15).

1-9-1 External Calibration/Adjustment with Default Weights

– Select weighing platform »WP-1«.
– Press the ) key to access the number menu.

– Select menu »1-9-1« (External calibration/adjustment with default weight) by

pressing the ) k ) key repeatedly and then pressing the ) key briefly
to confirm.

If this menu has already been selected, switch the indicator off and then on

again to exit the service mode.

display_wps1_serv.eps

display_serv_01.eps

menu_191.eps

20

Service Manual Signum

Working with the Service Mode

– After taring or zeroing the display of the scale, press and hold the J key until

»C.EXT.DEF« is displayed.

Press the J key to continue the calibration/adjustment routine.
– After approx. 2 seconds, the required calibration weight is shown in the display.

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration
procedure) is displayed.

– To interrupt the calibration/adjustment procedure, press the ( key.

– Press the J key to calibrate/adjust the scale and display the value if menu »1-

10-2« has been selected.

1-9-3 External Calibration/Adjustment with User-Defined Weights

– Select weighing platform »WP-1«.

– Press the ) key to access the number menu.

3)

Only displayed if menu code »1-10-2 (Calibration with manual adjustment) has been selected

cal_def.eps

Display_WP1_Serv.eps

Display_Serv_01.eps

-100000kg.eps

+0.0010.eps

+100000kg.eps

3)

21

Service Manual Signum

Working with the Service Mode

– Press the ) and k ) keys repeatedly to select menu code »1-9-3« (Ex-

ternal calibration/adjustment with a user-defined weight) and confirm by briefly
pressing the ) key.

– You can jump to the first columns in the number menu by pressing the ( key.
– To store the selected menu, press and hold the ) key.

– After taring or zeroing the display of the scale, press and hold the J key until

»C.EXT.USE« is displayed.

Press the J key to continue the calibration/adjustment routine.

– After approx. 2 seconds, the required calibration weight (user-defined weight) is

shown in the display.

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration)
procedure is displayed.

– To interrupt the calibration/adjustment procedure, press the ( key.

– Press the J key to calibrate/adjust the scale.

3)

Only displayed if menu code »1-10-2 (Calibration with manual adjustment) has been selected

cal_use.eps

menu_193.eps

-100000kg.eps

+0.0010.eps

+100000kg.eps

22

Service Manual Signum

Working with the Service Mode

1-9-4 Calibration/Adjustment with an Internal Weight

2)

– Select weighing platform »WP1«.

– Press the ) key to access the number menu.

– Press the ) and k ) keys repeatedly to select menu code »1-9-4«

(Internal calibration/adjustment

2)

). Then briefly press the ( ) key to

confirm.

– You can jump to the first columns in the number menu by pressing the ( key.
– To store the selected menu, press and hold the ) key.
– After taring or zeroing the display of the scale, press and hold the J key until

»C.INTERN« is displayed.

Press the J key to continue the calibration/adjustment routine.
– The motorized, internal calibration weight is placed on the scale and then

removed.

– After approx. 2 seconds, the difference in the current calibration value is

displayed.

– Press the J key to store the current calibration weight. Afterwards, the scale

returns to the normal weighing mode.

2)

Only performed on scales with an internal calibration weight.

3)

Only displayed if menu code »1-10-2 (Calibration with manual adjustment) has been selected

cal_def.eps

Display_WP1_Serv.eps

Menu-194.eps

cal_ci.eps

+00015.eps

+00000.eps

3)

23

Service Manual Signum

Working with the Service Mode

1-9-6 External Linearization with Default Weights

– Activate the service mode (see page 15).
– Select weighing platform »WP1«.

– Press the ) key to access the number menu.

– Press the ) and k)) keys repeatedly to select menu code »1-9-6« (Ext.

Linearization with Default Weight). Then briefly press the ) key to confirm.

– Press and hold the ) key to store the selected menu and return the scale to

the weighing mode.

If this menu has already been selected, switch the indicator off and on again to

exit the service mode.

– After taring or zeroing the display of the scale, press the J key until »L.EXT.

DEF« is displayed.

display_serv_01.eps

menu_196.eps

display_wps1_serv.eps

lin-ext-def.eps

24

Service Manual Signum

Working with the Service Mode

– After approx. 2 seconds, the 1st required linearization weight (defined weight)

is displayed. You can enter the weights for linearization via menus »1-18-2«
through »1-18-5«2).

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration)
procedure is displayed.

– Press the ( key if you need to interrupt the calibration/adjustment procedure.
– Press the J key to store the 1st linearization weight. Next, the 2nd required

weight is displayed.

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration)
procedure is displayed.

– Press the J key to store the 2

nd

linearization weight. Now the 3rd required

weight is displayed.

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration)
procedure is displayed.

*)

Weights displayed depend on the scale model

2)

Only possible in the service mode

3)

Only displayed if menu code »1-10-2« (Calibration with manual adjustment) has been selected.

2.5kg.eps

display_serv_02.eps

5kg.eps

display_serv_03.eps

7.5kg.eps

display_serv_04.eps

*

*

*

3)

3)

3)

25

Service Manual Signum

Working with the Service Mode

– Press the J key to store the 3rd linearization weight. The 4th required weight is

now displayed.

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration)
procedure is displayed

– Press the J key to store the 4th linearization weight. The scale now prompts a

zero point (remove all weights from the scale).

– Once the zero point is stored, the scale will automatically return to the weighing

mode.

*)

Weights displayed depend on the scale model.

3)

Only displayed if menu code »1-10-2« (Calibration with manual adjustment) has been selected.

10kg.eps

display_serv_06.eps

display_serv_04.eps

0kg.eps

*

*

3)

26

Service Manual Signum

Working with the Service Mode

1-9-7 External Linearization with User-Defined Weights

– Activate the service mode (see page 15).
– Select weighing platform »WP1«.

– Press the ) key to access the number menu.

– Press the ) and k ) keys repeatedly to select menu code »1-9-7« (Ext.

linearization with user-defined weight) and confirm by briefly pressing the (
key.

– To store the selected menu, press and hold the ) key. The scale now returns to

the weighing mode.

If this menu has already been selected, switch the indicator off and on again to

exit the service mode.

– After taring or zeroing the display of the scale, press the J key until »L.EXT.

USE« is displayed.

display_serv_01.eps

menu_197.eps

display_wps1_serv.eps

cal_ext_use.eps

27

Service Manual Signum

Working with the Service Mode

– After approx. 2 seconds, the 1st required linearization weight (user-defined

weight) is displayed. You can enter the linearization weights via menus »1-18-2«
through »1-18-5«2.

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration)
procedure is displayed

– Press the ( key if you need to interrupt the calibration/adjustment procedure.
– Press the J key to store the 1st linearization weight. Next, the 2nd required

weight is displayed.

– After a brief pause, the difference between the current value and the value from

the last adjustment (calibration) procedure is displayed

– Press the J key to store the 2nd linearization weight. Now the 3rd required

weight is displayed.

– After a brief pause, the difference between the current value and the value from

the last adjustment (calibration) procedure is displayed.

*)

Weights displayed depend on the scale model

3)

Only displayed if menu code »1-10-2« (Calibration with manual adjustment) has been selected.

– Press the J key to store the 3rd linearization weight. The 4th required weight is

2.5kg.eps

display_serv_02.eps

5kg.eps

display_serv_03.eps

7.5kg.eps

display_serv_04.eps

*

*

*

3)

3)

3)

28

Service Manual Signum

Working with the Service Mode

now displayed.

– Place the required weight on the scale. After a brief pause, the difference

between the current value and the value from the last adjustment (calibration)
procedure is displayed

– Press the J key to store the 4th linearization weight. The scale now prompts a

zero point (remove all weights from the scale).

– Once the zero point is stored, the scale will automatically return to the weighing

mode.

*)

Weights displayed depend on the scale model.

3)

Only displayed if menu code »1-10-2« (Calibration with manual adjustment) has been selected.

1-9-8 Setting the Preload

10kg.eps

display_serv_06.eps

display_serv_04.eps

0kg.eps

*

*

3)

29

Service Manual Signum

Working with the Service Mode

Important note:

Remove the cover on the back, left-hand side of the indicator housing
and slide the menu access switch to the right (»free« setting, see page 19
for more information).

– Activate the service mode (see page 15).

– Select weighing platform »WP1«.

– Press the ) key to access the number menu.

– Select menu »1-9-8« (Setting the preload) by pressing the k ) key repeatedly

and then pressing the ( key briefly to confirm.

– Press and hold the ) key to store the selected menu and return the scale to

the weighing mode.

– Tare the scale (by pressing the ) key) or zero the display (by pressing the (

key).

After the scale has been tared, „NET“ might remain in the display.

– Place the preload weight on the scale.

– Press the J key until »SET Vor« appears in the display.

display_serv_01.eps

menu_198.eps

display_wps1_serv.eps

0kg.eps

vorl1.eps

30

Service Manual Signum

Working with the Service Mode

– Press the ) key. After a brief pause, the Signum indicator returns to the

weighing mode.

1-9-9 Clearing the Preload
Important note:

Remove the cover on the back, left-hand side of the indicator housing
and slide the menu access switch to the right (»free« setting, see page 19
for more information).

– Activate the service mode (see page 15).

– Select the weighing platform »WP!«.

– Press the ) key to access the number menu.

– Select menu »1-9 -9 « (Clear preload) by pressing the k ) key repeatedly

and then pressing the ) key briefly to confirm.

– Press and hold the ) key to store the selected menu and return the scale to

the weighing mode.

– Remove the preload weight from the scale. A weight with a preceding „minus“

sign is displayed (e.g., -0.335kg).

0kg.eps

display_serv_01.eps

display_wps1_serv.eps

menu_199.eps

set_vor.eps

31

Service Manual Signum

Working with the Service Mode

– Press the J key until »CLr Vor« is displayed.

– Press the ) key. The preload is cleared, and after a brief pause, the scale

returns to the weighing mode.

Clr_vor.eps

0kg.eps

vorl4.eps

32

Service Manual Signum

Working with the Service Mode

1-18 Entering Calibration/Linearization Weights

1-18-1 External User-Defined Calibration Weight (service mode not required)

– Activate the service mode (see page 15).
– Select weighing platform »WP1«.

– Press the ) key to access the number menu.

– Select menu code »1-18-1 « (Ext. user – defined calibration weight) by pressing

the ) key and the k ) key repeatedly).

– Access the input mode for the user-defined weight by briefly pressing the )

key. The first number blinks.

– Enter the user-defined weight (10,000 kg in this example); press the following

keys in order: ) k ) p ) ) ) k ). Now the last number
entered blinks.

– Press the ) key again to store the user-defined weight.

display_wps1_serv.eps

display_serv_01.eps

menu_1181.eps

user1.eps

user2.eps

menu_1181.eps

33

Service Manual Signum

Working with the Service Mode

1-18-2 Entering the 1st Linearization Weight

– Scroll to menu code »1-18-2 « (by pressing the k key).

Important note: The service mode must be active.

– Access the input mode for the 1

st

linearization weight by briefly pressing the )

key. The first number blinks.

– Enter the 1st linearization weight (2,500 kg in this example); press the following

keys in the order indicated: 3*k ) p ) 6*k ) k ) k. Now
the last number entered blinks.

– Press the J key to store the 1st linearization weight. Then the scale returns to

menu code setting »1-18-2 «.

– Using the k key, scroll to the menu code settings »1-18-3 «, »1-18-4 «, and

»1-18-5 « and enter the values for Lin. 2, Lin. 3 and Lin. 4 according to the
instructions above.

If you do not require all linearity positions, enter „0“ in the unused fields to blank

these lines in the display.

– Once all entries have been made, menu code setting »1-18-5 « must be

displayed.

menu_1182.eps

user1.eps

userl2.eps

menu_1182.eps

menu_1185.eps

34

Service Manual Signum

Repairing the Display Unit

Repairing the Display Unit

Opening the Display Unit

Warning

Disconnect the cable from the power source.

1 You must loosen four nuts (see the picture on the left) to open the display unit.
2 Cut through the warranty stickers (seals).
3 Open the housing.
4 Now all parts are accessible.

Closing the Display Unit

1 Plug all connectors back into the unit.
2 Close the display unit.
3 Reconnect the unit to line voltage.
4 Check the functions of the display unit to ensure that they are working properly.

Important note:

Once the scale has been repaired and checked to ensure its proper functioning,
new warranty stickers (seals) must be applied.

AUT23103.JPG

!

35

Service Manual Signum

Repairing the Display Unit

Replacing the Front Panel

In the case of a defective keypad overlay, keys, or display, the entire front panel
must be replaced (see the picture on the left).

– Open the display unit (see page 34)

- Replace the entire front panel with a new one

- Close the display unit (see page 34)

Replacing the Cable

– Open the display unit (see page 34)

- Unplug all connectors from the cable

- Loosen the screw

- Replace the cable with a new one

- Close the display unit (see page 34)

– After replacing the cable, use a torque wrench to tighten the cable gland to

3 Nm.

AUT23152.JPG

AUT23301a.JPG

36

Service Manual Signum

Repairing the Display Unit

Replacing the Display PCB
Important note:

Do not connect or disconnect live power cables to or from the equipment;
always disconnect the power cable from the wall socket (mains supply)
first. Otherwise, components could be destroyed.

– Open the display unit (see page 34)

– Unplug the cable from the ST1 connector
and the overlay cable from the keypad.
– If an A/D converter or rechargeable

battery pack is being used, unplug the
cable from connector ST2 also.

– Remove the screws
– Remove the display PCB (X)

– Replace the display PCB with a new one

– Connect the cable

- Close the display unit

(see page 34)

AUT24201.JPG

AUT24205.JPG

BU1

St2

St1

BU1

AUT23302a.JPG

AUT23359a.JPG

X

37

Service Manual Signum

Replacing Components

Repairing the Scale

Opening a Scale Featuring Strain Gauge Technology

IP44 IP65

Warning:

Disconnect the cable from the
power source.

1 Remove the load cell.

2 Loosen and remove the two screws (Q)

from the support plate.

3 Remove the four screws (R)

from the O-ring (see picture on the right).

4 Remove the ten screws (P) from the cover.

Cut through the warranty stickers (seals).
Remove the O-ring (on units with IP65

protection).

5 The scale housing is now accessible.

6 Remove the six screws (O) from the data

output plate (U).

Remove the gasket (on units with IP65

protection).

!

1

2

4

5

6

O

P

Q

Explo00a.jpg

Explo01z.jpg Explo01e.jpg

U

1

2

3

4

5

P

Q

R

Explo00a.jpg Explo01y.jpg

38

Service Manual Signum

Replacing Components

Opening a Scale Featuring Electromagnetic Force Compensation

Warning

Disconnect the cable from the power source.

1 Remove the load cell plate.

2 Loosen the two screws (Q) on the load cell

and remove the load cell.

3 Place the load cell to the side

(see picture on the right).

4 Remove the ten screws (P) from the cover.

5 Cut through the warranty stickers (seals).
6 The scale housing is now accessible.

AUT24260a.JPG

AUT24261.JPG

AUT24252.JPG

!

Q

P

AUT24262.JPG

39

Service Manual Signum

Replacing Components

AUT24263a.JPG

Closing the Scale

1 Plug the connectors back in.
2 Reassemble the parts of the housing in order.
3 If necessary, be sure to include the all O-rings and gaskets.
4 Replace and tighten the screws (P).
5 Plug the unit back into AC power.
6 Check the scale to ensure that it is functioning properly.

Important note:

Once the scale has been repaired and checked to ensure its proper
functioning, new warranty stickers (seals) must be applied.

40

Service Manual Signum

Replacing Components

Replacing the Power PCB

Warning

Disconnect the cable from the power source.

Important note:

Do not connect or disconnect live power cables to or from the equipment;
always disconnect the power cable from the wall socket (mains supply) first.
Otherwise, components could be destroyed.

– There are three different power supply versions: (B1) 24V and (B2) 230V and (B3)

Zone 2.

– Loosen and remove six screws from the data output plate (U).
– Cut through the warranty stickers (seals).
– Fold down the data output plate (U).

– Pry the protective cap (A1) from the power PCB (B1).

To do this, insert the end of a slotted-head screwdriver into each of the four

openings on the protective cap and carefully push the retainer clips, located further
down, to one side.

– Remove the protective cap (A1) and disconnect the wire (red/brown).

– Unplug connector X, remove the 2 screws (V) and replace the power supply (B1).
– Make sure to return the protective cap to its original position.

– Apply new warranty stickers (seals) to the unit.

AUT22922a.JPG

AUT22922b.JPG

B2

!

A1

V

W

V

AUT24188.JPG

B3

AUT24186.JPG

B3

B1

X

X

X

X

U

41

Service Manual Signum

Replacing Components

!

AUT22916.JPG

- +

Z

AUT22917b.JPG

O1

U

O

AUT24188.JPG

Z

U

Replacing the Data Output PCB

Warning

Disconnect the cable from the power source.

Important note:

Do not connect or disconnect live power cables to or from the equipment;
always disconnect the power cable from the wall socket (mains supply)
first. Otherwise, components could be destroyed.

Different versions of this PCB (see pages 59-60) can be installed in the
unit.

– Loosen and remove six screws (O) from the data output plate (U).
– Cut through the warranty stickers (seals).
– Remove the data output plate (U).

– When you replace the data output PCB (Z) make sure that the connectors are

plugged in correctly.

– If you are replacing the battery, it is imperative that you install it with the

correct polarity (+ / -).

42

Service Manual Signum

Replacing Components

Replacing the Main PCB

Warning
Disconnect the cable from the power source.

Important note:
Do not connect or disconnect live power cables to or from the

equipment; always disconnect the power cable from the wall
socket (mains supply) first. Otherwise, components could be
destroyed.

Different versions of this PCB (see picture on the left) can be

installed in the unit.

– Loosen and remove six screws (O) from the data output plate (U).
– Cut through the warranty stickers (seals).
– Remove the data output plate (U).

– When you replace the digital PCB, be sure that all cables are reconnected.

AUT23155a.JPG

!

AUT24188.JPG

Z

U

43

Service Manual Signum

Replacing Components

AUT24194.JPG

AUT24192.JPG

AUT24197a.JPG

AUT24192.JPG

Replacing the System PCB

Important note:

Please refer to page 37, „Opening a Scale Featuring Strain Gauge
Technology

– Strain gauge scale with system PCB
– When you replace the system PCB, make sure that all cables have been

reconnected.

Important note:

See page 38, „Opening a Scale Featuring Electromagnetic Force
Compensation“

– Electromagnetic force compensation scale with system PCB
– When you replace the system PCB, make sure that all cables have been

reconnected.

44

Service Manual Signum

Component Replacement SIWAEDG

Replacing the Power Supply PCB
Opening the Display Unit (

see page 34 )

Caution: Unplug the power cord

– The protective cover needs to be lifted when replacing the power supply PCB.
To do this, insert a regular screwdriver into the four openings of the protective cover

and carefully press the clips located at the bottom to the side.

– Remove the protective cover and disconnect the power cord on the right (blue/brown).
– Remove the left plug (red/blue), remove the screws and replace the power supply.

Do not forget to reattach the protective cover.

Replacing the Main PCB

– Loosen and remove the ribbon cable and power supply cable
– Remove the screws, cable and replace the PCB
– Once the main PCB has been replaced, make sure that the plug connections are properly

reconnected.

45

Service Manual Signum

Component Replacement SIWAEDG

Replacing the System Board

Caution: Unplug the power cord

– Remove the ribbon cable and system plug
– Remove the screws and replace the PCB

– Check to make sure that the plug connections are connected properly after replacement.

Replacing the Data Output PCB

– Remove the screws, cable and replace the PCB
– Once the data output PCB has been replaced, make sure that the plug connections are

properly connected.

– If the battery is being replaced, make sure that the polarity (+ / -) is correct.

46

Service Manual Signum

Optional Data Output Ports/Interfaces

Installation of the Profibus Module

Profibus Module Plate with IP65 Protection

Important note:

After installation of the Profibus
module, the cable connectors must

be equipped with a flat ferrite and
glued with silicone.

(see pictures on the rigth).

Data Output Plate with IP65
Protection

DSC03656a.JPG

DSC03654a.JPG

AUT23155a.JPG

Bu1a

DSC03658.JPG

DSC03653a.JPG

DSC03651a.JPG

Bu2a

St2a

St1a

FF

FF

SI

SI

47

Service Manual Signum

Optional Data Output Ports/Interfaces

Data Output Plate with IP44 Protection

Com1: RS232 Com1: RS232 + Option COM2

Com1: RS232 Com1: RS232 + Option COM2

Com1: RS232+ Com1: RS232+ + Option COM2

Option Clock
Com1: RS232++ Com1: RS232++ + Option COM2 Com1: RS232++ + Option
COM2

Option Clock + PS/2

Ethernet

48

Service Manual Signum

Optional Data Output Ports/Interfaces

Data Output Plate with IP65 Protection

Com1: RS232 Com1: RS232 + Option COM2

Com1: RS232 Com1: RS232 + Option COM2

Com1: RS232+ Com1: RS232+ + Option COM2

nicht
benutzt

nicht
benutzt

nicht
benutzt

49

Service Manual Signum

Com1 Interface SIWAEDG

Installing the Data Output Cable

– Open the display unit (see page 34)

- Connect the cable according to the assignment chart

- Close the display unit (see page 34)

– After installing the cable, tighten the cable gland using a torque of 3 Nm.

J1

1

Screw Terminal Assignment

Terminal Function Terminal Function
1 CTS 11 LOAD PRINT
2 DTR 12 RESET OUT
3 RxD 13 GND
4 TxD 14 GND
5 GND 15 5V OUT
6 Universal 16 5V switched
7 Minor (<) 17 Keyboard data
8 PARES (=) 18 Keyboard clock
9 MAJOR (>) 19 Shield
10 SET 20 LINE OUT

50

Service Manual Signum

Error Codes

Error codes are shown on the main display. Err codes are shown continuously; Inf messages are shown for 2 seconds,
after which the program returns automatically to the weighing mode.

Display Cause Solution

Err 101 - 104 Key is stuck Release key or
Key pressed at power on Contact your local Sartorius Service Center

Err 320 Program memory defective Contact your local Sartorius Service Center
Err 335 Verified weighing platform not compatible Connect a compatible weighing platform

with the connected terminal
Err 340 Operating parameter memory (EEPROM) defective Turn the scale off and then on again

If Err 340 is still displayed, contact
your local Sartorius Service Center

Err 341 Data lost from RAM; Leave the scale power on for at least 10 hrs.
battery needs to be recharged
Err 343 Data lost from the memory module Contact your local Sartorius Service Center

for transaction numbers in external alibi memory

Inf 01 Data output not compatible with output format Change the menu settings
Inf 02 Calibration/adjustment condition Calibrate only when zero is displayed.

not met; for example, not tared or Press ) to tare
there is a load on the weighing pan Unload the scale

Inf 03 Adjustment could not Allow the scale to warm up again and then
be completed within a certain time repeat the adjustment process

Inf 06 Built-in calibration weight defective Contact your local Sartorius Service Center

51

Service Manual Signum

Error Codes

Display Cause Solution

Inf 07 Function not allowed in scales Contact your local Sartorius Service Center
verified for use in legal metrology for details on changing settings

Inf 08 The load on the scale is too heavy to zero the readout Check whether “Tare/zero at power on” is set (1.12)
Inf 09 Taring is not possible when the gross weight Zero the scale

is a minus value
Inf 10 Tare key is blocked when there The data stored in the 2nd tare memory

is data in the tare memory (Combics 2 only) must be deleted (clear
the memory) before taring

Inf 22 Error in storing reference value, load is too light Put a heavier weight on the scale
Inf 23 Error in initializing an application Contact your local Sartorius Service Center
Inf 29 Minimum load not reached Change menu, or perform “Close” function check

the interface and cable of the connected devicen
Contact your local Sartorius Service Center

Inf 30, 31 Indicator is in the xBPI-mode Define a lower value for the minimum load
(in the Application settings, menu item 3.6)

Inf 71 Cannot store the current weight value None
(e.g., if control limits are too low or too high)

Inf 72 Cannot store the current weight value None
(e.g., the transaction counter has reached its limit)

Inf 73 Data not found or unreadable Contact your local Sartorius Service Center

52

Service Manual Signum

Error Codes

Display Cause Solution

Inf 74 Function is blocked (e.g., menu is locked) None
Inf 98 No weighing platform connected Connect weighing platform
Inf 99 No weighing platform connected Connect weighing platform
NO WP No weighing platform connected Connect weighing platform

In addition to standard tools, you will need the following special tools and
programs to work on Signum series scales

Designation Order No.

- Sartorius Service Software (H8S) 6740-88

with USB dongle

*)

- Sartorius Service Software (H8S) 6740-89

with LPT dongle

*)

*)

Registration in ISSS required

53

Service Manual Signum

Block Diagram

Block Diagram

54

Service Manual Signum

Working with the Service Software

Service Switches

There are two sliding switches on the data output PCB for use by service
technicians. These switches are located on the back of the scale and can be
activated through the borehole using a thin object.

The illustration shows two individual switches:

- Menu access switch (L)

- Flash switch (M) —> see page 20 for details.

Function of the Service Switches

Menu Access Switch

Warning

Only open this switch for service purposes. At all other times, it
should remain in the „closed“ position.

This switch must be open in order to work with the Sartorius Service Software. If
the switch remains closed, the error message „ACCESS SWITCH LOCKED“ will be
displayed in the service program.

Men-Swi-Li.eps

Upper switch
right closed

Upper switch
Left open

Men-Swi-Re.eps

!

AUT23003a.JPG

M

L

55

Service Manual Signum

Working with the Service Software

Boot Switch (Flash Switch)

Warning

Activate this switch only if an attempt to program the application­data memory with the PPLOADER program fails (programming
routine stops responding).

Procedure for returning the PCB to bootable mode:
– Disconnect the scale from AC power.
– Slide the boot switch to the right and plug the scale back into AC power.
– Afterwards, slide the switch to the left again. After a short time, the PCB is

ready to boot (reload the application software using PPLOADER).

SBI/XBPI

Important note: The COM 1 interface must be set to XBPI (eXtended Binary

Processor Interface) protocol before you can perform calibration/

adjustment procedures or program the scale using the Sartorius Service
Software (see page 22).

Close Function

After using the service software, select the „Close“ function to reactivate write­protection and return the weighing system to SBI mode for data output. When
the SBI mode is active the scale uses the SBI protocol, which is required for
communication with the printer.

!

Men-Swi-Li.eps

Lower switch
left open

Lower switch
right closed

Men-Swi-Li.eps

56

Service Manual Signum

Working with the Service Software

Setting the XBPI-232 Protocol

You need to set the scale to the XBPI protocol (BPI-232) in order to perform
calibration/adjustment procedures or program the scale using the service
software.

– Switch the Signum scale off (press the e key).
– Switch the Signum scale back on (by pressing the e key). While all

segments are displayed, briefly press the ) key.

APPL appears in the display.

– Using the k key, scroll to SETUP.

– Press the ) key. WP-1 is displayed.

disp_wp-1_d.eps

disp_8888_d.eps

disp_appl_d.eps

disp_setup_d.eps

57

Service Manual Signum

Working with the Service Software

– Mit der Taste k bis COM-1 scrollen.
– Use the k key to scroll to COM-1.

– Press the ) key. DATPROT is displayed.

– Press the ) key again. BPI-232 appears in the display.

Important note:

The X is not displayed when BPI-232 is selected.

disp_xbpi_d.eps

disp_com-1_d.eps

disp_datprot_d.eps

58

Service Manual Signum

Calibration/Adjustment Data

Calibration/Adjustment Data for the SIWR

Example for the order number of a Signum full range scale: SIWRDCP-1-15-L or SIWRDCP-3-15-NCE

Model type | Sensor | Platform | Type of/ | Application- | Capacity | Display | Verifiable/ |
technology dimensions material level (kg) resolution verified
(in mm) versions
SIW R

1)

DC P

4)

1 15 N NCE

1)

= SIWR: „Regular“ standard weighing system - (strain gauge technology)

4)

= Painted

59

Service Manual Signum

Calibration/Adjustment Data

Calibration/Adjustment Data for the SIWR

Example for the order number of a Signum full range scale: SIWRDCP-2-60-R oder SIWRDCP-3-60-RCE

Model type | Sensor | Platform | Type of/ | Application- | Capacity | Display | Verifiable/ |
technology dimensions material level (kg) resolution verified
(in mm) versions
SIW R

1)

DC P

4)

2 15 R RCE

1)

= SIWR: „Regular“ standard weighing system - (strain gauge technology)

4)

= Painted

just_Signum_290508.xls

60

Service Manual Signum

Calibration/Adjustment Data

Calibration/Adjustment Data for the SIWA

Example for the order number of a Signum full range scale: SIWADCP-2-35-S

Model type | Sensor | Platform | Type of/ | Application- | Capacity | Display | Verifiable/ |
technology dimensions material level (kg) resolution verified
(in mm) versions
SIW A

2)

DC P

4)

2 35 S

2)

= SIWA: „Advanced“ mechatronic weighing system (strain-gauge technology)

4)

= Painted

Signum SIWAEDG

SIWAEDG-3-65-S 65 kg 1 g 20 kg 1 g 20 kg 2 g

F2

20 kg 20 kg 1 g - kg 0 - Max kg 3 g 8 n

SIWAEDG-3-35-S 35 kg 0,5 g 10 kg 0,5 g 10 kg 2 g

F2

10 kg 10 kg 0,5 g - kg 0 - Max kg 1,5 g 6 n

SIWAEDG-3-16-S 16 kg 02 g 5kg 0,2 g 5kg 0,8 g

F2

5kg 5kg 0,2 g - kg 0 - Max kg 0,6 g 6 n

61

Service Manual Signum

Calibration/Adjustment Data

Calibration/Adjustment Data for the SIWS

Example for the order number of a Signum full range scale: SIWSDCP-3-16-H oder SIWSDCP-3-16-HCE

Model type | Sensor | Platform | Type of/ | Application- | Capacity | Display | Verifiable/ |
technology dimensions material level (kg) resolution verified
(in mm) versions
SIW S

3)

DC P

4)

1 15 N NCE

3)

= SIWS: „Supreme“ monolithic weighing system

4)

= Painted

just_Signum_290508.xls

Sartorius Weighing Technology GmbH
Weender Landstraße 94–108
37075 Goettingen, Germany
Telephone [phone]
Fax [phone]
Internet: http://www.sartorius-mechatronics.com
E-mail: [e-mail]

Copyright by Sartorius, Goettingen, Germany.
All rights reserved. No part of this publication
may be reprinted or translated in any form or by any means
without the prior written permission of Sartorius.

The status of the information, specifications and
illustrations in this manual is indicated by the date
given below. Sartorius reserves the right to
make changes to the technology, features,
specifications and design of the equipment
without notice.

Status: March 2012 Sartorius, Goettingen, Germany

Printed in Germany on paper that has been bleached without any use of chlorine · RS
Publication No.: WSI5107-e12036