Bosch WBE 4100, Repair Instructions

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1 695 656 135 2011-01-12
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Robert Bosch GmbH
22 | WBE 4100 | Problems and error codes en
Error code Problems Causes and possible solutions
Err 7
The gap of phases of the two
pick-ups is too wide.
R Verify that the weight for each calibra-
tion has been applied in a correct way.
R
Verify the position of the machine: maybe it
is not stable and it vibrates too much.
R
If the problem persists even after fixing the ma-
chine correctly, check the connection of the de-
tectors and of the electronic board.
R
Substitute the pick-ups. (chapter 8.1 and chapter 8.4.1).
R
If the problem persists after changing the pick-
ups, substitute the board. (chapter 9).
Err 8
The left pick-up is not connected or defective.
Check and substitute the left pick-up. (chap-
ter 8.1 and chapter 8.4.1).
Err 9
The right pick-up is not connected or defective. Check and substitute the right pick-up. (chap-
ter 8.1 and chapter 8.4.1).
Err 10
Defect of the position revealers in
the optoelectronic system.
R
Verify the connection of the optoelectronic board.
R
Verify that the optoelectronic board is protected by
the environment light and cover it if necessary.
R
If the imperfection persists, check and, if necessary, sub-
stitute the optoelectronic board. (chapter 8.2).
Err 10
The engine does not turn in the op-
toelectronic system.
Check the electrical part, see the wiring diagram N. 654144.
Err 11
Defect of the detector of the zero pas-
sage in the optoelectronic system.
R
Verify the connection of the optoelectronic board.
R
Verify that the optoelectronic board is protected by
the environment light and cover it if necessary.
R
If the imperfection persists, check and, if necessary, sub-
stitute the optoelectronic board. (chapter 8.2).
Err 11
The engine does not turn in the op-
toelectronic system.
Check the electrical part, see the wiring diagram N. 654144.
Err 17
The weight is out of adjustment field
(the suitable weight to balance the
wheel is higher than 250 grams).
R Check that the wheel has been fixed correctly on the flange.
R Search for the external position (anyway), ap-
ply a 100 grams weight and launch again.
R If the problem persists, do the calibration again. (chapter 7).
Err 18
The wheel data have not been set up.
R Set up the wheel data before making the measure launch.
R Check that the gauges are enabled. (chapter 6).
Err 19
The signal at the entry of the right pick-up is
less intense than the one of the left pick-up.
R Maybe you inverted the connection of the two pick-ups: Check
(and change if necessary) the connection of the two pick-ups.
R
Substitute the pick-ups. (chapter 8.1 and chapter 8.4.1).
Err 20
The brake pedal has been pressed
during the measure.
Do not press the brake pedal when the engine is on.
Err 20
The rotation speed of the engine is irregular.
R
Be careful not to hit the machine during the measure cycle.
R
Check the net tension. See the wiring diagram N. 654144.
R
Check the engine (chapter 8.3).
Err 21
The electronic board has detected a dan-
gerous situation because of the extreme-
ly high speed of the wheel during a phase
of inaction (the shaft turns at a high
speed without the start of the opera-
tor): the power electric part is disabled.
R
Turn off the machine, push down the protecting carter and
then turn on the machine without moving the wheel: if the
problem persists, you need to check or substitute the elec-
tronic part: board (chapter 9) or encoder (chapter 8.2).
Err 22
Irregular signals of the optoelectronic board.
R Verify that the optoelectronic board is protected by
the environment light and cover it if necessary.
R If the imperfection persists, check and, if necessary, sub-
stitute the optoelectronic board. (chapter 8.2).
R
Check and, if necessary, substitute the electron-
ic board of the control panel (chapter 9).
Err 23
The gauge for the measure of the dis-
tance is not in rest position.
R
Verify that the gauge is in rest position.
R
Check the analog value at 5. (chapter 8.4.4).
R
Repeat the calibration of gauges.
EEE EEE
Two buttons pressed at the same time.
Press one button at a time.
EEE EEE
Defective keyboard.
Check and, if necessary, substitute the electron-
ic board of the control panel (chapter 9).