Bosch WBE 4120 Instandsetzungsanleitung Seite 46

Error code Problems
The protecting carter is not down.
Err 6
Break of the carter micro switch.
Err 6
The gap of phases of the two pick-ups is too
Err 7
wide.
The left pick-up is not connected or defective.
Err 8
The right pick-up is not connected or defective.
Err 9
Defect of the position revealers in the optoelec-
Err 10
tronic system.
The engine does not turn in the optoelectron-
Err 10
ic system.
Defect of the detector of the zero passage in
Err 11
the optoelectronic system.
The engine does not turn in the optoelectron-
Err 11
ic system.
The weight is out of adjustment field (the suit-
Err 17
able weight to balance the wheel is higher than
250 grams).
The wheel data have not been set up.
Err 18
The signal at the entry of the right pick-up is
Err 19
less intense than the one of the left pick-up.
The brake pedal has been pressed during the
Err 20
measure.
The rotation speed of the engine is irregular.
Err 20
The electronic board has detected a dangerous
Err 21
situation because of the extremely high speed
of the wheel during a phase of inaction (the
shaft turns at a high speed without the start of
the operator): the power electric part is disa-
bled.
Irregular signals of the optoelectronic board.
Err 22
The gauge for the measure of the distance is
Err 23
not in rest position.
Two buttons pressed at the same time.
EEE EEE
Defective keyboard.
EEE EEE
Bosch Automotive Service Solutions GmbH
Problems and error codes | WBE 4120 / WBE 4120 D / WBE 4120 DT | 47
Causes and possible solutions
Push down the carter when the wheel is mounted.
Substitute the micro switch. (chapter 8.5).
+ Verify that the weight for each calibration has been applied in a
correct way.
+ Verify the position of the machine: maybe it is not stable and it
vibrates too much.
+ If the problem persists even after fixing the machine correct-
ly, check the connection of the detectors and of the electron-
ic board.
+ Substitute the pick-ups. (chapter 8.1 and chapter 8.4.1).
+ If the problem persists after changing the pick-ups, substitute
the board. (chapter 9).
Check and substitute the left pick-up. (chapter 8.1 and chapter
8.4.1).
Check and substitute the right pick-up. (chapter 8.1 and chapter
8.4.1).
Verify the connection of the optoelectronic board.
+
+ Verify that the optoelectronic board is protected by the environ-
ment light and cover it if necessary.
+ If the imperfection persists, check and, if necessary, substitute
the optoelectronic board. (chapter 8.2).
Check the electrical part, see the wiring diagram N. 654144.
+ Verify the connection of the optoelectronic board.
+ Verify that the optoelectronic board is protected by the environ-
ment light and cover it if necessary.
+ If the imperfection persists, check and, if necessary, substitute
the optoelectronic board. (chapter 8.2).
Check the electrical part, see the wiring diagram N. 654144.
+ Check that the wheel has been fixed correctly on the flange.
+ Search for the external position (anyway), apply a 100 grams
weight and launch again.
+ If the problem persists, do the calibration again. (chapter 7).
+ Set up the wheel data before making the measure launch.
+ Check that the gauges are enabled. (chapter 6).
+ Maybe you inverted the connection of the two pick-ups: Check
(and change if necessary) the connection of the two pick-ups.
Substitute the pick-ups. (chapter 8.1 and chapter 8.4.1).
+
Do not press the brake pedal when the engine is on.
+ Be careful not to hit the machine during the measure cycle.
Check the net tension. See the wiring diagram N. 654144.
+
+ Check the engine (chapter 8.3).
+ 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 electronic part:
board (chapter 9) or encoder (chapter 8.2).
Verify that the optoelectronic board is protected by the environ-
+
ment light and cover it if necessary.
+ If the imperfection persists, check and, if necessary, substitute
the optoelectronic board. (chapter 8.2).
+ Check and, if necessary, substitute the electronic board of the
control panel (chapter 9).
+ Verify that the gauge is in rest position.
+ Check the analog value at 5. (chapter 8.4.4).
+ Repeat the calibration of gauges.
Press one button at a time.
Check and, if necessary, substitute the electronic board of the con-
trol panel (chapter 9).
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1 695 600 579 2016-08-02