Bosch WBE 4230 Notice Originale page 49

Faults Causes
20 1. Pedal pressed during measurement
2. Irregular rotational speed of motor
3. Wheel speed below minimum value
21 The PCB has detected an excessively high wheel speed
with the wheel guard open (shaft rotating at high speed
although the machine has not been started): Power sup-
ply unit is deactivated
22 Irregular measurement sensor signals
23
Vernier caliper/gauge arm not in rest position
1. Two keys pressed simultaneously
EEE EEE
2. Display PCB defective
Robert Bosch GmbH
Faults | WBE 4230 | 49
Remedy
1. Do not press pedal whilst motor is in operation.
2. Make sure the WBE 4230 is not subjected to any
impact during measurement.
3. Check mains voltage (probably too low).
1. Switch off the WBE 4230 .
2. Lower the wheel guard, switch the WBE 4230 on
again without moving the wheel.
3. If the error message persists, contact customer
service.
1. Check that the light barrier PCB is protected
against light and provide a cover if necessary.
2. Check and if necessary replace the light barrier
PCB.
3. Check and if necessary replace the display PCB.
1. Move the vernier caliper/gauge arm to rest positi-
on.
2. Repeat the calibration of the electronic vernier ca-
liper/gauge arm
1. Only ever press one key at a time.
2. Check and if necessary replace the display PCB.
1 695 656 347
en
|
2011-03-18