Bosch WBE 5210 Notice Originale page 42

en 42 | WBE 5210 | Faults
Faults Causes
19 Input signal of right measurement sensor
lower than that of left sensor
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 not in rest position
EEE EEE
1. Two keys pressed simultaneously
2. Display PCB defective
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1 695 654 697 2010-11-19
Remedy
Interchange the connections of the two measure-
ment sensors.
1. Do not press pedal whilst motor is in operation.
2. Make sure the WBE 5210 is not subjected to any im-
pact during measurement.
3. Check mains voltage (probably too low).
1. Switch off the WBE 5210 .
2. Lower the wheel guard, switch the WBE 5210 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 to rest position.
2. Repeat the calibration of the electronic vernier ca-
liper
1. Only ever press one key at a time.
2. Check and if necessary replace the display PCB.
Robert Bosch GmbH