RE 29698-01-B/2021-06-22, Bosch Rexroth AG
Troubleshooting |
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14 Troubleshooting
The Table 9 is intended to support troubleshooting. This table is not exhaustive.
Issues may occur in practice that are not listed here.
If the electronic CAN pedal is faulty, an error code is emitted. The message
containing the error code depends on the protocol used (see data sheet
29898). The description of the error codes is available on request.
14�1 Malfunction table
Table 9: Pedal malfunction table
Malfunction
Occurrence possible
Possible cause
Remedy
Proto
0 km Operation
Pedal does
not supply
a signal
x
x
Mixing up the connection lines
when connecting the pedal to
the superior control system.
Check the wiring and/or the wiring harness both at
the pedal connector and at the superior control.
x
x
x
Pedal was mechanically
damaged from the outside during
operation.
Check the pedal for obvious damage. Replace the
product if needed.
x
x
x
Incorrect or faulty voltage
supply:
- Pedal supply voltage is missing.
- Pedal supply voltage is too low.
Measure the supply voltage at the contacts of the
pedal and make sure that all contacts in the mating
connector are correctly fitted and latched.
Make sure that the mating connector is connected to
the pedal until latching.
x
x
x
Short circuit of the output
signals of the pedal by:
- Damage to the insulation in the
connected wiring harness.
Check the pedal and machine harness for obvious
damage. Replace the product if needed.
Pedal
supplies
incorrect or
no signal
(x)
x
x
Humidity has entered the wiring
harness or the pedal.
The seals of the wiring harness connector are
defective or the cable/pedal has been damaged.
x
The input resistances RPU and/
or RPD of the control unit are
either too large (high resistance)
or too small (low resistance).
Check whether the pedal is operated within its
"operating limits" and make sure that the input
resistances and the input capacitances of the
connected control unit are within the limits specified
in data sheet 29898.
x
x
x
The ground line of the pedal
is not connected to the pedal
ground of the control unit.
There is a "potential shift" due to
different grounds between pedal
and higher-level control
Make sure that the ground of the pedal is connected
to the respective ground of the control unit with
a low resistance. Measure the connection.
x
The pedal EMC environment
exceed the values stated in the
data sheet.
Stop the machine.
