10 Operational disruptions, maintenance, cleaning
This chapter describes possible causes for faults and measures for elimination. In case of increasingly occurring faults,
please observe the measures for fault clearance described in section 10.1. If faults cannot be eliminated with the following
notes or measures, please contact the manufacturer (see second page).
10�1
Measures for fault clearance
CAUTION!
The device, connection lines and signal cables must not be installed close
to interference sources which have strong inductive or capacitive interference
or strong electrostatic fields.
External interferences can be avoided with a suitable cable routing.
The shield of the signal output cable should only be connected to the downstream
electronics on one side. The figure shows how the shield is connected to the position
display in order to avoid interferences.
The shields should not be grounded on both sides. Signal cables should always be laid
separately from load power lines. A safety distance of at least 0.5 mm from inductive
and capacitive interference sources such as contactors, relays, motors, switching power
supplies or clocked controllers has to be maintained!
If interferences occur in spite of all the points described above being observed, please proceed
as follows:
1.
Install RC circuits via contactor coils of AC contactors (e.g. 0.1 µF / 100
Ω
)
2. Install recovery diodes via DC inductors
3. Install RC circuits via the individual motor phases (in the terminal box of the motor)
4. Do not connect protective earth and ground potential
5. Connect a mains filter upstream of the external power pack
Earthing connection
PE
Shield
Signal cable
14/18
Bosch Rexroth AG
IMScompact position display | R320103179/2019-12