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Disturbances
NOTE!
As long as there is “only” an informative error the sensor still transmits
valid position data. However, it is possible that the door zone indica-
tion is not working as desired. The sensor should be replaced.
12.5
Fault Clearance
CAUTION!
The device, the connection line and the signal cable must not be in-
stalled next to sources of interference that emit strong inductive or ca-
pacitive interference or strong electrostatic fields.
External perturbations can be avoided thorough suitable cable routing.
The screen of the signal output cable should only be connected to the
following circuit on one side. The screens should not be grounded on
both sides. Signal cables always have to be routed separately from the
load power line. A safety distance of at least 0.5 m has to be kept from
inductive and capacitive sources of interference such as contactors,
relays, motors, switching power supplies, clocked controllers etc.!
If interferences occur in spite of all the items stated above being ob-
served, please proceed as follows:
1.
Installation of RC-circuits via contactor coils of AC-contactors
(e.g. 0.1 µF / 100
Ω
)
2.
Installation of recovery diodes via DC-inductors
3.
Installation of RC-circuits via the different motor phases (in the
terminal box of the motor)
4.
Do not connect protective earth and ground
5.
Connect a mains filter ahead of the external power pack
6.
Connect the ground connector to ground
