Balluff BAE011H, User Manual, Page: 66 / 118

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6
Interference resistance
All connections are protected against electromagnetic interference.
However, it must be ensured that the lowest possible capacitive or inductive interference
acts on the instrument and all connecting cables at the installation location of the
instrument.
The following measures are necessary to achieve this:
•
Shielded cable must always be used for all input and output signals
•
Control lines (digital inputs and outputs, relay outputs) must not exceed 30 m in
length and must not leave the building.
• The cable shields must be connected to earth over a large area using shield clamps
• The wiring of the ground lines (GND or 0 V) must be star-shaped and must not be
connected several times to ground
• The device should be installed in a metal housing and as far away as possible from
sources of interference
•
The cable routing must not be parallel to power lines and other lines with
interference
Cleaning, Maintenance and Service Notes
To clean the front of the unit please use only a slightly damp (not wet!), soft cloth. For
the rear no cleaning is necessary. For an unscheduled, individual cleaning of the rear the
maintenance staff or assembler is self-responsible.
During normal operation no maintenance is necessary. In case of unexpected problems,
failures or malfunctions the device must be shipped for back to the manufacturer for
checking, adjustment and reparation (if necessary). Unauthorized opening and repairing
can have negative effects or failures to the protection-measures of the unit.