Lenze ELCAMZIxxx4SNNPSNN (LCU122) - Manual (Page 22)

Electrical installation
Important notes
5
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22 EDSLCMX3024-SPS EN 5.0
5 Electrical installation
5.1 Important notes

Note!
ƒ Please keep the plastic covers on the connectors for the control connections
and interfaces!
ƒ Cover unused connections during transport, storage and operation with the
plastic covers to preserve the certified safety engineering features.

Danger!
ƒ The X2x power connector contacts can conduct hazardous voltages if the
motor starter is connected to the mains. Therefore, disconnect the motor
starter before carrying out any work on it.
ƒ All control terminals feature only basic insulation (single isolating distance)
following the connection of a PTC thermistor (PTC) or a thermal switch (NC
contact):
– Protection against accidental contact with defective isolating distance can
only be ensured through external measures, e.g. double insulation.
ƒ To avoid injury to persons and breakdowns, it is essential that the motor
starter is properly earthed via X10!

Stop!
Ensure trouble-free operation of the motor starter:
ƒ Avoid compensating currents via the PROFIBUS cable shield:
– For this, connect all devices with a 16 mm 2 cable via the FE bolts.
– Lay cable in parallel to bus cable.
– Use a copper braid cable to connect the FE bolts with the mounting
surface.
ƒ Properly lock the connector plugs.