Wiring Requirement In Control Cabinet; Information About Shielding The Can Bus - MR ECOTAP VPD CONTROL PRO Operating Instructions Manual

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34 ECOTAP VPD CONTROL PRO
Figure 12: Recommended connection of the shielding
1 Connection of the shielding via a
single conductor

6.1.3 Wiring requirement in control cabinet

Note the following when wiring the control cabinet:
▪ The control cabinet where the device will be installed must be prepared in
accordance with EMC requirements:
– Functional division of control cabinet (physical separation)
– Constant potential equalization (all metal parts are joined)
– Line routing in accordance with EMC requirements (separation of lines
which cause interference and those susceptible to interference)
– Optimum shielding (metal housing)
– Overvoltage protection (lightning protection)
– Collective grounding (main grounding rail)
– Cable bushings in accordance with EMC requirements
– Any contactor coils present must be interconnected
▪ The device's connection cables must be laid in close contact with the
grounded metal housing or in metallic cable ducts with a ground connec-
tion.
▪ Signal lines and power lines/switching lines must be laid in separate cable
ducts.

6.1.4 Information about shielding the CAN bus

In order for the CAN bus to operate faultlessly, you have to connect the
shielding using one of the following variants. If you are not able to use any of
the variants detailed below, we recommend using fiber-optic cables. Fiber-
optic cables decouple the devices and are not sensitive to electromagnetic
interference (surge and burst).
2 Full-surface connection of the
5252433/02 EN
6 Mounting
shielding
Maschinenfabrik Reinhausen GmbH 2018