User Manual

Installing/mounting
4.2 EMC compliant installation of a machine or system
PM230 Power Module, IP55
22 Hardware Installation Manual, 12/2016, A5E35319202B AB
4.2.1
Cables
Cables with a high level of interference and cables with a low level of interference are
connected to the inverter:
● Cables with a high level of interference:
– Cable between the line filter and inverter
– Motor cable
– Cable on the inverter DC link connection
– Cable between the inverter and braking resistor
● Cables with a low level of interference:
– Cable between the mains and the line filter
– Signal and data cables
Routing cables outside the control cabinet
● Maintain a minimum clearance of 25 cm between cables with a high level of interference
and cables with a low level of interference.
● Use shielded cables for the following connections:
– Inverter motor cable
– Cable between the inverter and braking resistor
– Signal and data cables
● Connect the motor cable shield to the motor enclosure using a PG heavy-gauge threaded
joint that establishes a good electrical connection.
Requirements relating to shielded cables
● Use cables with finely-stranded, braided shields.
● Connect the shield to at least one end of the cable.
Figure 4-2 Examples for EMC compliant shield support
● Attach the shield to the shield support directly after the cable enters the cabinet.