Wiring Terminal Strips - Siemens SINAMICS G120 CU230P-2 HVAC Operating Instructions Manual

Communication with a higher-level control via CANopen
3.4.4

Wiring terminal strips

Solid or flexible cables are permitted as signal lines. Wire end ferrules must not be used for
the spring-loaded terminals.
The permissible cable cross-section ranges between 0.5 mm² (21 AWG) and 1.5 mm² (16
AWG). When completely connecting-up the unit, we recommend cables with a cross-section
of 1mm² (18 AWG).
Route the signal lines so that you can again completely close the front doors after
connecting-up the terminal strip. If you use shielded cables, then you must connect the
shield to the mounting plate of the control cabinet or with the shield support of the inverter
through a good electrical connection and a large surface area.
NOTICE
To ensure operating safety even when connecting 230 V to the Control Unit relay outputs
DO 0 and DO 2, for these connections cables with double insulation must be used.
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
Installing
3.4 Installing Control Unit
51