
Installation
4.3 Electrical installation
48
4.3.3 Connecting the power cables and control cables
Remove all fuses for the AC main power supply to the inverter, remove all the fuses from the DC inputs,
and disconnect all the auxiliary circuits in the inverter cabinet.
Remove all fuses and disconnect the auxiliary circuits in the AC distribution cabinet (if present).
Before connecting, ensure that the cables are without power (isolated). If necessary, disconnect the
cable connection on the other side and prevent it from switching on again. Remove fuses and store them
safely, lock the circuit breaker, attach warning labels.
Ensure that all necessary safety measures have been taken at the installation site.
Always exercise the utmost caution, since high DC and AC voltages can cause fatal injuries.
Inverter-drive connection
The individual cabinet sections must be connected to each other (connection between drive and AC
cabinet). The connecting cables are in the AC cabinet - one end is connected to the transformer. The
other cable end must be connected to the drive (take care to match the three phases). The cables should
be positioned before the cabinets are installed, as they later may no longer be accessible. The power and
control cables are connected according to the circuit diagram.
Do not forget to attach the ferrite rings to the cables between the inverter and the transformer. All cables
must pass through these magnetic core rings.
Figure 4-3 Accessory kit ferrite rings
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