Connecting The Signal Cables; Connect The Coupling Unit To The Evaluation Unit - Siemens SINAMICS SL150 Operating Instructions Manual

Electrical connection
6.5 Connecting the power unit
5. Fix the power cables from behind to the front. The connection busbars are labeled with the
6. Seal the floor panel and the cables passing through the panel so that they are air-tight.
6.5.2

Connecting the signal cables

There are terminal strips and interfaces on the Power Stack Adapter in the electronics
compartment of the power unit. The signal traffic to the open-loop and closed-loop control
cabinet is handled via these interchange points.
The terminal blocks are used to wire up the following:
● Signals
● Auxiliary voltage for fans and anti-condensation heating systems
● Power supply for the electronics
Procedure
To connect the signal lines, proceed as follows:
1. Connect the signal lines at the intended clamping points.
2. Connect the shield to the shield bus as shown under Using the equipotential bonding strip
6.5.3

Connect the coupling unit to the evaluation unit

The coupling unit is installed in the power unit at the factory and connected to the correct
terminal.
66
phase designation.
NOTICE
Damage caused by overheating
Unless the floor panel is air-tight, adequate cooling cannot be guaranteed. This can cause
components to overheat.
● Seal any access holes made in the floor panel immediately after installation so that they
are air tight, in order to ensure sufficient cooling.
and shield bus (Page 64). Refer to the "Circuit manual for power unit" for the precise
assignment. Pay attention to the EMC directives.
SINAMICS SL150 6SL38600UL432AA0Z
Operating Instructions Rev.201910281433 EXAMPLE