Re-Cooling Unit; Description Of The Optional Components; Aop30 Advanced Operator Panel; Output-Side Circuit-Breaker - Siemens SINAMICS S120 Operating Instructions Manual

2.5.7

Re-cooling unit

The re-cooling unit supplies the liquid-cooled drive unit with cooling liquid.
The re-cooling unit ensures sufficient coolant flow in the inner cooling circuit of the drive unit
– and for the exchange of heat with the outer cooling circuit of the re-cooling unit.
For additional information, refer to the operating instructions of the re-cooling unit.
2.6

Description of the optional components

2.6.1

AOP30 Advanced Operator Panel

The "Advanced Operator Panel AOP30" operator panel it is an input/output device. The AOP30
is used for commissioning, operator control and diagnostics.
The AOP30 communicates with the CU320-2 Control Unit via an RS232 serial interface using
the PPI protocol.
Note
You can find a description of the AOP30 in the "SINAMICS S120 Cabinet Modules" Manual,
Chapter "Options / K08, AOP30 Advanced Operator Panel".
2.6.2

Output-side circuit-breaker

The output-side circuit breaker disconnects the motor terminals from the converter.
The output-side circuit breaker is installed in a separate cabinet.
Note
You can find a description of the circuit breaker in the "SINAMICS S120 Cabinet Modules"
Manual, Chapter, "Options / L34, output-side circuit breaker".
2.6.3

Operation in an IT supply system

Surge arresters and upstream fuses are installed for each phase. The signaling contacts of
the monitoring of the surge arresters and the fuses are connected in series and connected to
a customer interface.
Note
You can find a description in the "SINAMICS S120 Cabinet Modules" Manual, Chapter,
"Options / L21, operation on an IT supply system.
Siemens Drives & PLCs
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A
2.6 Description of the optional components
Description
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