3.1.3 Protection and monitoring functions of internal components
The internal components of the drive have the following protection and monitoring functions:
● Drive protection based on monitoring systems:
– Current monitoring
– DC link monitoring
– Monitoring the output voltage
– Thermal monitoring of the power unit
– Precharging monitoring
– Supply voltage monitoring
– Insulation monitoring
– Monitoring of the common power supply
– Circuit breaker monitoring
– Re-cooling unit monitoring
● Shutdown in the event of semiconductor failure
● Shutdown in the event of control component failure
● Internal protection functions for the control hardware
● Protection against communication failure between the closed-loop control and the power
unit
● Anti-condensation heating
3.1.4 Protection and monitoring functions for external components
Transformer and motor can be monitored in the drive. A fast protective shutdown that you can
activate for external problems, e.g. short-circuits, is present.
3.2 Control Module
The purpose of the Control Module is for the open-loop and closed-loop control of the drive.
Operating control and diagnostics of the drive are also realized using the Control Module.
Note
Details on the design can be found in the layout diagram.
Description
3.2 Control Module
SINAMICS SM120 6SL38715
28 Operating Instructions 07/2015
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