External Safety Components; Protection And Monitoring Functions Of Internal Components; Protection And Monitoring Functions For External Components - Siemens SINAMICS GL150 Operating Instructions Manual

3.2.3

External safety components

The safety concept of the converter is supplemented by the following external components:
● Circuit breaker
● Input-side transformer
3.2.4

Protection and monitoring functions of internal components

The internal components of the converter have the following protection and monitoring
functions:
● Converter protection based on monitoring systems:
● 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
● Anti-condensation heating
3.2.5

Protection and monitoring functions for external components

Transformer and motor can be monitored in the device. A fast protective shutdown that you can
activate for external problems, e.g. short-circuits, is present.
SINAMICS GL150 6SL38555UN113KA0Z
Operating Instructions Rev.201910281450 EXAMPLE
You can find more detailed information in the section "Circuit breaker (provided by the
customer)".
When an error is detected, the medium-voltage transformer limits the short-circuit current
and is configured in such a way that the maximum permissible short-circuit current (see the
technical data) is not exceeded.
– Current monitoring
– Output voltage monitoring
– Thermal monitoring of the DC link reactor
– Insulation monitoring
– Supply voltage monitoring
– Circuit breaker monitoring
– Heat exchanger unit monitoring
unit
Description
3.2 Safety concept
29