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:
– Current monitoring
– Output voltage monitoring
– Indirect thermal monitoring of the DC link reactor
– Supply voltage monitoring
– Circuit breaker monitoring
– Monitoring the fans
● 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
3.2.5
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.
3.3
Power unit
3.3.1
Product features
In the standard version, the power unit has the following product features:
● Simple configuration
● Relatively low semiconductor requirements
● Fuseless design
● Line-side converter
● Motor-side converter
● Voltage actual value sensing on the motor side
Description
3.3 Power unit
SINAMICS GL150 6SL38503UM114PA0Z
Operating Instructions Rev.201910301420 MUSTER
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