External Safety Components; Protection And Monitoring Functions Of Internal Components; Protection And Monitoring Functions For External Components - Siemens SINAMICS SM150 Operating Instructions Manual

Description
3.2 Safety concept
3.2.2

External safety components

The following external components for the safety concept are provided:
● Circuit breaker
● Input-side transformer
3.2.3

Protection and monitoring functions of internal components

The internal components of the drive have the following protection and monitoring functions:
● Crowbar
● Device protection using 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
3.2.4

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.
28
More detailed information is provided in Chapter Circuit-breaker (provided by the customer)
(Page 38).
The transformer on the input side must be configured in such a way that the maximum short-
circuit current is not exceeded. Information on this is provided in the technical data sheet of
the transformer.
– Current monitoring
– DC-link monitoring
– Output voltage monitoring
– Thermal monitoring of the power unit
– Precharge monitoring
– Insulation monitoring
– Supply voltage monitoring
– GSV monitoring
– Circuit-breaker monitoring
– Re-cooling unit monitoring
unit
SINAMICS SM150 6SL3845-7NN42-2AA3 HBIS Shigang WRM NTM
Operating Instructions Rev.202003051222 3005356504