Commissioning Basic Functions; Selecting The Stop Mode - Siemens SINAMICS V20 Operating Instructions Manual

Commissioning via the built-in BOP
5.6 Function commissioning
5.6.2

Commissioning basic functions

5.6.2.1

Selecting the stop mode

Functionality
Both the converter and the user have to respond to a wide range of situations and stop the
converter if necessary. Thus operating requirements as well as converter protective
functions (e.g. electrical or thermal overload), or rather man-machine protective functions,
have to be taken into account. Due to the different OFF functions (OFF1, OFF2, OFF3) the
converter can flexibly respond to the mentioned requirements. Note that after an OFF2/OFF3
command, the converter is in the state "ON inhibit". To switch the motor on again, you need
a signal low → high of the ON command.
OFF1
The OFF1 command is closely coupled to the ON command. When the ON command is
withdrawn, OFF1 is directly activated. The converter is braked by OFF1 with the ramp-down
time P1121. If the output frequency falls below the parameter value P2167 and if the time in
P2168 has expired, then the converter pulses are cancelled.
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SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012