Siemens SINAMICS G120 Operating Instructions Manual page 177

Table 6-2
S1
S2
S3
S4
S51
S52
The abbreviations S1 ... S5b to identify the inverter states are defined in the PROFIdrive profile.
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD
Inverter states
In this state, the inverter does not respond to the ON command. The inverter goes into this state
under the following conditions:
● ON was active when switching on the inverter.
Exception: When the automatic start function is active, ON must be active after switching on
the power supply.
● OFF2 or OFF3 is selected.
The prerequisites for switching the motor on are satisfied.
The inverter waits for "enable operation".
The motor is switched on.
The inverter brakes the motor with the ramp-down time of the ramp-function generator.
The inverter brakes the motor with the OFF3 ramp-down time.
6.2 Sequence control when switching the motor on and off
Advanced commissioning
177