Advanced commissioning
7.2 Sequence control when switching the motor on and off
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257324B AF
95
Function description
Figure 7-3
Sequence control of the inverter when the motor is switched on and off
Inverter states S1 … S5c are defined in the PROFIdrive profile. The sequence control
defines the transition from one state to another.
Table 7- 1
Inverter states
The motor is switched off
The motor is switched on
Current does not flow in the motor and the motor does not
generate any torque
Current flows in the motor and the motor generates a torque
S1
The inverter waits for a new ON command.
The ON command is currently active. You must
activate the ON command again in order that the
inverter exits the state.
S4
The motor is switched on.
S2
The inverter waits for a new command to switch
on the motor.
S5a,
S5c
The motor is still switched on. The inverter brakes
the motor with the ramp-down time of the ramp-
function generator.
S3
The inverter waits for "Enable operation". The
"Enable operation" command is always active in
the inverter factory setting.
S5b
The motor is still switched on. The inverter brakes
the motor with the OFF3 ramp-down time.