Inverter Control Using Digital Inputs - Siemens SINAMICS G120C Operating Instructions Manual

6.2.3

Inverter control using digital inputs

Five different methods are available for controlling the motor via digital inputs.
Table 6- 6 Two-wire control and three-wire control
Behavior of the motor
SINAMICS G120C converter
Operating Instructions, 07/2015, FW V4.7 SP3, A5E34263257B AC
Control commands
Two-wire control, method 1
1. Switching the motor on and off
(ON/OFF1).
2. Reverse the motor direction of rota-
tion.
Two-wire control, method 2 and
two-wire control, method 3
1. Switch the motor on and off
(ON/OFF1), clockwise rotation.
2. Switch the motor on and off
(ON/OFF1), counter-clockwise rota-
tion.
Three-wire control, method 1
1. Enable signal for switching the motor
on and off (OFF1).
2. Switch on the motor (ON), clockwise
rotation.
3. Switch on the motor (ON), counter-
clockwise rotation.
Three-wire control, method 2
1. Enable signal for switching the motor
on and off (OFF1).
2. Switch on motor (ON).
3. Reverse the motor direction of rota-
tion.
Advanced commissioning
6.2 Inverter control
Typical applica-
tion
Local control in
conveyor sys-
tems.
Traction drives
with control via
joystick
Traction drives
with control via
joystick
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