Inverter Control Using Digital Inputs - Siemens SINAMICS G120 Operating Instructions Manual

Advanced commissioning
6.2 Inverter control
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
Reversing is disabled in the factory setting. To use the "Reverse" function, you must release
the negative rotational direction, see Section Enable direction of rotation (Page 213).
166
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.
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB
Typical applica-
tion
Local control in
conveyor sys-
tems.
Traction drives
with control via
joystick
Traction drives
with control via
joystick
-
Converter with CU230P-2 Control Units