Siemens SINAMICS G120P, Operating Instructions Manual

Page: 337 / 496

Functions
7.2 Inverter control
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
337
Five different methods are available for controlling the motor via digital inputs.
Table 7- 1 Two-wire control and three-wire control
Behavior of the motor
Control commands Typical applica-
tion
Two-wire control, method 1
1.
Switch the motor on and off
(ON/OFF1).
2. Reverse the motor direction of rota-
tion.
Local control in
conveyor sys-
tems.
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.
Traction drives
with control via
joystick
Three-wire control, method 1
1.
Enable signal for switching the motor
on and off (OFF1).
2. Switch the motor on (ON), clockwise
rotation.
3. Switch the motor on (ON), counter-
clockwise rotation.
Traction drives
with control via
joystick
Three-wire control, method 2
1.
Enable signal for switching the motor
on and off (OFF1).
2. Switch the motor on (ON).
3. Reverse the motor direction of rota-
tion.
-
Note
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 350).