Siemens Sinamics G120 CU240E Operating Instructions Manual page 84

Functions
5.2 Inverter control
Table 5- 1
Control signals
Two-wire control, method 1 (P0727=0)
Two-wire control, method 2 (P0727=0)
If CW and CCW rotation are selected simultaneously, the signal that was issued first has priority. The
signal that is received late is ignored.
Two-wire control, method 3 (P0727=1)
When CW and CCW are simultaneously selected, the motor is stopped.
Three-wire control, method 1 (P0727 = 2)
84
Comparison of the methods to control the motor using two-three wires
Description
1. Control command: Switch the
motor on or off
2. Control command: Reverses the
motor direction of rotation
1. Control command: Switch on or
switch off the motor CW rotation
2. Control command: Switch on or
switch off the motor CCW
rotation
Reversing is not possible as long as
the motor is still rotating
1. Control command: Switch on or
switch off the motor CW rotation
2. 2. Control command: Switch on
or switch off the motor CCW
rotation
Reversing is possible at any time
Frequency inverter
Operating Instructions, 08.10. 2008, t.b.d.