Three-Wire Control, Method 1 - Siemens SINAMICS G120 Operating Instructions Manual

Functions
5.2 Inverter control
5.2.5

Three-wire control, method 1

Function description
● The first control command is a permanent enable signal for starting the motor. When this
● CW rotation is activated with the positive edge of the second control command.
● CCW rotation is activated with the positive edge of the third control command.
Table 5- 9
Enable
Table 5- 10
Parameter
P0700 = 2
P0727 = 2
P0701 = 1
P0702 = 2
P0703 = 12
90
enable signal is canceled, the motor stops.
Figure 5-5 Three-wire control using digital inputs, method 1
Function table
Motor ON /
signal CW
0 Not
relevant
1 0→1
1 0
1 0
1 1
Parameterizing the function
Description
Controls the motor using the digital inputs of the inverter
Three-wire control, method 1
The enable signal to power-up the motor is issued with digital input 0
Further options:
The enable signal can be issued with any other digital input, e.g. with digital input 3
via P0704 = 1
CW rotation is activated with digital input 1
Further options:
CW rotation can be activated with any other digital input, e.g. with digital input 3 via
P0704 = 2
CCW rotation is activated with digital input 2
Further options:
CCW rotation can be activated with any other digital input, e.g. with digital input 3
via P0704 = 12
Motor ON / Function
CCW
Not OFF1: The motor decelerates to a standstill
relevant
0 The motor accelerates to the setpoint
0→1 The motor accelerates to the inverted setpoint
0 No effect on the direction of rotation.
1 OFF1: The motor decelerates to a standstill
CU240S and CU240E Control Units, FW 3.2
Operating Instructions, 03/2009, A5E02440075B AA