Two-Wire Control, Method 2 - Siemens SINAMICS G120 Operating Instructions Manual

Functions
5.2 Inverter control
5.2.3

Two-wire control, method 2

Function description
This control method uses two control commands as permanent signals.
CW and CCW rotation of the motor is started and stopped with one control command each.
To change the direction, the drive must first decelerate to 0 Hz with OFF1 before the
direction reversal signal is accepted.
Figure 5-3
Table 5- 5
Motor ON /
Table 5- 6
Parameter
P0700 = 2
P0727 = 0
P0701 = 1
P0702 = 2
88
Two-wire control using digital inputs, method 2
Function table
Motor ON /
CW CCW
0 0
0 1
1 0
1 1
Parameterizing the function
Description
Controls the motor using the digital inputs of the inverter
Two-wire control, method 1 or 2
CW rotation is activated with digital input 0
Further options:
CW rotation can be activated with any other digital input, e.g. with digital input 3 via
P0704 = 1
CCW rotation is activated with digital input 1
Further options:
CCW rotation can be activated with any other digital input, e.g. with digital input 3 via
P0704 = 2
Function
OFF1: The motor decelerates to a standstill
The motor accelerates to the inverted setpoint
The motor accelerates to the setpoint
The first active signal has priority; the second signal is ignored.
Operating Instructions, 03/2009, A5E02440075B AA
CU240S and CU240E Control Units, FW 3.2