Table 6-2 Commands for switching the motor on and off
ON
Enable opera‐
tion
The converter switches the motor on.
OFF3
1. The converter brakes the motor.
2. The converter switches off the motor once it comes to a standstill.
The converter identifies that the motor is at a standstill when at least one of the following
conditions is satisfied:
● The speed actual value falls below the threshold in p1226, and the time started in
p1228 has expired.
● The speed setpoint falls below the threshold in p1226, and the time subsequently
started in p1227 has expired.
OFF2
Inhibit opera‐
tion
The converter switches off the motor immediately without first braking it.
Parameters
Parameter Description Factory setting
r0046.0…31 CO/BO: Missing enable signals -
p0857 Power unit monitoring time 10000 ms
p0858[C] BI: Unconditionally close holding brake 0
p0860 BI: Line contactor feedback signal 863.1
p0861 Line contactor monitoring time 100 ms
p1226[D] Speed threshold for standstill detection 20 rpm
p1227 Standstill detection monitoring time 300 s
p1228 Pulse suppression delay time 0.01 s
For additional information on parameters, please refer to the parameter list.
Parameters (Page 349)
6.2.2 Adapt the default setting of the terminal strips
Overview
In the converter, the input and output signals are interconnected with specific converter
functions using special parameters. The following parameters are available to interconnect
signals:
● Binectors BI and BO are parameters to interconnect binary signals.
● Connectors CI and CO are parameters to interconnect analog signals.
The following chapters describe how you adapt the function of individual converter inputs and
outputs using binectors and connectors.
Advanced commissioning
6.2 Drive control
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 129
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