Siemens SINAMICS G120XA - Setting the Deadband

Procedure
1. Set the DIP switch for analog input 0 on the Control Unit to current input ("I").
,8
2. set p0756[0] = 3
You have defined analog input 0 as a current input with wire-break monitoring.
3. Set p0757[0] = 6.0 (x1)
4. Set p0758[0] = -100.0 (y1)
5. Set p0759[0] = 12.0 (x2)
6. Set p0760[0] = 100.0 (y2)
7. Set p0761[0] = 6
An input current < 6 mA results in fault F03505.
The characteristic for the application example is set.
❒
Parameters
Parameter Description Factory setting
p0757[0…1] CU analog inputs characteristic value x1 0
p0758[0…1] CU analog inputs characteristic value y1 0%
p0759[0…1] CU analog inputs characteristic value x2 10
p0760[0…1] CU analog inputs characteristic value y2 100%
p0761[0…1] CU analog inputs wire-break monitoring, response
threshold
2
6.2.2.6 Setting the deadband
Function description
'HDGEDQG'HDGEDQG
9P$

9P$

With the control enabled, electromagnetic interference on the signal cable can cause the motor
to slowly rotate in one direction in spite of a speed setpoint = 0.
The deadband acts on the zero crossover of the analog input characteristic. Internally, the
converter sets its speed setpoint = 0, even if the signal at the analog input terminals is slightly
positive or negative. This prevents the converter from rotating the motor when the speed
setpoint = 0.
Advanced commissioning
6.2 Drive control
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 143