Siemens SINAMICS G120C Operating Instructions Manual page 286

Advanced commissioning
8.18 Setpoint processing
Number
p1091[D]
p1092[D]
p1093[D]
p1094[D]
p1098[C]
r1099
p1101
p1106
r1112
r1114
r1119
r1170
Note
In order that a stationary motor – after all of the enable signals have been switched on, can
operate at the minimum
speed/minimum velocity once all of the enable signals are available, the direction must be
entered using one of the
following options:
- direction input via small setpoint.
- direction input by inhibiting the negative or positive direction (p1110, p1111).
NOTICE
Incorrect direction of motor rotation if the parameterization is not suitable
If you are using an analog input as speed setpoint source, then for a setpoint = 0 V, noise
voltages can be superimposed on the analog input signal. After the on command, the motor
accelerates up to the minimum frequency in the direction of the random polarity of the noise
voltage. A motor rotating in the wrong direction can cause significant material damage to the
machine or system.
• Inhibit the motor direction of rotation that is not permissible.
284
Name
Skip speed 1
Skip speed 2
Skip speed 3
Skip speed 4
CI: Skip speed scaling
CO/BO: Skip frequency band of status word
Skip speed bandwidth
CI: Minimum speed signal source
CO: Speed setpoint according to minimum limit
CO: Setpoint after direction limiting
CO: Ramp-function generator setpoint at the input
CO: Speed controller setpoint sum
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
Factory setting
0 rpm
0 rpm
0 rpm
0 rpm
1
-
0 rpm
0
- rpm
- rpm
- rpm
- rpm
SINAMICS G120C Converters