Siemens SINAMICS V90 - Speed Setpoint

Task navigation
SINAMICS V-ASSISTANT Online Help
66 Operating Manual, 04/2017, A5E36618042-003
4.3.3.2
Speed setpoint
Source of speed setpoint
Eight sources in total are available for speed setpoint. You can select one of them with the
combination of digital input signals SPD1, SPD2 and SPD3:
Digital signal
Torque limit
SPD3
SPD2
SPD1
0
0
0
External analog speed setpoint (analog input 1)
0
0
1
Fixed speed setpoint 1 (p1001)
0
1
0
Fixed speed setpoint 2 (p1002)
0
1
1
Fixed speed setpoint 3 (p1003)
1
0
0
Fixed speed setpoint 4 (p1004)
1 0 1 Fixed speed setpoint 5 (p1005)
1
1
0
Fixed speed setpoint 6 (p1006)
1
1
1
Fixed speed setpoint 7 (p1007)
Ramp-function generator
The ramp-function generator is used to limit acceleration in the event of abrupt setpoint
changes and thus helps prevent load surges during drive operation.
The ramp-up time p1120 and ramp-down time p1121 can be used to set acceleration and
deceleration ramps separately. This allows a smoothed transition in the event of setpoint
changes.