Speed Setpoint - Siemens SINAMICS V90 Operating Manual

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4.2 Parameterizing
4.2.3.2

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
SPD3
0
0
0
0
1
1
1
1
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.
44
SPD2 SPD1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
Torque limit
External analog speed setpoint (analog input 1)
Fixed speed setpoint 1 (p1001)
Fixed speed setpoint 2 (p1002)
Fixed speed setpoint 3 (p1003)
Fixed speed setpoint 4 (p1004)
Fixed speed setpoint 5 (p1005)
Fixed speed setpoint 6 (p1006)
Fixed speed setpoint 7 (p1007)
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Operating Manual, 02/2015, A5E32187373-003