Speed Control With External Analog Speed Setpoint - Siemens SINAMICS V90 Operating Instructions Manual

Control functions
7.5 Speed control (S)
Refer to "DIs (Page 92)" for more information about the digital signals SPD1, SPD2 and
SPD3.
7.5.1.1

Speed control with external analog speed setpoint

In the S mode, when the digital input signals SPD1, SPD2 and SPD3 are all at low level (0),
analog voltage from the analog input 1 is used as the speed setpoint.
The analog voltage from the analog input 1 correponds to a parameterized speed value.
Default speed value is rated motor speed. The analog voltage of 10 V corresponds to the
maximum speed setpoint (V_max) and this maximum speed setpoint can be specified by
parameter p29060.
Parameter Range
p29060 6 to 210000
The relationship between the analog voltage and the speed setpoint is shown as follows:
Note
If the drive is working with external analog speed setpoint, the system continues to work
automatically after you repower on the 24 VDC power supply which is shut off unexpected
for the drive. In this case, do not touch the equipment.
202
Factory setting Unit
3000 rpm
Description
Maximum analog speed setpoint corresponding to 10 V
Operating Instructions, 09/2015, A5E36037884
SINAMICS V90, SIMOTICS S-1FL6