Siemens SINUMERIK 840D sl Function Manual page 461

(840Di)
The velocity filters of the SIMODRIVE 611 universal/ E and POSMO SI, CD, CA drives
provide an additional means of damping:
• Parameter 1502: (time constant for speed setpoint filter 1)
• Parameter 1503: (time constant for speed setpoint filter 2)
Every damping measure implemented contributes to increasing the overall time constant of
the control loop!
You will find a complete description of the velocity feedforward control in:
References:
/FB2/ Functions Manual Extended Functions, Compensations (K3), Following Error
Compensation (Feedforward Control)
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
CAUTION
TE1: Clearance control
11.2 Clearance control
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