Siemens SINAMICS G220 - Manually Setting the Controller Parameters of the PID Technology Controller

14.13.2 Manually setting the controller parameters of the PID technology controller
Overview
The controller parameters K
P
, T
I
and T
d
of the PID technology controller are adjustable.
Requirement
U/f control or closed-loop speed control is set.
Procedure
Proceed as follows to set the controller parameters K
P
, T
I
and T
d
:
1. Temporarily set the ramp-up and ramp-down times of the ramp-function generator (p2257
and p2258) to zero.
2. Enter a setpoint step and monitor the associated actual value.
The slower the response of the process to be controlled, the longer you must monitor the
controller response. Under certain circumstances (e.g. for a temperature control), you need
to wait several minutes until you can evaluate the controller response.
W
Optimum controller response for applications that do not permit
any overshoot.
The actual value approaches the setpoint without any signi󹪝cant
overshoot.
W
Optimum controller behavior for fast correction and quick com‐
pensation of disturbance components.
The actual value approaches the setpoint and slightly over‐
shoots, maximum 10% of the setpoint step.
W
The actual value only slowly approaches the setpoint.
• Increase the proportional component K
P
(p2280) and reduce
the integration time T
I
(p2285).
W
The actual value only slowly approaches the setpoint with slight
oscillation.
• Increase the proportional component K
P
(p2280) and reduce
the derivative-action time T
d
(p2274).
W
The actual value quickly approaches the setpoint, but overshoots
too much.
• Decrease the proportional component K
P
(p2280) and in‐
crease the integration time T
I
(p2285).
Functions
14.13Technology functions
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 721