Operating Instructions

Parameters

List of Parameters

1-306

SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 06/2011

Description: Displays the scaled actual value signal of the technology controller.

Dependency: Refer to: p2264, p2265, r2266, p2267, p2268, p2269, p2270, p2271

Description: Displays the error (system deviation) between the setpoint and actual value of the technology controller.

Dependency: Refer to: p2263

Description: Sets the time constant for the differentiation (D component) of the technology controller.

Note: p2274 = 0: Differentiation is disabled.

Description: Sets the proportional gain (P component) of the technology controller.

Note: p2280 = 0: The proportional gain is disabled.

Description: Sets the integral time (I component, integrating time constant) of the technology controller.

Notice: The following applies for p2251 = 0:

If the output of the technology controller lies within the range of a suppression (skip) bandwidth (p1091 ... p1094,

p1101) or below the minimum speed (p1080), the integral component of the controller is held so that the controller

temporarily works as a P controller. This is necessary in order to prevent the controller from behaving in an unstable

manner, as the ramp-function generator switches to the parameterized up and down ramps (p1120, p1121) at the

same time in order to avoid setpoint steps. This state can be exited or avoided by changing the controller setpoint or

by using the start speed (= minimum speed).

Note: When the controller output reaches the limit, the I component of the controller is held.

p2285 = 0:

The integral time is disabled and the I component of the controller is reset.

r2272 CO: Technology controller actual value scaled / Tech_ctrl act scal