Operation mode speed controller, parameter
440 = 4
This operation mode is suited for speed controls with an analog actual value trans-
mitter (e.g. analog speedometer via analog input or HTL encoder via frequency in-
put).
The motor is accelerated or decelerated according to the control deviation.
The output frequency is limited by the Maximum frequency 419.
Minimum Frequency 418 is not limiting in mode "4-Speed". This can lead to a long
time operation of the motor in the current injection (current frequency <624
frequency) in configurations 411 and 611. Prevent an impermissible motor tempera-
ture rise through to long operation in the current injection.
The operating mode "4-speed controller" can lead to a reversal of the drive.
T
echnology
Controller
Act. Percentage
Source 478
Ref. Percentage
Channel
Ref. Percentage
Source 476
Amplification 444
P
Differential Time 618
I
Integral Time 445
+
+
-
Max. P-Component
Limitation
Max.
I-Component
06/13 Operating Instructions ACU 223
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