20-72 PID Output Change
Range: Function:
0.10 N/
A*
[0.01 - 0.50 N/A] This parameter sets the magnitude of step change during autotuning.
The value is a percentage of full speed. I.e. if maximum output frequency
inpar.4-13
Motor Speed High Limit [RPM]/par.4-14 Motor Speed High
Limit [Hz] is set to 50Hz, 0.10 is 10% of 50Hz, which is 5Hz. This parameter
should be set to a value resulting in feedback changes of between 10%
and 20% for best tuning accuracy.
20-73 Minimum Feedback Level
Range: Function:
-999999.
000
Proc-
essCtrlU-
nit*
[-999999.999 - par. 20-74
ProcessCtrlUnit]
The minimum allowable feedback level should be entered here in User
units as defined in par.20-12
Reference/Feedback Unit. If the level falls
below par.20-73
Minimum Feedback Level, autotuning is aborted and an
error message will appear on the keypad.
20-74 Maximum Feedback Level
Range: Function:
999999.
000
Proc-
essCtrlU-
nit*
[par. 20-73 - 999999.999
ProcessCtrlUnit]
The maximum allowable feedback level should be entered here in User
units as defined in par.20-12
Reference/Feedback Unit. If the level rises
above par.20-74
Maximum Feedback Level, autotuning is aborted and an
error message will appear on the keypad.
20-79 PID Autotuning
Option: Function:
This parameter starts the PID autotuning sequence. Once the autotuning
has successfully completed and the settings have been accepted or re-
jected by the user, by pressing [OK] or [Cancel] buttons on the keypad at
the end of tuning, this parameter is reset to [0] Disabled.
[0] * Disabled
[1] Enabled
Parameter Description
TR200 Programming Guide 195
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