590 Series DC Digital Drive Programming
D-79
PID
Parameter Tag Range
POSITIVE LIMIT 405 0.00 to 105.00 %
The upper limit of the PID algorithm.
NEGATIVE LIMIT 406 -105.00 to 0.00 %
The lower limit of the PID algorithm.
O/P SCALER (TRIM) 407 -3.0000 to 3.0000
The ratio that the limited PID output is multiplied by in order to give the final PID Output. Normally this ratio would be between 0 and 1.
INPUT 1 410 -300.00 to 300.00 %
PID setpoint input. This can be either a position/tension feedback or a reference/offset.
INPUT 2 411 -300.00 to 300.00 %
PID feedback input. This can be either a position/tension feedback or a reference/offset
RATIO 1 412 -3.0000 to 3.0000
This multiplies Input 1 by a factor (Ratio 1).
RATIO 2 413 -3.0000 to 3.0000
This multiplies Input 2 by a factor (Ratio 2).
DIVIDER 1 418 -3.0000 to 3.0000
This divides Input 1 by a factor (Divider 1).
DIVIDER 2 414 -3.0000 to 3.0000
This divides Input 2 by a factor (Divider 2).
ENABLE 408 DISABLED / ENABLED
Enables or disables the PID output.
INT. DEFEAT 409 OFF / ON
When ON, the Integral term is disabled. The block transfer function then becomes P+D only.
PID OUTPUT 417
⎯.xx %
Refer to Chapter 6: "MMI – Main Machine Interface – The MMI Menus (DIAGNOSTICS).
PID CLAMPED 416 FALSE / TRUE
Refer to Chapter 6: "MMI – Main Machine Interface – The MMI Menus (DIAGNOSTICS).
PID ERROR 415
⎯.xx %
Refer to Chapter 6: "MMI – Main Machine Interface – The MMI Menus (DIAGNOSTICS).
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