Position Loop - Parker AC890 Product Manual

POSITION LOOP

SETUP::MOTOR CONTROL::POSITION LOOP
This block controls the position of the motor. It compares a position demand, with position feedback, and generates a speed
demand dependent on the difference. Note that the function blocks Move to Master, Phase Inch, Phase Move, Phase Move
Abs, etc. will not work if this block is not enabled (PREF 3879).
Parameter Descriptions
ENABLE
Set True to enable the position loop to operate.
PROP GAIN
The position loop proportional gain.
INTEGRAL TIME
The position loop integral time constant.
INTEGRAL DEFEAT
When TRUE, this parameter sets the position loop integral to 0.0 and prevents it from operating.
LIMIT
This parameter sets a symmetric clamp as a percentage of maximum speed, to limit the maximum position loop output of the
block (PID Output).
POSITION DEMAND
This diagnostic shows the input position demand.
TOTAL OFFSET
This diagnostic shows the total position offset from the phase control blocks, Phase Inch, Phase Move, Phase Offset & Phase
890SD Standalone Drive - Frames G, H & J
PREF: 121.07
PREF: 121.01
PREF: 121.02
PREF: 121.03
PREF: 121.11
PREF: 121.15
PREF: 121.14
Default: FALSE
Default: 10.0
Default: 500.0 ms
Default: FALSE
Default: 10.00 %
Default: —.xx deg
Default: —.xxxx
Range: FALSE / TRUE
Range:
Range:
Range:
Range: 0.00 to 300.00 %
Range: —.xx deg
Range: —.xxxx
D-111
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