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Programming Your Application
590+ Series DC Digital Converter
PID
Parameter
Tag
Range
O/P SCALER (TRIM)
407
-3.0000 to 3.0000
(O/P SCALER(TRIM))
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.
FILTER T.C.
403
0.000 to 10.000 s
A first-order filter for removing high frequency noise from the PID output. When set to
0.000 the filter is removed. The high frequency lift of the transfer function is determined by
the ratio k of the Derivative Time Const (Td) over the Filter Time Constant (Tf) - typically
4 of 5.
MODE
473
0 to 4
This determines the shape of the proportional gain profile. The higher the setting, the
steeper the curve of the profiled gain.
For Mode = 0, Profiled Gain = constant = P.
For Mode = 1, Profiled Gain = A * (diameter - min diameter) + B.
For Mode = 2, Profiled Gain = A * (diameter - min diameter)^2 + B.
For Mode = 3, Profiled Gain = A * (diameter - min diameter)^3 + B.
For Mode = 4, Profiled Gain = A * (diameter - min diameter)^4 + B.
MIN PROFILE GAIN
474
0.00 to 100.00 %
This expresses the minimum gain required at minimum diameter (core) as a percentage of
the (maximum) P gain at full diameter (100%), when MODE > 0.
PROFILED GAIN
475
xxxx.x
The proportional gain after profiling by a profiler block which varies the gain versus
diameter. This is primarily to be used with Speed Profiled Winders for compensation
against varying diameter and therefore inertia.
x
When MODE is not ZERO (see above) this overrides the P gain above.
x
When MODE = 0, then PROFILED GAIN = PROP. GAIN.