Rockwell Automation 1397 DC Drive Firmware 2.xx - Manual (Page 205)

5–95 Programming Parameters
Publication 1397-5.0 — June, 2001
Process PI
[OCL Ref Rounding] — P.300
Specifies the amount of reference smoothing
(rounding) for the outer control loop. It is set
as a percentage of the [OCL Ramp Time].
Rounding is performed at the beginning and
end of an OCL reference change. Display/Drive Units: %
Parameter Range: 0 to 50%
Default Setting: 0%
Parameter Type: Tunable
Group: Process PI
Minimum Value: 0%
Factory Default: 0%
Maximum Value 50%
If [OCL Ref Rounding] is set to 0%, the OCL performs a linear ramp function. If set to 50%, the entire ramp time is smoothed: 50% at the
beginning of the reference change and 50% at the end.
If [OCL Ref Ramp Time] is 0.0 (ramp block bypassed), this parameter has no affect on the OCL reference signal.
Refer to the [OCL Ramp Time] block diagram for additional information.
[OCL Ref Source] — P.301
Selects the reference for the outer control
loop.
If Register is selected, the reference is
obtained from the [OCL Reference].
The I/O Expansion Kit must be installed to
use Analog In 3 (terminals 50 and 51 on the
I/O expansion board), Analog In 4 (terminals
52 and 53), or Frequency In (terminal 39, 40,
and 41).
Display/Drive Units: Numeric/Text
Parameter Range: 0 = Register
1 = Anlg In 3
2 = Anlg In 4
3 = Frequency In
4 = Adapter 1
5 = Adapter 2
6 = Adapter 3
7 = Adapter 4
8 = Adapter 5
9 = Adapter 6
Parameter Type: Configurable
Group: Process PI
Minimum Value: 0
Factory Default: 0
Maximum Value 9