Rockwell Automation 1397 DC Drive Firmware 2.xx User Manual
Page 155
5–45
Programming Parameters
Publication 1397-5.0 — June, 2001
FEATURE SELECT
[Trim Mode Type] — P.117
Selects the type of trim mode to be used by
the drive:
D No Trim
D Incremental
D Proportional — Allows multiple drive
sections with a common reference to
operate and ramp at different values.
Display/Drive Units:
Numeric/Text
Parameter Range:
0 = No Trim
1 = Incremental
2 = Proportional
Parameter Type:
Tunable
Group:
Feature Select
Factory Default:
0
Minimum Value:
0
Maximum Value:
2
Proportional is a type of draw. By using draw, one section can operate 10% faster than an upstream section. When a ramp occurs on the
common reference, the two sections will support the 10% draw throughout the ramp. [S-Curve Rounding] will interfere with the [Accel Time]
and the [Decel Time] so that the draw will not be constant. Therefore, it is recommended that [S-Curve Rounding] be set to 0% if [Trim Mode
Type] is set to Proportional. Incremental trim is not affected by this limitation.
This parameter also affects how the acceleration and deceleration times are interpreted.
[Trim Range] — P.118
Uses the selected trim reference signal to
generate draw percentage. Determines how
much the trim signal will affect the drive
reference.
Display/Drive Units:
%
Parameter Type:
Tunable
Group:
Feature Select
Factory Default:
0%
Minimum Value:
0%
Maximum Value:
100%
[Trim Ref Source] — P.119
Trim reference source selection.
Display/Drive Units:
Numeric/Text
Parameter Range:
0 = Register
1 = Anlg In 1
2 = Anlg In 2
3 = Anlg In 3
4 = Anlg In 4
5 = Frequency In
6 = Adapter 1
7 = Adapter 2
8 = Adapter 3
9 = Adapter 4
10 = Adapter 5
11 = Adapter 6
Parameter Type:
Tunable
Group:
Feature Select
Factory Default:
0
Minimum Value:
0
Maximum Value:
11