Rockwell Automation 1397 DC Drive Firmware 2.xx - Manual (Page 133)

5–23 Programming Parameters
Publication 1397-5.0 — June, 2001
SETUP
[Decel Time] — P.038
Selects the time it takes to decelerate from
[Max Motor Speed] to 0. Smaller changes in
speed take proportionately less time.
If [Trim Mode Type] is set to [Proportional],
the actual time to decelerate might be
modified by [Draw Percentage Out]. Refer to
the Speed Reference Ramp Block illustration
(A.4) for more information.
Display/Drive Units: SECS
Group: Setup
Type: Tunable
Factory Default: 5.0
Minimum Value: 0.1
Maximum Value: 300.0
[Feedback Type] — P.039
Selects the type of feedback signal that is
used for the speed/voltage loop.
0 = Arm Volt
1 = DC Tach
2 = Pulse Encoder
3 = AC Tach
Display/Drive Units: Numeric
Group: Setup
Type: Configurable
Factory Default: 0 (Arm Volt)
Minimum Value: 0 (Arm Volt)
Maximum Value: 3 (AC Tach)
[Maximum Current] — P.040
The highest amount of current (positive or
negative) for a given application. This input is
used as the basis of armature current scaling.
[Maximum Current] is limited to 200% of
[Motor Arm Amps]. Display/Drive Units: % FLA
Group: Setup
Type: Configurable
Factory Default: 150
Minimum Value: 25
Maximum Value: 200
[Max Motor Speed] — P.041
[Max Motor Speed] is the highest normal
running speed of the motor. This parameter
scales the feedback device.
[Max Motor Speed] depends on several
factors:
D If there is no field weakening, the top
speed is typically the same as the motor
nameplate base speed.
D If there is field weakening, the top speed
is the same as the field weakened speed.
Top speed is typically more than the base
speed when field weakening is applied.
Display/Drive Units: RPM
Group: Setup
Type: Configurable
Factory Default: 500
Minimum Value: 5
Maximum Value: 5000
ATTENTION: The incorrect setting of this parameter can cause an
overspeed condition. This parameter must be set by a qualified person
who understands the significance of setting it. Set the value of this
parameter accurately per your application requirements. Failure to
observe this precaution could result in bodily injury.
!