Rockwell Automation 1395 Digital DC Drive FRN 5-10.10/9.30 - Manual (Page 211)

Chapter 7
Programming Parameters
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Parameter 648 – Mop Decel 4 [MOP Decel 4]
Internal units : Seconds x 10
Programming Terminal units: Seconds
Minimum Value: 0.1
Maximum Value: 6553.5
Default Value: 0.1
Description: This parameter determines the deceleration rate of the
MOP generated velocity reference when Mop rate 4 has been selected
in the logic command word. The units are in seconds to decelerate
from base speed to zero speed.
Parameter 649 – Mop Max Speed [MOP Max Speed]
Internal units : 4096 = 1000h = 1 pu = base motor speed
Programming Terminal units: RPM
Minimum Value: 0
Maximum Value: +6 x base speed
Default Value: base speed
Description: This parameter will limit the maximum MOP speed that
can be reached. The MOP generated reference velocity will always
be less than or equal to this number. The MOP reference speed will
also be limited to values less than or equal to Forward Speed Limit
(Parameter 608), or Reverse Speed Limit (Parameter 607) depending
on the selected MOP direction.
Parameter 650 – Mop Min Speed [MOP Min Speed]
Internal units : 4096 = 1000h = 1 pu = base motor speed
Programming Terminal units: RPM
Minimum Value: 0
Maximum Value: +6 x base speed
Default Value: 0
Description: This parameter will determine the minimum MOP speed
that can be reached using the MOP decrease in the logic command.
This is also the speed setpoint used when a Start function is executed
with the MOP velocity reference selected in the logic control word.
Parameter 651 – Accel Time [Accel Time]
Internal units : seconds x 10
Programming Terminal units: Seconds
Minimum Value: 0.1
Maximum Value: 6553.5
Default Value: 10.0
Description: This parameter determines the acceleration rate of the
velocity reference selected. Units are measured in seconds to
accelerate from 0 to base speed. The acceleration ramp applies to
speed changes away from zero speed in either the forward or reverse
direction. The velocity ramp function can be bypassed by setting bit
5 to 1 in the logic command word.