Rockwell Automation PowerFlex series User Manual page 103

Parameter Name & Description
See page 3-2 for symbol descriptions
13 [Torq Red CurLim]
The armature current limit, defined as a percentage of the value
A
defined in Par 179 [Nom Mtr Arm Amps] when Par 342 [Torque
Reduction] is set to 1 "Active".
696 [Droop Percent]
Droop function gain is a percentage of the ratio between Par 45 [Max
A
Ref Speed] and the difference of Par 698 [Load Comp] – Par 41
[Current Reg In]. Therefore, when the difference between Par 698
[Load Comp] and Par 41 [Current Reg In] = 100% and Par 696 [Droop
Percent] = 100%, the speed reference correction signal is equal to Par
45 [Max Ref Speed].
697 [Droop Filter]
Droop filter time constant for the Droop function.
A
698 [Load Comp]
The load compensation signal. This value is typically equal to the
A
"master" drive's current. The load compensation signal is a
percentage of I .
dn
699 [Enable Droop]
Enables/Disables the Droop function.
A
• "Enabled" = The Droop function is enabled.
• "Disabled" = The Droop function is disabled.
Note: This parameter can be assigned to a digital input.
700 [Droop Limit]
The speed reference correction range within which the droop function
A
becomes active.
715 [Torq Limit Type]
This parameter determines the response of the drive during a current
limiting condition.
• "Torq Lim Pos" = The active positive torque limit is set by the value
A
defined in Par 7 [Current Limit] and the active negative torque limit
defined in Par 9 [Current Lim Neg].
• "Torq Lim Mtr" = With this selection three conditions are possible:
1.If the motor speed > +1% of Par 162 [Max Feedback Spd], the
active positive torque limit is defined by Par 8 [Current Lim Pos]
and the active negative torque limit is defined by Par 9 [Current
Lim Neg].
2.If the motor speed < –1% of Par 162 [Max Feedback Spd] the
active positive torque limit is defied by Par 9 [Current Lim Neg]
and the active negative torque limit is defined by Par 8 [Current
Lim Pos].
3.If –1% of Par 162 [Max Feedback Spd] < motor speed < +1% of
Par 162 [Max Feedback Spd] the active positive torque limit is
define by Par 8 [Current Lim Pos] and the active negative torque
limit is defined by Par 9 [Current Lim Neg].
38 [Fast Stop Time]
The amount of time to decelerate the drive to a complete stop and
A
disable the drive. The deceleration rate for Fast stop = [Maximum
Speed] / [Fast Stop Time]. This feature can be used when [Digital Inx
Sel] is set to 30 "Fast Stop" or when certain faults are configured for
"Quick Stop".
627 [Spd 0 Trip Delay]
The amount of time that will elapse after the drive reaches zero speed
A
before it is disabled.
Programming and Parameters
Values
Default: 100
Min/Max: 0 / 200
Units: %
Default: 0.00
Min/Max: 0.00 / 100.00
Units: %
Default: 0
Min/Max: 0 / 1000
Units: ms
Default: 0
Min/Max: + / –200
Units: %
Default: 0 = "Disabled"
Options: 0 = "Disabled"
1 = "Enabled"
Default: 1750
Min/Max: 0 / Par 45 [Max Ref Speed]
Units: RPM
Default: 0 = "Torq Lim Pos"
Options: 0 = "Torq Lim Pos"
1 = "Torq Lim Mtr"
Default: 10
Min/Max: 0 / 65535
Units: s
Default: 0
Min/Max: 0 / 40000
Units: ms
PowerFlex Digital DC Drive User Manual -
3-31
342
41,
45,
698
7,
8,
9,
162
354,
365
Publication 20P-UM001C-EN-P - July 2008