Programming and Parameters 3-25
PowerFlex 4M Adjustable Frequency Drive FRN 1.xx - 2.xx User Manual
Publication 22F-UM001D-EN-E
Advanced Program Group (continued)
A436 [Compensation]
Enables/disables correction options that may improve problems with motor instability.
Options 0 “D
isabled”
1 “E
lectrical” (Default) Some drive/motor combinations have inherent instabilities
which are exhibited as non-sinusodial motor currents. This
setting attempts to correct this condition.
2 “Me
chanical” Some motor/load combinations have mechanical resonances
which can be excited by the drive current regulator. This
setting slows down the current regulator response and
attempts to correct this condition.
3 “B
oth”
A437 [Slip Hertz @ FLA] Related Parameter(s): P103
Compensates for the inherent slip in an induction motor. This frequency is added to the commanded
output frequency based on motor current.
Values Default 2.0 Hz
Min/Max: 0.0/ 10.0 Hz
Display: 0.1 Hz
A438 [Process Time Lo] Related Parameter(s): d010, P104
Scales the time value when the drive is running at P104 [Minimum Freq]. When set to a value other
than zero,
d010 [Process Display] indicates the duration of the process.
Values Default 0.00
Min/Max: 0.00/ 99.99
Display: 0.01
A439 [Process Time Hi] Related Parameter(s): d010, P105
Scales the time value when the drive is running at P105 [Maximum Freq]. When set to a value other
than zero,
d010 [Process Display] indicates the duration of the process.
Values Default 0.00
Min/Max: 0.00/ 99.99
Display: 0.01
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