Danfoss 176F7300, Manual, Page: 49 / 90

VLT ® MICRO
Pr.53 Motor No-load Current (can be programmed while drive is running)
Factory Setting d40
Units 1%
Parameter value d00 - d99%
Determines the Motor No-load Current in 1% increments. The Motor Rated Current
(Pr.52) is set to 100%.
Pr.54 Torque Compensations (can be programmed while drive is running)
Factory Setting d02
Units 1%
Parameter value d00 - d10%
This parameter may be set so that the AC drive will increase its voltage output during
start-up to obtain a higher initial starting torque. The additional torque will be present
until the maximum operating frequency is attained.
CAUTION: Be careful when selecting the value for Pr.54. If the value is too high, the
motor might overheat or be damaged.
Pr.55 Slip Compensation (can be programmed while drive is running)
Factory Setting d0.0
Units 0.1 Hz
Parameter value d0.0 - d10.0
As motor load increases, the motor slip increases. This parameter may be used to
compensate for the nominal slip within a range of 0.0 - 10.0 Hz. When the output
current of the AC drive is greater than the Motor No-load Current (Pr.53), the AC drive
will adjust its output frequency according to value of Pr.55.
Pr.56 Special Output Display
Factory Setting d00
Units None
Settings d00 Display actual motor operation current
d01 Display DC Bus voltage
Displayed DC Bus voltage can be used to be the basis of input voltage, and is read-only.
Pr.57 Multi-function Indicator Output Contacts RA-RC (N.O.), RB-RC (N.C.)
Factory Setting d##.#
Units None
Settings None
This parameter programs the output contacts: RA-RC (N.O.) or RB-RC (N.C.) to indicate
the AC drive is operating at maximum rated output current.
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