44 Unidrive M300/HS30 Quick Start Guide
Issue Number: 7
Set to the number of poles of the motor. The auto mode calculates the number of motor poles from
the settings of Pr 07 and Pr 39.
Defines the drive output mode, which can either be a voltage mode or a current mode.
Determines the boost level when Pr 41 is set to Fd, SrE or Fd.tap modes.
40 Number Of Motor Poles
RW Num US
OL
Ú
Auto (0) to 32 (16)
Ö
Auto (0)
RFC-A
41 Control Mode
RW Txt US
OL
Ú
Ur.S (0), Ur (1), Fd (2), Ur.Auto (3),
Ur.I (4), SrE (5), Fd.tap (6)
Ö
Ur.I (4)
RFC-A
Value Text Description
0 Ur.S Stator resistance and voltage offset measured at each start
1 Ur No measurements
2 Fd Fixed boost mode.
3 Ur.Auto Stator resistance and voltage offset measured at first drive enable
4 Ur.I Stator resistance and voltage offset measured at each power-up
5 SrE Square law characteristic
6 Fd.tap (6) Fixed boost with taper
The drive default setting is Ur I mode which means that the drive will carry out an autotune
every time the drive is powered-up and enabled. If the load is not going to be stationary
when the drive is powered-up and enabled, then one of the other modes should be
selected. Not selecting another mode could result in poor motor performance or OI.AC,
It.AC or OV trips.
42 Low Frequency Voltage Boost
RW Num US
OL
Ú
0.0 to 25.0 %
Ö
3.0 %
RFC-A
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