Leroy-Somer DIGIDRIVE SK, Getting Started Manual

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Digidrive SK Getting Started Guide
33
Issue Number: d www.leroy-somer.com
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0 : No autotune
1 : Non-rotating static autotune
2 : Rotating autotune
Enter the motor rated frequency (taken from the motor name plate).
Defines the voltage to frequency ratio applied to the motor.
Auto : Automatically calculates the number of motor poles from the settings of Pr 07
and Pr 39
2P : Set for a 2 pole motor
4P : Set for a 4 pole motor
6P : Set for a 6 pole motor
8P : Set for an 8 pole motor
Ur S : Stator resistance is measured each time the drive is enabled and run
Ur : No measurement is taken
Fd : Fixed boost
Ur A : Stator resistance is measured the first time the drive is enabled and run
Ur I : Stator resistance measured at each power-up when the drive is enabled and run
SrE : Square law characteristic
In all Ur modes, the drive operates in open loop vector mode.
No Function Range Defaults Type
38
Autotune 0 to 2 0 RW
When a rotating autotune is selected, the drive will accelerate the motor up to
2
/
3
maximum speed in Pr 02 .
WARNING
The motor must be at a standstill before a non-rotating autotune is initiated.
NOTE
The motor must be at a standstill and unloaded before a rotating autotune is initiated.
NOTE
Once a rotating autotune has been initiated (Pr 38 = 2), it must be completed before the
drive will operate normally. If the rotating autotune is not completed (through the drive
being disabled or a trip occurring), the drive will only run at the autotune speed (
2
/
3
rated
speed reference).
NOTE
No Function Range Defaults Type
39
Motor rated frequency 0.0 to 1500.0 Hz Eur: 50.0, USA: 60.0 RW
No Function Range Defaults Type
40
Number of motor poles Auto, 2P, 4P, 6P, 8P Auto RW
No Function Range Defaults Type
41
Voltage mode select Ur S, Ur, Fd, Ur A, Ur l, SrE Eur: Ur I, USA: Fd RW
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.
NOTE