Danfoss VLT 8000 AQUA series Operating Instructions Manual page 107

124 Stator reactance
(STATOR REACT.)
Value:
depends on the choice of motor
Function:
After setting motor data in parameters 102-106, a
number of adjustments of various parameters are
made automatically, including the stator resistance
X . The shaft performance can be improved by
S
fine-tuning R and X , see procedure below.
S S
Description of choice:
X can be set as follows:
S
1. Automatic motor adaptation, where the frequency
converter actually tests the motor to determine this
value. All compensations are reset to 100%.
2. The values are stated by the motor supplier.
3. These values are obtained by means of
manual measurements:
- X can be calculated by connecting a motor to
S
mains and measuring the phase-to-phase voltage
U as well as the idling current I.
L
Alternatively, these values can be recorded
during operation in idle running state at the
rated motor frequency f
(par. 115) = 0% and load compensation at
high speed (par. 114) = 100%.
4. The factory settings of X
frequency converter itself on the basis of the
motor nameplate data, are used.
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.83.A2.02 - VLT is a registered Danfoss trademark
, slip compensation
M,N
, selected by the
S
®
VLT 8000 AQUA
107