Operating instructions

VLT
®
5000 FLUX
Programming
154 Main Reactance
(MAIN REACTANCE)
Value:
Ohm
✭ Depends on unit
Function:
Set the main reactance of the motor.
Description of choice:
X
h
can be set as follows:
1. Automatic Motor Adaptation, where the
frequency converter measures on the motor
to determine the value.
2. The motor supplier states the value.
3. The factory setting of X
h
, selected by the
frequency converter itself on the basis of the
motor nameplate data, is used.
156 Pole Number (POLE NUMBER)
Value:
Depends on motor type
Value 2 - 100 poles
✭ 4-pole motor
Function:
Set the pole number of the motor
Description of choice:
Poles ~n
n
@50Hz ~n
n
@ 60Hz
2 2700 - 2880 3250 - 3460
4 1350 - 1450 1625 - 1730
6 700 - 960 840 - 1153
The above table shows the normal speed range
for various motor types. Motors designed for other
frequencies must be defined sep
arately.
158 Iron loss Resistance
(IRONLOSS RES.)
Value:
1 -10.000
✭ 10.000
Function:
Set the equivalents of the R
Fe
to compensate
for iron losses in the motor.
Description of choice:
The function is switched off when the value
10.000 is chosen.
The Iron loss resistance most be less than:
R
Fe
<P
0
/I
0
2
161 Minimum Intertia
(MINIMUM INERTIA)
Value:
[kgm
2
]
✭ Depends on unit
Function:
Set the minimum moment of Inertia of the
mechanical system.
Description of choice:
The frequency converter calculates the proportional
gain for the speed controller based on the mean
value of minimum and maximum inertia.
Converting factors:
To convert
from
To Multiplication Factor
ft lbs s
2
kgm
2
1.356
lbf in
2
kgm
2
2.926*10
-4
kgcm
2
kgm
2
*10
-4
GD
2
kgm
2
0.25
162 Maximum Inertia
(MAXIMUM INERTIA)
Value:
[kgm
2
]
✭ Depends on the unit
Function:
Set the maximum moment of Inertia of the
mechanical system.
Description of choice:
See parameter 161.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
MG.55.A7.02 - VLT is a registered Danfoss trademark
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