VLT
®
5000 Series
Description of choice:
Select a value that equals the nameplate
data on the motor.
Enter the value in Ampere.
NB!:
It is important to enter the correct value, since
this forms part of the VVC
plus
control feature.
NB!:
If the setting in parameter 102-109 is changed,
the parameters 110-118 will return to factory
setting. If using special motor characteristics a
change in parameter 102-109 affects parameter 422.
106 Rated motor speed
(MOTOR NOM. SPEED)
Value:
100 - 60000 rpm (RPM)
[100 - 60000]
Depends on the choice of motor.
Function:
This is where the value is selected that corresponds
to the rated motor speed n
M,N
, which can be
seen from the nameplate data.
Description of choice:
The rated motor speed n
M,N
is used i.a. for calculating
the optimal slip compensation.
NB!:
It is important to enter the correct value,
since this forms part of the VVC
plus
control
feature. The max. value equals f
M,N
x
60. Set f
M,N
in parameter 104.
NB!:
If the setting in parameter 102-109 is changed,
the parameters 110-118 will return to factory
setting. If using special motor characteristics a
change in parameter 102-109 affects parameter 422.
107 Automatic motor adaptation, AMA
(AUTO MOTOR ADAPT)
Value:
✭Adaptation off (OFF)
[0]
Adaptation on, R
S
and X
S
(ENABLE (RS,XS))
[1]
Adaptation on, R
S
(ENABLE (RS))
[2]
Function:
If this function is used, the frequency converter
automatically sets the necessary control parameters
(parameters 108/109) with the motor stationary.
Automatic motor adaptation ensures optimum
use of the motor.
For the best possible adaptation of the frequency
converter, it is recommended to run AMA
on a cold motor.
The AMA function is activated by pressing the
[START] key after selecting [1] or [2].
See also section Automatic motor adaptation.
The section Automatic motor adaption, AMA, via
VLT software dialog shows how automatic motor
adaptation can be activated by means of VLT Software
Dialog. After a normal sequence, the display will read
"ALARM 21". Press the [STOP/RESET] key. The
frequency converter is now ready for operation.
Description of choice:
Select Enable, R
S
and X
S
[1] if the frequency
converteristobeabletocarryoutautomatic
motor adaptation of both the stator resistance
R
S
and the stator reactance X
S
.
Select Optimisation on, R
S
[2] if a reduced test
is to be carried out, in which only the ohmic
resistance in the system is determined.
NB!:
It is important to set motor parameters
102-106 correctly, since these form part of
the AMA algorithm. In most applications,
correct entering of motor parameters 102-106 is
sufficient. For optimum dynamic motor adaptation,
anAMAmustbecarriedout.
Motor adaptation may take up to 10 minutes,
depending on the output of the motor in question.
NB!:
There must not be any externally generating
torque during automatic motor adaptation.
NB!:
If the setting in parameter 102-109 is changed,
the parameters 110-118 will return to factory
setting. If using special motor characteristics a
change in parameter 102-109 affects parameter 422.
108 Stator resistor (STATOR RESIST)
Value:
✭Depends on the choice of motor
Function:
After setting motor data in parameters 102-106, a
number of adjustments of various parameters are
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A9.02 - VLT is a registered Danfoss trademark
106