Danfoss VLT 7000 Series, Руководство пользователя

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VLT® 7000 Booster
Programming
NB!:
Changing parameters 102, 103 or 104 will
automatically reset parameters 105 and 106
to default values. If changes are made to
parameters 102, 103 or 104, go back and reset
parameters 105 and 106 to correct values.
104 Motor frequency, f
M,N
(MOTOR FREQUENCY)
Value:
✭
50 Hz (50 HZ) [50]
60 Hz (60 HZ) [60]
Function:
This is where the rated motor frequency f
M,N
is selected.
Description of choice:
Select a value that equals the nameplate data
on the motor. Furthermore, it is also possible
to set the value for motor frequency infinitely
variably in the 24-1000 Hz range.
105 Motor current, I
M,N
(MOTOR CURRENT)
(MOTOR CURRENT)
Value:
0.01 - I
VLT,MAX
A
✭
Depends on the unit
Function:
The rated motor current I
M,N
forms part of the frequency
converter calculations i.a. of torque and motor thermal
protection. Set the motor current I
VLT,N
, taking into
account the star Y or delta connected motor.
Description of choice:
Set a value that equals the nameplate data on the motor.
NB!:
It is important to enter the correct value, since
this forms part of the VVC
+
control feature.
106 Rated motor speed, n
M,N
(MOTOR NOM. SPEED)
Value:
1200 - f
M,N
x 60 (max. 60000 rpm)
✭
Depends on parameter 102 Motor power, P
M,N
Function:
This is where the value is set that corresponds
to the rated motor speed n
M,N
, which can be
seen from the nameplate data.
Description of choice:
Choose a value that corresponds to the
motor nameplate data.
NB!:
It is important to set the correct value, since
this forms part of the VVC
+
control feature.
The max. value equals f
M,N
x 60.
f
M,N
is set in parameter 104 Motor frequency, f
M,N
.
107 Automatic motor adaptation, AMA
(AUTO MOTOR ADAPT)
Value:
✭
Optimisation disable (NO AMA) [0]
Automatic adaptation (RUN AMA) [1]
Automatic adaptation with LC-filter
(RUN AMA WITH LC-FILT) [2]
Function:
Automatic motor adaptation is a test algorithm
that measures the electrical motor parameters
at motor standstill. This means that AMA itself
does not supply any torque.
AMA is useful when commissioning systems, where
the user wants to optimise the adjustment of the
frequency converter to the motor applied. This feature
is used in particular where the factory setting does
not adequately cover the motor in question.
For the best adjustment of the frequency converter, it is
recommended to carry out AMA on a cold motor.
It must be noted that repeated AMA runs may
lead to a heating of the motor that will result in
an increase of the stator resistance R
S
. However,
this is not normally critical.
NB!:
It is important to run AMA with any
motors
≥
55 kW/ 75 HP
It is possible via parameter 107 Automatic motor
adaptation , AMA to choose whether a complete
automatic motor adaptation Automatic adaptation
[1] is to be carried out, or whether reduced
automatic motor adaptation Automatic adaptation
with LC-filter [2] is to be made.
It is only possible to carry out the reduced test if a
LC-filter has been placed between the frequency
converter and the motor. If a total setting is required, the
LC-filter can be removed and, after completion of the
AMA, it can be reinstalled. In Automatic optimisation
with LC-filter [2] there is no test of motor symmetry and
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.70.A1.02 - VLT is a registered Danfoss trademark
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