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FC 300 Instruction Manual
1-24 Motor Current
Range:
Motor type dependent.
Function:
The value should equal the nameplate data on
the connected motor. Data is used for calculating
torque, motor protection, etc.
NOTE
Changing the value in this parameter
affects the setting of other parameters.
Par. 1-24 cannot be changed while
the motor is running.
1-25 Motor Nominal Speed
Range:
100. - 60000. RPM
Function:
The value should equal the name plate data
on the connected motor. The data is used for
calculating motor compensations.
1-29 Automatic Motor Adaptation (AMA)
Option:
*
OFF
Enable complete AMA
Enable reduced AMA
Function:
If the AMA function is used, the adjustable frequency
drive automatically sets the necessary motor
parameters (par. 1-30 to par. 1-35) with the
motor stationary. AMA ensures optimum use of the
motor. For the best adaptation of the adjustable
frequency drive, run AMA on a cold motor.
Select Enable complete AMA, if the adjustable
frequency drive is to carry out AMA of the stator
resistance R
, the rotor resistance R
S
leakage reactance x
, the rotor leakage reactance
1
X
and the main reactance X
2
Select Reduced AMA if a reduced test is to be
carried out, in which only the stator resistance
R
in the system is determined.
s
AMA cannot be carried out while the motor is running.
AMA cannot be carried out on permanent
magnet motors.
*
default setting
( )
display text
How to Program
*
ExpressionLimitRPM
[0]
[1]
[2]
, the stator
r
.
h
[ ]
value for use in communication via serial communication port
MG.33.A4.22 - VLT is a registered Danfoss trademark
Activate the AMA function by pressing [Hand on]
after selecting [1] or [2]. See also section Automatic
Motor Adaptation. After a normal sequence, the
display will read, "Press [OK] to finish AMA." After
pressing the [OK] key, the adjustable frequency
drive is now ready for operation.
NOTE
It is important to set motor par. 1-2*
correctly, since these form part of the
AMA algorithm. For optimum dynamic
motor performance, an AMA must be carried
out. It may take up to 10 min, depending on
the power rating of the motor.
NOTE
Avoid externally generating torque
during AMA.
NOTE
If one of the settings in par. 1-2*
is changed, par. 1-30 to 1-39 will
return to default setting.
3-02 Minimum Reference
Option:
-100000.000 - MaxReference (par. 3-03)
Function:
The Minimum reference is the minimum
value obtained by the sum of all references.
Minimum reference is only active if Min -
Max [0] is set in par. 3-00.
Speed control, closed loop: RPM Torque control
Speed feedback: Nm
3-03 Maximum Reference
Option:
MinReference (par. 3-02) - 100000.000
Function:
The Maximum reference is the highest value
obtained by the sum of all references. The unit
follows the choice of configuration in par. 1-00.
Speed control, closed loop: RPM
Torque control, speed feedback: Nm
*
0.000
*
1500.000
43
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