Danfoss VLT HVAC Basic Drive FC 100 Series Programming Manual page 37

Parameters
1-23 Motor Frequency
Range: Function:
Size [ 20 - Select the motor frequency value from the
related 400 Hz] motor nameplate data. For 87 Hz
*
operation with 230/400 V motors, set the
nameplate data for 230 V/50 Hz. Adapt
4-14 Motor Speed High Limit [Hz] and
3-03 Maximum Reference to the 87 Hz
application.
NOTE!
This parameter cannot be adjusted while the motor is
running.
1-24 Motor Current
Range: Function:
Size related [ 0.01 - 26.0 Enter the nominal motor current
*
A] value from the motor nameplate
data. This data is used for calculating
motor torque, motor thermal
protection, etc.
NOTE!
This parameter cannot be adjusted while the motor is
running.
1-25 Motor Nominal Speed
Range: Function:
Size related [100 - 60000 Enter the nominal motor speed
*
RPM] value from the motor nameplate
data. This data is used for
calculating automatic motor
compensations.
NOTE!
This parameter cannot be adjusted while the motor is
running.
1-26 Motor Cont. Rated Torque
Range:
Size related [0.1 - 10000.0
*
Nm]
NOTE!
Changing this parameter will affect settings of other
parameters.
®
VLT HVAC Basic Drive Programming Guide
Function:
This parameter is available only
when 1-10 Motor Construction is
set to [1] PM, non-salient SPM.
®
MG18B222 - VLT is a registered Danfoss trademark
1-29 Automatic Motor Adaption (AMA)
Option: Function:
The AMA function optimizes dynamic motor
performance by automatically optimizing the
advanced motor 1-30 Stator Resistance (Rs) to
1-35 Main Reactance (Xh) while the motor is
stationary.
[0] Off No function
[1] Enable Performs AMA of the stator resistance R
Complete
stator leakage reactance X
AMA reactance X
h
NOTE!
Please note that terminal 27 Digital Input
(5-12 Terminal 27 Digital Input) has coast
inverse as default setting. This means
that AMA cannot be performed if there is
no 24 V to terminal 27; therefore,
connect terminal 12 to terminal 27.
[2] Enable Performs a reduced AMA of the stator
Reduced resistance R
s
AMA option if an LC filter is used between the
adjustable frequency drive and the motor.
NOTE!
When 1-10 Motor Construction is set to [1] PM, non-salient
SPM, the only option available is [2] Enable Reduced AMA.
Activate the AMA function by pressing [Hand on] after
selecting [1] or [2]. After a normal sequence, the display
will read: "Press [OK] to finish AMA". After pressing the
[OK] key, the adjustable frequency drive is ready for
operation.
NOTE!
•
For the best adaptation of the adjustable
frequency drive, run AMA on a cold motor.
•
AMA cannot be performed while the motor is
running
•
AMA can not be performed on a motor with a
bigger power rating than the adjustable
frequency drive, e.g., when a 7.5 hp [5.5 kW]
motor is connected to a 5 hp [4 kW] adjustable
frequency drive.
NOTE!
Avoid generating external torque during AMA.
, the
S
and the main
1
.
in the system only. Select this
3-9
3 3