Danfoss VLT 6000 HVAC Series

-
Alarms and warnings will be shown in the
display if faults occur during motor adapta-
tion.
-
AMA can only be carried out if the rated motor
current of the motor is min. 35% of the rated
output current of the frequency converter.
-
If automatic motor adaptation is to be discon-
tinued, press the [OFF/STOP] key.
NB!
AMA is not allowed on motors connected
in parallel.
Description of choice:
Select Automatic adaptation [1] if the frequency con-
verter is to carry out a complete automatic motor adap-
tation.
Select Automatic adaptation with LC-filter [2] if a LC-
filter has been placed between the frequency convert-
er and the motor.
Procedure for automatic motor adaptation:
1. Set the motor parameters in accordance with
the motor nameplate data given in parame-
ters 102-106 Nameplate data.
2. Connect 24 V DC (possibly from terminal 12)
to terminal 27 on the control card.
3. Select Automatic adaptation [1] or Automatic
adaptation with LC-filter [2] in parameter 107
Automatic motor adaptation, AMA.
4. Start up the frequency converter or connect
terminal 18 (start) to 24 V DC (possibly from
terminal 12).
5. After a normal sequence, the display reads:
AMA STOP. After a reset, the frequency con-
verter will be ready to start operation again.
If the automatic motor adaptation is to be stopped:
1. Press the [OFF/STOP] key.
If there is a fault, the display reads: ALARM 22
1. Press the [Reset] key.
2. Check for possible causes of the fault in ac-
cor-dance with the alarm message. See List
of warnings and alarms.
If there is a warning, the display reads: WARNING
39-42
1. Check for possible causes of the fault in ac-
cordance with the warning. See List of warn-
ings and alarms.
2. Press the [CHANGE DATA] key and select
"Continue" if AMA is to continue despite the
warning, or press the [OFF/STOP] key to
stop the automatic motor adaptation.
108 Start voltage of parallel motors
(MULTIM.START VOLT)
Value:
0.0 - parameter 103 Motor voltage, U
M,N
Depends on par. 103 Motor voltage, U
M,N
Function:
This parameter specifies the start-up voltage of the
permanent VT characteristics at 0 Hz for motors con-
nected in parallel.
The start-up voltage represents a supplementary volt-
age input to the motor. By increasing the start-up
voltage, motors connected in parallel receive a higher
start-up torque. This is used especially for small mo-
tors (< 4.0 kW) connected in parallel, as they have a
higher stator resistance than motors above 5.5 kW.
This function is only active if Parallel motors [1] has
been selected in parameter 101 Torque characteristics .
Description of choice:
Set the start-up voltage at 0 Hz. The maximum voltage
depends on parameter 103 Motor voltage, U
M,N
.
109 Resonance damping
(RESONANCE DAMP.)
Value:
0 - 500 %
100 %
Function:
High-frequency electric resonance problems between
the frequency converter and the motor can be elimi-
nated by adjusting the resonance damping.
Description of choice:
Adjust the damping percentage until the motor reso-
nance has disappeared.
110 High break-away torque
(HIGH START TORQ.)
Value:
VLT
®
6000 HVAC Series
= factory setting, () = display text, [] = value for use in communication via serial communication port
MG.61.B5.02 - VLT
®
is a registered Danfoss trademark 111
Programming