Technical information

1-28 Motor Rotation Check
Option: Function:
Following installation and connection of the
motor, this function allows the correct motor
rotation direction to be verified. Enabling this
function overrides any bus commands or digital
inputs, except External Interlock and Safe Stop (if
included).
[0] * Off
Motor Rotation Check is not active.
[1] Enabled Motor Rotation Check is enabled. Once enabled,
Display shows:
“Note! Motor may run in wrong direction”.
Pressing [OK], [Back] or [Cancel] will dismiss the message
and display a new message: “Press [Hand on] to start the
motor. Press [Cancel] to abort”. Pressing [Hand on] starts
the motor at 5 Hz in forward direction and the display
shows: “Motor is running. Check if motor rotation direction
is correct. Press [Off] to stop the motor”. Pressing [Off]
stops the motor and resets 1-28 Motor Rotation Check. If
motor rotation direction is incorrect, two motor phase
cables should be interchanged.
WARNING
Mains power must be removed before disconnecting
motor phase cables.
1-29 Automatic Motor Adaptation (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
complete
AMA
Performs AMA of the stator resistance R
S
,
the rotor resistance R
r
, the stator leakage
reactance X
1
, the rotor leakage reactance X
2
and the main reactance X
h
.
[2] Enable
reduced AMA
Performs a reduced AMA of the stator
resistance R
s
in the system only. Select this
option if an LC filter is used between the
frequency converter and the motor.
NOTE
1-29 Automatic Motor Adaptation (AMA) will not have effect
when 1-10 Motor Construction = [1] PM, non salient SPM.
Activate the AMA function by pressing [Hand on] after
selecting [1] or [2]. See also the item Automatic Motor
Adaptation in the Design Guide. After a normal sequence,
the display will read: “Press [OK] to finish AMA”. After
pressing the [OK] key the frequency converter is ready for
operation.
NOTE
•
For the best adaptation of the frequency
converter, run AMA on a cold motor
•
AMA cannot be performed while the motor is
running
NOTE
Avoid generating external torque during AMA.
NOTE
If one of the settings in parameter group 1-2* Motor Data
is changed, 1-30 Stator Resistance (Rs) to 1-39 Motor Poles,
the advanced motor parameters, will return to default
setting.
This parameter cannot be adjusted while the motor is
running.
NOTE
Full AMA should be run without filter only while reduced
AMA should be run with filter.
See section: Application Examples > Automatic Motor
Adaptation in the Design Guide.
3.3.5
1-3* Adv. Motor Data
Parameters for advanced motor data. The motor data in
1-30 Stator Resistance (Rs) to 1-39 Motor Poles must match
the relevant motor in order to run the motor optimally.
The default settings are figures based on common motor
parameter values from normal standard motors. If the
motor parameters are not set correctly, a malfunction of
the frequency converter system may occur. If the motor
data is not known, running an AMA (Automatic Motor
Adaptation) is recommended. See the Automatic Motor
Adaptation section. The AMA sequence will adjust all
motor parameters except the moment of inertia of the
rotor and the iron loss resistance (1-36 Iron Loss Resistance
(Rfe)).
130BA375.11
R
S
P 1-30
R
1s
X
h
P1-35
R
1
X
2
X
1
U
1
I
1
Illustration 3.1 Motor Equivalent Diagram for an Asynchronous
Motor
Parameter Description
VLT
®
HVAC Drive Programming Guide
MG11CD02 - VLT
®
is a registered Danfoss trademark 39
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