Danfoss AKD 5001 Manual page 69

NB!:
It is important to set motor parameters
102-106 correctly, since these form part of
the AMA algorithm. In most applications,
correct entering of motor parameters 102-106 is
sufficient. For optimum dynamic motor adaptation,
an AMA must be carried out.
Motor adaptation may take up to 10 minutes,
depending on the output of the motor in question.
NB!:
There must not be any externally generating
torque during automatic motor adaptation.
NB!:
If the setting in parameter 102-109 is changed,
the parameters 110-118 will return to factory
setting. If using special motor characteristics a
change in parameter 102-109 affects parameter 422.
108 Stator resistor (STATOR RESIST)
Value:
Depends on the choice of motor
Function:
After setting motor data in parameters 102-106, a
number of adjustments of various parameters are
made automatically, including the stator resistance
R . A manually entered R
S S
motor. The shaft performance can be improved by
fine-tuning R and X , see procedure below.
S S
Description of choice:
R can be set as follows:
S
1. Automatic motor adaptation, where the frequency
converter measures on the motor to determine the
value. All compensations are reset to 100%.
2. The values are stated by the motor supplier.
3. The values are obtained by means of
manual measurements:
- R can be calculated by measuring the
S
resistance R
PHASE-to-PHASE
terminals. If R
PHASE-to-PHASE
(typically motors >4-5.5 kW, 400 V), a special
ohm-meter should be used (Thomson bridge or
similar). R = 0.5 x R
S PHASE-to-PHASE
4. The factory settings of R
frequency converter itself on the basis of the
motor nameplate data, are used.
= factory setting. () = display text [] = value for use in communication via serial communication port
68
must apply to a cold
between two phase
is lower than 1-2 ohm
, selected by the
S
AKD 5000
NB!:
If the setting in parameter 102-109 is changed,
the parameters 110-118 will return to factory
setting. If using special motor characteristics a
change in parameter 102-109 affects parameter 422.
109 Stator reactance
(STATOR REACT.)
Value:
depends on the choice of motor
Function:
After setting motor data in parameters 102-106, a
number of adjustments of various parameters are
made automatically, including the stator reactance
X . The shaft performance can be improved by
S
fine-tuning R and X , see procedure below.
S S
Description of choice:
X can be set as follows:
S
1. Automatic motor adaptation, where the frequency
converter measures on the motor to determine the
value. All compensations are reset to 100%.
2. The values are stated by the motor supplier.
3. These values are obtained by means of
manual measurements:
- X can be calculated by connecting a motor to
S
mains and measuring the phase-to-phase voltage
U as well as the idling current I.
L
Alternatively, these values can be recorded
during operation in idle running state at the
rated motor frequency f
(par. 115) = 0% and load compensation at
high speed (par. 114) = 100%.
4. The factory settings of X
frequency converter itself on the basis of the
motor nameplate data, are used.
NB!:
If the setting in parameter 102-109 is changed,
the parameters 110-118 will return to factory
setting. If using special motor characteristics a
change in parameter 102-109 affects parameter 422.
, slip compensation
M,N
, selected by the
S
MG.50.R3.02 -