Danfoss VLT Refrigeration Drive FC 103 Programming Manual page 45

Parameter Description
1-39 Motor Poles
Range: Function:
NOTICE
Size [2 -
related 100]
*
This parameter cannot be adjusted
while the motor is running.
Enter the number of motor poles.
Poles ~n
2 2700–2880
4 1350–1450
6 700–960
Table 3.5 Pole Counts and Related
Frequencies
Table 3.5 shows the pole numbers for normal
speed ranges of various motor types. Define
motors designed for other frequencies
separately. The motor pole value is always an
even number, because it refers to the total
pole numbers, not pairs of poles. The
frequency converter creates the initial setting
of parameter 1-39 Motor Poles based on
parameter 1-23 Motor Frequency and
parameter 1-25 Motor Nominal Speed.
1-40 Back EMF at 1000 RPM
Range: Function:
Size [ 10 - Set the nominal back EMF for the motor
related 9000 V] when running at 1000 RPM. This
*
parameter is only active when
parameter 1-10 Motor Construction is set
to [1] PM, non salient SPM.
1-41 Motor Angle Offset
Range: Function:
0 [-32768 - Enter the correct offset angle between the PM
*
32767] motor and the index position (single-turn) of the
attached encoder or resolver. The value range of
0–32768 corresponds to 0–2 x pi (radians).
This parameter is only active when
parameter 1-10 Motor Construction is set to [1]
PM, non-salient SPM (Permanent Magnet Motor).
1-44 d-axis Inductance Sat. (LdSat)
Range: Function:
Size [0 - Enter the inductance saturation of Ld.
related 1000 mH] Ideally, this parameter has the same
*
value as parameter 1-37 d-axis Inductance
(Ld). If the motor supplier provides an
induction curve, enter the induction
value at 200% of the nominal value.
MG16H202
Programming Guide
@ 50 Hz ~n @ 60 Hz
n n
3250–3460
1625–1730
840–1153
Danfoss A/S © 05/2016 All rights reserved.
1-45 q-axis Inductance Sat. (LqSat)
Range: Function:
Size [0 - This parameter corresponds to the
related 1000 mH] inductance saturation of Lq. Ideally, this
*
parameter has the same value as
parameter 1-38 q-axis Inductance (Lq). If
the motor supplier provides an induction
curve, enter the induction value at 200%
of the nominal value.
1-46 Position Detection Gain
Range: Function:
100 % [20 - Adjusts the amplitude of the test pulse
*
200 %] during position detection at start. Adjust
this parameter to improve the position
measurement.
1-47 Torque Calibration
Option: Function:
Use this parameter to optimize the torque estimate
in the full speed range. The estimated torque is
based on the shaft power, P
sure that the R value is correct. The R
s
formula is equal to the power loss in the motor, the
cable, and the frequency converter. When this
parameter is active, the frequency converter
calculates the R value during power-up, ensuring
s
the optimal torque estimate and optimal
performance. Use this feature in cases when it is not
possible to adjust parameter 1-30 Stator Resistance
(Rs) on each frequency converter to compensate for
the cable length, frequency converter losses, and
the temperature deviation on the motor.
[0] Off
[1] 1st Calibrates at the first start-up after power-up and
start keeps this value until reset by a power cycle.
after
pwr-up
[2] Every Calibrates at every start-up, compensating for a
start possible change in motor temperature since last
start-up. The value is reset after a power cycle.
[3] 1st The frequency converter calibrates the torque at the
start first start-up after power-up. This option is used to
with update motor parameters:
•
store Parameter 1-30 Stator Resistance (Rs).
•
Parameter 1-37 d-axis Inductance (Ld).
[4] Every The frequency converter calibrates the torque at
start every start-up, compensating for a possible change
with in motor temperature since last start-up. This option
store is used to update motor parameters:
•
Parameter 1-30 Stator Resistance (Rs).
•
Parameter 1-37 d-axis Inductance (Ld).
3
2
= P - R x I . Make
shaft m s
value in this
s
43
3