Setting Motor Parameters For Pm Motors - Omron VARISPEED L7 Manual

Motor Line-to-Line Resistance Setting (E2-05, E4-05)
E2-05 is set automatically during motor line-to-line resistance autotuning. When it can not be performed for
any reason, consult the motor manufacturer for the line-to-line resistance value. The set value should be calcu-
late the motor test report line-to-line resistance value and the following formula:
E-type insulation: [Line-to line resistance (Ω) at 75°C of test report] × 0.92 (Ω)
•
B-type insulation: [Line-to line resistance (Ω) at 75°C of test report] × 0.92 (Ω)
•
F-type insulation: [Line-to line resistance (Ω) at 115°C of test report] × 0.87 (Ω)
•
Motor Leak Inductance Setting (E2-06, E4-06)
Set the amount of voltage drop due to motor leakage inductance in E2-06 as a percentage of the motor rated
voltage. If the inductance is not written on the motor nameplate, consult the motor manufacturer.
Motor Iron Saturation Coefficients 1 and 2 Settings (E2-07/08)
E2-07 and E2-08 are set automatically during rotating autotuning.
Motor Iron Loss for Torque Compensation Setting (E2-10)
E2-10 is displayed only in V/f control method and can be set to increase the torque compensation accuracy.
Motor Setting 1/2 Switch Over
Refer to page 6-55, Motor 2

Setting Motor Parameters for PM Motors

6
The autotuning with rotating motor can be used to let the inverter measure the voltage constant, the line-to-line
resistance and the q- and d-axis inductances and the encoder offset (refer to
with PM Motors. It can be performed only if the motor can rotate freely (removed ropes and open brake). If
the autotuning can not be performed for any reason, the following motor parameters must be set manually.
Related Parameters
Parameter
No.
E1-01
E1-04
E1-06
E1-09
E1-13
E5-02
E5-03
E5-04
E5-05
E5-06
E2-07
E5-09
*1. The given value is valid for 400V inverters.
*2. The factory settings depend on Inverter capacity (the values shown are for a 400 V Class Inverter for 3.7 kW).
62
6-
Selection.
Name
Input voltage setting
Max. output frequency (FMAX)
Base frequency (FA)
Min. output frequency (FMIN)
Base voltage (VBASE)
Motor rated power
Motor rated current
Number of motor poles
Motor line-to-line resistance
Motor d-axis inductance
Motor q-axis inductance
Motor voltage constant
Change
Factory
during
Setting
V/f
Operation
*1
No Q
400 V
150 rpm No Q
150 rpm No Q
0 rpm No Q
*1
No A
400 V
*2
No -
3.7kW
*2
No -
7.31 A
4 poles No -
*2
No -
1.326 Ω
*2
No -
19.11 mH
*2
No -
26.08 mH
*2
No -
478.6 mV
page 4-7, Autotuning Procedure
Control Methods
Set by
Closed
Open Closed
Auto-
Loop
Loop Loop
tuning
Vector
Vector Vector
(PM)
Q Q Q No
Q Q Q Yes
Q Q Q Yes
Q A A Yes
A - Q Yes
- - A Yes
- - A Yes
- - A Yes
- - A Yes
- - A Yes
- - A Yes
- - A Yes