Motor Parameter Selection - Omron SYSDRIVE MX2 SERIES User Manual

5-11 Sensorless Vector Control

Motor Parameter Selection

When sensorless vector control is performed, set the motor parameters according to the motor
used.
If multiple motors are used with one Inverter using constant torque characteristics (VC),
reduced torque characteristics (VP 1.7th power) or free V/F setting, calculate the total motor
capacity and select the closest data in Motor capacity.
When automatic torque boost is used, improper setting of this parameter may result in torque
reduction or motor hunting.
The motor parameters can be set by one of the following three methods:
(1) Use the motor parameters of a standard motor
(2) Measure automatically via offline auto-tuning
(3) Set desired parameters
5
Parameter
H002/H202
H003/H203
H004/H204
H005/H205
Standard motor parameters
H020/H220
H021/H221
H022/H222 Motor 1/2 Parameter L
H023/H223 Motor 1/2 Parameter Io
H024/H224 Motor 1/2 Parameter J
Auto-tuning parameters
H030/H230
5-145
⇒ When the "Standard Motor Parameters" are selected (H002/H202 = 00), the motor
parameter values set in H020/220 to H024/224 are applied. The parameters of a
standard motor are set in H020/220 to H024/224 by default.
⇒ When the auto-tuning parameters are selected in Motor Parameter (H002/H202 = 02)
after offline auto-tuning, the motor parameters automatically measured by offline auto-
tuning (H030/230 to H034/234) are applied. Refer to "Offline Auto-Tuning Function" on
page 5-146.
⇒ In either (1) or (2) above, the motor parameters can be changed to desired values.
Change the values of H020/220 to H024/224 or H030/230 to H034/234 according to the
value of H002/202. (The parameters of a standard motor are set in H030/230 to H034/
234 by default.)
Function name
No.
Motor Parameter 1/2
Motor Capacity
Selection 1/2
Motor Pole Number
Selection 1/2
Speed Response 1/2
*1
Motor 1/2 Parameter
R1
Motor 1/2 Parameter
R2
*2
Motor 1/2 Parameter R1
(auto-tuning data)
Data
00: Standard motor parameter
(Application of H020/220 to H024/224 as
motor parameters)
02: Auto-tuning parameter
(Application of H030/230 to H034/234 as
motor parameters)
0.1 to 18.5
2/4/6/8/10
1. to 1000.
Reduce the value if the motor hunts.
0.001 to 65.53
(Primary resistance)
0.001 to 65.53
(Secondary resistance)
0.01 to 655.3
(Leakage inductance)
0.01 to 655.3
(No-load current)
0.001 to 9999.
(Moment of inertia)
0.001 to 65.53
(Primary resistance)
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
Default
Unit
setting
00 −
Default
kW
setting
4 pole
100. −
Depends on
Ω
the capacity
Depends on
Ω
the capacity
Depends on
mH
the capacity
Depends on
A
the capacity
Depends on
2
kgm
the capacity
Depends on
Ω
the capacity