Omron SYSDRIVE MX2 SERIES User Manual

5-145
5-11 Sensorless Vector Control
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
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
⇒ 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.
(2) Measure automatically via offline auto-tuning
⇒ 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.
(3) Set desired parameters
⇒ 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.)
Parameter
No.
Function name Data
Default
setting
Unit
H002/H202 Motor Parameter 1/2
00: Standard motor parameter
(Application of H020/220 to H024/224 as
motor parameters)
00 −
02: Auto-tuning parameter
(Application of H030/230 to H034/234 as
motor parameters)
H003/H203
Motor Capacity
Selection 1/2
0.1 to 18.5 Default
setting
kW
H004/H204
Motor Pole Number
Selection 1/2
2/4/6/8/10
4 pole
H005/H205 Speed Response 1/2
1. to 1000.
Reduce the value if the motor hunts.
100. −
Standard motor parameters
*1
H020/H220
Motor 1/2 Parameter
R1
0.001 to 65.53
(Primary resistance)
Depends on
the capacity
Ω
H021/H221
Motor 1/2 Parameter
R2
0.001 to 65.53
(Secondary resistance)
Depends on
the capacity
Ω
H022/H222 Motor 1/2 Parameter L
0.01 to 655.3
(Leakage inductance)
Depends on
the capacity
mH
H023/H223 Motor 1/2 Parameter Io
0.01 to 655.3
(No-load current)
Depends on
the capacity
A
H024/H224 Motor 1/2 Parameter J
0.001 to 9999.
(Moment of inertia)
Depends on
the capacity
kgm
2
Auto-tuning parameters
*2
H030/H230
Motor 1/2 Parameter R1
(auto-tuning data)
0.001 to 65.53
(Primary resistance)
Depends on
the capacity
Ω

Omron SYSDRIVE MX2 SERIES Specifications

General

Brand	Omron
Model	SYSDRIVE MX2 SERIES
Category	Inverter
Language	English