Motor Parameter Settings - Omron MX2 Series User Manual

6-1-3

Motor Parameter Settings

• Normally, you perform offline auto-tuning to set motor parameters.
However, if the offline auto-tuning process is aborted, for example, when the inverter does not reach
50% of its rated current during auto-tuning, you need to set the motor parameters manually.
• To configure the motor parameters manually, set the 1st/2nd Motor Parameter Selection
(H002/H202) to 00 (Standard motor parameter).
To maximize the performance of vector control, adjust the parameter values according to your motor.
• Obtain your motor's datasheet from the motor manufacturer and set each motor parameter.
The following values must be set as 50-Hz converted data for one phase in Y-connection.
Winding resistance
on primary side of motor (H020/H220) : Set the wiring resistance (in
Winding resistance
on secondary side of motor (H021/H221): Set the wiring resistance (in
Motor leakage inductance (H022/H222) : Set the leakage inductance (in mH) of the motor for one
Motor no-load current (H023/H223)
Moment of inertia (H024/H224)
• After setting each motor parameter, adjust the parameter values according to 6-1-4 Adjustments for
Sensorless Vector Control on page 6-10.
• 1st/2nd Speed Response (H005/H205) are parameters to adjust the speed response of sensorless
vector control. Increase the set value to enhance the responsiveness and decrease it if motor hunting
occurs.
Parameter
No.
1st/2nd Motor Parameter Selection 00:
H002/H202
1st/2nd Motor Capacity
H003/H203
1st/2nd Motor Pole Number
H004/H204
H005/H205 1st/2nd Speed Response
1st/2nd Motor Parameter R1 (Wind-
H020/H220
ing resistance on primary side)
1st/2nd Motor Parameter R2 (Wind-
H021/H221
ing resistance on secondary side)
1st/2nd Motor Parameter L (Leak-
H022/H222
age inductance)
1st/2nd Motor Parameter Io
H023/H223
(No-load current)
1st/2nd Motor Parameter J
H024/H224 (Moment of inertia)
Multi-function Compact Inverter 3G3MX2-EV2 User's Manual (I666-E1)
motor for one phase in Y-connection.
the motor for one phase in Y-connection.
phase in Y-connection.
: Set the no-load current of the motor, or set the current
value measured when the motor is in isolated no-load run
at 50 Hz.
: Calculate the motor-shaft conversion of the moment of
inertia of the load machine, add the moment of inertia of
the motor to it, and set the sum.
Function name
02:
0.1/0.2/0.4/0.55/0.75/1.1/1.5/2.2/3.0/
3.7/4.0/5.5/7.5/11.0/15.0/18.5
2/4/6/8
10 to 48: Do not set.
1. to 1000.
0.001 to 65.535
0.01 to 655.35
0.01 to 655.35
0.001 to 99.999
100.00 to 999.99
1000.0 to 9999.0
6 Vector Control and Applied Functions

) on the primary side of the

) on the secondary side of
Data
Standard motor parameter
(Applies H020/H220 to H024/H224
data to motor parameters.)
Auto-tuning parameter
6
Default data Unit
−
00
Maximum
applicable
kW
motor
capacity
4 pole
−
100.

Dependent
mH
on motor
capacity
A
2
kgm
6 - 9