![Omron SYSDRIVE MX2 SERIES User Manual Download Page 306](http://html.mh-extra.com/html/omron/sysdrive-mx2-series/sysdrive-mx2-series_user-manual_741918306.webp)
6 Vector Control and Applied Functions
6 - 64
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
Precautions for Correct Use
• For a PM motor, even if the DC injection braking function is enabled, the regenerative energy
is returned to the inverter. If an overvoltage trip occurs during DC injection braking or during
deceleration, consider to use one or more braking resistors.
• If a holding brake is provided, release the brake before running the motor.
If this timing is not correct, the PM motor will stall.
• To improve the control performance of the PM motor, be sure set the Carrier Frequency
(b083) to 8.0 kHz or higher.
• Derating of the output current may be required depending on the installation environment
and the Carrier Frequency (b083) setting. For derating of each inverter model, refer to
A-1
Derating
on page A-2.
Adjust the PM motor as shown in the table below depending on its operation status and the phenome-
non.
H131
PM Motor Initial Pole Position Esti-
mation 0V Waiting Times
0 to 255
10
time
H132
PM Motor Initial Pole Position Esti-
mation Detection Waiting Times
0 to 255
10
time
H133
PM Motor Initial Pole Position Esti-
mation Detection Times
0 to 255
30
time
H134
PM Initial Pole Position Estimation
Voltage Gain
0 to 200
100
%
PM Motor Adjustment
Operation status
Phenomenon
Adjustment method
Adjust-
ment item
During startup
Motor rotates in
reverse or rotates
slightly.
The motor may rotate slightly in magnetic pole alignment
during startup.
Enable the initial pole position estimation function (refer to
P. 6-66) to suppress the rotation speed during startup.
H123
Motor stalls or
causes an overcur-
rent trip.
If the motor stalls during startup, a large current may flow,
which causes an overcurrent trip.
Increase the PM Motor Starting Current value.
Increasing the PM Motor Starting Current value improves
the magnetic pole alignment during startup, which results
in an increase in the startup torque.
However, setting this parameter to an excessively large
value may cause an overload. Check the value in the Elec-
tronic Thermal Load Rate Monitor (d104).
H117
Increase the PM Motor Starting Time value.
This increases the time during which the starting current
flows to improve the magnetic pole alignment during
startup, which results in an increase in the startup torque.
H118
Motor starting time
is too long.
Enable the initial pole position estimation function (refer to
P. 6-66) and shorten the motor starting time.
H118,
H123
Parameter
No.
Function name
Data
Default
data
Unit
Summary of Contents for SYSDRIVE MX2 SERIES
Page 1: ...Multi function Compact Inverter MX2 Series Type V1 User s Manual I585 E1 01 3G3MX2 A V1 ...
Page 32: ...CONTENTS 29 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 108: ...2 Design 2 48 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 176: ...4 Parameter List 4 42 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 538: ...10 Troubleshooting 10 22 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 598: ...12 Options 12 50 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 614: ...Appendices A 16 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 615: ...I 1 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 I Index ...