Omron 3G3M1-A4110-ECT - Page 531

Symptom Possible cause Remedy
Refer-
ence
page
The inverter trips
with a thermistor er-
ror (alarm code: 14).
24-VDC voltage is input to the
PTC terminal.
Remove 24-VDC voltage from the PTC ter-
minal.
page
8-77
The output frequen-
cy is unstable.
The parameter settings are in-
appropriate.
Change the output frequency value slightly
away from the power supply frequency
.
page
6-24
Change 1st Output Current Fluctuation
Damping Gain (3008Hex-51Hex) and 2nd
Output Current Fluctuation Damping Gain
(3009Hex-2AHex).
page
8-129
The load changes significantly
. Increase the motor/inverter capacity. -
The power supply voltage fluc-
tuates.
Take measure to reduce the fluctuation.
-
The torque is insuffi-
cient.
The parameter settings are in-
appropriate. (During accelera-
tion/constant speed)
Increase 1st Manual Torque Boost Voltage
(3004Hex-0AHex)/2nd Manual T
orque
Boost V
oltage (3009Hex-06Hex).
page
6-65
Set 1st Torque Boost Function Selection
(301FHex-0DHex) and 2nd Torque Boost
Function Selection (301FHex-0EHex) to “1:
Automatic torque boost.”
page
6-65
Decrease the Carrier Frequency
(3004Hex-1BHex) value.
page
8-99
Set 1st Drive Control Selection
(3004Hex-2BHex)/2nd Drive Control Selec-
tion (3009Hex-0FHex) to “5: IM Vector con-
trol without speed sensor
.”
page
7-16
The parameter settings are in-
appropriate. (During decelera-
tion)
Increase the deceleration time
(3004Hex-09Hex/3005Hex-0CHex/
3005Hex-0EHex/3005Hex-10Hex).
page
6-33
Set 1st AVR Function Selection
(301FHex-17Hex)/2nd AVR Function Se-
lection (301FHex-18Hex) to OFF
.
page
8-106
Use braking resistors or regenerative brak-
ing units.
-
Operating the inver-
ter activates the
earth leakage
breaker.
The leakage current from the
inverter is too large.
Decrease the Carrier Frequency
(3004Hex-1BHex) value.
page
8-99
Increase the sensitivity current of the earth
leakage breaker. Or
, replace the earth
leakage breaker with one with a higher
sensitivity current.
page
2-50
The DC injection
braking function
does not work.
The DC injection braking power
is not set.
Set 1st DC Injection Braking Level
(3004Hex-16Hex)/2nd DC Injection Brak-
ing Level (3009Hex-0BHex).
page
8-55
The DC injection braking time is
not set.
Set 1st DC Injection Braking Time
(3004Hex-17Hex)/2nd DC Injection Brak-
ing Time (3009Hex-0CHex).
page
8-55
The inverter trips
with an undervolt-
age (alarm code:
0A).
The voltage dropped because
the power supply capacity is in-
sufficient.
Increase the power supply capacity
.
-
9 Troubleshooting
9-35
M1 Series EtherCAT Type User’s Manual (I670)
9-2 Troubleshooting
9