Omron MX2 Series User Manual

10 Troubleshooting
10 - 7
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
Name
Description
Alarm
code
Check and remedy
Reference
page
Analog cur-
rent input
error
The Inverter trips if excessive current
flows through the analog current input
terminal OI.
E26.
Is there any short-circuit or incor-
rect wiring in the OI wiring?
• Check the wiring.
The control circuit board is faulty.
• Repair it.
P. 7-16
P. 7-22
Driver error
*1
This error is detected by the driver IC
incorporated in the inverter.
The inverter trips to protect the main
element if a momentary overcurrent
(approximately 350% or higher of the
rated current), abnormal temperature
in the main element, or drop of the
main element drive power supply
occurs. (If this trip occurs, the inverter
cannot be restarted.)
E30.
Is there any output short-circuit?
• Check the output wiring.
Is there any ground fault?
• Check the output wiring and
the motor.
Is the main element damaged?
• Check the IGBT. For the
check method, refer to 11-1-7
Inverter/Converter Unit Test
on page 11-10.
Is the cooling fin clogged?
• Clean the fin.
P. 11-11
Thermistor
error
The inverter trips if it detects an
abnormal temperature from the resis-
tance value of an external thermistor
when the thermistor input function is
enabled.
E35.
Is the motor temperature too
high?
• Check the temperature.
Is the thermistor damaged?
• Check the thermistor.
Is there any noise in the thermis-
tor signal?
• Separate the wiring.
P. 7-82
Brake error
The inverter trips if it cannot recognize
the ON/OFF status of the brake within
the Brake Error Detection Time
(b124) after outputting the brake
release signal, when the brake control
function is enabled (b120 = 01).
E36.
Is the brake ON/OFF function
working?
• Check the brake.
Is the time set in b124 too short?
• Increase the b124 value.
Is the brake confirmation signal
input?
• Check the wiring.
P. 6-25
P. 6-50
Emergency
shutoff
The inverter trips if the safety input
terminal GS1/GS2 are input.
E37.
Are the GS1/GS2 signals input to
the terminal correctly?
• Check the wiring and
sequence.
Is the parameter set correctly?
• Check the GS Input Opera-
tion Selection (b145) setting.
P. 7-103
*1. If this error occurs, the inverter will not accept the reset operation via the terminal RS or the STOP/RESET key.
Turn off the power supply once.
10
10-1 Alarm Display and Reme-
dies
10-1-2 Alarm Code List

Omron MX2 Series Specifications

General

Cooling Method	Fan cooling
Output Frequency Range	0.1 to 400 Hz
Control Method	V/f control, Sensorless vector control
Protection Functions	Overcurrent, overvoltage, undervoltage, overload, overheating, short circuit
Communication Options	Modbus RTU
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Ambient Operating Temperature	-10°C to +50°C
Enclosure	IP20
Storage Temperature	-20°C to +65°C
Humidity	5 to 95% RH (non-condensing)
Altitude	Up to 1000m
Power Supply Voltage	200-240V AC
Input Voltage	3-phase 200-240V AC