Omron MX2 Series User Manual

10 Troubleshooting
10 -
8
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
Name
Description
Alarm
code
Check and remedy
Reference
page
Overload
protection in a
low speed
range
(Inverter
overload
protection)
The inverter trips if its built-in elec-
tronic thermal function detects an
overload in an extremely low speed
range of 0.2 Hz or lower. (However,
the error history may indicate a high
frequency.)
If the Motor Electronic Thermal Selec-
tion (b910) is set to separate the over-
load protection for the motor and for
the inverter, this function serves as
the inverter overload protection.
E38.
Is the load too heavy?
• Reduce the load rate.
P. 5-15
P. 5-59
P. 6-62
P. 7-35
P. 7-78
Digital
Operator
connection
failure
The Inverter trips if an error or discon-
nection occurs when it communicates
with the remote Digital Operator
(Model: 3G3AX-OP01).
E40.
Is there any communications
error?
• Check/replace the cable.
This error detection function
is disabled when b165 is set
to 02 (Ignore).
P. 7-56
Modbus
communication
error
The inverter trips if a timeout occurs
when the Operation Selection on
Communication Error (C076) is set to
00 (Trip).
E41.
Is the communication speed cor-
rect?
• Check the set value.
Is the wiring distance appropri-
ate?
• Check the communications
wires.
Is there any disconnected wire?
• Check the wiring.
Is the terminating resistor setting
correct?
• Check the terminating resis-
tor.
P. 8-5
DriveProgramming
error
• Program error (E43. to E45.)
• User trip (E50. to E59.)
E43.
to
E59.
For details, refer to the DrivePro-
gramming User's Manual.
−
Option error
This error is received from the option
unit.
E60.
to
E68.
For details, refer to the manual
for the option unit.
P. 10-10
Option timeout
The inverter trips if a timeout occurs in
communications between the inverter
and the option unit.
E69.
No option unit is connected.
• Check that the housing of the
option unit is mounted prop-
erly with the inverter. Check
also that the fixation screws
are not loosened.
The option unit is faulty.
• The option unit may be faulty
if it is mounted properly.
P. 10-10

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