Omron MX2 Series User Manual

10 Troubleshooting
10 -
14
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
Symptom
Possible cause
Remedy
Reference
page
The RUN command
The RUN Direction Limit Selec-
Set the RUN Direction Limit Selection (b035)
is input, but the
tion (b035) is set to limit the for-
correctly.
P. 7-38
motor does not
ward or reverse rotation.
rotate.
The input terminal wiring or
short-circuit bar connection for
the RUN command is incorrect.
Wire correctly. (The multi-function input termi-
nal status can be checked in the Multi-func-
tion Input Monitor (d005).)
P. 2-12
P. 2-14
P. 2-36
The analog voltage/current or
Wire correctly.
variable resistor input wiring for
the frequency reference is
incorrect.
• For the analog voltage or variable resistor
input wiring, measure the voltage between
the terminals FC and L with a tester etc.
to check that the voltage is correct.
• For the analog current input wiring, with the
P. 2-12
P. 7-22
wires disconnected, measure the current
flowing between the power supply and OI
terminals with a tester etc. to check that the
current is correct.
Although the inverter is oper-
Turn OFF the terminal to which the function is
ated via the Digital Operator,
allocated.
the Multi-function Input 1 to
7 Selection (C001 to C007) is
P. 7-55
set to 51 (F-TM: Forced termi-
nal block) and that terminal is
ON.
Although the inverter is oper-
Turn OFF the terminal to which the function is
ated via the control circuit termi-
allocated.
nal block, the Multi-function
Input 1 to 7 Selection (C001
P. 7-55
to C007) is set to 31 (OPE:
Forced operator function) and
that terminal is ON.
The inverter trip occurred. (The
Press the STOP/RESET key to reset the trip
ALARM LED is lit with “Exxx”
on the display.)
and, after determining the cause and taking
countermeasures based on the alarm code,
P. 5-42
P. 10-2
restart the inverter.
Either the safety input terminal
To use the safety function, turn ON both of the
GS1 or GS2 is OFF.
safety input terminals GS1 and GS2. To dis-
able this function, connect GS1 and GS2 to
P. 7-102
P24S.
The Multi-function Input 1 to
Turn OFF the terminal to which the function is
P. 5-38
P. 5-52
P. 7-50
7 Selection (C001 to C007) is
allocated.
set to 18 (RS: Reset), 14 (CS:
Commercial switching), or 11
(FRS: Free-run stop) and that
terminal is ON.
The Multi-function Input 1 to
Turn ON the terminal to which the function is
7 Selection (C001 to C007) is
allocated.
set to 84 (ROK: Permission of
P. 7-38
RUN command) and that termi-
nal is ON.
The wiring from the inverter to
the motor, or the internal wiring
of the motor, is disconnected.
Check the input wiring.
P. 2-12
P. 2-31
The load is too heavy.
Reduce the load.
−
The motor brake is applied.
Release the brake.
−

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