Omron SYSDRIVE MX2 SERIES - Page 371

7-4
7-1 Error Display and Remedial Actions
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
7
Maintenance Operations
Name Description
Error
code
Check point and remedy
Reference
page
Incoming
overvoltage
protection
A trip will occur if the incoming voltage
remains in an overvoltage state for 100 s
while the Inverter is stopped. The
overvoltage detection value is approx.
390 VDC for 200V class models, or 780
VDC for 400V class models, based on
the DC voltage between P/+2 and N/−.
E15.
 Is the incoming voltage too
high?
→Decrease the incoming
voltage.
→Suppress the power
supply fluctuation.
→Apply the AC reactor to
input.
−
Abnormal
temperature
A trip will occur if the temperature of the
main circuit exceeds the specified
value due to a high ambient
temperature, etc.
E21.
 Is the installation direction
vertical?
→Check the installation.
Is the ambient temperature
high?
→Lower the temperature.
−
CPU
communication
error
A trip will occur if the built-in CPU
experiences a communication
malfunction or error.
E22.
 Is there any large noise
source around?
→Countermeasures
against noise
Faulty inverter
→Repair
−
Main circuit
error
A trip will occur if the main circuit board
generates an error.
E25.
 Is there any large noise
source around?
→Countermeasures
against noise
Faulty inverter
→Repair
−
Driver error
*1
A trip will occur upon occurrence of
momentary overcurrent, abnormal
main element temperature or drop in
main element drive power, in order to
protect the main element. (Operation
cannot be restarted following this trip).
E30.
 Is there any output short-
circuit?
→Check the output
wiring.
Is there any ground fault?
→Check the output
wiring and motor.
Has the main element been
damaged?
→Check the IGBT.
Is there any clogging in the
fan?
→Clean the fins.
−
Thermistor
error
A trip will occur upon detection of
abnormal temperature based on the
resistance of the external thermistor, if
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
interfusion in the thermistor
signal?
→Separate the wiring.
5-120
*1. If an error occurs, the reset operation using the RS terminal or STOP/RESET key is not accepted.
Turn off the power once.
If an error is issued when the power is turned on again, the memory may be faulty or parameters may
not be stored correctly. Perform parameter initialization and set the parameters again.