Omron 3G3MX2 User Manual page 381

*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.
Name
Incoming
overvoltage
protection
Abnormal
temperature
CPU
communication
error
Main circuit
error
*1
Driver error
Thermistor
error
*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.
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
Description
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/−.
A trip will occur if the temperature of the
main circuit exceeds the specified
value due to a high ambient
temperature, etc.
A trip will occur if the built-in CPU
experiences a communication
malfunction or error.
A trip will occur if the main circuit board
generates an error.
This error is detected by the driver IC
mounted in the Inverter.
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).
A trip will occur upon detection of
abnormal temperature based on the
resistance of the external thermistor, if
the thermistor input function is enabled.
7-1 Error Display and Remedial Actions
Error
Check point and remedy
code
E15. Is the incoming voltage too
high?
→Decrease the incoming
voltage.
→Suppress the power
supply fluctuation.
→Apply the AC reactor to
input.
E21. Is the installation direction
vertical?
→Check the installation.
Is the ambient temperature
high?
→Lower the temperature.
E22. Is there any large noise
source around?
→Countermeasures
against noise
Faulty inverter
→Repair
E25. Is there any large noise
source around?
→Countermeasures
against noise
Faulty inverter
→Repair
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.
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.
Reference
page
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7
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5-120
7-4