Inspection And Maintenance - Omron SYSDRIVE MX2 SERIES User Manual

7-1 Error Display and Remedial Actions
EEPROM error
*1
Undervoltage
Current
detector error
CPU error
7
External trip
USP error
Grounding
protection
*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.
7-3
Name Description
A trip will occur if the built-in EEPROM
generates an error due to external
noise, abnormal rise in temperature,
etc. (It may become a CPU error
depending on the case).
The output is shut off if the incoming
voltage drops to the specified value or
below, because the control circuit no
longer functions properly if the
incoming voltage to the Inverter drops.
A trip will also occur when the DC
voltage between P/+2 and N/− drops to
approx. 173 VDC (200V class) or 345
VDC (400V class) or below.
A trip will occur if the current detector
generates an error.
*1
A trip will occur if the built-in CPU
experiences a malfunction or error.
A trip will occur if the multi-function
input terminal set for External trip (12:
EXT) turns ON.
A trip will occur if the power is turned on
while a RUN signal is still input to the
Inverter. (Available only when the USP
function is selected).
A trip will occur if a ground fault
*1
between the Inverter output unit and
the motor is detected when turning on
the power. (This function does not work
when there is residual voltage in the
motor).
Error
Check point and remedy
code
E08. Is there any large noise
source around?
→Countermeasures
against noise
Has the cooling efficiency
been reduced?
→Check that there is no
clogging in the cooling
fan and clean it.
→Replace the cooling
fan.
E09. Has the power supply
voltage decreased?
→Check the power
supply.
Is the power supply
capacity insufficient?
→Check the power
supply.
Has the thyristor been
broken?
→Check the thyristor.
E10. The Inverter has a failure.
→Repair
E11. Is there any large noise
source around?
→Countermeasures
against noise
The Inverter has a failure.
→Repair
E12. Faulty external equipment
→Check the external
equipment
E13. Is the power turned on while
a RUN signal is still input?
→Check the RUN signal.
E14. Is there any ground fault?
→Check the output
wiring and motor.
Is there any error in the
Inverter itself?
→Disconnect the output
wires to check.
Is there any error in the
main circuit?
→Check the main circuit.
(Refer to Chapter 8,
"Inspection and
Maintenance").
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
Reference
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