7-3
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
EEPROM error
*1
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).
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.
−
Undervoltage 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.
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.
5-72
Current
detector error
A trip will occur if the current detector
generates an error.
E10.
The Inverter has a failure.
→Repair
−
CPU error
*1
A trip will occur if the built-in CPU
experiences a malfunction or error.
E11.
Is there any large noise
source around?
→Countermeasures
against noise
The Inverter has a failure.
→Repair
−
External trip A trip will occur if the multi-function
input terminal set for External trip (12:
EXT) turns ON.
E12.
Faulty external equipment
→Check the external
equipment
5-120
USP error 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).
E13.
Is the power turned on while
a RUN signal is still input?
→Check the RUN signal.
5-105
Grounding
protection
*1
A trip will occur if a ground fault
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).
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").
−
*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.
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