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Chapter 7
Error message
Error messages displayed on the screen are classified into errors related to inverter and WOP
errors. They appears on the screen as shown below.
（
For inverter error messages
、
please refer to the inverter instruction manual
）
(1) The message related to inverter
Display
Cause
Check item
Resetting Method
COM ERROR
No signal is received
from the inverter
within 4 sec.
・
Check Inverter type
・
Check the connector for
looseness/disconnection.
・
Change to correct
Inverter type.
(Refer to section 4.6)
・
Replace the cable.
（
Please use the
recommended cable
）
INV in
TRIP mode
WRITE key is
pressed while the
inverter trips.
Check if the inverter trips.
Reset the inverter from the
trip status.
INV in
RUN mode
・
The WRITE key is
pressed while the
inverter is running.
・
Soft-lock is turned
ON.
・
Check if the WRITE key
is pressed while the
inverter is running.
・
Check if the WRITE key
is pressed while Soft-
Lock is ON.
・
The WRITE key should be
pressed only while the
inverter stops.
・
Release the Soft-Lock (of
the inverter).
INV Type
Un-match
An attempt was
made to write
parameter between
different type
inverters.
Check inverter type
Writing is possible only
between the same type
inverters.
Read lock
enabled
Read operation is
unavailable
Check [Read Lock] is
enable or disable
Release [Read Lock]
INV Check
Sum Error
The parameters in
WOP and the
parameters written
into the inverter are
unmatched.
Check write operation is
available or not when
inverter is power-on again.
If the same error recurs,
please check the inverter
(NOTE: It happens
sometimes when writing
data into a different voltage
class and capacity of the
inverter.)
Chapter 7
Error message
