LCD Digital Operator
LCD Digital Operator User's Manual v0_90 110218.doc
25
Issue 0.90 Draft
6. Error Message
Error Messages displayed on the screen are classified into inverter error and LCD digital operator
errors. They appear on the screen as shown below.
(1) Inverter error message
ERR1 ********
?ERROR *******
Note: For more details, please refer to the each inverter instruction manual.
(2) LCD digital operator error message
Display
Cause
Check item
Action
Resetting
Method
COM
ERROR
· No signal is
received from the
inverter within 4
sec.
· Reset the inverter.
· Check Inverter type
· Check the connector for
looseness/disconnection.
· Check the cable for break.
· Avoid issuing the RESET
signal continuously for
more than 5 sec.
· Change to correct Inverter
type.
· Replace the cable and the
connector
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 in
TRIP
mode
· WRITE key is
pressed while
inverter trips.
· Check if the inverter trips.
· Reset the inverter from trip
status.
INV Type
Un-match
· An attempt was
made writing
parameters between
different inverter
type.
· Writing is possible only
between the same type
inverters.
Read lock
enabled
· In case of display
“READ LOCK”.
· Release the Read Lock.
Press
STOP/
RESET key
Data
Check
Sum
Error
· EEPROM of LCD
digital operator is
overloaded. It
reaches the
EEPROM’s Write
Limitation
· If the same error appears after
the power is supplied several
times, the operator is defective.
INV Check
Sum
Error
· The parameters in
LCD digital operator
and the parameters
written into the
inverter are
unmatched.
· If the same error appears
several times, the inverter is
defective. (NOTE 1)
Supply the
power again
NOTE 1: It will happen sometimes when you try to write data into an inverter with different voltage
class and capacity. (Please refer to each inverter instruction manual.)
