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Description of alarm display indications
7. Description of alarm display indications
Error
indication
Description of
fault operation
Item for inspection
Processing
Err
Operation error
Was the unit operated as
indicated in the manual
Use the correct procedure
ErO
Operation error of Switch off the power and then Replace the unit
internal ROM,
RAM
ErC
Error of internal
CPU
apply again
Is there a large amount of
external noise
Check the contact
absorber. Install a noise
filter
OCPA
Over current
(180% rated
current)
OCPd
Over current
(180% rated
current)
OCPn
Over current
Was there rapid acceleration Lengthen the acceleration
time
Was there rapid deceleration Lengthen the deceleration
time
Was there any variation in the Lengthen the time for the
(180% rated
current)
OC
Over current
(200% rated
current)
OCS
Output short
circuit or ground
detected
OU
DC link over
voltage
LU
Insufficient
voltage detected
due to power
failure or
instantaneous
power loss.
LU A
Insufficient
voltage detected
due to power
failure or
instantaneous
power loss. And
the auto save
function is
working
load
Was there rapid acceleration
/ deceleration and variation in
the load
Is there a short circuit for the
output or grounding for the
motor
Was there fast deceleration,
or fast voltage
Is there a low voltage at
power, or internal inverter
wiring error
Is there a low voltage at
power, or internal inverter
wiring error
