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57
4
4..3
3 A
AL
LA
AR
RM
M D
DIIS
SP
PL
LA
AY
YS
S..
Digital
Operator
Display
Status LEDs
RUN
(green)
ALARM
(red)
Description
Possible Causes /
Corrective Actions
Blinks
Blinks
EF
Blinks
Simultaneous input of FWD
and REV commands – when
both commands are closed
for 0.5 sec. or longer, drive
stops according to n03 .
(If either input is removed,
motor operation will resume.)
bb
Blinks
External Base Block signal is
applied.
(Motor operation will resume
when Base Block input is
removed.)
SI P
(STP)
Blinks
Operator stop function –
when STOP key is pressed
while the Run command is
from control input terminal
SF or SR.
Check inputs at terminals
SF and SR.
ON
Blinks
oL3
Blinks
Overtorque detection –
motor current exceeds the
set value for longer than
detection time. Operation
continues.
Check the driven machine
and remove the overload
condition, or increase the
value in n51 to the
machine’s allowable value.
Check multi-function
contact inputs S1, S2 and
S3.
SE r
Blinks
Sequence error –
LOCAL/REMOTE command
is changed during running.
Check the main circuit
power supply voltage.
o u
Blinks
Main circuit overvoltage –
DC bus voltage exceeds
410V for a 230V drive, or
exceeds 820V for a 460V
drive, when drive is not
running.
Blinks
Blinks
U u
Blinks
Main circuit under voltage –
DC bus voltage drops below
210V for a 230V drive, or
below 420V for a 460V drive,
when the drive is not
running.
Check the voltage, verify
that main circuit power
supply wiring is connected,
and terminal screws are
securely tightened.
Check the intake air
temperature.
oH
Blinks
Heatsink overheat – intake
air temperature rises when
the drive is not running.
for more: efesotomasyon - Yaskawa drive