Hitachi SJ700-2 Series Service Manual page 32

Name Description
The inverter detects errors in the option
board mounted in the optional slot 2.
For details, refer to the instruction
Option 2
manual for the mounted option board.
error
If the input voltage falls, the inverter will
shut off its output, display the code
shown on the right, and wait for the
recovery of the input voltage.
Waiting in The inverter will display the same error
undervoltage code also during an instantaneous
status power failure.
(remark) Inverter trips with under
voltage when this status continues for
40 seconds.
If a problem occurs in the
communication between the digital
Communica- operator and inverter, the inverter will
tion error display the code shown on the right.
When the retry after instantaneous
power failure or tripping has been
Waiting for enabled, the inverter displays the code
retry shown on the right while awaiting retry
after an instantaneous power failure or
tripping.
The inverter displays the code shown
Power-off on the right when the inverter power is
turned off.
When an operation direction has been
restricted by the setting of "b035", the
Restricted
inverter will display the error code
operation
shown on the right if the operation
command
command specifying the restricted
operation direction is input.
If the inverter has not tripped before,the
Empty trip
inverter displays
history
Display on
digital operator
to
.
Display on remote
Troubleshooting and corrective action
operator
Check whether the option board is
mounted correctly.
OP2-0
Check whether the option board is used
correctly.
OP2-9
(Check the instruction manual for the
Check whether the power supply voltage
has fallen.
Check the MCB and magnetic contactors
for poor contacts.
UV.WAIT
Check whether the voltage across the P
and N terminals is normal.
(Check the voltage across the P and N
Check whether the relay plug is fitted
correctly.
R-ERROR COMM<1>
(Check the relay plug for connection.)
Check whether the digital operator is
R-ERROR COMM<2>
connected correctly.
(Check the digital operator for connection.)
RESTART
ADJUST
POWER OFF
RUN.CMD DISABLE
？
2- 4
(Check the board mounting.)
option board.)
(Recover the power supply.)
(Replace the MCB and magnetic
contactors.)
terminals.)