30
Chapter 8
Trouble shooting
In this section, the trouble shooting of WOP is described. For the trouble shooting of the
inverter, refer to the inverter instruction manual.
(1)
No data appears on the screen.
(2) In Option Mode, Read mode or Write mode, [REMOTE] key, [READ] key, [WRITE] key,
[FWD RUN] key and [REV RUN] run key are invalid.
(3) If the operator screen becomes dark or characters cannot be identified, inductive noise may
be entered from the cable. Separate WOP cable more than 15 cm from power line cables.
To reset the disturbed screen, turn ON any keys of WOP. If the same symptom appears
again, turn OFF the inverter power supply or reset the terminal reset signal.
(4) In case of changing to connect to WOP from other operators such as OPE-S while inverter
power is on, it is possible that wop can not display correctly. You can restore power to
inverter to correct it.
The inverter power
supply is ON.
Turn ON the inverter
power supply.
YES
The cable is connected
properly to both the
inverter and the remote
operator.
Turn OFF the inverter
、
Connect the cable
properly and turn ON the
Inverter power supply.
YES
The operator is defective.
Please contact your
Hitachi representative.
The cable is not broken.
Replace the cable.
(NOTE1)
YES
NO
NO
NO
Chapter 8
Trouble shooting
(
NOTE
)
The screen
maybe display in
uncorrected way with
the cable that
prepared by yourself.
Please use the
recommended cable in
chapter 3.