-50-
No.EX
※※
-OML0011-C
Troubleshooting
No.
Failure
Possible cause
Troubleshooting
1
POWER LED is OFF.
Power supply error.
•Check whether "PWR" LED of the SI unit lights up in
green.
•Refer to the operation manual of the unit, and supply
a voltage of 24 VDC ±10% to the SI unit power supply
for control and input.
Connection failure of the
cable for Handheld
Terminal.
Check the cable for Handheld Terminal.
2
ERROR LED is ON.
EX600 diagnostic error.
Check the error in the diagnostic data check mode.
Refer to the error code list and Operation Manual for
the unit, and take the appropriate countermeasure for
the error.
3
LCD display does not turn
ON.
POWER SAVE mode.
Press the
button and check whether the LCD
display turns ON.
LCD failure.
Stop using the product. Contact your sales
representative.
4
"Warning System access
is not completed.
•••••"
is displayed.
Connection failure of the
cable for Handheld
Terminal.
Check the cable for Handheld Terminal.
EX600 units are not
connected properly.
If the "ST(M)" LED of the SI unit is flashing in red and
green alternately, check whether the units are
connected properly.
5
The unit displays "?".
Configuration memory
error.
Check that the layout of the manifold has not been
changed. Refer to the error code list and Operation
Manual for the unit, and take the appropriate
countermeasure for the error.
EX600 units are not
connected properly.
If the "ST(M)" LED of the SI unit is flashing in red and
green alternately, check whether the units are
connected properly.
6
Other Errors.
Failure of Handheld
Terminal.
Stop using the product. Contact your sales
representative.