-24-
No.EX
※※
-OME0014-F
Trouble No.3
Trouble
Possible cause
Investigation method of cause
Remedy
Check that the power supply cable for the
solenoid valve is not broken, and that the
connection between the power supply cable
and connector has not loosened.
Review the connection
condition of the power supply
cable. (If the cable is broken,
replace it with a new one.)
Incorrect wiring for the
power supply for
solenoid valve and
the power supply.
Check that there is no Incorrect wiring of
the power supply cable.
Review the wiring condition
of the power supply cable.
Failure of the power
supply for the
solenoid valve.
Check the supply voltage to the power
supply for the solenoid valve.
Supply 24 VDC +10%/-5% to
the power supply for the
solenoid valve.
Check that the bolt joining the SI unit with
the solenoid valve and Output block has not
loosened.
Tighten the bolts by hand so
that there is no gap between
the SI unit and the solenoid
valve and/or Output block.
Tighten at the specified
torque.
(Tightening torque: 0.6 Nm)
Incorrect connection
between the SI unit
and the solenoid
valve and/or Output
block.
Check if the Output block (for high wattage
and load and low wattage and load) and
Power block are mounted in the right
position.
Review the position of the
Output block and Power
block.
Intrusion of liquids
such as water.
Check that unused connectors of the
Output block and Power block are plugged
with waterproof caps.
If liquid such as water has
got into the Output block
and/or Power block, replace
the Output block and Power
block with new ones.
Check that the output load cable is not
broken, and that the connection between
the output load and connector has not
loosened.
Review the connecting
condition of the output load.
(If the cable is broken,
replace it with a new one.)
Incorrect connection
of the load with the
Output block.
Check if the specifications of the SI unit
match those of the Output load
(+ common, - common).
Use - common with the
output load for the PNP
output.
Inconsistent polarity
between the solenoid
valve (VQC1000/2000)
and Output block.
Check if the specifications of the SI unit
match those of the solenoid valve and
output block (+ common, - common).
Use - common with the
solenoid valve and Output
block suitable for the PNP
output of the SI unit.
Check the troubleshooting for the solenoid
valve.
Same as left.
Only the
solenoid
valve/Output
block LEDs do
not turn on
Failure of the solenoid
valve and/or Output
block.
Replace the SI unit with new one and
operate to check the normal operation
recovers.
Replace the SI unit with new
one.
Summary of Contents for EX250-SPR1
Page 30: ...Dimensions 29 No EX OME0014 F ...
