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■Maintenance
•Mounting/Wiring
Item
Check the SI unit connector for the
communication and the power
supply are connected properly.
Confirm that the terminal resistor is
properly connected to both ends of
TM
the DeviceNet
network.
Confirm that the connection cable is
not broken.
•Hardware
Item
Cable for moving parts
(If the cable is used)
SI unit.
•Power supply
Item
Measure the voltage at both ends of
TM
the DeviceNet
power supply and
check if the voltage is within the
specified range.
Measure the voltage at both ends of
the solenoid valve power supply and
check if the voltage is within the
specified range.
Criterion
Not loose.
Not loose.
No problem on the appearance.
Criterion
No problem is found on the
appearance or the conductor
resistance value.
(Confirm that the resistance value
does not exceed the specification)
No abnormal operation or LED
display.
Criterion
11 to 25 VDC
24 VDC +10/-5％
-29-
Remedy
Perform extra tightening.
(Refer to "Wiring" of this operation
manual)
Perform extra tightening.
If any problem is confirmed from the
appearance, replace the cable.
Remedy
If any visible problem is found or the
conductor resistance value is out of
specification, replace the cable.
Replace the SI unit if the operation
or LED display is abnormal.
Remedy
Investigate the cause of voltage
fluctuation and fix the problem.
Investigate the cause of voltage
fluctuation and fix the problem.
No.EX##-OMO0004-A
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