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-22-
No.EX##-OMM0008-B
Maintenance
Mounting and wiring
Item to inspect
Criteria
Countermeasure
Confirm the connectors (communication,
power supply) of the SI unit are securely
connected.
No looseness.
Tighten the connector screws.
(refer to “Mounting/Installation”
on page 10)
Confirm the connecting cable is not
broken.
No signs of breakage.
If any breaks are found, replace the
cable.
Replacement parts
Item to inspect
Criteria
Countermeasure
Cable for moving parts
(when used)
No signs of breakage and no
error in the conductive
resistance value.
(For the resistance value,
check for exceeding of
specified range and balance
change in pair cable.)
If any breaks and found, or the
conductive resistance is incorrect,
replace the cable.
Refer to the cable specifications for the
conductive resistance.
SI unit
No error in operation and
display.
If any error is found in the operation or
on the display, replace the unit.
Power supply
Item to inspect
Criteria
Countermeasure
Confirm the voltage is within the specified
range. Measure the voltages at both
sides of the power supply for
CompoNet
TM
.
14 VDC to 26.4 VDC
Confirm the voltage is within the specified
range. Measure the voltages at both
sides of the power supply for solenoid
valves.
24 VDC +10%/-5%
(refer to “Unit specification”
on page 26)
Investigate the cause of the voltage
fluctuation, and take countermeasures
against it.