Maintenance - SMC Networks EX250-SCF1-X200 Operation Manual

Maintenance

•Mounting and wiring
Item to inspect
Confirm the connectors
(communication, power supply) of SI
unit securely connected.
Confirm the connecting cable broken.
•Replacement parts
Item to inspect
CC-Link IE Field applicable cable for
moving part (when used)
SI unit
•Power supply
Item to inspect
Confirm the voltage satisfy the
specified range. Measure the voltages
at the both sides of the power supply
for control and input block.
Confirm the voltage satisfy the
specified range. Measure the voltages
at the both sides of the power supply
for solenoid valves.
Criteria
No looseness.
No appearance error
Criteria
No error on the appearance and
conductive resistance value
No error in operation and display
Criteria
24 VDC ±20%
24 VDC +10%/-5%
(Refer to "Electrical and
communication specifications"
on page 22.)
-18-
Countermeasure
Tighten the resistance.
If any error is found on the appearance,
replace the cable.
Countermeasure
If any error is found on the appearance
or the conductive resistance, replace
the cable.
See the specification of a cable to be
used for the conductive resistance.
If any error is found in the operation or
on the display, replace the unit.
Countermeasure
Investigate into the cause of voltage
fluctuation, and take a countermeasure
against it.
Investigate into the cause of voltage
fluctuation, and take a countermeasure
against it.
No.EX※※-OMU1012