-55-
No.EX##-OMI0032-C
Maintenance
•
Mounting and wiring conditions
Check items
Condition
Solution
Confirm the connectors of each unit
(communication, power supply, input and
output) is firmly connected.
Confirm the terminating resister is
connected to both ends of network. (If this
system is located at termination of network.)
No looseness
Give an additional tightening.
Confirm there is no breakage of connecting
cable.
No defect on appearance
Replace with a new one if there is a
defect found on appearance.
•
Service parts
Check items
Condition
Solution
PROFIBUS DP compatible cable for moving
parts (if used)
No defect on appearance
and conductor resistance
Replace with a new one if there is a
defect found on appearance and
conductor resistance.
Display and operation
No defect on operating
conditions and display
Replace with new unit if there is
unintentional operation and defect
found on display.
•
Power supply
Check items
Condition
Solution
Measure the voltage at both ends of input
and GW controlling part power supply and
confirm the voltage is within specifications.
24 VDC±10%
Investigate the cause of fluctuation of
the voltage and take measure.
Measure the voltage at both ends of output
power supply and confirm the voltage is
within specifications.
24 VDC+10%/-5%
Investigate the cause of fluctuation of
the voltage and take measure.
How to reset the product for power cut or forcible de-energizing
Supply power to the product.
The output status just before the power failure is not maintained when power supply is recovered.
Start operation after confirming safety of the entire equipment.
