6-17
6 Troubleshooting and Maintenance
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
6-
6 Main
tena
nce an
d Rep
lacem
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6
6-
6-3 Re
placing Faulty Unit
s
Check the items in the following table and correct any items that are below standard.
Replace a faulty User Defined CAN Unit as soon as possible. We recommend having spare Units avail-
able to restore network operation as quickly as possible.
Precautions for Correct Use
Precautions for Correct Use
Observe the following precautions when replacing a faulty Unit.
•
After replacement make sure that there are no errors with the new Unit.
•
When a Unit is being returned for repair, attach a sheet of paper detailing the problem and
return the Unit to your OMRON dealer.
•
If there is a faulty contact, try wiping the contact with a clean, lint-free cloth dampened with
alcohol.
Precautions for Safe Use
To prevent electric shock when replacing a Unit, be sure to stop communications in the network
and turn OFF the power supplies to all of the nodes (master and slaves) before removing the
faulty Unit.
Inspection Procedure
Item
Standard
Equipment
Environmental con-
ditions
Ambient and cabinet temperature
0
°
C to 55
°
C
Thermometer
Ambient and cabinet humidity
10% to 90%
(with no con-
densation or
icing)
Hygrometer
Dust/dirt accumulation
None
Check visually
Installation
Are the Units installed securely?
No looseness
Phillips head screwdriver
Are the communications connectors fully
inserted?
No looseness
Phillips head screwdriver
Are the external wiring screws tight?
No looseness
Phillips head screwdriver
Are the connecting cables undamaged?
No damage
Check visually
6-6-3
Replacing Faulty Units
Содержание CJ1W-CORT21
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Страница 116: ...5 Communications Timing 5 10 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Страница 134: ...6 Troubleshooting and Maintenance 6 18 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Страница 140: ...Appendices A 6 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Страница 141: ...Index 1 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 I Index...
Страница 144: ...Index 4 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 Index...