Omron SYSMAC CS1G Operation Manual page 605

Troubleshooting
11-1 Troubleshooting
11-1-1 Items to Check First
No. Category
1 Installation Is the environment dusty?
environment
2 Are there any conducting materials (such as metals, carbon, etc.) in the environment
that could get into the equipment?
3 Is the ambient temperature higher than the level shown in the specifications?
4 Is there excessive moisture (from humidity, water usage, etc.)?
5 Are there corrosive materials in the environment (acid, salt, sulfur, etc.)?
6 Is there a source of noise nearby (such as a welding machine or inverter)?
7 Wiring Are signal lines and power lines placed in separate ducts?
8 Is the proper grounding provided?
9 Does the power supply have a noise filter?
10 Recent Has there been recent construction (involving welding, and so on)?
changes
11 Has a power supply been added recently?
12 Has there been changes or additions to the system (including programs)?
13 Accidents Was there any lightning nearby?
14 Was there any interruption caused by a fuse or breaker?
15 Is the power OFF?
11-1-2 Problems and Countermeasures
582
This section provides tables to refer to when a particular problem occurs. The
tables provide a general description of the nature of various potential prob-
lems, the probable cause, items to check, and suggested countermeasures.
For more detailed explanations, refer to "11-2 COUNTERMEASURES" (page
11-9) onwards.
If a problem occurs, investigate the problem after checking the following items
first.
Items to check
• If any errors that are not covered in the following tables occur, print out the
contents of the PC Interface Area and related DM Area words using the
CX-Programmer or other Support Tools and provide them to your
OMRON representative.
• If an operation cannot be properly executed, it may be that a program or
parameters were not saved when they were transferred. Upload the
parameters, programs, or position data from the MC Unit and open the file
and check to be sure that the data was transferred and saved properly.
• If an operation cannot be properly executed, there may be an error in data
or signal exchange between the ladder program and the MC Unit. Try per-
forming the operation with the Support Tool. If the operation can be per-
formed using the Support Tool, then there may be a problem with the
ladder program. Use the CX-Programmer data trace function to check
whether the data is being exchanged at the correct timing.
Section 11-1
Checked