Omron SYSDRIVE 3G3FV, User Manual, Page: 353 / 400

8-11
Minor fault display Probable causes and remedies Meaning
E-15
SI-F/G Com Err
SYSMAC BUS
communications error.
An error occurred in the
SYSMAC BUS
communications line,
disrupting communications.
•
The communications line was broken, short-cir-
cuited, or wired in reverse.
→
Check the communications line and correct the
trouble.
•
Hardware on the Master end is faulty.
→
Check the Master and take necessary mea-
sures.
•
Communications data was damaged due to noise.
→
Use twisted-pair cables for communications
lines and ground all the shields on the Master
end.
•
The Optional Card was damaged.
→
If wiring is correct and if the problem persists,
replace the Optional Card.
BUS
Option Com Err
CompoBus/D communications
error.
Communications error
occurred in the CompoBus/D
Communications Card.
•
Communications cable was broken, short-cir-
cuited, or wired incorrectly.
→
Check wiring of communications cables and
correct the fault.
•
Hardware on the Master end is faulty.
→
Check the Master and take necessary mea-
sures.
•
Data was damaged due to noise.
→
Change to special communications cables or
shielded cables and ground the shields on the
Master end or power supply end.
→
Separate communications cables from other
lines and install a noise filter on the power sup-
ply.
•
The Optional Card was damaged.
→
If wiring is correct and if the problem persists,
replace the Optional Card.
Maintenance Operations
Chapter 8