Omron SYSDRIVE 3G3FV User Manual page 348

Maintenance Operations
Fault Display
OPR
Oper Disconnect
EFO
Opt External Flt
EF3
External Fault 3
EF4
EF5
EF6
EF7
EF8
E-15
SI-F/G Com Err
8-6
Meaning
Faulty Digital Operator
connection.
The Digital Operator
connection was broken during
Inverter operation. Detected
when the parameter is set as
follows: 02-06=1.
External fault
(Communications/option)
External fault (Input terminal 3)
External fault (Input terminal 4)
External fault (Input terminal 5)
External fault (Input terminal 6)
External fault (Input terminal 7)
External fault (Input terminal 8)
SYSMAC BUS
communications error.
An error occurred in the
SYSMAC BUS
communications line,
disrupting communications.
Probable causes and remedies
Wiring cable is broken.
The Digital Operator or Inverter contacts are faulty.
After disconnecting the connectors and then
connecting them again or cleaning the connec-
tors, restart the power supply.
Parameter was set incorrectly.
Set 02-06 to 0.
If the problem persists, replace the cables or
Inverter.
An external fault was input from an Optional Com-
munications Card.
Reset the external fault from the Optional Com-
munications Card.
Remove the cause of the external fault input.
An external fault was input from a multi-function in-
put. ut.
Reset external fault inputs to the multi-function Reset external fault in uts to the multi-function
in uts. inputs.
Remove the cause of the external fault. Remove the cause of the external fault.
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.
Chapter 8