SMC Networks EX510-GMJ1 Series, Operation Manual

Page: 54 / 58

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No.EX##-OMI0001-E
Trouble No.7
Trouble Possible cause Investigation method of cause Solution
Check that the cable of the power
supply for output is not broken and the
connection between the power supply
cable and connector is not loosened. Review the connection of the
power supply cable.
(Replace the cable if it is
broken.)
Incorrect wiring of the
power supply for
output
Check that the wiring of the power
supply cable is correctly done. Check the wiring of the power
supply cable.
PWR(V) LED
of GW unit
goes off
Failure of the power
supply for output Check the supply voltage to the power
supply for output. Supply 24 VDC+10%/-5% to the
power supply for output.
Trouble No.8
Trouble Possible cause Investigation method of cause Solution
Setting error
Check the setting of the address and
transmission speed.
Review the setting of switches.
Communication error
Check the wiring length of the
communication line against the
communication speed, the existence of
the terminal resistance at the both end
of the main line, and that the exclusive
cable for DeviceNet is used.
Review the wiring.
Check that there is no broken
communication line or loosened
connector.
Review the connection of the
communication line.
(Replace the cable if it is
broken.)
Broken
communication line
Check if the PLC is operating normally. Review the setting of the PLC.
Duplicated address
Check that there is no duplicated
address.
Review the setting of address.
L RUN LED of
GW unit goes
off
Failure of GW unit
Replace with a new GW unit and check
that normal operation is recovered. Replace the GW unit with a new
one.
Trouble No.9
Trouble Possible cause Investigation method of cause Solution
Address setting error Check the setting of address. Review the setting of switches.
Incorrect wiring of
communication line Check that there is no incorrect
connection of communication line.
Review the communication line.
Check that the FG terminal is grounded.
Ground the FG terminal to
improve the noise resistance of
the fieldbus system.
L ERR LED of
GW unit lights
up
Abnormal status of
GW unit
Check that the power supply line is not
in the same route as the power line
and/or high voltage line. Separate the power supply line
from the power line and the high
voltage line.