-57-
No.EX##-OMI0032-C
∗
: Some types of output equipment do not have LED display. For such equipment, check the Output unit voltage to judge if it is normal
or not.
Trouble No.1
Trouble
Possible cause
Investigation method of cause
Solution
Incorrect branch
cable connection
Confirm there is no breakage, incorrect
connection and looseness at connecting
part of the branch cable.
Fix the connection of the branch
cable.
Incorrect output
power supply
connection
There is no incorrect connection
between GW unit power supply and
Output unit power supply connector.
Fix connection.
PWR LED of
unit goes off
Output power supply
failure
Confirm the condition of output power
supply.
Supply 24 VDC +10%/-5% for
GW unit power supply and
Output unit power supply.
The information
about input
equipment can not
be recognized
Check the condition
of GW unit
DIA LED Light up
A port COM LED
to show the
connection with low
side goes off
Check the condition
of Input unit
LED for power
supply of input unit
goes off
After check
GW unit fails.
GW unit comes to
operate normally.
⇒
To Condition D
Refer to trouble
No.7
A fielfbus system
comes to operate
normally
Refer to trouble
No.10
Display LED
corresponding to
input signal goes off
or mis-light up
Refer to trouble
No.11
Input unit comes
to operate
normally
Input unit comes to
operate normally.
⇒
A fieldbus system
comes to operate
normally.
Refer to trouble
No.12
Condition C
Condition D
During check
