Omron D40A-G9SX-NS Brochure page 21

ERR Other
indicator indicator
Fault involved with logical
AND AND connection input
flashes
Lights
Supply voltage outside the
All
indicators
rated value
except
PWR flash
When indicators other than the ERR indicator flash, check and take necessary actions referring to the following table.
ERR Other
indicator indicators
T1
Mismatch between input 1
and input 2.
T2
Off flash
(Expansion Unit)
ERR Other
indicator indicators
Fault involved with safety
--- relay outputs of
Lights Expansion Units
Fault Expected causes of the fault
1. Error in the wiring of the logical AND
connection input
2. Incorrect setting for the logical AND
connection input
3. Failure of the circuit of the logical
AND connection input
1. Supply voltage outside the rated
value
Fault Expected cause of the fault
The input status between input 1 and
input 2 is different, due to contact failure
or a short circuit of safety input
device(s) or a wiring fault.
Fault Expected cause of the fault
1. Welding of relay contacts
2. Failure of the internal circuit
D40A/G9SX-NS
Check points and measures to take
1. Check the wiring to T41 and T42.
Note: 1. Make sure that the wiring length for the
T41, T42 terminal is 100 meters or less.
2. Make sure that the logical AND
connection signal is branched for 4 units
or fewer.
2. Confirm the set value of the logical AND
connection preset switch.
3. Replace with a new product.
1. Check the supply voltage to the Units.
Check points and measures to take
Check the wiring from safety input devices to the
G9SX. Or check the input sequence of safety input
devices. After removing the fault, turn both safety
inputs 1 and 2 to the OFF state.
Check points and measures to take
Replace with a new product.
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