And Input - Omron G9SX Series Manual

Fault Detection
When the G9SX detects a fault, the ERR indicator and/or other indicators light up or blink to inform the user about the fault.
Check and take necessary measures referring to the following table, and then re-supply power to the G9SX.
(Advanced Unit/Basic Unit)
ERR Other
indicator indicator
Fault due to electro-magnetic
--- disturbance or of internal
Blinks circuits.
Fault involved with safety
input 1
T1 blinks
Fault involved with safety
input 2
T2 blinks
Faults involved with
feedback/reset input
FB blinks
Fault in Expansion Unit
Fault involved with
instantaneous safety outputs
or logical AND connection
outputs or auxiliary monitor
EI blinks
output
Lights up
Fault involved with OFF-
delayed safety outputs
ED blinks
Fault involved with logical
AND blinks
AND connection input
(AND1,
AND2)
Supply voltage outside the
All
rated value
indicators
except
PWR blink
When indicators other than the ERR indicator blink, check and take necessary actions referring to the following table.
ERR Other
indicator indicators
T1
Mismatch between input 1 and
input 2.
Off Blink
T2
(Expansion Unit)
ERR Other
indicator indicators
Fault involved with safety
--- relay outputs of Expansion
Units
Lights
Fault Expected causes of the fault
1) Excessive electro-magnetic disturbance
2) Failure of the internal circuit
1) Failure involving the wiring of safety input 1
2) Incorrect setting of cross fault detection input
3) Failure of the circuit of safety input 1
1) Failure involving the wiring of safety input 2
2) Incorrect setting of cross fault detection input
3) Failure of circuits of safety input 2
1) Failures involving the wiring of feedback/
reset input.
2) Failures of the circuit of feedback/reset input
1) Improper feedback signals from Expansion
Unit
2) Abnormal supply voltage to Expansion Unit
3) Failure of the circuit of safety relay contact
outputs
1) Failure involving the wiring of instantaneous
safety outputs
2) Failure of the circuit of Instantaneous safety
outputs
3) Failure involving the wiring of the logical AND
connection output
4) Failure of the circuit of the logical AND
connection output
5) Failure involving the wiring of the auxiliary
monitor output
6) Impermissible high ambient temperature
1) Failure involving the wiring of OFF-delayed
safety relay contact outputs
2) Incorrect set values for OFF-delay time
3) Failure of the circuit of OFF-delayed safety
relay contact outputs
4) Impermissible high ambient temperature
1) Failure involving 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 faults
1)Welding of relay contacts
2)Failure of the internal circuit
Check points and measures to take
1) Check the disturbance level around the G9SX and
the related system.
2) Replace with a new product.
1) Check the wiring to T11 and T12.
2) Check the wiring to Y1.
3) Replace with a new product.
1) Check the wiring to T21 and T22.
2) Check the wiring to Y1.
3) Replace with a new product.
1) Check the wiring to T31, T32 and T33.
2) Replace with a new product.
1) Check the connecting cable of Expansion Unit and
the connection of the termination socket.
2) Check the supply voltage to Expansion Unit.
Note: Make sure that all Expansion units' PWR
indicators are lit.
3) Replace the Expansion Unit with a new one.
1) Check the wiring to S14, S24, and S34.
2) Replace with a new product.
3) Check the wiring to L1 and L2.
4) Replace with a new product.
5) Check the wiring to X1.
6) Check the ambient temperature and spacing around
the G9SX.
1) Check the wiring to S44 and S54.
2) Confirm the set values of the two OFF-delay time
preset switches.
3) Replace with a new product.
4) Check the ambient temperature and spacing around
the G9SX.
1) Check the wiring to T41 and T42 (T51 and T52).
Note: Make sure that the wiring length for the T41,
T42, T51, T52 terminal is less than 100 meters.
Note: Make sure that the logical AND connection
signal is branched for less than 4 units.
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 to the
OFF state.
Check points and measures to take
Replace with a new product.
G9SX
14