Omron G9SX Series, Руководство пользователя

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Ap
pe
nd
ix
1. Troubleshooting
90
G9SX
USER'S GUIDE
When indicators other than the ERR indicator blink, check and take necessary actions referring to the following table.
G9SX-EX401- @ /G9SX-EX041-T- @
ERR
indicator
Other
indicator
Fault Expected causes of the fault Check points and measures to take Page
Lights
UB blinks
Fault in external
indicator output
(1) Wiring to the external indicator output
and 24 V, 0 V, or another I/O terminal
short circuited. (1) Check the wiring to UB. ---
(2) External indicator output disconnected.
(external indicator not connected)
(2) Check the wiring to UB. 68
Failure of the
external indicator
(3) External indicator failed. (3) Replace the external indicator. ---
Fault in the external
indicator diagnosis
switching input
(4) Wiring for external indicator diagnosis
switching input and 24 V disconnected.
(when external indicator was not
connected)
(4) Check the wiring to Y4. 68
Failure in internal
circuit
(5) Failure in internal circuit for UB. (5) Replace the G9SX. ---
(6) Failure in internal circuit for Y4. (6) Replace the G9SX. ---
UA and UB
alternately
blink
Fault involved with
the Switching
Function
(1) Incorrect setting of the Switching
Function setting switch or incorrect
wiring to the mode selector input.
(1) Check the wiring to the M1 and M2, and
the setting of the Switching Function
setting switch. 67
(2) Wiring to the mode selector input and
24 V, 0 V, or another I/O terminal short
circuited. (2) Check the wiring to M1 and M2. 67
Mode selector error
(3) Incorrect mode selector input switching
time.
(3) Check the mode selector input
switching time.
78
(4) Mode selector failed. (4) Replace mode switch. ---
Failure in internal
circuit (5) Internal circuit of the mode selector
input failed.
(5) Replace the G9SX. ---
All indicators
except PWR
blink
Supply voltage
outside the rated
value
(1) Supply voltage outside the rated value.
(1) Connect to a supply voltage of 24 VDC
-15% to +10%.
---
(2) Voltage fluctuation caused by
insufficient supply voltage current
capacity.
(2) Change to a power supply with a
greater current capacity.
---
ERR
indicator
Other
indicator
Fault Expected causes of the fault Check points and measures to take Page
Off
T1
Blinks
Safety input A
mismatch
The input status between safety input A
channel 1 and safety input A channel 2 is
different due to contact failure or a short
circuit of safety input device or a wiring
fault. Check the wiring from safety input devices
to the G9SX-GS
@ . Or check the input
sequence of safety input devices.
After removing the fault, turn both safety
input A channels 1 and 2 to the OFF state. ---
T2
T6
Safety input B
mismatch
The input status between safety input B
channel 1 and safety input B channel 2 is
different due to contact failure or a short
circuit of safety input device or a wiring
fault. Check the wiring from safety input devices
to the G9SX-GS
@ . Or check the input
sequence of safety input devices.
After removing the fault, turn both safety
input B channels 1 and 2 to the OFF state. ---
T7
ERR
indicator
Other
indicator
Fault Expected causes of the fault Check points and measures to take Page
Lights
---
Failure of the
Expansion Unit
Internal safety relay contact is welded. Replace the G9SX-EX @ . ---
Internal circuit failed. Replace the G9SX-EX @ . ---