Troubleshooting And Maintenance - SMC Networks EX260 Series Operation Manual

Troubleshooting and Maintenance

○Troubleshooting chart
When any malfunction is observed, it is recommended to perform the following troubleshooting.
SI unit
malfunction
Yes
No
SI unit
PWR LED and
MS LED is OFF
SI unit
PWR(V) LED is OFF
SI unit
MS LED is red
SI unit
MS LED is red
flashing
SI unit
MS LED is green
flashing
Group of valves
not working
All valves and
valve LEDs are
not operating
Valves do not work
but valve LEDs are
operating
-28-
SI unit
NS LED is OFF
SI unit
NS LED is red
SI unit
NS LED is red
flashing
SI unit
NS LED is green
flashing
SI unit
NS LED is green
Refer to fault
No.1
Refer to fault
No.2
Refer to fault
No.3
Refer to fault
No.4
Refer to fault
No.5
Refer to fault
No.6
Refer to fault
No.7
Refer to fault
No.8
Refer to fault
No.9
Refer to fault
No.10
Refer to fault
No.11
No.EX##-OMN0013-D