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No.EX##-OML0007
Error display
Common for SI Units
LED status
Descriptions
Power for control/input is OFF.
Unit is operating normally.
Component failure inside SI unit.
When ST(M) indicator is red, stop using the product and contact SMC.
•Valve is in short circuit or open circuit.
•Valve ON/OFF counter has exceeded the set value.
Communication error between units.
Check the connection between units.
Error diagnostic detected the error of a unit other than the SI unit.
Abnormal power voltage for control/input.
Check the power supply and adjust or replace it.
Abnormal power voltage for output.
Check the power supply and adjust or replace it.
Symbol Status Symbol
Status
Light OFF
Flashing red light
Red light ON
Flashing red/green light
(Alternate: frequency 1 s)
Green light ON
Flashing green light