SMC Networks EX260-SPL1 Operating Manual page 25

Fault No.8
Fault Probable cause
Poor connection
between SI unit and
valve manifold
All valves
and valve
Mismatch polarity
LEDs are not
between solenoid
operating
valve and SI unit
output
Defective solenoid
valve
Fault No.9
Fault Probable cause
Valves do not Mismatch polarity
work but between solenoid
valve LEDs valve and SI unit
are operating output
Recommended error handling
Check if there are any loose screws making
the connection between the SI unit and the
valve manifold.
Check if the solenoid valve common
specification matches the output polarity of
the SI unit.
Follow the troubleshooting for the solenoid
valve.
Recommended error handling
Check if the solenoid valve common
specification matches the output polarity of
the SI unit.
-24-
Recommended action
Tighten the screws with the
specified tightening torque
(i.e. 0.6 Nm) and make sure
there is no gap between the SI
unit and the valve manifold.
Match polarity between solenoid
valve and SI unit output.
Same as left.
Recommended action
Match polarity between solenoid
valve and SI unit output.
No.EX※※-OMV0023