Troubleshooting - SMC Networks ISA3 Series Operation Manual

Troubleshooting

If an operation failure of the product occurs, please confirm the cause of the failure from the following table.
If a cause applicable to the failure cannot be identified and normal operation can be recovered by
replacement with a new product, this indicates that the product itself was faulty.
Problems with the product may be due to the operating environment (installation etc). Please consult SMC.
○Cross-reference for troubleshooting
Fault
Output does not turn ON
Output stays ON (Does not turn OFF)
The indicator LED operates correctly.
Output does not turn ON
The Gap cannot be detected correctly.
If the troubleshooting of ISA3 does not solve the problems, it is possible that the regulator or 2 port solenoid
valve has problems. Take appropriate corrective action by referring the troubleshooting for the regulator and 2
port solenoid valve.
Possible cause
Supply pressure error Supply rated pressure. (100 kPa to 200 kPa)
Perform setting correctly.
Setting is not correct
(Refer to page 44)
Connect piping correctly and eliminate any air
Air leakage
leakage.
Perform setting correctly.
Setting is not correct
(Refer to page 44)
Apply pressure lower than the withstand pressure
Clogged piping
to eliminate the cause of clogging of piping.
Connect wires correctly.
Incorrect wiring
(Refer to page 36)
Output specification Check if the output specification (NPN/PNP) is
setting error correct.
Incorrect supply
Supply rated pressure. (100 kPa to 200 kPa)
pressure
Nozzle shape is not Correct the nozzle shape.
correct (Refer to page 29)
Do not use multiple detection nozzles with one
product.
Multiple detection
If multiple nozzles are to be used, please test them
nozzles are used
on the actual equipment. It is necessary for the
user to verify correct operation.
Equipment or fittings Do not use equipment or fittings that may leak or
causing leakage or obstruct the air flow between the product and the
resistance are used detection nozzle.
The product is not
The product should be positioned higher than the
higher than the
detection nozzle.
detection nozzle
-110-
5 Troubleshooting
Countermeasures
No.PS※※-OMW0009-A