SMC Networks D-MH1AD Series Operation Manual page 67

○Troubleshooting list
•Analogue ASW
Problem
Phenomenon
No.
The analogue
voltage is not
SW-1
output
(Near 0 V)
Analogue output
error
SW-2 (The
specifications are
not met)
The operation is
SW-3
unstable.
Problem
Possible causes
Power supply
Check the power supply voltage.
failure
Mis wiring,
Check the wiring.
poor wiring
Check to see if a ferromagnetic field
Ferromagnetic
outside the specifications is present
field environment
in the surroundings.
Check the repeated bending
Broken lead wire stress/tension applied to = the lead
wire.
Product failure
Improper
Check for any loose mounting
mounting,
bracket or analogue ASW mounting
position
screws.
displacement
Rotation of
Check to see if the piston rod is
cylinder piston
rotating.
rod
Wobbling of the Check for any loose brackets or
base screws.
Effect of a A magnetic body, such as a bracket or
magnetic body screw, is mounted close to the sensor.
Magnetization or
demagnetization
of a screw or Check the operating environment.
base due to
welding, etc.
Effect of a Check for the effect of a magnetic
magnetic field field generated by an adjacent
disturbance actuator.
Product failure
Check the condition of the wiring
Poor wiring connection (connector contact pins
and crimping terminals).
Check the repeated bending
Broken lead wire stress/tension applied to a part of the
lead wire.
Product failure
-66-
Investigation method Countermeasures
Set the specified power
supply voltage value.
Connect the wire correctly.
Cannot be used in a welding
environment or other
environment in which a
ferromagnetic field is
generated.
Correct the wiring.
(Correct the tensile force or
increase the bending radius)
Replace the product.
Fix by applying the
appropriate torque.
Take measures to stop
rotation.
Secure the brackets or
screws.
Use a non-magnetic
material.
Cannot be used in a welding
environment or another
environment in which a
ferromagnetic field is
generated.
Change the screws or base
material to a non-magnetic
material.
Increase the interval between
actuators.
Change the mounting surface
of the position sensor.
Replace the product.
Correct the wiring.
(Connect the wire at the port
location again.)
Correct the wiring.
(Correct the tensile force and
increase the bending radius)
Replace the product.
No.D-※S-OMA1021