SMC Networks D-S7 Series, Руководство по эксплуатации

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-18-
No.D-
※
S-OMB0023-B
Reference
No.
Problem Possible cause Investigation method Countermeasure
7
Unstable
operation
(Chattering)
Incorrect setting
(mounting)
position
Check if detection is made around the limit
of operation range.
Correct the position.
(center of the operation range.)
Set position
displacement
Loose set bracket or set screw.
Fix at the right position with right torque.
Tightening torque: 0.5 Nm
Wiring failure
Condition of connecting part
(connector contact pin/crimp terminal).
Correct wiring.
(Re-wiring of connecting part)
Lead wire
disconnection
Presence of repeated bending stress to
one point of the lead wire.
(Bend radius/Tensile force to lead wire)
Correct wiring.
(Correct tensile force/increase bend
radius)
Malfunction due to
turbulence
magnetic field
Presence of magnetic field generating
source around the cylinder.
(Cylinder, electric welding machine
conductor, motor, magnet etc.)
Use the shield between magnetic field
generating source and cylinder.
Keep the cylinder away from magnetic
field generating source.
Multiple point
operation
Malfunction due to
turbulence
magnetic field
Influence of the magnetic field of adjacent
cylinder.
Use magnetic shield between Cylinders.
Load does not
operate
Detect the
intermediate
position of the
stroke
Check if piston speed satisfy the formula
below.
Load operation time [s]
< Switch operation time [mm]
/piston speed [mm/s]
Reduce the piston speed until the formula
is satisfied