SMC Networks RS2H Series, Operation Manual

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Detail of trouble Cause Countermeasure
Cylinder starts
operating at high
speed after being
stopped for a long
time. 1. Variations in cylinder
residual pressure
between continuous
operation and restarted
operation after being
stopped for a long time.
・
Consider using a valve to prevent cylinder lurching.
Switch does not turn
on. (Switch does not
turn on occasionally.) 1. Power failure or
defective connection
・
Repair power source and rewire it properly.
2. Switch out of position
・
Slide switch on cylinder to see where it turns on, and reset in the
correct position.
3. Reduction in magnetic
force
・
If there is a source of magnetic force nearby, place cylinder away
from it or shield it.
・
If cylinder is getting hot, modify operating conditions such as
frequency to keep the temperature below 60
°
C.
・
Replace cylinder if switch still does not turn on with the measures
above.
4. Reduction in switch
sensitivity
・
Solve problems of ambient temperature, vibration and impact.
Replace switch if they cannot be solved.
Switch does not turn
off. (Switch does not
turn off occasionally.) 1. Welded reed switch
contacts
・
Check voltage and load are lower than rated values, and replace
switch.
2. Continuous ON state due
to external magnetic
force
・
If there is a source of magnetic force nearby, place cylinder away
from it or shield it.
・
If cylinder is getting hot, modify operating conditions such as
frequency to keep the temperature below 60
℃
.
・
Replace cylinder if switch still does not turn on with the measures
above.