SMC Networks ZSE20A User Manual

-68-
No.PS※※-OMU0003-C
○Troubleshooting list
Problem
No.
Problem
Problem possible
causes
Investigation method
Countermeasures
1
Output remains
ON.
Indicator LED
remains ON.
Output remains
OFF.
Indicator LED
remains OFF.
Incorrect
pressure setting
(1) Check the set pressure.
(2) Check the operation mode,
hysteresis and output type.
(hysteresis mode/window
comparator mode,
normal/reversed output)
(1) Reset the pressure
setting.
(2) Reset the function
settings.
Product failure
Replace the product.
2
Output remains
ON.
Indicator LED
works correctly.
Incorrect wiring
Check the wiring of the output.
Check if the load is connected
directly to DC(+) or DC(-).
Correct the wiring.
Product failure
Replace the product.
3
Output remains
OFF.
Indicator LED
works correctly.
Incorrect wiring
Check the wiring of the output.
Check if the load is connected
directly to DC(+) or DC(-).
Correct the wiring.
Unsuitable model
selection
Check if PNP is used when NPN
should have been selected, or the
other way around.
Review the selected model
(output type).
Broken lead wire
Check if there is bending stress
applied to any parts of the lead wire.
(bending radius and tensile force
applied)
Correct the wiring
conditions. (adjust the
tensile force and increase
the bending radius.)
Product failure
Replace the product.
4
Switch output
generates
chattering.
Incorrect wiring
Check the wiring.
Check if the brown and blue wires are
connected to DC(+) and DC(-)
respectively, and if the output wiring
is loose (contact failure).
Correct the wiring.
Incorrect settings
(1) Check the set pressure.
(2) Check that the hysteresis range is
not too narrow.
(3) Check the delay time setting.
Check if the delay time is too
short.
(1) Reset the pressure
setting.
(2) Increase the hysteresis.
(3) Reset the function
settings.
Product failure
Replace the product.

SMC Networks ZSE20A Specifications

General

Brand	SMC Networks
Model	ZSE20A
Category	Switch
Language	English