Phenomena Causes Measures
Input signal
cannot be off
Leakage current of an
external device
(if operating by
proximate switch and
others).
l Connect a proper resistance or
capacitor so that the voltage
between terminals of input module is
less than the return voltage.
l CR value is determined by the value
of leakage current.
l Recommended value C : 0.1 ~
0.47µF
R : 47 ~ 120Ω (1/2W)
l Alternatively, separate a circuit
completely and install another
display circuit.
Input signal
cannot be off (it
must be that a
neon lamp is still
on)
Leakage current of an
external device (if
operating by a limit
switch with neon
lamp).
Input signal
cannot be off
Leakage current from
the capacity between
wires of wiring cable.
l Install the power on an external
device, as in the following figure.
Input signal
cannot be off
Leakage current of an
external device (if
operating by a switch
with LED mark).
l Connect a proper resistance so that
the voltage between input module
terminal and common terminal is
higher than off voltage, as in the
following figure.
l Circulating
current by using
l Change plural to singular power.
l Connecting to a circulating current
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