KEYENCE SJ-F100W/100/010 - Manual (Page 29)

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Alarm Output Functions
This section describes the SJ-F100W/100/010's alarm output functions.
Alarm Output Functions
„ Alarm output function (ALARM)
The alarm indicator blinks (red) and an alarm signal
(control output (N.C.)) is output, for example, when
internal circuits are damaged or abnormal discharging
occurs. When an alarm signal is output, static
elimination is forcibly stopped.
Alarm output turns ON even in a static elimination
stopped state (including forced static elimination stop).
„ Ion level alarm output function (ION LEVEL)
The ion level alarm indicator lights and an alarm signal
(control output (N.O.)) is output when the amount of
generated ions drops due to dirty electrode needles, for
example. When an alarm signal is output, static
elimination is not stopped.
Alarm output can be adjusted in three stages by the ion
level alarm sensitivity switch according to the amount of
ions generated.
The default setting for the ion level alarm sensitivity
switch is L (Low).
The ion level serves as a guideline for learning when to
perform maintenance on the electrode needles. As
static elimination is continued, be sure to turn the power
OFF before starting maintenance on the electrode
needles.
„ Condition alarm output function (COND)
The condition alarm output indicator lights and an alarm
signal (control output (N.O.)) is output when static
elimination performance is influenced by the installation
environment (temperature, humidity, surrounding metal
objects, etc.) or when ions are absorbed by surrounding
metal objects. When an alarm signal is output, static
elimination is not stopped.
Alarm output can be adjusted in three stages by the
condition alarm sensitivity switch according to the
installation environment.
The default setting for the condition alarm sensitivity
setup switch is L (Low).
+
–
0
BALANCE ION
ION
LEVEL
COND
DISP
ALARM
H
M
L
H
M
L
ALARM
+
–
0
BALANCE ION
ION
LEVEL
COND
DISP
ALARM
H
M
L
H
M
L
Ion level alarm
sensitivity setup
switch
ION
LEVEL
+
–
0
BALANCE ION
ION
LEVEL
COND
DISP
ALARM
H
M
L
H
M
L
Condition alarm
sensitivity setup
switch
COND