7
ZX SERIESZX SERIES
Operation
■ Linear Output
The default linear output settings are listed in the following table. These settings are set at the factory and also after initializing
the settings.
Note: Use the monitor focus function when setting the output voltage to
±5 VDC, 0 to 5 VDC or 1 to 5 VDC instead of ±4 VDC.
■
Outputs
Discrimination Outputs
There are three discrimination outputs: HIGH, PASS, and LOW.
The following table and illustration show the timing of each output.
Threshold Values
The threshold values form the boundaries between the HIGH,
PASS, and LOW outputs for the measured value.
There are two threshold values: The HIGH threshold and the
LOW threshold. The threshold values contain hysteresis.
Hysteresis
The hysteresis (hysteresis width) is the difference between the
operating and releasing values. If the hysteresis is too small, chat-
tering may occur. If it is too large, releasing may be difficult.
Default linear output setting Operation after setting reference incident level
Voltage output ±4 VDC
(See Note)
Incident level display None of beam intercepted 4 VDC
Entire beam intercepted −4 VDC
Intercepted amount display None of beam intercepted −4 VDC
Entire beam intercepted 4 VDC
Current output 4 to 20 mA
(See Note)
Incident level display None of beam intercepted 20 mA
Entire beam intercepted 4 mA
Intercepted amount display None of beam intercepted 4 mA
Entire beam intercepted 20 mA
Measured value Judgement outputs
Larger than or equal to HIGH threshold PASS → HIGH
Smaller than or equal to HIGH threshold − Hysteresis HIGH → PASS
Smaller than or equal to LOW threshold PASS → LOW
Larger than or equal to LOW threshold − Hysteresis LOW → PASS
Hysteresis
HIGH threshold
Measured value
LOW threshold
ON
HIGH output
Judgement Outputs
OFF
ON
OFF
ON
OFF
PASS output
LOW output
Releasing point
Operating point
Measured Value
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