Test Input Function - Panasonic SF4C Series Instruction Manual

3-3 Test Input Function

This function enables checking of the device operation by forcibly turning ON / OFF the control output (OSSD
1 / 2) of the receiver with the emitting light is received.
The selection of output ON / OFF is available by applying the test input / reset input wire (pink).
Interlock function Test input / Reset input wire (pink)
Manual reset
Connect to +V for PNP output
Connect to 0V for NPN output
Auto-reset
Connect to +V for PNP output
Connect to 0V for NPN output
When the test input is valid, the control output (OSSD 1 / 2) becomes OFF.
By using this function, malfunction due to extraneous noise or abnormality in the control output (OSSD 1 / 2)
and the auxiliary output can be determined even from the equipment side.
In case of PNP output, normal operation is restored when the test input / reset input wire (pink) is connected
to +V (for manual reset: open).
In case of NPN output, normal operation is restored when the test input / reset input wire (pink) is connected
to 0V (for manual reset: open).
<Timing chart>
Open (OFF)
Test input /
Short-circuit
Reset input
(ON)
ON
Control output
(OSSD 1 / 2)
OFF
Do not use the test input function for the purpose of stopping the machine in which the SF4C series is
installed. Failure to do so could result in death or serious injury.
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Test input
Open Invalid
Valid
Open Valid
Invalid
15ms or less
Control output
(OSSD1 / 2) status
ON
OFF
OFF
ON
90ms or less
Functions
51