Chapter 3 Functions; Self-Diagnosis Function; Interlock Function - Panasonic SF4B-H12C Instruction Manual

3-1 Self-diagnosis Function

This device incorporates the self-diagnosis function.
The self-diagnosis is carried out when the power is turned ON and while the operation periodically.
In case an abnormality is detected during self-diagnosis, the device is put in the lockout state at
that instant, and the control output (OSSD 1 / 2) is fixed at the OFF state. Refer to "Chapter 5
Troubleshooting" and remove the source of error.

3-2 Interlock Function

The selection of manual reset / auto reset is available by applying the Interlock setting input wir-
ing.
The interlock becomes available by selecting manual reset.
Interlock setting input wire (pale purple)
In case of selecting PNP output: connect to +V
In case of selecting NPN output: connect to 0V
● In case of using the interlock function, be sure there exists no operator inside of the dangerous area.
It causes death or serious injury without the confirmation.
● The reset switch shall be placed in area where all over the dangerous zone shall be compre-
hend and out side of the dangerous zone.
● If this device is used with the auto-reset, avoid an auto-restart after the safety output stop of the
system by using a safety relay unit, etc. (EN 60204-1)
Manual reset: The control output (OSSD 1 / 2) is not turned ON automatically even though
this device is received the light. When this device is reset in light received state
[open the emission halt input / reset input → short-circuit the device to 0V or +V
→ open], the control output (OSSD 1 / 2) is turned ON.
<Timing chart>
Open
Emission halt
(OFF)
input / Reset
Short circuit
input
(ON)
Light
Light received received
status Light
blocked
ON
Control output
(OSSD 1 / 2)
OFF
Auto reset: The control output (OSSD 1 / 2) is turned ON automatically when this device
receives the light.
<Reference>
It is possible to change the conditions for interlocking by using the handy controller (SFB-HC) (optional).
© Panasonic Industrial Devices SUNX Co., Ltd. 2014
Ramco National
Open
WARNING
14ms or less
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Chapter 3 Functions

Setting for interlock function
Manual reset
Auto reset
20ms or more
150ms or less
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