Safety Input Function - Panasonic SF4С Series Instruction Manual

SF4C Safety light curtain

3.4 Safety Input Function

!
This function controls the control output (OSSD 1/2) of this device by receiving the detection
signal of a safety contact or a safety sensor which is connected to the safety input 1 wire (gray)
and the safety input 2 wire (gray/black).
The control output (OSSD 1/2) forcibly turns OFF when the safety input 1/2 is OFF.
NOTE
•
The temporal difference between the switching from OFF to ON and ON to
OFF during the output operation of the safety input should be 1s or less.
•
A safety contact can be connected with the factory setting of this device.
•
When connecting a safety sensor, the handy controller SFC-HC (optional) is
required. The maximum number of safety sensors which can be connected
to this device is 2 (only with version 2.1 of this device). For details see page
84.
Output operation of a safety contact and a safety sensor
As safety contact you can use an emergency stop switch with two NC (Normally Closed) contact
points. As safety sensor you can use another safety light curtain or a safety switch with
semiconductor output.
Safety contact
Safety sensor
NOTE
•
When using the PNP output type (or NPN output type) of this device take
care that also the safety sensor is of the same type (PNP/NPN output).The
control output becomes OFF, if you use the wrong type of sensor.
SEN TRONIC
AG
Produkte, Support und Service
DANGER!
When extending the cable of other SF4C series which is
connected to the safety input 1/2, use the exclusive cable.
The total cable length should be 40.5m or less (for each
emitter/receiver). If the total cable length is exceeding
40.5m, the device may malfunction, resulting in death or
serious injury.
NC (Normally Closed)
ON: Status is safe (emergency
stop switch, etc.)
ON: "Beam received" status (light
curtain, etc.)
ON: "Door closed" status (safety
switch etc.)
Rugghölzli 2
CH - 5453 Busslingen
ON-state operation
PNP output: Connect to
+V
NPN output: Connect to
0V
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
3.4 Safety Input Function
OFF-state operation
Open
mailbox@sentronic.com
www.sentronic.com
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