Parallel Connection - Panasonic SF2B Series Instruction Manual

● As the connector for series con-
nection is not incorporated in the
main sensor such as SF2B-H8□ or
SF2B-A4□, it cannot be connected
in series.
● The connector for series connec-
tion is not incorporated in the sub
sensors exclusive for series con-
nection such as SF2B-H8SL or
SF2B-A4SL.
In case of connecting three sets of
sensors in series, it cannot be used
in the middle position.

2-5-5 Parallel Connection

[Connectable up to 2 sets of the devices]
This is the configuration for connecting multiple sets of emitter and receiver facing each other
in parallel. It is used when there are two dangerous parts and each dangerous part can be en-
tered from only one direction. For the control output (OSSD 1 / 2), only the set of which light is
blocked turns OFF.
Connect the interference prevention lines using the bottom cap cable SF2B-CB05-B (4-core)
(optional) on the parallel connection side.
● Make sure that the frequency selector at the insertion slot
of bottom cap cable on this device is set at the "1" position
for master side sensor, "2" for slave side sensor (on both
emitter and receiver). If they are in the position other than
the above, the device may not operate properly.
● If the master side sensor breaks due to any reason, the
slave side sensor goes into an operation halt state. In order
to check the operation of the slave side sensor, set the fre-
quency selector to "1". If only the slave side sensor breaks,
the master side sensor operates correctly.
For parallel connection, connect the one receiver to the other connection using
the interference prevention line as shown in the next page. Wrong connection
could generate the non-sensing area, resulting in death or serious injury.
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Emitter
Sub sensor
Main sensor
(this device)
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
Receiver
Can be used for
SF2B-H8SL
SF2B-A4SL
Cannot be used for
SF2B-H8SL
SF2B-A4SL
Cannot be used for
SF2B-H8□
SF2B-A4□
Frequency selector