Panasonic SF4B-F31G(V2) Instruction Manual page 58

<For series connection>
In case of series connection, if any of the sets is in light blocked status, the control output (OSSD
1 / 2) turns OFF.
<Reference>
The emitter / receiver indicators indicates the output status.
The following figure shows the status of the indicators with Sub sensor 2 in light blocked status.
Sub sensor 3
Sub sensor 2
Main sensor 1
Synchronization wire
Notes: 1) Since the color of the operation indicator changes according to the ON / OFF state of the control output
(OSSD 1 / 2), the operation indicator is marked as "OSSD" on the device.
2) The status of the emitter / receiver indicators during operation above shows the case in PNP output
setting mode. In case of NPN output setting mode, the NPN indicator (orange) lights up.
58
: Lights up in red
Sub sensor 3: Light received status
<Emitter>
Beam-axis alignment
indicator (Red)
Operation indicator (Red) (Note 1)
Incident light intensity indicator
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 2)
NPN indicator
Emission intensity control indicator
Emission halt indicator
Sub sensor 2: Light blocked status
<Emitter>
Beam-axis alignment
indicator (Red)
Operation indicator (Red) (Note 1)
Incident light intensity indicator
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 2)
NPN indicator
Emission intensity control indicator
Emission halt indicator
Main sensor 1: Light received status
<Emitter>
Beam-axis alignment
indicator (Red)
Operation indicator (Red) (Note 1)
Incident light intensity indicator
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 2)
NPN indicator
Emission intensity control indicator
Emission halt indicator
© Panasonic Industrial Devices SUNX Co., Ltd. 2017
: Lights up in orange
<Received>
Beam-axis alignment
indicator (Red)
OSSD indicator (Red)
Incident light intensity indicator
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 2)
NPN indicator
Function setting indicator
Interlock indicator
<Received>
Beam-axis alignment
indicator (Red)
OSSD indicator (Red)
Incident light intensity indicator
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 2)
NPN indicator
Function setting indicator
Interlock indicator
<Received>
Beam-axis alignment
indicator (Red)
OSSD indicator (Red)
Incident light intensity indicator
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 2)
NPN indicator
Function setting indicator
Interlock indicator
: Turns OFF