Panasonic SE4D Series Instruction Manual page 61

<For parallel connection>
In case of parallel connection, for the control output (OSSD 1 / 2), only the set of which light is
blocked turns OFF.
<Reference>
The emitter / receiver indicators indicate the output status.
The following figure shows the status of the indicators with Slave side 1 in light blocked status.
Master side
Synchronization wire
Interference prevention wire
Master side: Light received status
<Emitter>
Beam-axis alignment
indicator (Green)
Operation indicator (Green) (Note 1)
Incident light intensity indicator
(Green)
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 3)
NPN indicator
Emission intensity control indicator
Emission halt indicator
<Receiver>
Beam-axis alignment
indicator (Green)
OSSD indicator (Green)
Incident light intensity indicator
Fault indicator
Digital error indicator
PNP indicator (Orange) (Note 3)
NPN indicator
Function setting indicator
Interlock indicator
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) When the devices are connected in parallel, the bottom of the digital error indicator on the slave side
lights up in red. However, when the slave side is connected in series, only the indicator of the main sen-
sor lights up.
3) 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.
Slave side 1
Synchronization wire
: Lights up in red : Lights up in green
Slave side 1: Light blocked status
<Emitter>
Beam-axis alignment
indicator (Red)
Operation indicator (Red) (Note 1)
Incident light intensity indicator
Fault indicator
Digital error indicator (Red)
(Note 2)
PNP indicator (Orange) (Note 3)
NPN indicator
Emission intensity control indicator
Emission halt indicator
<Receiver>
Beam-axis alignment
indicator (Red)
OSSD indicator (Red)
Incident light intensity indicator
Fault indicator
Digital error indicator (Red)
(Note 2)
PNP indicator (Orange) (Note 3)
NPN indicator
Function setting indicator
Interlock indicator
Synchronization wire
Interference prevention wire
: Lights up in orange
Slave side 2: Light received status
<Emitter>
Beam-axis alignment
indicator (Red)
Operation indicator (Green) (Note 1)
Incident light intensity indicator
(Green)
Fault indicator
Digital error indicator (Red)
(Note 2)
PNP indicator (Orange) (Note 3)
NPN indicator
Emission intensity control indicator
Emission halt indicator
<Receiver>
Beam-axis alignment
indicator (Red)
OSSD indicator (Green)
Incident light intensity indicator
Fault indicator
Digital error indicator (Red)
(Note2)
PNP indicator (Orange) (Note 3)
NPN indicator
Function setting indicator
Interlock indicator
Slave side 2
: Turns OFF
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