Troubleshooting
© Panasonic Industrial Devices SUNX Co., Ltd. 2020
130
<Digital indicator shows a blinking or steadily lit yellow number>
Cause
Remedy
[“ ” lights]
Error in device settings.
Internal error
Contact our office.
[“ ” blinks]
Error in the number of beam
channels
Line
synchronization
The device
is affected by
noise or the
power supply.
An internal
c i r c u i t h a s
failed.
• Check the noise environment of the device.
• Check the connections, supply voltage, and
power supply capacity.
• Replace the device.
Optical
synchronization
Scattered light
is received,
o r l i g h t
emitted from
a d i f f e r e n t
m o d e l i s
received.
• Make sure that the receiver will not receive
scattered light at the time of power ON.
• Light from a different model set to the same
frequency may be received. Change the setting
of the DIP switches 1/2 to a different frequency.
• Follow the instructions in
Mutual Interference by Device Placement”
[“ ” blinks]
Series connection error, er-
ror in total number of beam
channels
The number of sensors in se-
ries connection exceeds the
specified limit.
Limit the number of sensors in series connection
to 5 or less.
The total number of beam
channels of the sensors in
series connection exceeds
the specified limit.
Limit the total number of beam channels to 256
or less.
Incorrect emitter and receiver
connection when connected
in a series connection.
Connect emitters to emitters and receivers to re-
ceivers using a series connection cable.
In a series connection, the
DIP switches 1 / 2 (synchro-
nization method) are not all
set to the same state.
Set all DIP switches 1 / 2 (synchronization meth-
od) to the same state.
End cap is not attached.
Make sure the end cap is installed correctly.
Cable for series connection is
disconnected.
• Make sure the cable for series connection is
connected correctly.
• Replace the cable for series connection.
Another error has generated. Check the operation of other sensors in series
connection.
[“ ” blinks]
Emitter and receiver system
mismatch.
The emitter system and re-
ceiver system do not match.
Make sure the beam pitch, number of sensors
and number of beam channels of the emitter and
receiver match.
Wire the output polarity setting / lockout release
input wire (pale blue) of the emitter and the re-
ceiver in the same way.
• Using PNP output: Connect to 0V (blue)
• Using NPN output: Connect to + V (brown)
[“ ” blinks]
Scattered light error.
Scattered light is received,
or light emitted from a differ
-
ent model No. is received.
After turning on the power, make sure that the
receiver does not receive scattered light.
If light emitted from a different model No. is re-
ceived, follow the instructions in
Summary of Contents for SF4D-*-01 Series
Page 2: ... Panasonic Industrial Devices SUNX Co Ltd 2020 2 MEMO ...
Page 6: ... Panasonic Industrial Devices SUNX Co Ltd 2020 6 MEMO ...
Page 120: ...Functions Panasonic Industrial Devices SUNX Co Ltd 2020 120 MEMO ...
Page 134: ...Troubleshooting Panasonic Industrial Devices SUNX Co Ltd 2020 134 MEMO ...
Page 168: ... Panasonic Industrial Devices SUNX Co Ltd 2020 168 MEMO ...