Panasonic WUME-SF4D-4 Instruction Manual page 136

Troubleshooting
<Digital indicator shows a blinking or steadily lit yellow number>
[" " lights]
Error in device settings.
[" " blinks]
Series connection error, er-
ror in total number of beam
channels
[" " blinks]
Emitter and receiver system
mismatch.
[" " blinks]
Scattered light error.
[" ", " " blinks]
Control output (OSSD 1 / 2)
error.
136
Cause
Error in settings.
Internal error
The number of sensors in se-
ries connection exceeds the
specified limit.
The total number of beam
channels of the sensors in
series connection exceeds
the specified limit.
Incorrect emitter and receiver
connection when connected
in a series connection.
In a series connection, the
DIP switches 1 / 2 (synchro-
nization method) are not all
set to the same state.
End cap is not attached.
Cable for series connection is
disconnected.
Another error has generated.
The emitter system and re-
ceiver system do not match.
Scattered light is received,
or light emitted from a differ-
ent model No. is received.
The control output 1 (OSSD
1) wire (black) or the con-
trol output 2 (OSSD 2) wire
(white) is shorted to 0V or +V. Connect the control output 1 (OSSD 1) wire
The control output 1 (OSSD 1)
wire (black) and control output
2 (OSSD 2) wire (white) are
shorted to each other, or to
another input / output wire.
Excessive current is flowing
in the control output 1 (OSSD
1) wire (black) or control out-
put 2 (OSSD 2) wire (white).
I f y o u u s e d t h e c o m m u n i c a t i o n m o d u l e
SF4D-TM1 (option) and Configurator Light Cur-
tain software, initialize the function.
Contact our office.
Limit the number of sensors in series connection
to 5 or less.
Limit the total number of beam channels to 256
or less.
Connect emitters to emitters and receivers to re-
ceivers using a series connection cable.
Set all DIP switches 1 / 2 (synchronization meth-
od) to the same state.
Make sure the end cap is installed correctly.
• Make sure the cable for series connection is
connected correctly.
• Replace the cable for series connection.
Check the operation of other sensors in series
connection.
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)
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 "2-3-4-4 Pre-
venting Mutual Interference by Device Place-
ment".
(black) and the control output 2 (OSSD 2) wire
(white) to the safety relay unit, external device
(forcible guide relay or magnetic conductor),
safety controller, or safety PLC.
The current values of the control output 1 (OSSD
1) wire (black) and the control output 2 (OSSD 2)
wire (white) must be within the specified range.
© Panasonic Industrial Devices SUNX Co., Ltd. 2017
Remedy