Panasonic SF4D Series, Instruction Manual

Page: 134 / 176

Troubleshooting
© Panasonic Industrial Devices SUNX Co., Ltd. 2017 134
Cause Remedy
[“ ” lights]
Synchronization error
Mismatch between synchro-
nization method and wiring.
The wiring and synchronization method (line
synchronization, optical synchronization) must be
made to match. To change the synchronization
method, refer to “3-9 DIP Switch Settings” .
For wiring, refer to
“2-5 Wiring”
.
Line synchro-
nization
Synchroniza-
t i o n + w i r e
( o r a n g e ) o r
synchronization
- wire (orange /
black) is short-
ed or broken.
Make sure that the synchroni wire (or-
ange) and synchronization - wire (orange / black)
are connected correctly.
The receiver
h a s g e n e r -
ated an error.
Check the operation of the receiver.
Optical syn -
chronization
S i g n i f i c a n t
noise outside
the specified
range is be-
ing received.
Check the noise environment of the device.
C a b l e f o r
series con-
nection has
failed.
Replace the cable for series connection.
[“ ” blinks]
Emitter error
The other emitter connected
in series is locked out.
Check the digital indicator (yellow) of the other
emitter connected in series.
[“ ” blinks]
Effects of noise or power sup-
ply, or internal circuit failure.
The device is affected by
noise or the power supply.
An internal circuit has failed.
Check the noise environment of the device.
Check the connections, supply voltage, and pow-
er supply capacity.
If you are extending the synchroni wire
(orange) and synchronization - wire (orange /
black) using a cable other than the special-use
cable, use a 0.2mm
2
or more twisted pair cable.
If the problem persists, check the number that is
blinking in the digital indicator (yellow) and the
number of times it blinks, and contact our office.
[“ ” blinks]
Synchronization error
Receiver is in lockout state. Check an digital indicator (yellow) of receiver.
<Test indicator (orange) lights up>
Cause Remedy
Test state activated. (Error
state or interlock setting er-
ror.)
Digital indicator (yellow) is
blinking.
Check the number shown in the digital indicator.
Auto reset was selected with
the test / reset input wire
(pink) open.
<Using PNP output>
Connect the test / reset input wire (pink) to + V
(brown).
<Using NPN output>
Connect the test / reset input wire (pink) to 0V
(blue).
Manual reset was selected
with the test / reset input wire
(pink) connected to 0V or +V.
Open the test / reset input wire (pink).
Take action as indicated in the troubleshooting for the emitter and receiver. If the problem per-
sists, contact our office.