Panasonic SF4D-A18 Instruction Manual page 132

Troubleshooting
[" " blinks]
Power supply voltage er-
ror
[" " lights]
Synchronization error
[" " blinks]
Emitter error
[" " blinks]
Effects of noise or power
supply, or internal circuit
failure.
[" " blinks]
Synchronization error
<Interlock indicator lights yellow>
The control output (OSSD 1 / 2) has been turned OFF by
interlock.
132
Cause
The voltage of the power sup-
plied to the device exceeds the
specified range.
Mismatch between synchroniza-
tion method and wiring.
Synchronization
+ wire (orange) or
synchronization
- wire (orange /
Line synchro-
black) is shorted
nization
or broken.
The emitter has
generated an er-
ror.
The beam axes
o f t h e t o p a n d
bottom ends are
not received.
Significant noise
Optical syn-
outside the speci-
chronization
fied range is be-
ing received.
Cable for series
connection has
failed.
Emitter is in lockout state.
The device is affected by noise
or the power supply.
An internal circuit has failed.
The other receiver connected in
series is locked out.
Cause
Make sure the power supply voltage conforms to
the specification.
The wiring and synchronization method (line syn-
chronization, 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".
Make sure that the synchronization + wire (or-
ange) and synchronization - wire (orange / black)
are connected correctly.
Check the operation of the emitter.
Make sure the beam axis of either the top end or
bottom end is received.
Check the noise environment of the device.
Replace the cable for series connection.
Check a digital indicator (yellow) of emitter.
Check the noise environment of the device.
Check the connections, supply voltage, and power
supply capacity, and check for scattered light.
If you are extending the synchronization + wire
(orange) and synchronization - wire (orange /
black) using a cable other than the special-use
cable, use a 0.2mm
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.
Check the digital indicator (yellow) of the other re-
ceiver connected in series.
Perform a reset [Open test / reset input wire (pink)
→ Short to 0V or +V → Open].
If the interlock function is not needed (When auto
reset is used), open the interlock setting input wire
(pale purple), and isolate.
© Panasonic Industrial Devices SUNX Co., Ltd. 2020
Remedy
2
or more twisted pair cable.
Remedy