Panasonic SF4D Series, Instruction Manual

Page: 138 / 176

Troubleshooting
© Panasonic Industrial Devices SUNX Co., Ltd. 2017 138
Cause Remedy
[“ ” lights]
Synchronization error
Mismatch between synchroniza-
tion method and wiring.
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”
.
Line synchroni-
zation
Synchronization
+ wire (orange) or
synchronization -
wire (orange / black)
is shorted or broken.
Make sure that the synchroni wire (or-
ange) and synchronization - wire (orange / black)
are connected correctly.
The emitter has
generated an error. Check the operation of the emitter.
O p t i c a l s y n -
chronization
The beam axis
of the top end
or bottom end
is not received.
Make sure the beam axis of either the top end or
bottom end is received.
S i g n i f i c a n t
noise outside
the specified
range is being
received.
Check the noise environment of the device.
Cable for series
connection has
failed.
Replace the cable for series connection.
[“ ” blinks]
Emitter error
Emitter is in lockout state. Check a digital indicator (yellow) of emitter.
[“ ” blinks]
Effects of noise or power
supply, 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 power
supply capacity, and check for scattered light.
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
The other receiver connected in
series is locked out.
Check the digital indicator (yellow) of the other re-
ceiver connected in series.
<Upper application indicator and lower application indicator light blue, and OSSD indicator lights red>
Cause Remedy
Beam received with fixed blanking function valid
Check installation conditions and turn the power
OFF then ON.
When the floating blanking function is valid, the blocked
beam is lower than the lowest beam.
<Interlock indicator lights yellow>
Cause Remedy
The control output (OSSD 1 / 2) has been turned OFF by in -
terlock.
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.