Panasonic SF4D Series Instruction Manual page 138

Troubleshooting
[" " lights]
Synchronization error
[" " blinks]
Emitter error
[" " blinks]
Effects of noise or power
supply, or internal circuit
failure.
[" " blinks]
Synchronization error
<Upper application indicator and lower application indicator light blue, and OSSD indicator lights red>
Beam received with fixed blanking function valid
When the floating blanking function is valid, the blocked
beam is lower than the lowest beam.
<Interlock indicator lights yellow>
The control output (OSSD 1 / 2) has been turned OFF by in-
terlock.
138
Cause
Mismatch between synchroniza-
tion method and wiring.
S y n c h r o n i z a t i o n
+ wire (orange) or
synchronization -
Line synchroni-
wire (orange / black)
zation
is shorted or broken.
The emitter has
generated an error.
The beam axis
of the top end
or bottom end
is not received.
S i g n i f i c a n t
noise outside
O p t i c a l s y n -
t he s p e c i f i e d
chronization
range is being
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
Cause
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.
Check installation conditions and turn the power
OFF then ON.
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. 2017
Remedy
2
or more twisted pair cable.
Remedy
Remedy