
78
© Panasonic Industrial Devices SUNX Co., Ltd. 2017
5-2 Troubleshooting of Receiver
<All indicators are OFF>
Cause
Remedy
Power is not being supplied.
Check that the power supply capacity is sufficient.
Connect the power supply correctly.
Supply voltage is out of the specified range.
Set the supply voltage correctly.
Connector is not connected securely.
Connect the connector securely.
<Fault indicator (yellow) lights or blinks>
Cause
Remedy
[Digital error indicator: ]
Setting data error of this device
Series connection is in-
correct.
Check that the cable for series connection does
not short-circuit, or is connected to the correct
position (emitter for emitter, receiver for receiver).
In case the handy controller (
SFB-HC
) (optional)
is applied, reset the function.
Noise is out of the specified
range.
Check the noise status around this device.
In case the handy controller (
SFB-HC
) (optional)
is applied, reset the function.
Internal error
Replace this device.
[Digital error indicator: ]
System error between emitter
and receiver
Systems are different be-
tween emitter and receiver.
Set the same value to the numbers of emitter and
receiver and that of beam channel, and the shield
wires.
[Digital error indicator: ]
Series connection error
The serial signal short-circuits
or comes down.
Check if the end cap has been fitted properly.
Check that the cable for series connection does
not short-circuit, or is connected to the correct
position (emitter for emitter, receiver for receiver).
Check the error contents of the device connected
by the cable for series connection.
Any of the main / sub sensor
is in error.
[Digital error indicator: ]
No. of total units / No. of total
beam channels error
No. of total units / No. of total
beam channels is out of the
specified range.
Set the condition of the series connection within
the specification.
Refer to “
2-5-6 Series Connection
.”
[Digital error indicator: ]
Extraneous light error
Extraneous light is entering
or light from other model is
entering.
When the power is ON, prevent any extraneous
light from entering the receiver.
If the extraneous light is coming from this device,
conduct “
2-3-4 Device Placement
” or “
3-4 Inter
-
ference Prevention Function
.”
[Digital error indicator: , ]
Control output (OSSD 1 / 2)
error
Control output 1 (OSSD 1)
wire (black) and control out-
put 2 (OSSD 2) wire (white)
short-circuits with 0V or +V.
Wire the control output 1 (OSSD 1) wire (black) or
control output 2 (OSSD 2) wire (white) correctly.
Refer to “
2-5 Wiring
.”
Current value should be within the specified
control output 1 (OSSD 1) wire (black) or control
output 2 (OSSD 2) wire (white).
Refer to “
6-1 Specifications
.”
Control output 1 (OSSD 1)
wire (black) or control output
2 (OSSD 2) wire (white) short-
circuit respectively, or short-
circuits with other I/O wires.
Excessive incoming current
flows in the Control output 1
(OSSD 1)
wire (black) and
control output 2 (OSSD 2)
wire (white).
Output polarity setting wire
(shield) and control output 1
(OSSD 1) wire (black) and
control output 2 (OSSD 2) wire
(white) are not correctly wired.
Wire the output polarity setting wire (shield) cor-
rectly. (0V: PNP output, +V: NPN output)
Wire the control output 1 (OSSD 1) wire (black) or
control output 2 (OSSD 2) wire (white) correctly.
Refer to “
2-5 Wiring
.”
Output circuit error
Output circuit is damaged. Replace this device.
[Digital error indicator: ]
Output polarity setting wire
(shield) error
Output polarity setting wire
(shield) comes down or short-
circuits with other I/O wires.
Output polarity setting wire
(shield) connection of emitter
/ receiver is incorrect.
Wire the output polarity setting wire (shield) cor-
rectly. (0V: PNP output, +V: NPN output)
Wire the output polarity setting wire (shield) of
the receiver correctly.