SUNX Limited MJE-SF4B01 No.0005-03V
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79
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Chapter 5 Troubleshooting
<Reference>
Check the wiring.
Check the power supply voltage and the power supply capacity.
5-1
Troubleshooting of Emitter
<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
Series connection is in-
correct.
Check that the series connection cable does not
short-circuit, or is connected to the correct position
(emitter for emitter, receiver for receiver).
Noise is out of the speci-
fied range.
Check the noise status around this device.
[Digital error indicator: ]
Setting data of this device error
Internal error
Replace this device.
[Digital error indicator:
]
System between emitter and
receiver error
Systems are different
between emitter and
receiver.
Set the same value to the Nos. of emitter and re-
ceiver and that of beam channel, and the shield
wires.
The serial signal
short-circuits or comes
down.
[Digital error indicator:
]
Series connection error
The other series connec-
tion sensor is in error.
Check if the end cap has been fitted properly.
Check that the series connection cable does not
short-circuit, or is connected to the correct position
(emitter for emitter, receiver for receiver).
Check the error contents of the sensor connected
by the series connection cable.
[Digital error indicator:
]
Total unit No. / total beam
channel No. error
Total unit No. / total beam
channel No. 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:
]
Interlock setting error
Voltage level of interlock
setting input wire, or
emission halt input / reset
input wire is unstable.
Wire the interlock setting input wire and emission
halt input / reset input wire correctly.
Muting lamp output
short-circuits with +V or
0V.
Muting lamp output
short-circuits with other
I/O wires.
Excessive incoming cur-
rent flows in the muting
lamp output.
Wire the control output (OSSD 1, OSSD 2) wires
correctly.
Refer to ‘
2-5 Wiring
’.
Current value should be within the specified control
output (OSSD 1, OSSD 2).
Refer to ‘
6-1 Specifications
’.
Output polarity setting
wire (shield) and muting
lamp output are not cor-
rectly wired.
Wire the output polarity setting wire (shield) cor-
rectly. (+V: NPN output, 0V: PNP output)
Wire the shield wire of the emitter correctly.
[Digital error indicator:
,
]
Muting lamp error
Output circuit error
Output circuit is damaged. Replace this device.
[Digital error indicator:
]
Shield wire error
Shield wire comes down
or short-circuits with other
I/O wires.
Shield wire connection of
emitter / receiver is incor-
rect.
Wire the output polarity setting wire (shield) cor-
rectly. (+V: NPN output, 0V: PNP output)
Wire the shield wire of the receiver correctly.
