KEYENCE IV Series - Manual (Page 277)

A-21 - IV Series User's Manual (Monitor) -
A
Troubleshooting
Symptom Check point Remedy
Reference
page
An external trigger cannot
be input.
Is the trigger condition set to
[External]?
Select [External] in Trigger
Options.
4-8
Is the input line correctly
connected?
Correctly connect to the
external devices.
2-12
Has the input setting been
made correctly?
Make the input line and input
settings correctly in [Input
Settings].
6-26
Has the Polarity been correctly
set?
When the NPN is selected
in the Polarity, the circuit
becomes a non-voltage input
circuit. When the PNP is
selected in the Polarity, the
circuit becomes a voltage input
circuit. Check the cables.
6-28
The program number cannot
be changed with the input
line.
Has the switching method for
the programs been correctly
set?
Set the switching method for
the programs to [External IN]. 6-42
Has the input line been
correctly connected?
Correctly connect to the
external devices.
2-12
Has the input setting been
correctly set?
Set the input line and input
settings correctly in [Input
Settings].
6-26
Has the Polarity been correctly
set?
When the NPN is selected
in the Polarity, the circuit
becomes a non-voltage input
circuit. When the PNP is
selected in the Polarity, the
circuit becomes a voltage input
circuit. Check the cables.
6-28
The monitor and sensor
cannot be connected to. Check the cables and settings.
Refer to “Remedy when the
Monitor cannot be Connected
with the Sensor” (Page A-28).
A-28
Image data cannot be
transferred via FTP.
Check the cables and settings.
Refer to “Remedy when data
transfer via FTP is unavailable”
A-38