KEYENCE IL Series - Manual (Page 129)

A-3 IL-E
Append
ix
The values are
incorrect.
Is the object tilted or
located in an incorrect
position?
Adjust the object to correctly fall within the
measurement range.
Is the mounting position
deviated?
Correctly mount the sensor head.
“Mounting the Sensor Head” (page 2-8)
Is dirt or dust stuck to the
laser transmitter/receiver?
Remove the dirt or dust.
"Influence of dirt" (page 5)
Is dust, dirt, water or oil
stuck to the object?
Remove the dust, dirt, water, oil, etc.
"Influence of dirt" (page 5)
Does the ambient
operating temperature
significantly change?
Keep the ambient operating temperature constant.
Is the zero shift function
correctly set?
Configure the settings correctly.
“Zero Shift Function (Shifting the Internal
Measurement Value (R.V.))” (page 3-18)
Is the shift target value set
correctly?
Is the zero shift input wire
connected correctly?
Is the calibration complete
correctly?
Redo the calibration.
“Calibration Function” (page 4-45)
Are the output wire and
input wire short-circuited?
Check the wiring.
“Sensor Amplifier Wiring” (page 2-6)
Button
operations are
ignored.
Is the key lock function
being used?
Cancel the key lock function.
“Key Lock Function” (page 3-21)
The connected communication unit <DL-RS1A> read/
write setting switch is set to RW.
Set the read/write setting switch to R.
"RS-232C Communication Unit DL-RS1A User's Manual"
The judgment
output cannot
be output
properly.
Is the output polarity set
correctly?
Make the settings for NPN output and PNP output.
“Initial Reset (Initialize)” (page 3-8)
Is the unit properly wired? Wire the unit correctly.
“Output Circuit Diagram” (page 5-5)
Is the tolerance setting
value set correctly?
Set the tolerance setting value.
“Setting the Tolerance Setting Value” (page 3-10)
Is the output state (N.O./
N.C.) set correctly?
Set the output state.
“5. Output State” (page 4-14)
The analog output
cannot be output
properly.
Is the unit properly wired? Wire the unit correctly.
“Output Circuit Diagram” (page 5-5)
Is the type of analog
output (current/voltage)
set correctly?
Set the type of analog output.
“Initial Reset (Initialize)” (page 3-8)
The bank cannot be
switched by the
external input
Is the bank switching
method set correctly?
Set the bank switching method.
“12. Bank Switching Method” (page 4-35)
The sensor
head indicator
does not
change.
Is the power voltage used
within the specification
range?
Use the power voltage within the specification range.
“Specifications” (page 5-2)
Is there an error message
on the sensor amplifier?
Take adequate measures according to the error
messages.
“Error Displays and Corrective Actions” (page A-4)
Problem Check points Corrective actions