Fastus D4RF Series, User Manual

Page: 116 / 138

5-2
Error Displays
5-1 Error Displays
This section provides countermeasures for errors displayed during the execution of the teach function.
Error display Cause Countermeasure
Teach error 1
(Output indicator
blinks in
orange.)
While executing the teach function, the received
light amount is too small to set the threshold.
To increase the received light amount, carry out
the following countermeasures.
• Check whether the fiber unit has been inserted
correctly. (Check that the fiber insertion
indicators of the product are off.)
• Select “Response time” to be a longer mode.
(page 3-37)
• If using the product with “Emitter power”
lowered, increase the power. (page 4-18)
• Reduce the distance between the object and
the fiber unit. (When using a diffuse reflective
fiber unit.)
• Accurately adjust the light axis of the emitter
and receiver of the fiber unit. (When using a
through-beam fiber unit.)
Teach error 2
(Output indicator
blinks in
orange.)
While executing the teach function, the received
light amount is too large to set the threshold (the
saturated status). Possible causes are as
follows.
<When using a diffuse reflective fiber unit>
• The background is too close to the fiber unit.
• Too much light is reflected from the
background.
• “Emitter power” is too high.
<When using a through-beam fiber unit>
• The emitter and receiver of the fiber unit are
too close.
• “Emitter power” is too high.
To avoid the saturated status, lower the received
light amount by carrying out the following
countermeasures.
• Set “Emitter power” to “Auto” or lower, and
then retry the teach. (page 4-18)
• Increase the distance between the object and
the fiber unit. (When using a diffuse reflective
fiber unit.)
• Increase the distance between the emitter and
receiver of the fiber unit. (When using a
through-beam fiber unit.)
Teach error 3
(Output indicator
blinks in
orange.)
While executing the teach function of 2-point
mode, the difference between the received light
amounts of the first and second points was too
small to set the threshold. Possible causes are
as follows.
<When using a diffuse reflective fiber unit>
• The difference in received light amounts with
the object not present (the background) and
present was too small.
<When using a through-beam fiber unit>
• With an object present, the received light
amount does not decrease because the object
does not block the light sufficiently.
• Check whether light is received for the first
point and is not received for the second point
during execution of the teach function. (It is
also possible to execute the teach function
with light not received for the first point and
received for the second point.)
• To increase the difference in received light
amounts for the first and second points, adjust
the settings during the execution of the teach
function.
<When using a diffuse reflective fiber unit>
• Reduce the distance between the object and
the fiber unit.
• Increase the distance between the
background and the fiber unit.
• Avoid backgrounds that reflect a large
amount of light.
<When using a through-beam fiber unit>
• Adjust the product and the object to block
the light sufficiently.