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Troubleshooting
258
ZW-7000/5000
User's Manual
Measurement
error
[DARK] is displayed on
the main digital.
Amount of the light is insufficient.
Set the Exposure time to be long or
reduce Noise Cut Level within the
range of Noise Level.
−
The target is not in the
measurement range.
Check the measurement range and
measurement area settings of the
Sensor Head, then place the target.
−
The connection of the Sensor
Controller and the Sensor Head or
the extension fiber cable is not
normal.
Confirm the connection of fiber cable. p.58
Calibration of Sensor Head is not
performed correctly.
Retry to execute the calibration of
Sensor Head.
p.66
Some contaminants may be
adhered.
Clean the fiber cable.
p.58
[BRIGHT] is displayed on
the main digital.
Light amount is saturated.
Short the Exposure time.
p.122
[NO.SRFC] is displayed
on the main digital.
There is no surface to measure.
Change the settings so as to
measure a surface that has been
detected.
p.128
The input values of the calculation
formula are not applied.
Confirm the TASK measurement
value set in parameter X and Y.
−
[H.CALIB] is displayed on
the main digital.
The calibration of Sensor Head is
not performed correctly.
Perform the calibration of the Sensor
Head again.
p.35
The measurement value
is unstable even if the
workpiece and/or Sensor
head is stationary.
A measurement value is
output even if there is no
workpiece in the
measurement area.
Control edge in Exposure time or
surface setting for measurement is
not correct.
Change the Control edge or surface
setting in Exposure time from Peak to
each surface, 1 to 4.
p.122
p.128
Calibration of Sensor Head is not
performed correctly.
Retry to execute the calibration of
Sensor Head.
p.66
There is a problem with the
connection between the Sensor
Controller and the Sensor Head or
the extension fiber cable.
Check the fiber cable connections.
p.58
The surface of fiber cable is dirty.
Clean the surface.
p.58
Intense ambient light is present.
• Shield the ambient light.
• Shorten the Measurement cycle or
increase the background removal
level so it is higher than the Noise
level.
Receiving light from the opposite
Sensor.
Adjust the mounting position of
Sensor Head so as not to receive the
light from the opposite Sensor.
p.51
When measuring on a high-
reflectivity object out of the
measurement range, this cause a
wrong operation.
Shorten the Measurement cycle
(Exposure time) or increase the
background removal level so it is
higher than the Noise level.
−
Error type
Phenomenon
Cause
Countermeasure
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