Condition For Unfixed Output Data - Panasonic HL-D3 Series User Manual

If ON status of the alarm indicator (controller red indicator) or alarm output
continues, check the following.
Also refer to "Chapter 7 Troubleshooting".
<Alarm ON is continued and recovery cannot be made at all>
 Loosening or disconnection of the sensor head cable (extension cable)
 Check if the workpiece position is out of the measuring range. (Abnor-
mal measurement value)
[Action] Set the distance between the sensor head and the workpiece
<Alarm ON/OFF is repeated>
 Check if the workpiece surface status (reflection rate) is not
changed.(Excessive/insufficient detected light intensity)
→ At a surface close to the black surface or mirror surface, sensitiv-
ity may be insufficient.
[Action] Adjust sensitivity so that the measurement conditions may
 Check if the workpiece installation status (surface slope) is not
changed.(Insufficient detected light intensity)
→ When slope of the workpiece is large, sensitivity is insufficient.
[Action] Reduce slope variation and adjust sensitivity according to
 Check if there is strong noise source around the area. (Communicat ion
error between head controller)
→ Data communication of the cable may be affected.
[Action] Action by noise reduction, confirmation of grounding, noise

4-6-3 Condition for Unfixed Output Data

When "SEND" is executed or image is acquired by changing the setting con-
ditions on the HL-D3SMI, the measurement is temporarily stopped and start-
ed again. Immediately after restart, the measurement data is unfixed during
the sampling cycle x average number of movements (*1). The measurement
value is fixed (999.999 mm) and the all judgment outputs (HI/GO/LO of
OUT1 to OUT3) are OFF.
When the laser is OFF, unfixed status also occurs. Immediately after laser ON,
unfixed status continues for the sampling cycle x average number of move-
ments (*1).
*1: In the external synchronous mode, the output data is unfixed for the p e-
riod of the external trigger input of (number of moving average + 1) times.
to 50 mm.
be the optimum.
the slope.
filter, etc.
4-139
Chapter 4 Description of Functions
4