17
Setting the Pass / Fail Criteria
This section describes how to set the pass / fail criteria. There are two ways of setting, direct
teaching and manual setting.
Setting by Direct Teaching
Direct teaching uses real screws and workpieces. It measures the pulses of motor rotation from
when the screwdriver starts turning to when it reaches the torque-up. The maximum and the
minimum measurements of pulses are set as the thresholds for pass / fail. Considering the
measurement errors, you can set allowable ranges on thresholds.
〜90
91〜131
99〜119
132〜
Allowable range: -10%
Allowable range: +10%
The number of pulses during teaching
Fail
PASS
Fail
Pulse
Pass / fail range
Example: Minimum pulse = 100, Maximum pulse = 120, Allowable range = +/-10%
Caution
◦
Do not use the conditions (i.e. screws, workpieces, etc.) for teaching different from those of
real operation. Otherwise, it may cause larger errors.
◦
Before teaching you need to define the home position by fastening a screw.
1
Press and hold the F2 button.
◦
The Fail and PASS indicators start blinking.
PASS
Fail
M
▶
PASS
Fail
M
Summary of Contents for BLG-4000BC2
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