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10 Measuring the Screw Fastening Time
By setting the screw fastening time, it is possible to manage the length of screws to be used or screw fastening failure.
This function measures the maximum and minimum values of the screw fastening time and by updating the value an
optimum value can be found. Note that the screw length and electric screwdriver speed vary. Measure at least twice
and make the setting.
1
In screw fastening mode, press and hold the [MEMORY] button and the [UP] button
The mode enters motion setting mode.
2
Press the [MEMORY] button and [SELECT] button at the same time
The buzzer sounds, the main LED lights in light blue, the parameter LED displays “--” and the mode enters screw
fastening time measurement mode.
Lights in light blue
-- display
3
Tighten the screw several times
4
Use the [UP] button and [DOWN] button to check the maximum value and minimum value,
respectively
While pressing the button, a value is displayed.
When [SELECT] button is pressed, the previous measurement result is canceled.
The duration of measurement is from when the electric screwdriver starts rotating to when the torque reaches the
set torque.
If rotation stops without reaching the set torque, that measurement is not taken. (In case of reverse rotation,
measurement is not taken)
When measurement is taken correctly, the parameter LED displays the measurement result.
By repeating screw tightening, the maximum and minimum measurement values are updated.
5
Press and hold the [MEMORY] button to save the measurement results
The minimum value is saved in the lower limit of screw fastening time (motion No. 7).
The maximum value is saved in the upper limit of screw fastening time (motion No. 8).
When saving is completed, the buzzer sounds, the main LED flashes in blue and the mode enters the motion
setting mode.
If there is one or fewer measurement results, setting NG occurs (main LED flashes in red).
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