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Evaluation of Operation Time
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The operation time from start of rotation to stop of the screwdriver is evaluated against the learning
values.
◦
The blinking and lighting of the OPERATION NG indicator will turn off when the START signal is entered
again.
Control Unit
Main reasons why OPERATION NG indicator is lit
◦
No torque up signal is sent because of reasons like screwdriver idling.
Main reasons why OPERATION NG indicator blinks
◦
A torque up signal was not sent during the learning measurement period.
If it is not necessary to strictly measure the operation time, by using the application, change the setting
value so that the learning interval will become larger.
◦
Continuous ON/OFF operations at the end of tightening (pushing the button twice or three times in a
row)
CAUTION
There is a nonintervention time of 100mS for torque measurement and evaluation after the START is input.
Nonintervention time of 100mS
If the screwdriver output is given to a screw even after tightening, the value will be larger than the
measuring value and not the expected tightening value.
To perform proper screw tightening, please do not perform continuous operations.
