Vers. 120723 7
16) Rev torque – Unscrewing torque: You can select the desired torque as a percentage of the torque range
of the selected screwdriver (see point 2). If the torque is set on MAX, the unscrewing torque is about 20%
higher than the possible maximum torque, so that it is always possible to unscrew the tightened screw (we
suggest leaving this function on in normal use). If the setting is from MIN to 99% the unscrewing torque with
the same percentage will be equal to the settings of the screwing phase.
ATTENTION: If you’re using open-end wrenches, the unscrewing torque has to be set to MIN value in
order to bring the wrench back to the correct position.
17) PV torque: Period of time in which the screwdriver works at maximum torque before switching to the
torque that has been set by the user. You can set time from 0.1 to 10.0 sec. To disable the function select OFF
by pressing as many times as needed.
This function overlaps other time settings (fast speed, ramp time, minimum time, maximum time) from the
motor start on.
Once the timed PV torque phase has been set, it will not be possible to set an angled Prevaling torque phase.
ATTENTION: This function is useful for applications where the prevailing torque is higher than the final
torque (for example trilobal screws or locknuts).
Please use this function with utmost attention because an incorrect use can damage both the assembly
and the screwdriver.
Torques reached during the max torque time won’t activate the torque signal. “PV Error” will be displayed
and the red led will light up. You will hear two beep sounds, too.
18) PVTangle – Prevaling Angle Torque: it indicates the angle that the screwdriver must reach at the
maximum torque and then continue at the pre-set torque. The angle can only be set if the "TORQUE/LEVER"
mode (23) is active, therefore when the lever is pressed, the screwdriver will turn at maximum torque.
This function overlaps with the other time/angle settings (fast phase, ramp, minimum time, maximum time)
starting from the motor start.
Once the Prevaling Angle torque has been set, it will not be possible to set a PV Torque.
To disable the function, enter an angle equal to 0°. In this case the screwdriver will apply the torque set by the
user.
ATTENTION: This function is useful for applications where the prevailing torque is higher than the final
torque (for example trilobal screws or locknuts).
Please use this function with utmost attention because an incorrect use can damage both the assembly
and the screwdriver.
Torques reached during the max torque time won’t activate the torque signal. “PV Error” will be displayed
and the red led will light up. You will hear two beep sounds, too.
19) Rotation: You can choose between right tightening (standard screws) or left tightening (left threaded
screws). All the other functions will adapt to the selected direction of rotation.
20) Calibration: ON allows to see the torque value on the main screen. OFF doesn’t show the torque value.
(To modify the calibration parameters see paragraph Torque calibration).
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