Kolver FAB Series User Manual

Vers. 111219 Page 7
13) Auto rev. – Auto reverse: This option will automatically start a reverse after a torque reached signal.
You can set time from 0.1 to 20.0 sec.
To disable the function press until you get to OFF.
ATTENTION: During the reverse, it is necessary to keep the lever or the start signal pressed as long as it
doesn’t stop. “Correct screw” will be displayed on the status bar and a green led will light up. You will
hear one beep sound, too. In case the lever is released before the end of the reverse, “unfinished screw”
will be displayed and a red led will light up. You will hear two beep sounds, too.
14) Rev spd - Reverse speed: You can select any reverse speed value of the screwdriver between the
maximum and the minimum specific speed of every single screwdriver (see table with technical data).
15) Rev torque – Reverse torque: You can select the desired reverse torque as a percentage of the
torque range of the selected screwdriver (see point 2). If the torque is set on MAX, the reverse torque is
about 20% higher than the possible maximum torque, so that it is always possible to unscrew a tightened
screw (we suggest leaving this function on in normal use). If the setting is from MIN to 99% the reverse
torque with the same percentage will be equal to the settings of the screwing phase.
ATTENTION: If you’re using open-end wrenches, the reverse torque has to be set to MIN value in
order to bring the wrench back to the correct position.
16) 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 press until you get to OFF.
This function overlaps other time settings (Fast Speed, ramp time, minimum time, maximum time) from the
motor start on.
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. “Error pvt time” will be
displayed and the red led will light up. You will hear two beep sounds, too.
17) 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.
18) Press OK: when ON, press OK at the end of each screwing.
When OFF, the control unit resets automatically after a screwing.
19) Press ESC: when ON, press ESC to reset the control unit.
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Kolver FAB Series Specifications

General

Brand	Kolver
Model	FAB Series
Category	Control Unit
Language	English