Kolver 033001, Operator'S Manual

Page: 51 / 89

Vers. 111422 51
(4) MIN TIME
The MIN TIME function makes the screwing result NOK (error) if the target torque or
angle is reached before the set minimum time.
ON : “Below minimum time” error will be displayed if target torque or angle is reached
before the set minimum time, counting from the moment the lever is pressed or a
remote start signal is received.
OFF : this functionality is disabled.
(5) MAX TIME
The MAX TIME function makes the screwing result NOK (error) if the target torque or
angle is not reached before the set maximum time.
ON : “Over maximum time” error will be displayed if target torque or angle is not
reached before the set maximum time, counting from the moment the lever is pressed or
a remote start signal is received.
OFF : this functionality is disabled.
(6) PREVAILING TORQUE
The PREVALING TORQUE function makes the screwdriver work at maximum torque
for a set time period or angle selected.
WARNING: This function is useful for applications where the prevailing torque is
higher than the final target torque (for example self-tapping screws or locknuts). Please
use this function with utmost attention because an incorrect use can damage both the
assembly and the screwdriver!
The time is counted from the moment the lever is pressed or a remote start signal is
received.
The angle is counted in accordance with the STARTING AT setting.
This function can be overlapped with the RAMP function.
The SPEED setting is respected during the prevailing torque phase.
If the torque measured during the prevailing torque time exceeds the maximum torque
achievable by the screwdriver, in other words, if the screwdriver stops turning during
the prevailing torque phase, “Error pvt time” will be displayed.
If OFF, this functionality is disabled.
(7) RUNNING TORQUE
The RUNNING TORQUE function makes the screwdriver add (compensate) the peak
or average torque measured during the set window to the final target torque, in real
time. This function is required in select aerospace and helicoil application, where a fixed
“clamping torque” is to be applied on top of a variable “running torque” (“friction
torque”) encountered during the rundown.
This function can only be activated in Torque Target mode (not in Angle Target mode).
Refer to the RUNNING TORQUE section for more information.
Off : the function is not active.
Angle : the running torque is measured within the angle window selected, counted in
accordance with the STARTING AT setting.
Time : the running torque is measured within the time window selected, starting from
the moment the screwdriver lever (or remote lever command) is pressed.