Page 36 of 54
18. Foot pedal (QuickSpan)
a) The foot pedal is used to clamp the wheel to the main shaft and is NOT designed to be used as
a brake to hold the main shaft.
b) The pedal is part of a metal plate, which is constructed with a small bolt attached to relieve the
pressure of someone applying full force to the pedal and damaging it after a while. If this screw is
set in the wrong position, it can lead to the breakdown of the mechanical switches or that the
switch point cannot be reached due to the brakes being applied too early. Loosen the securing nut
and turn the adjuster in the desired position. Tighten the securing screw afterwards.
c) The foot pedal switch works as an opener, meaning the following:
- If the foot pedal is not operated at all the switch is closed
- If the foot pedal is pushed and hold in the push position the switch opens
The measurement of the resistance between the contacts 3 and 4 on the cable from the foot
pedal switch brings the following results
- Foot pedal not operated Connection between contacts 3 and 4 (resistance = 0)
- Foot pedal operated and hold No connection between contacts 3 and 4 (high resistance)
Please note that the software does check the foot pedal switch during power on and based on the
status of the switch does activate the QuickSpan function or not. This means that, if the foot pedal
is pushed during “power on” of the machine it can happen that the software does recognize an
open switch and puts the QuickSpan out of operation.
It is important to leave the machine untouched during the power on process, especially on a
machine with Touch PC as the power on takes some time
If there is not any difference in behavior of the switch when operating the pedal or leave it this can
have 2 reasons:
- The foot pedal switch is defect
- The mechanical connection between the foot pedal itself and the switch does not allow to
operate the switch
To Next Page
Loading...
Need help?
General
