Bimba SPCS - Manual (Page 9)

2014.01.23 rev4 9
3. Advance Settings
Determine the electrical offset % between the Cylinder command signal and the Cylinder feedback signal
• Minimum Position Slide: Move the slide to zero
• Maximum Position Slide: Move the slide to 100%
• Cylinder Command Slide: Move the slide to zero (the cylinder should fully retract) – note the per-
centage at the top of the Cylinder Feedback Slide. The percentage shown is the offset that should
be adjusted for in setting your command signal to retract the cylinder to a specific position.
• Repeat this process with the cylinder fully extended (Move the Cylinder Command to 100%) Note
the % difference between the Cylinder Command and the Cylinder Feedback percentages. Use this
to compensate for extending the cylinder to a specific position along the rod length.
(You may need to add the % offset to the required position when using rod positions other than fully extend
and retract)
Period
– This sets the time it takes to complete a full cycle.
Minimum Position – Retract; Zero equals full retract; Higher % sets rod retract before full mechanical
retract – Ex. 5” rod, set at 35% - rod retract stopping point equals 1.75”. Prevents piston bottoming out at
full retract.
Maximum Position – Extend; 100% is fully extended. Lower % set maximum extend at less than
mechanical full extend – Ex. 5” rod, set at 85% - full rod extension 4.25”. Prevents piston striking the rod
guide at full extend.
Ramp Up – Increases or decreases extend speed. Higher % reduces speed; Lower % increases speed.
Ramp Down – Increases or decreases retract speed. Higher % reduces speed; Lower % increases speed.
When PC Square Wave is selected and the system is operating you can change the perimeters to further
adjust the valve and cylinder responsiveness.