Rapid-Air ECONOMY CUT-TO-LENGTH WITH BATCH Count - Manual (Page 3)

while still being able to cut through the material. Transversely, if a job is being run and the cutter is
getting dull, the potentiometer can be adjusted to slow the cutter down to get the job finished before
changing or sharpening the cutter blades.
6. FEED RATE POTENTIOMETER:
The feed rate potentiometer is a single-turn potentiometer. By turning the knob clockwise the cycle time
will be shortened causing more strokes per minute. By turning the knob counter-clockwise the cycle
time will be lengthened resulting in fewer cycles per minute. If the rate is too high (trying to cycle the
feed at 200 SPM when the feed is only capable of 160 SPM) severe misfeeding will result. Cycling the
feed too slow will simply reduce the parts per minute produced. Once the best setting is determined,
note the setting for future reference.
There is a formula to calculate the maximum parts per minute (PPM) for a given feed. The formula is
PPM=X (2N-1).
X=The maximum recommended cycles per minute of the feed,
(listed in the Rapid-Air catalog) at the required progression.
N=The required number of feed cycles per part.
Example:
If it is desired to produce a 24” long part, having the feed adjusted to an 8” progression, the counter
would be set for 3 progressions and the maximum recommended number of cycles per minute is 100,
the maximum number of parts per minute would be 100/(2x3-1) or 20 parts per minute (PPM).
7. SINGLE/BATCH CYCLE SWITCH:
When the cycle switch is set on “SINGLE”, the controller will allow (1) complete cycle and then stop.
This is used for set-up purposes. When the cycle switch is set on “BATCH”, the controller will cycle until
the batch complete has signaled the controller to stop or the “STOP-RUN-START” selector switch is
turned to stop.
8. PRESET BATCH COUNTER
The batch counter must be preset with at least (1) digit to have the controller run in the batch mode. To
accomplish this task the following steps have to be performed.
A. Locate and depress the “P&E” pushbuttons at the same time on the face of the batch counter.
B. At this time a digit should be flashing. If this is the digit that should be changed at this time, depress
the”E” pushbutton until the correct digit appears.
C. When item #2 is finished or a different digit is wanted, depress the “P” pushbutton until the digit to be
changed is flashing. Redo item #2.
D. When the correct batch count has been entered then depress the “P” pushbutton until there are no
digits flashing.
E. Depress the “RESET TO PRESET” pushbutton located above the batch counter. The “R”
pushbutton on the face of the batch counter is defeated and will not function as a reset.
9. RESET TO PRESET PUSHBUTTON:
Depressing this pushbutton will reset the batch counter to the preset count as entered previously.