Rapid-Air PALLET MASTER (PMD) HIGH SPEED: 35, 50 & 100 SERIES - Manual (Page 8)

The TAUT STOCK feature is built into the Rapid-Air board #69100035 and wired to external
terminals 10-11-12. The terminal #12 is common and from terminal 11 to 12 is a normally
open contact with power on the unit. Terminal 10 to 12 is a normally closed contact with power
on the unit. These contacts are from “relay 2” chip. See diagram. This relay has to be in place
for taut stock to work. There is also a 4 prong post labeled “JUMP” that has to be connected so
that relay 2 can be activated. To correctly apply the jumper, locate the post and then locate the
plastic 2 prong jumper, ensuring that the right 2 vertical posts are covered. Once this is in
place, the taut stock feature can be tuned.
To tune the taut stock, check that there are no connections on the terminals 10-11 & 12, except
those that were factory connected. Attach an OHM meter to terminal 11 & 12 with the meter
set to OHMS
Start the reel and raise the dancer arm so that the reel is running maximum speed. Raise the
dancer arm up to a point that the stock would be taut. Hold the dancer arm at this position and
adjust the pot “R7” of board 69100034 until the contact changes state. Release the dancer arm.
The contact should return to normal state. Raise and lower the dancer arm 2 to 3 times to en-
sure that the contact functions properly. Disconnect the OHM meter and connect the customer
interface. CAUTION! The contact rating of the relay is 10VA@ 0.5 amps max.
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