Rapid-Air STRAIGHTENER: SBX, SCX & SD SERIES - Manual (Page 18)

69100034 TAUT STOCK OUTPUT
The 69100034—Proportional control board has a taut stock output. The output must be wired
to a solid state relay as the max current draw is 20 MA. The solid state relay’s contact can then
be incorporated into the electrical control circuitry.
The output can be wired so that the relay is either on or off with the dancer arm down. When
the dancer arm reaches the set point for taut stock, the relay switches state.
The taut stock height set point is set by raising the dancer arm to a position that the material is
taut and then adjusting pot R7 so the output changes state. Lower and raise the dancer arm a
few times to check that the set point repeats and then the set point repeats and then the task is
finished.
The potentiometer that is located just below the taut stock terminal strip is used for presetting
the max voltage output requirement for a particular drive. A Ramm DC drive needs 6 VDC for
max motor speed so turn the pot fully counter clockwise. A minarik drive board needs 10 VDc
for max motor speed so turn the pot fully clockwise.
The following is a brief wiring diagram for the taut stock.
GRD
10 VDC out with dancer arm down
0 VDC out with dancer arm down
3
2
1