Rapid-Air PALLET MASTER (PMD): PMD35 & PMD50. 115VAC, 1PH, 60HZ - Manual (Page 30)

Rapid Air Corporation
B. VOLTAGE FOLLOWING. All models can be controlled with an isolated
analog reference voltage (0-6VDC) in lieu of the main speed potentiometer. The
voltage is connected to P2 (+) and F-. The control output voltage will linearly
follow the input voltage. The source impedance of the input should be 10K ohms
or less. The Min trimpot can be used to provide an offset speed. If an offset is
not required adjust the Min to 0+ or 0– speed as desired. The Max trimpot is
rendered inoperative in the voltage following mode. Use auxiliary trimpot to
limit the control range. If the input signal is not isolated, or is a current signal (4-
20ma), the RASI240D) Signal Isolator must be used. It will allow direct
connection to process controllers and microprocessors.
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