DIGITAL INPUT: Model 2767D
for applications up to 1 horsepower
These controls are easily interfaced to either microprocessors or 8-bit parallel TTL logic level sources. Motor speed and direction are determined by the value of a 8-bit parallel input: one bit for direction and 7 bits for motor speed. Unused bits in lower resolution applications may be tied off. Logic input signals are isolated from the motor and power line with a minimum isolation voltage of 1500 VDC, reducing the possibility of grounding, noise or safety problems. In addition, a failsafe circuit de-energizes the motor if the input control power is not present. Diagnostic LEDs for user interface and setup.