The Pacific Scientific SC720 Command Controllers are brushless servo controllers designed for cabinet-mounted industrial motion systems and intended for use with Pacific Scientific R-series rare-earth and F-series ferrite brushless servo motors.
The family spans SC722 through SC726 models, with SC722 and SC723 sized for 10-inch-deep cabinets and SC724, SC725, and SC726 requiring 12-inch-deep cabinets, while SERCOS-equipped versions need additional depth. In standard operation, the series accepts a variable ±5 to ±12 VDC analog command through a 50 kΩ input for velocity control, allowing it to interface with sources such as a PLC, a computer DAC, or a motion controller. When fitted with the Digital Personality Module, the platform can be configured for torque, analog velocity, or position control, and it also supports electronic gearing and step-and-direction operation. Overall, the SC720 line is best described as a programmable legacy Pacific Scientific servo-control platform that combines analog command capability with configurable control modes and encoder-related functions for integrated machine motion control.
