Overview: The document describes the Pacemaster controller, a non-regenerative adjustable speed drive system designed for industrial machinery. It includes a D.C. motor and operator's control, offering reliability and protection for driven equipment.

Specifications: The controller supports a speed range of 30:1 with armature voltage feedback and 100:1 with tachometer feedback. It features adjustable acceleration/deceleration, current limit, maximum and minimum speed, and IR drop compensation. The system is designed for altitudes up to 3300 feet and temperatures ranging from 0 to 55°C for the chassis and 0 to 40°C for the cabinet.

Standard Features: Key features include a semi-converter design, digital control of thyristor gating, proportional speed regulator, inner loop current regulator, and various protections such as di/dt and dv/dt protection, heat sink overtemperature protection, and high-speed current limiting thyristor fuses. The system also includes LEDs for status indication and provisions for external torque control.

Options: Available options include instrument follower, tach or voltage follower, field loss protection, overspeed protection, dynamic braking, and various enclosure types (NEMA 1 and NEMA 12).

Dimensions: The document provides dimensions for both reversing and non-reversing models, with specific sizes for NEMA 1 enclosures and optional test meters.

Other Products: The document mentions other products such as regenerative and non-regenerative DC drives, microprocessor-based drives, and multimotor industrial drive systems.

Contact Information: Cleveland Motion Controls, located at 7550 Hub Parkway, Cleveland, OH, provides these systems and can be contacted for further information.