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The Curtis Model 1298 integrated AC traction and hydraulic system controller combines AC traction motor control with solid-state DC hydraulic pump and proportional valve control.

The Model 1298 is designed primarily for Class III material-handling vehicles that require variable-speed or soft-start and soft-stop control of the lift-and-lower functions.

Fully-featured generic software is included for Walkie and Walkie-Stacker applications.

Other applications can be easily supported with alternative VCL programming.

Features include: high-frequency, silent operation; powerful operating system for parallel processing of vehicle control tasks, motor control tasks, and user-configurable programmable logic; Curtis field-orientated vector control algorithm for peak torque and optimal efficiency across the entire operating range; full regenerative braking and precise zero-speed control; in-vehicle motor characterisation for easy tuning of the controller to any AC motor; half-bridge pump output for regulation of pump motor speed and current demand; built-in battery state-of-charge algorithms and hour meters; field-programmable; special features and I/O for electromagnetic brake, DC pump motor, and hydraulic valve control, for economical control of the entire vehicle system; software-selectable options for variable-speed lift-and-lower or single-speed lift-and-lower; Curtis vehicle control language (VCL) for easier system design – alternatively, the user can quickly and easily write their own functions and algorithms; CANbus connection for communication with other CANbus-enabled system components such as the Curtis TH-1 tiller head – the protocol meets CANopen standards, or is customisable through VCL; easy programming through the 1311 handheld programmer or 1314 PC programming station; insulated metal substrate (IMS) power base provides effective heat transfer for increased performance and reliability; fail-safe power component design; redundant hardware and software watchdog timers; reverse polarity protection on battery connections; short circuit protection on all output drivers.

Curtis Instruments

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