Curtis offers traction/hydraulic system controller
A
Curtis Instruments product story
Edited by the Engineeringtalk editorial team
May 4, 2009
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.
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