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A New Addition to the Family! - next E-Series speed controller released

November 21, 2013

Curtis is delighted to announce that the new Model 1234E AC controller, the second model of the ‘E’ series, is now released.   The ‘E’ series utilize a powerful dual-microprocessor logic core that meets all relevant requirements of the EN ISO 13849-1:200 functional safety standard, and the updated EN 1175-1:1998+A1:2010 industrial truck safety standard.

Improvements over the earlier Model 1234 include:

■     Powerful dual-micro logic core allows full compliance with EN ISO 13849-1, eliminating the need for any additional safety/supervisory control modules.

■     Faster 64MHz micro improves motor control, and more than doubles the VCL code execution speed.

■     Additional FLASH memory gives twice the available VCL code space.

■     Increased CAN Master capabilities with 6 additional VCL CAN ‘mailboxes.’

The Curtis model 1234E delivers best-in-class control of AC induction motors and offers the highest levels of functional safety. It is designed for use as the traction controller on class 3 materials handling ‘walkie’ vehicles and other small battery-powered industrial trucks. It is equally suitable as the pump controller for auxiliary hydraulic functions on larger industrial vehicles. Like all Curtis AC controllers, this model features:

Curtis VCL™—Vehicle Control Language is an easy to use programming language that allows vehicle developers to write powerful logic functions and create a ‘virtual system controller’.

Indirect Field Orientation (IFO) vector control algorithm generates the maximum possible torque and efficiency across the entire speed range for superb drive ‘feel’, improved speed regulation and superior gradient climbing capability.

Curtis Auto-Tune function enables quick and easy characterization of the motor without having to remove it from the vehicle. Curtis AC controllers are fully compatible with any brand of AC induction motor.

Dual-Drive functionality is standard, allowing correct control of applications featuring twin traction motors. This function ensures smooth and safe operation, minimal tire wear and correct load sharing between the traction motors at all times. 

Configurable CANbus connection allows communication with other CANbus enabled devices.  The Model 1234E is CANopen compatible and can accommodate both 11-bit and 29-bit CAN protocols of various profiles.

Integrated System Controller—More than just a motor controller, it is also powerful system controller. The 1234E features a comprehensive allocation of multi-function I/O pins for use as analog inputs, digital inputs, contactor coil drivers and proportional valve drivers. This controller is also capable of functioning as a full CAN system master, using VCL to map and configure the remote I/O available on other CANbus devices, send messages to CAN displays and thus control and monitor the entire system.

The new Model 1234 E is available in 24V 350A, 36-48V 275A, 36-48V 350A, and 48-80V 250A  versions.

Call Curtis on 01604 885201 for more information.