MODEL 1243 SepEx®
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S E PA R AT E L Y E X C I T E D E L E C T R O N I C MOTOR SPEED CONTROLLER MODEL 1243 SepEx® F eat u res Unparalleled Driving and Braking Feel • Regenerative braking allows shorter stopping distances, increases usable battery energy, and reduces motor heating. The half bridge armature drive topology allows regenerative braking down to zero vehicle speed. • ”Ramp Restraint” feature provides automatic electronic braking that restricts vehicle movement while in neutral. • Vehicle speed is controlled by the throttle, at all times including down hills. • “Load Compensation” provides improved loaded versus unloaded speed regulation by compensating for losses in the armature. Fully Programmable • Fully compatible with the Curtis Models 1311 and 1314 programmers for programming, test, and diagnostic information. • MultiMode™ feature allows four user selectable vehicle operating profiles. Each profile has separate drive current limits, brake current limits, acceleration rates, brake rates and maximum speeds. Easy to Install and Maintain • No direction contactors are required. The full bridge field driver topology allows motor reversing without the use of direction contactors. DESCRIPTION Curtis PMC Model 1243 SepEx® programmable controllers provide smooth and seamless regenerative control of separately excited motors. An advanced MOSFET power section, combined with a sophisticated microprocessor provides very high efficiency, silent operation and reduced motor and battery losses. APPLICATION Curtis PMC Model 1243 SepEx ® controllers are designed for small material handling and other light industrial vehicles using separately excited motors. These include low lifts, stackers, personnel carriers and other industrial vehicles. • Simple wiring and installation by the elimination of the direction contactors and the use of positive battery connections for all inputs and driver outputs. • Can be configured to match most separately excited motors and vehicle applications. • An auxiliary driver output supports an electro-magnetic brake, pump contactor, or hour meter. A programmable delay allows for customization of this driver output. • An integral fault LED flashes helpful error code information. Two fault outputs provide diagnostic information for dash mounted displays. Diagnostic faults are logged and the history is viewable through a Curtis Model 1311 and 1314 programmer. Powerful Safety Features • Meets or exceeds EEC fault detection requirements. Circuitry and software to detect faults in the throttle circuit and MOSFET drive circuits help prevent unsafe operation. www.curtisinstruments.com

MODEL 1243 SepEx® FEATURES continued • All inputs and outputs are fully protected. • Emergency reverse feature causes quick vehicle reversal upon activation. The emergency reverse input wire can also be checked for continuity. Meets or complies with relevant US and International Regulations • Programmable HPD and SRO interlock options ensure proper startup sequence. • Manufactured under ISO 9001 certified Quality Management System. • UL Recognized Component Status. • Complies with the CE standards for electromagnetic compatibility in emissions and susceptibility. • Active power on self test...

MODEL 1243 SepEx® dimensions m m 198 25 98 156 7.14 Ø 3 PLACES 28 79 57.1 11 16 173 S1 70 Max 51 B- S2 M- B+ 6 Max 114 198 OPTIONS • Curtis Model 840 “Spyglass” LCD Multifunction Display contains 8 large, readable characters to provide display of battery discharge (BDI), hour meter and error messages. Backlit display is also available. W A R R A N T Y Two year limited warranty from time of delivery. is a trademark of Curtis Instruments, Inc. Specifications subject to change without notice ©2008 Curtis Instruments, Inc. 50045 REV F 10/08