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 1244 SepEx® FEATURES • Full bridge control of the motor field allows reversing without the use of direction contactors. • Fully compatible with the Model 1307 Programmer for programming, diagnosticand test information. • Armature current controlled at all times, reducing arcing and brush wear. • Regenerative braking increases usable battery energy and reduces motor heating. • Neutral braking provides automatic braking in neutral - simulates the feel of compression braking. Braking level adjustable. • MultiMode™ allows four user selectable vehicle operating profiles. • Programmable to match individual separately excited motor characteristics. • Meets or exceeds EEC fault detect requirements with circuitry and software to detect faults in the throttle circuit, MOSFET drive circuits, and driver outputs. DESCRIPTION • Vehicle speed is controlled and limited at top end via motor Curtis PMC Model 1244 SepEx® programmable controllers provide smooth and seamless regenerative control of separately excited motors. An advanced MOSFET power section provides very high efficiency, silent operation and reduced motor and battery losses. field control. • Passive regen provides vehicle speed control at any throttle position when going down ramps. • Linear temperature cutback on armature and field drive current limits. No sudden loss of power under any thermal conditions. APPLICATION • Undervoltage cutback reduces motor current to maintain the Curtis PMC SepEx® controllers are designed for small material battery voltage above the under-voltage point. handling and other light industrial vehicles using separately excited • PWM drivers for contactors are programmable for pullin and motors. These include low lifts, stackers, personnel carriers and other holding currents to reduce power dissipation and allow the industrial vehicles. use of common contactors. • HPD and SRO interlock options ensure proper startup sequence. • Emergency reverse (belly button) input causes immediate reversal upon activation. www.curtisinstruments.com

MODEL 1244 SepEx® FEATURES continued Meets or complies with relevant US and International Regulations • Integral fault detect LED flashes error code information. • Two fault outputs provide diagnostic information to dash • Manufactured under ISO 9001 certified Quality Management System. • UL Recognized Component Status. mounted displays. • Fully protected inputs and outputs. • Hour meter enable output active only when vehicle is moving. • Active power on self test and continuous diagnostics during operation. • Internal and external circuits ensure proper software operation. MODEL CHART CURTIS...

MODEL 1244 SepEx® TYPICAL WIRING DIAGRAM MAIN CONTACTOR COIL FORWARD SWITCH REVERSE SWITCH 5KΩ THROTTLE HANDHELD OR PC PROGRAMMER MODE SWITCH 2 MODE SWITCH 1 F1 B- M- B+ BRAKE/SEAT SWITCH F2 KEYSWITCH MAIN CONTACTOR A2 A F1 POWER FUSE A1 POLARITY PROTECTION DIODE CONTROL FUSE F2 + OPTIONS • Electro-magnetic brake control. • Internal precharge circuit eliminates external resistor and excessive arcing on main. (Standard on 36-48 and 36-80 volt models) • Auxiliary contactor driver for power steering pump. • Reverse signal output for backup alarm, lights, etc. • Closed-loop speed control utilizing...