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 1268 SepEx® FEATURES • Power MOSFET technology provides smooth, silent, efficient, and cost-effective operation. • Adjustable parameters enable custom optimization of speed, torque, and braking control. • Half bridge armature and full bridge field provides regenerative braking down to zero speed. • Sealed package rated at IP64 and IP67. • Overspeed braking (regenerative) limits speed while driving downhill. • WalkAway™ braking feature limits any stopped or key-off rolling to very low speed. • System uses Hall effect speed sensor on motor or drive train to control vehicle speed. • Tow switch enables free rolling for towing of vehicle. • Anti-rollback function provides improved control when throttle is released on hills. • Anti-stall function helps prevent motor commutator damage. • Controller drives warning buzzer -- steady in reverse; intermittent during WalkAway™ braking. • Optional electromagnetic brake output. • Optional brake light output. • MultiMode™ inputs provide for multiple speed and power modes of operation. DESCRIPTION and microprocessor based, with an advanced MOSFET power • Timed shutdown of main contactor after pedal is released and vehicle has stopped. section for smooth and seamless control of separately excited • LED status indicator with external output. Curtis PMC Model 1268 SepEx® controllers are programmable • Fully compatible with 1311, 1314 and 1307 Programmers for parametric adjustment, tuning, test, and diagnostics. APPLICATION Curtis PMC 1268 SepEx® controllers are designed for use in heavy-duty golf/utility vehicles. • Extensive fault detection and diagnostic reporting using a Curtis Programmer including (partial list): – Main contactor weld check and driver check – Throttle and wiring faults – Open or shorted motor field winding – Open motor armature winding – Over-temperature – Missing or failed speed sensor – Armature drive failure.

MODEL 1268 SepEx® FEATURES continued • Brake lamp relay to drive external lights for visual indicator of braking conditions. • Extensive system monitor capabilities using a Curtis Programmer, including (partial list): – Battery voltage – Throttle input – Direction and throttle switch operation – Motor field and armature currents – Controller heatsink temperature • Electromagnetic brake at 24V or 48V (programmable) to lock vehicle at rest. Meets or complies with relevant US and International Regulations • WalkAway™ braking feature to slow vehicle during key-off. • 5K 3-wire, 0-5V, or ITS throttle....

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