Catalog excerpts
Programmable Series Motor Controllers MODEL 1204M/1205M F eat u res Smooth, Silent Control • Pulse Width Modulation control with programmable speed, acceleration rate and current limit. 1205M • 15kHz PWM frequency for near-silent operation. Programmable and Flexible • Easily programmed via Curtis hand-held tools or Curtis PC programming software. • External Status LED output for easy system troubleshooting via flash codes. • Fully programmable analog throttle input for precise speed control with a variety of signal sources. • Programmable undervoltage cutback caters for different battery types. • Boost function to help clear obstacles, climb ramps, etc. • Programmable, variable or fixed plug braking modes. 1204M • Plug braking diode internal to controller. • Models available without A2 busbar for applications such as pump control that do not require plug braking. Robust Safety and Reliability • Redundant hardware watchdog timers. DESCRIPTION Curtis Models 1204M and 1205M provide fully programmable control of DC series motors performing on-vehicle traction or pump duties. These microprocessor based MOSFET controllers • Motor and MOSFET short-circuit protection functions. • Failsafe throttle fault detection requires keyswitch to be cycled before drive can resume, protecting against intermittent faults. • Programmable High Pedal Disable function prevents controller operation if throttle is applied before key is turned on. motor controller family. • Contactor fault detection: controller shuts down safely if the main contactor opens. APPLICATION • Contactor protection functions minimize high current arcing to prevent contact pitting and thus prevent contactor weld failures. add flexibility and versatility to the time-proven Curtis PMC series Primarily designed for battery-powered vehicle applications using either electric or hydrostatic traction. These include industrial trucks, personnel carriers, mobile elevating work platforms and golf and utility vehicles. • Rugged anodized aluminum extrusion housing meets IP65 environmental sealing standard for use in harsh environments. • Thermal cutback above 80°C and automatic shutdown at 120°C provide protection to motor and controller. • PWM frequency shifts from 15kHz to 1kHz if the controller temperature exceeds 105°C, providing audible warning of thermal shutdown. • Undervoltage cutback and shutdown functions protect against low battery voltage, including low voltage caused by external loads. www.curtisinstruments.com
Open the catalog to page 1MODEL 1204M/1205M TYPICAL WIRING - TRACTION CONTROL WIRING FUSE POWER WIRING FUSE KEYSWITCH PED AL MICROSWITCH INTERLOCKS POLARITY PROTECTION DIODE MAIN F PRECHARGE RESISTOR (250 Ω , 5 W) R + F – S1 F 5k Ω THROTTLE R MOTO R FIELD R MAIN MOTOR ARMATURE S2 STATUS LED J1 J2 J3 J4 HANDHELD PROGRAMMER TO J4 M– B– B+ A2 REVERSE A1 FORWARD A2
Open the catalog to page 3MODEL 1204M/1205M TYPICAL WIRING - PUMP CONTROL WIRING FUSE KEYSWITCH ENABLE INTERLOCKS POLARITY PROTECTION DIODE POWER WIRING FUSE MAIN MAIN PRECHARGE RESISTOR (250 Ω , 5 W) + A1 MOTOR ARMATURE 5k Ω THROTTLE A2 – S1 MOTO R FIELD STATUS LED J1 J2 J3 S2 J4 B– B+ M– HANDHELD PROGRAMMER TO J4 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 ©2010 Curtis Instruments, Inc. 50180 REV B 3/10
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