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CURTIS DC SepEx Motor Speed Controller Assembly

Model: 1268-5403, 36-48V / 400A, with foot pedal throttle, installation kit & mating connectors

Overview:

CURTIS 1268 controllers are separately excited motor speed controllers designed for use in a variety of transport vehicles. These programmable controllers are simple to install, efficient, and cost effective. Typical applications include heavy-duty golf carts, personnel transports, burden carriers, and other utility vehicles.

The 1268 controller offers smooth, silent, cost effective control of motor speed and torque. The speed sensor input allows superior closed-loop control for regulating vehicle speed. Unique braking parameters allow simple, intuitive deceleration tuning. A full-bridge field winding control stage is combined with a half-bridge armature power stage to provide solid state motor reversing and regenerative braking power without additional relays or contactors.

This CURTIS controller assemblage model 1268-5403 has the safety function "WalkAway™ Braking" (conroller parameter "AUX DRVR MODE" set as "1", an external "WalkAway™" DC contactor is available), please take reference with the Fig. 3b diagram of the page 9 of CURTIS 1268 Controller Manual.

If you vehicle features an electromagnetic brake, please contact us before making the purchase. We will change the configuration of controller assemblage for fitting to your vehicle's setting.

Specifications:

• Proposed SepEx motor power rate:
  • 36V system: ≤ 5 kW
  • 48V system: ≤ 6.3 kW
• simple motor connecting labels on assemblage
• easy installation with components mounted on a heat-sink aluminium alloy installation plate
• foot pedal accelerator (throttle), pre-wired for assemblage
• simple plug-in connctors

This 1268-5403 controller assemblage is a completed electric vehicle DC Series Motor control system. The assemblage includes:

• controller
• main contactor
• fuses
• wiring
• heat-sink aluminium alloy installation plate
• foot pedal accelerator (0-5V throttle)
• plug-in connectors
• installation (bolts, washers and nuts) kit Included

References:

• 1268-5403 Controller Assemblage Wiring Diagram (PDF format)
• 1268-5403 Controller Assemblage Installation Instruction (PDF format)

For the buyer without CONTROLLER APPLYING EXPERIENCE, please consult your cart/motor dealer and read carefully the CURTIS 1268 Controller Manual before making the purchase.

Vehicle speed setting: for limiting the maximum speed of vehicle, the buyer may need to provide the speed limit (Max. Speed), gear ratio and tire size (tire diameter, the buyer may provide the exact tire model for that we can determine the tire diameter). By calculating the parameter "RPM TO SPEED", and setting the parameters "M1/M2 FWD SPEED" and "REV SPEED", the vehicle forward and reverse speeds could be limited within a safe range.

We may reprogram the controller for adapting itself to your vehicle's specification. You may send us the list of parameters to be modified (Click here to download the parameter list of default setting of controller 1268-5403, PDF format). There is no extra cost for reprogramming the controller.

Features include:

• Regenerative braking, providing longer operation on a single battery charge and reducing motor brush wear and motor heating
• Adjustable brake rates, for smooth pedal-release braking
• Two user-selectable vehicle operating personalities, with vehicle top speed controlled and limited in each mode
• Motor parameters are programmable to match the characteristics of the specific motor being used
• Vehicle speed control is enhanced through feedback from a Hall effect speed sensor
• Anti-rollback function, providing improved control when throttle is released on hills
• Anti-stall function helps prevent motor commutator damage
• High pedal disable (HPD) and static return to off (SRO) interlocks prevent vehicle runaway at startup
• WalkAway™ braking feature limits any stopped or key-off rolling to a very low speed
• Auxiliary driver can be programmed for either an electromagnetic (EM) brake or a WalkAway™ relay
• Coil driver provides adjustable pull-in and holding voltages to WalkAway™ relay or EM brake
• Driver for brake lamp relay can be used to power external lights during braking
• Reverse signal driver provides a low signal any time the vehicle is traveling in reverse
• Driver outputs are short circuit protected and provide built-in coil spike protection
• Warning buzzer sounds steady in reverse, intermittent during WalkAway™ braking
• Complete diagnostics through any of the optional programmers and through the built-in Status LED
• Driver for remote Status LED enables status information to be available at a dashboard
• Sealed package is rated at IP64 and IP67
• Meets or exceeds EEC fault detect requirements.

Wiring Diagram: