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1244 Curtis Controllers

The MultiMode motor speed controller from Curtis Controller Model 1244 is used for separately excited (SepEx) motors. This controller is cost-efficient, only requires simple installation, and operates silently when controlling the speed, brake, and torque of the motor. The control stage of four-quadrant, full bridge power stage of two quadrant, half-bridge armature allows regenerative braking and solid state motor reversing power without requiring relays and contactors. This controller can also be used with CAN Bus communication systems. The controller can be applied to vehicles used for material handling with order pickers and counterbalance trucks.


The Curtis 1244 operates at a high frequency of 16 kHz, has nominal voltage options of 24-36 volts, 36-48 volts, and 36-80 volts and a current limit range of 400-700 amperes. It weighs 3.9 kg and is 229 mm in length, 178 mm in width, and 81 mm in depth. The Curtis Model 1244 provides a better driving experience due to key features and optional features, which can be added according to the preferences and application demands.


The Curtis 1244 controllers can now be purchased here in Cloud Electric, your one-stop shop for all your electric component needs. Cloud Electric is a leading distributor of electronic components in North America. We take pride in our informative product descriptions, pricing, and shipping speed.

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1244-5461 : Curtis Controller G - 36/48V 400A (5K-0) SX CTL  #1244-5461 1244-5561 : Curtis Controller 1244-5561 G - 36/48V 500A (5K-0) SX CTL 1244-5651 : Curtis Controller G - 36/48V 600A (5K-0) SX CTL  #1244-5651
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1244-6561 : Curtis Controller G - 48/84V 500A (5K-0) SX CTL  #1244-6561 1244-6661 : Curtis Controller G - 36/84V 600A (5K-0) SX CTL  #1244-6661
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1

SPECIFICATIONS

VOLTAGE


  • Nominal Voltage Range

24-36 V, 36-48 V, 36-80 V

MINIMUM ELECTRICAL ISOLATION

Due to Heatsink: 500 VAC

KSI INPUT


  • Input Voltage

24-36 V systems: 16.8 V

  • Input Current when no contactors are engaged

W/o Programmer: 160 mA

W/ Programmer: 200 mA

LOGIC INPUT


  • Voltage

High: Greater than 7.5 V

Low: Less than 1 V

  • Current

10 mA

CURRENT LIMIT RANGE

400-700 A

OPERATING FREQUENCY

16 kHz

THROTTLE TYPES

3-wire potentiometer, 2-wire throttle, single-ended, center-off (wig-wag), voltage throttle

TEMPERATURE


  • Ambient (Operational)

-40C to 50C

  • Undertemperature Cutback (Heatsink)

-25C

  • Overtemperature Cutback (Heatsink)

85C



PHYSICAL SPECIFICATION

WEIGHT

3.9 kg

DIMENSION

  • Length

229 mm

  • Width

178 mm

  • Depth

81 mm

PACKAGING

IP64 or IP67


FEATURES

Feature

Purpose

Brake Control and Variable Drive Speed

Allows accurate vehicle control for an improved driving experience

Half-Bridge Armature and Full Bridge Field Power MOSFET

Highly efficient and noiseless operation with a wide range of control

Regenerative Braking

Increases battery life allowing the vehicle to operate longer with just a single charge while preventing issues such as motor heating and brush wear

Curtis 1307

Programmable control allows testing and diagnostics

Two Fault Outputs

On a display mounted remotely, the diagnostics is displayed

Continuous Current Control in the Armature

This reduces brush wear and arcing

Automatic Braking

Once the throttle is positioned in other directions, the brake is automatically initiated creating a smooth change in direction which improves the safety of the vehicle

Load Compensation, Deceleration Rate, and Restraint

Prevents runaway conditions

MultiMode input

User-select feature offering four operating personalities and the top speed of the vehicle is controlled

Programmable

Helps in matching characteristics with the SepEx it will be used with

Cutback Function (Undervoltage and Linear Temperature)

Provides protection from power loss from any temperature condition

Static Return to Off and High Pedal Disable

If the vehicle is started in a faulty condition, this feature disables it from operating.

Adjustable Creep Speed

In each mode, the creep speed can be tweaked from 0 to 25 percent

Power-On Self-Test

There is continuous monitoring and diagnostics when operating

Watchdog Circuits (Internal/External)

The software operates properly

Protected Components

All components are properly packaged to prevent internal damages

Compatible with CAN Bus

The CAN Bus is configurable



OPTIONAL FEATURES

Feature

Purpose

Driver for Electromagnetic Brake

Allows control of EM-related functions

Driver for Reverse Signal

Produces signal when the vehicle is braking (forward/reverse)

Driver for Auxiliary Function

Allows powering auxiliary contactor with low signal



ACCESSORIES COMPATIBLE WITH CURTIS 1244

  1. Curtis 1307 - a programmer that assists in parameter control, testing, and conducting system diagnostics.

    DIMENSIONS

    WIRING DIAGRAM