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Curtis Controllers Model 1238E

The SE Series of Curtis controllers are Permanent Magnet AC (PMAC) and AC induction motor controllers. All controllers from the Curtis E and SE Series control the speed and torque of three-phase AC motors that are usually used in vehicles with hydraulic pump motors and electric traction with a nominal battery supply ranging from 24 to 96 volts. The difference among similar controllers is that it has the biggest and heaviest design compared to others.


Compared to other AC controllers from Curtis, the E and SE models like the 1238E use new and state-of-the-art technology to raise the peak current rating. Programmable control, a flexible controller for torque and speed, a CANbus that can be configured, twin traction motor control, and a capable controller for the whole system are the exclusive features of AC controllers from Curtis Instruments. The controller also allows silent operation, lower heat loss, and manageable torque ripple making it a very efficient model in the industry.


The Curtis 1238E 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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EXCLUSIVE FEATURES

Features

Purpose

Vehicle Control Language

The VCL is a programming language that comes in handy as it allows developers to input logic functions that are necessary for the desired application

Field Oriented Control

The FOC produces a regulated speed, increases the capability of driving uphill, and enhanced the driving experience

Motor Compatibility

Enhanced and easy induction motor pairing

Dual-Drive Functionality

Operation is secured and smooth all throughout and helps in reducing the risk of tire wear

CANbus Configuration

Communication with other CANbus devices is allowed

Functions as System Controller

Can be allocated for contactors, pins of input and output, and drivers.


FEATURES

Features

Purpose

Upgradable Software

The software can be upgraded easily and does not require a technician

Improved Peak Current Rating

The feature that enables a more compact design of controller that can operate similarly to the ones in larger designs

Improved Pulse Width Modulation

Allows silent and efficient operation by reducing heating losses and lowering torque ripple

FLASH memory and 64 MHz micro

Allows additional code to be inputted and speeds up the execution speed of VCL


SAFETY FEATURES

  • Cutback Function: A cutback feature for temperatures with warning and voluntary shutdown capabilities to protect the system

  • Dual Microprocessor Architecture: Monitors internal components and circuitry to make sure safety

  • Component Insulation: Enhanced controller reliability and increased heat transfer functionality

  • Fail-Safe Design: The components are guaranteed to be functional

  • Protected from Short-circuit: Avoids possible short circuit

  • Reverse Polarity: The system will not function when the batteries are reversed

  • IP65: Ingress protection (IP65) rating for housing and connectors that can function in a rugged environment


SPECIFICATIONS

COMPATIBLE MOTOR TYPES

Induction Motor

Permanent Magnet AC (PMAC) Motor

Nominal Battery Voltage Range

24-36 V, 36-48 V, 48-80 V, 72-96 V

FREQUENCY


  • PWM (Operating)

10 kHz

  • Encoder (Maximum)

10 kHz

  • Controller Output (Maximum)

450 Hz

ELECTRICAL ISOLATION

500 VAC (Due to Heatsink)

TEMPERATURE


  • Ambient (Storage)

-40C to 95C

  • Ambient (Operating)

-40C to 50C

  • Internal (Heatsink)

85C to 95C

  • Thermal Cutback

-40C to 95C

DESIGN LIFE

20,000 Hours

1238E -75XX/-85XX: 5,000 Hours

RATING RANGE (S2)


  • 2 Minute

550-800 A

  • 60 Minute

155-355 A


PHYSICAL SPECIFICATION

WEIGHT

6.82 kg

DIMENSION

  • Length

275 mm

  • Width

232 mm

  • Depth

85 mm


ACCESSORIES COMPATIBLE WITH CURTIS 1238E

  1. Curtis 1314 - a compatible 32-bit application that runs on personal computers with Windows as an operating system that functions similarly to the handheld Curtis controller.

  2. Curtis 1313/1314 - a programmer that assists in parameter control and system diagnostics.


DIMENSIONS


WIRING DIAGRAM