Overview; Curtis Ac Induction Motor Controllers; Fig. 1: Curtis 1232E/Se, 1234E/Se, 1236E/Se, 1238E Controllers - Curtis 1232E Manual

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Fig. 1

Curtis AC induction motor controllers:

from left to right, models 1232SE, 1234E, 1236E, and 1238E.
The E and SE models look similar, and share the same standard features.
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual,
2 4 N O V E M B E R 2 0 1 5
Curtis 1232E/SE, 1234E/SE, 1236E/SE, and 1238E AC motor controllers
provide accurate, dependable, and highly efficient control of speed and torque
of AC induction motors (ACIM) and surface permanent magnet synchronous
motors (SPM).
These AC controllers contain two microprocessors to provide exceptional
capability and functional safety. The primary microprocessor runs an advanced
field-oriented AC motor control while simultaneously running VCL software in
an embedded logic controller. The second microprocessor continuously moni-
tors the operation of the system, redundantly measuring inputs, crosschecking
results, and verifying critical timing and operations.
VCL (Vehicle Control Language) is an innovative software programming
language developed by Curtis. Many electric vehicle functions are uniquely
built into the VCL code, and additional functions can be created by OEMs
as required. VCL opens new avenues of customization, allowing specific vehicle
application functions to be created quickly and easily within the motor controller
itself, often eliminating the need to use separate vehicle manager modules.
The CAN bus communications included within these controllers allow
these AC motor controllers to function as system CAN masters or CAN slaves
as part of an efficient distributed system. Inputs and outputs can be optimally
shared throughout the system, minimizing wiring and creating integrated
functions that often reduce the cost of the system.
These controllers are the ideal solution for traction, hoist, dual drive, and
other motor drive and vehicle control needs.
Like all Curtis controllers, the E and SE models offer superior operator control
of motor drive performance. Features include:
3 Closed-loop speed and torque control for both induction (ACIM) and
surface permanent magnet (SPM) motors
3 High efficiency, field-oriented motor control algorithms that enable
maximum possible motor torque generation for all operating conditions
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