48V 500A DC Motor Speed Controller fits Curtis EZGO Club Car Golf
Cart#1268-5501 Product Description
The separately excited motor speed controller, Curtis Controller Model
1268-5501, operates at a high frequency of 16 kHz, making them a noiseless and
cost-efficient choice as they allow smooth control of brake, torque, and speed.
It is designed to suit heavy-duty transport vehicles ranging from high-power
demand golf carts to utility vehicles.
The Curtis 1268-5501 is a 36-48-volt model with 500 amperes current limit and
utilizes a 0-5K ohms throttle input. It weighs 3.9 kg and is 229 mm in length,
178 mm in width, and 81 mm in depth. The design is particularly similar to
Curtis 1266 but is more suitable for heavier applications. The design is
particularly similar to Curtis 1266 but is more suitable for heavier
applications. This controller has regenerative braking and programmable
parameters as its key features. It also has well-protected components, cutback
functions, mobilization control, and WalkAway feature among others.
Specifications
The 1268-5501 SX controller has the following specifications:
NOMINAL VOLTAGE RANGE
36-48 V
MINIMUM ELECTRICAL ISOLATION
Due to Heatsink: 500 VAC
LOGIC INPUT
Power Input Voltage
16.8 V
Power Input Current
W/o Programmer: 160 mA
W/ Programmer: 200 mA
Voltage
High: Greater than 20 V
Low: Less than 7.5 V
Current
10 mA
CURRENT LIMIT
500 A
2 MINUTE RATING
Armature: 500 A
Field: 50 A
OPERATING FREQUENCY
16 kHz
THROTTLE INPUT
0-5K ohms
TEMPERATURE
Ambient (Operational)
40°C to 50°C
Under temperature Cutback (Heatsink)
25 °C (50% armature current)
Overtemperature Cutback (Heatsink)
Starts at 85 °C
Cutoff finishes at 95°C
Features and Benefits
The 1268-5501 controller has many features and benefits, making it a great
choice for your electric vehicle. Some of them are:
It has a microprocessor-based logic that provides optimal performance and
protection.
It has a programmable personality module that allows you to customize the
controller settings to suit your preferences and needs.
It has a thermal management system that prevents overheating and extends the
controller's life.
It has a diagnostic LED that indicates the controller status and fault codes.
It has a regenerative braking feature that recovers energy and reduces battery
consumption.
It has a high-frequency switching that reduces noise and electromagnetic
interference.
Applications
The 1268-5501 SX controller can be used for various .
Electric Vehicle
Physical Specifications
WEIGHT
3.9 kg
DIMENSION
Length
229 mm
Width
178 mm
Depth
81 mm
PACKAGING
IP64, IP67
Features
Feature
Purpose
Regenerative Braking
Ensures longer operation, reduces motor heating, and decreases brush wear
Adjustable and Programmable Parameters
A feature allowing control of brake, speed, and torque and to match motor
requirements
MultiMode input
The top speed of the vehicle is controlled and with applied limits along with
2 operating personalities
Hall Effect Speed Sensor
The speed control is improved due to this feature
Anti-rollback function
When driving uphill, the vehicle is inhibited to roll backward
Anti-stall function
Protects motor commutator from harm
High Pedal Disable
Allows a safe start by monitoring the status of the throttle. If the vehicle
is started with an applied throttle, this feature disables it from operating
until the throttle is returned to the neutral position
WalkAway braking
The vehicle can only operate at low speeds when off
Reverse Signal Driver
If the vehicle is reversing, it gives a low signal
Short Circuit Protection
Outputs and has integrated protection from coil spike
Buzzer Sound
Reverse: Steady
WalkAway Braking: Intermittent
Status LED
Allows viewing of diagnostics
Plastic Cover
Helps in resisting splashes
Easy Installation
No further alterations are necessary
IP64 and IP67
Ingress Protection (IP) rating that protects the controller from the rugged
environment
Accessories Compatible with Curtis 1268
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.
Curtis 1311 - a programmer that assists in parameter control and system
diagnostics.
Frequently Asked Questions & Answers
Q: How do I program the controller settings?
A: You need to use the Curtis handheld programmer (Model 1313 or Model 1314)
to access and modify the controller settings. You can connect the programmer to
the controller via the programming port on the personality module.
Q: How do I read the diagnostic LED?
A: The diagnostic LED is located on the front panel of the controller. It
flashes colors and patterns to indicate the controller status and fault codes.
You can refer to the user manual for the LED codes and meanings.
Q: How do I reset the controller?
A: You can reset the controller by turning off the key switch or disconnecting
the battery for a few seconds. This will clear any temporary faults and restore
normal operation.
Q: How do I test the throttle input?
A: You can test the throttle input by measuring the resistance between pins A2
and A3 (-) on the J1 connector of the controller. The resistance should
vary from zero to five kilohms as you move the throttle from minimum to maximum
position.
Q: How do I troubleshoot the regenerative braking feature?
A: You can troubleshoot the regenerative braking feature by checking the
following:
The brake switch is working properly and is connected to pin B+ on the J1
connector of the controller.
The brake pedal is adjusted correctly and does not activate the brake switch
at rest position.
The brake current limit is set to a suitable value in the controller settings.
The battery voltage is within the operating range of the controller.
Dimensions
Wiring Diagram
Wiring Diagram for 1268 with EM brake
Wiring Diagram for 1268 with WalkAway function
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Contactor, Battery Connector, Electronic Part, Handle & Throttle, Switch and
Multi-function HD Display for Forklift and Golf Cart.
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Brand EZSUNSWAY
Manufacturer Part Number 1268-5501, 12685501
Compatible Make E-Z-G-O, Club Car, Curtis
Compatible Model 1268-5501
Part Type DC Motor Controller
Warranty 1 Year
Unit Quantity 1
Unit Type Unit
EAN Does not apply
Compatible Year 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005,
2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
2018, 2019, 2020, 2021, 2022, 2023
Country/Region of Manufacture Unknown