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:
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 vehicles.
Electric Vehicle
Physical Specifications
Features
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
