The manual includes a :

If you found this article helpful, bookmark the official Curtis Instruments documentation portal and always back up your parameters before making changes.

The controller features three high-current busbars (, B- , and M- ) for battery and motor connections.

Troubleshooting Checklist

Compatible with 5kΩ 3-wire potentiometers and 0–5V throttles.

Four-quadrant regenerative braking provides smooth slowing down and direction changes.

Comprehensive Guide to the Curtis 1520 Controller Manual: Operation, Programming, and Troubleshooting The Curtis 1520-5501 Go to product viewer dialog for this item.

Proper wiring is critical for both the high-current power circuit and the low-current control circuit. Incorrect wiring can instantly destroy the controller.