Curtis 3501 Manual

Always disconnect the main battery pack before working on the electrical system to prevent accidental shorts and arcs.

The Curtis 3501 operates using high-frequency Pulse Width Modulation (PWM) technology, which allows for efficient power delivery to the motor while reducing battery drain and motor heating. Core Features

Ensure Pin 3 (Signal) is receiving the correct voltage. Most units require a high signal to trigger the timer.

Press and hold Button 1 () to enter configuration options. Cycle up or down using Buttons 2 and 3. curtis 3501 manual

: Tied internally for localized network bus termination.

The is a vital tool for ensuring your industrial equipment stays operational and your batteries stay healthy. By following the correct wiring diagrams and understanding the display signals, you can significantly extend the life of your vehicle's electrical system.

: Connects to the motor armature winding negative terminal (controls motor speed via PWM switching). Always disconnect the main battery pack before working

Solenoid contacts welded, stuck open, or coil wire disconnected.

For a throttle: Measure voltage. It should scale smoothly from 0V up to 5V as the pedal is pushed.

Proper installation is critical for the long-term reliability of the instrument panel. Most units require a high signal to trigger the timer

Plug diode / armature bypass connection (if applicable to your specific series motor configuration). Low-Current Logic Control

Built-in LED output and compatibility with Curtis handheld programmers. 2. Wiring and Pin Configurations

: Uses five front-panel buttons and a customizable LCD with bar graphs and flashing icons for visual warnings.

: The Battery Discharge Indicator can be adjusted to match the specific discharge curve of your battery type (Lead Acid, Li-ion, etc.).