Cummins Speed Controller S6700h Wiring Diagram Here

This is the "eyes" of the system. The magnetic pickup (MPU) is mounted near the flywheel ring gear. It generates an AC voltage signal proportional to engine speed.

Never disconnect the actuator wiring while the engine is running. This creates a high-voltage flyback spike that can destroy the controller’s output stage.

“The first time I saw a Cummins S6700H wiring diagram, I thought it was a map of a small, ruthless city. Terminals 11 and 12 were the power grid. Terminal 22 was the speed sensor watching from the flywheel. And the actuator output—terminal 27—was the mayor, deciding how much fuel the engine would get, thousands of times a minute.” cummins speed controller s6700h wiring diagram

Automatically reacts if the speed sensor signal is lost, preventing a runaway condition. Over-speed Alarm:

Key features of the S6700H typically include: This is the "eyes" of the system

The Cummins S6700H speed controller is an all-electronic device used to maintain a constant engine speed in response to load changes

The wiring diagram is the blueprint that integrates the S6700H with the engine’s battery, ignition switch, magnetic pickup, actuator, and remote speed pot. Never disconnect the actuator wiring while the engine

| Terminal | Label | Function & Wiring | | :--- | :--- | :--- | | | AUX IN | Speed Trim Input (0 to +5V or 4-20mA depending on configuration). | | 9 | REF OUT | +5V Reference Voltage for external potentiometer. | | 10 | SIG RTN | Signal Return (Ground for AUX IN and REF OUT). |

Used for load sharing or synchronizing equipment. This input allows external signals from a load distributor to adjust the speed automatically. Yangzhou Yongcai Machinery Co., Ltd. Installation and Protection Features