Delcos 3100 Wiring Diagram «Recommended × Summary»

Delcos 3100 wiring diagram is a critical technical reference for the installation and maintenance of CompAir stationary screw compressors. It details the electrical interface between the central controller and the compressor's various sensors, motors, and communication modules. Core Wiring Components Power Supply

Loose Emergency Stop: A loose wire on the E-Stop circuit will prevent the controller from initiating a start sequence. delcos 3100 wiring diagram

Minimal example wiring diagram (textual)

Battery + → heavy wire → Alternator B+ terminal (and to starter solenoid battery post).
Battery − → chassis ground → alternator housing ground.
Ignition switch (RUN) → small wire → Dash charge lamp → alternator I/IGN (exciter).
Alternator F (field) ↔ External regulator F terminal (if used).
Regulator B → Battery +.
Regulator A → Ammeter/charge gauge (if present).

Are you seeing a specific error code on the display right now? Delcos 3100 wiring diagram is a critical technical

Safety Interlocks: In-line with the solenoid, you will often find safety switches (Oil Pressure, Water Temp, and possibly a Hydraulic Lockout switch). If these sensors detect a fault, they break the circuit to the solenoid, cutting fuel and stopping the engine.

Output terminal numbers (e.g., O:02/0).
Load wiring: One side of the load connects to the output; the other side goes to a common power source (often separate from the PLC power).
Suppression diodes: For relay outputs driving inductive loads (e.g., DC solenoids), the diagram will show a reverse diode across the load.

4. Step-by-Step Wiring Instructions

A. Power Wiring

AC version: Connect L (live), N (neutral), and PE (earth) to terminals 1,2,3.
DC version: Connect DC+ to terminal 1, DC- to terminal 2, and PE to terminal 3.
Verify voltage rating on the label.

Sensor Inputs: Terminals for pressure transducers and temperature sensors that monitor internal pressure and final temperature. Battery + → heavy wire → Alternator B+

Disclaimer: Electrical work carries risk of fire, shock, or equipment damage. Always adhere to local codes and the National Electrical Code (NEC). If you are not a trained technician, do not attempt this repair.