Must be wired to a normally closed (NC) E-stop button. If this loop opens, the controller drops all outputs immediately.
Typically a PT100 or PT1000 RTD element placed at the air/oil separator block. delcos 3100 wiring diagram
24V DC and 24V AC distribution lines run through discrete circuit breakers to protect the central microprocessor. Must be wired to a normally closed (NC) E-stop button
⚠ Disconnect all power before wiring. Consult the exact OEM manual for terminal numbering, as variations exist. 24V DC and 24V AC distribution lines run
The wiring for a Delcos 3100 system typically divides into power supply, sensor inputs, and control outputs. According to the Delcos 3100 User Manual , the following connections are standard:
First, it is critical to understand what the DELCOS 3100 is. It is a dedicated industrial controller used extensively on stationary screw compressors manufactured by CompAir and also found on some Gardner Denver oil-free units. It is not a simple display but a complete control and protection unit governing start/stop logic, load/unload control, temperature and pressure monitoring, alarm handling, and maintenance interval tracking. It communicates via RS-485 and can be part of a base load selection (BLS) circuit, networking up to five compressors for coordinated operation.