E3F-DS30P1 PNP Photoelectric Proxmity Switch Sensor – Normally Open User’s guide

Overview

The E3F‑DS30P1 is a cylindrical photoelectric sensor designed for long‑range object detection. It uses infrared light to sense targets and provides a PNP output, Normally Open (NO) configuration. This means the output is inactive until an object is detected, at which point the circuit closes and the output becomes active (connected to +V).

Specifications

• Model: E3F‑DS30P1
• Type: Photoelectric proximity switch
• Output: PNP, Normally Open
• Sensing distance: ~30 cm (depending on target surface)
• Supply voltage: 6–36 V DC
• Wiring: 3‑wire (Brown = V+, Blue = GND, Black = Output)
• Body: Cylindrical, threaded, with adjustable sensitivity ring

Wiring Guide

Note: Since it’s PNP NO, the black wire is normally open (inactive). When an object is detected, the black wire is driven high (+V, active).

Installation

1. Mounting: Secure the sensor using its threaded body and a bracket.
2. Alignment: Aim the lens toward the detection zone.
3. Wiring: Connect wires to your PLC, Arduino, or relay module as per the table above.
4. Adjustment: Rotate the black sensitivity ring to fine‑tune detection distance.

Operation

• No object detected → Output is open (inactive).
• Object detected → Output closes, driving the black wire high (+V, active).
• Controllers should be configured to read a high signal as “object detected.”

Applications

• Long‑range detection (up to 30 cm)
• Conveyor belt monitoring
• Position sensing in automated machinery
• Robotics and automation projects requiring PNP logic

Safety Notes

• Supply voltage must not exceed 36 V DC.
• Avoid reflective surfaces that may cause false triggers.
• Insulate exposed wires to prevent shorts.
• Test sensor response before integrating into critical systems.