Prouser SCM30 Operating Manual

The Prouser SCM30 is a high-precision industrial smart sensor module designed for real-time monitoring and control applications. It features a 30mm sensing range, digital I/O interfaces, configurable analog outputs, IP67-rated housing, programmable logic functions, and communication via RS-485 Modbus RTU. Operating on 12-24V DC, it includes built-in diagnostics, temperature compensation, and software configuration tools. Below are key sections for safety, features, installation, configuration, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operating Modes 8. Advanced Functions 9. Maintenance & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Sensing head with integrated electronics, Configuration cable, Mounting bracket, Status LEDs, Digital outputs, Analog voltage/current outputs.

Feature	Description
Sensing Range	0-30mm with ±0.1mm repeatability
Outputs	2x PNP/NPN configurable, 1x analog (0-10V/4-20mA)
Input Voltage	12-24V DC ±10%
Communication	RS-485 Modbus RTU (address 1-247)
Housing	IP67 rated stainless steel M30 housing
Status Indicators	Power (green), Output (yellow), Fault (red)
Response Time	Adjustable 1ms to 100ms
Temperature Range	-25°C to +70°C operating
Teach Function	One-button teach for setpoint programming
Logic Functions	AND/OR, window mode, hysteresis adjustment

Installation

Unpack and inspect contents. Ensure proper mounting location.

Mount sensor: Use provided M30 bracket; secure with 22mm wrench.
Connect power: Wire DC power to terminals 1(+) and 2(-).
Connect outputs: Wire digital outputs to terminals 3 and 4; analog to terminal 5.
Connect communication: RS-485 to terminals A(+) and B(-) with termination if needed.
Apply power and verify green LED illuminates.

WARNING! Disconnect power before installation. Ensure proper grounding to prevent electrical damage.

First-Time Setup

Power on sensor; follow configuration steps.

Set operating mode: Press TEACH button for 3 seconds to enter setup mode.
Configure outputs: Use configuration software or teach button to set switching points.
Set communication: Configure Modbus address and baud rate (default 9600, 8N1).
Calibrate: Use reference target at 15mm distance for optimal calibration.
Save settings: Press TEACH button for 5 seconds to store configuration.

CAUTION! Ensure target material matches calibration material for accurate measurements.

Specifications

Sensing Principle: Inductive proximity sensing.
Measurement Range: 0-30mm nominal.
Repeatability: ±0.1mm typical.
Linearity Error: < ±0.5% full scale.
Output Types: 2x digital (PNP/NPN), 1x analog programmable.
Load Current: 200mA max per digital output.
Protection: Reverse polarity, short circuit, overload.
Connections: 5-pin M12 connector or terminal block.
Weight: 150g excluding cable.
Certifications: CE, RoHS, IP67.

Controls and Settings

Access settings via TEACH button or configuration software. Front Panel: Power LED, Output LED, Fault LED, TEACH button.

Software Interface: Prouser ConfigTool for Windows. Parameters: Sensing mode, Output logic, Hysteresis, Response time, Analog scaling, Communication settings.

Digital Outputs: Configurable as normally open/closed, light/dark operate. Analog Output: Selectable 0-10V or 4-20mA, linear/inverse scaling. Advanced: Temperature compensation, filtering, multi-point calibration.

Connecting Devices

Power: 12-24V DC. PLC: Digital inputs. Controller: Analog input. Network: RS-485 daisy chain.

Turn off power before making connections.
Use shielded cable for analog and communication lines.
Connect shield to ground at controller end only.
For RS-485 networks, terminate last device with 120Ω resistor.
Verify connections match pinout diagram.

Tip: Keep communication cables separate from power cables to reduce noise.

Operating Modes

Supports multiple detection and output modes.

Standard Mode: Single switching point with adjustable hysteresis.
Window Mode: Two switching points defining acceptable range.
Analog Mode: Continuous distance measurement via analog output.
Teach Mode: Learn target positions via button or software.
Logic Mode: AND/OR combinations of sensing values.
Batch Mode: Count objects with programmable batch size.
IO-Link Mode: Advanced parameterization and diagnostics (optional).

WARNING! Do not exceed maximum switching frequency of 1kHz to prevent damage.

Advanced Functions

Temperature Compensation: Automatic adjustment for ambient temperature changes. Diagnostics: Built-in fault detection for overload, short circuit, temperature. Data Logging: Store up to 1000 measurement values (optional). Multi-sensor Synchronization: Coordinate multiple sensors via RS-485.

Maintenance & Cleaning

Disconnect power before maintenance. Clean sensing face with isopropyl alcohol and soft cloth. Check mounting hardware quarterly for tightness.

CAUTION! Do not use abrasive cleaners or compressed air directly on sensing face. Avoid mechanical impacts.

Regulatory Information

EMC Directive 2014/30/EU: Complies with emission and immunity requirements. Low Voltage Directive 2014/35/EU: Safe for intended use. RoHS Directive 2011/65/EU: Contains no restricted substances above thresholds. Copyright © 2023 Prouser Technologies; all trademarks property of their owners. For support, visit www.prouser-tech.com or contact +1-800-555-8732.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power LED	Incorrect voltage/polarity	Verify 12-24V DC; check polarity; measure at terminals.
Erratic measurements	Electrical noise/grounding	Use shielded cable; ensure proper grounding; add filter.
Output not switching	Wrong mode/teaching	Re-teach switching points; verify output configuration.
Communication failure	Address/baud mismatch	Check Modbus address and baud rate; verify termination.
Red fault LED	Overload/short circuit	Check load current; verify wiring; power cycle.
Analog output drift	Temperature variation	Enable temperature compensation; recalibrate.

Reset to Defaults: Hold TEACH button for 10 seconds during power-up.

Service: +1-800-555-8732; www.prouser-tech.com/support