Signal Processor / Control Unit for Foreign Object Detection

Product Specifications

Technical details and manufacturing context for Signal Processor / Control Unit

Definition

The Signal Processor / Control Unit is a specialized electronic module used within foreign object detection systems. It receives raw signals from detection sensors such as X-ray, metal detection, or optical sensors. The unit processes these signals using algorithms to identify foreign objects, distinguishing them from the product material. Based on preset thresholds, it makes contamination decisions and outputs control signals to actuate response mechanisms like alarms, rejectors, or production line stops, thereby removing contaminants from the production flow. The unit is designed for integration into machinery and equipment manufacturing environments, typically mounted on a DIN rail. It features a supply voltage of 24 V DC ±10% with reverse polarity protection, conforming to IEC 61131-2. Power consumption ranges from 5 to 15 W, depending on the number of sensors connected. It supports 4 to 16 configurable input channels, with analog current loop input signals of 4–20 mA (IEC 60381-1) and analog voltage output signals of 0–10 V (IEC 60381-2). The response time from sensor input to output is ≤10 ms, and accuracy is ±0.5% of full scale (IEC 60770). Operating temperature ranges from -20 to 60 °C (IEC 60068-2-1), storage temperature from -40 to 85 °C (IEC 60068-2-2), and relative humidity up to 95% non-condensing (IEC 60068-2-78). The enclosure is powder-coated aluminum (ASTM B209) with ingress protection ratings of IP54 to IP65 (IEC 60529) for indoor use. Weight varies from 1.5 to 3.0 kg depending on configuration, and dimensions are 200×120×60 mm (W×H×D). The unit is constructed with a printed circuit board, integrated circuits, and electronic components. All listed values and standards are reference ranges that must be verified with the legal manufacturer or supplier for the specific model and application.

Working Principle

The unit receives analog or digital signals from detection sensors. It amplifies and filters the signals to remove noise, then applies detection algorithms to distinguish between product materials and foreign objects. Based on preset thresholds, it makes contamination decisions. When contaminants are detected, it outputs control signals to actuate rejection mechanisms, such as pneumatic rejectors or conveyor stops. The unit also monitors its own status and can provide diagnostic information for maintenance.

Common Materials

Printed Circuit Board, Integrated Circuits, Electronic Components

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	24 ±10% V DC	Reverse polarity protectedIEC 61131-2
Power Consumption	5–15 W	Depends on number of sensors
Number of Input Channels	4–16	Configurable
Input Signal Type	4–20 mA	Analog current loopIEC 60381-1
Output Signal Type	0–10 V	Analog voltageIEC 60381-2
Response Time	≤10 ms	From sensor input to output
Accuracy	±0.5 % FS	Full scaleIEC 60770
Operating Temperature	-20–60 °C	Extended range availableIEC 60068-2-1
Storage Temperature	-40–85 °C	Non-condensingIEC 60068-2-2
Relative Humidity	≤95 % RH	Non-condensingIEC 60068-2-78
Ingress Protection	IP54–IP65	For indoor useIEC 60529
Enclosure Material	Aluminum	Powder coatedASTM B209
Weight	1.5–3.0 kg	Depends on configuration
Dimensions (W×H×D)	200×120×60 mm	DIN rail mount

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Signal Conditioning Circuit
Amplifies and filters raw sensor signals for processing

Material: Electronic components on PCB
Processing Module
Executes detection algorithms to identify foreign objects

Material: Microprocessor/FPGA
Control Interface
Outputs signals to control rejection mechanisms and system status

Material: Relays/Transistors on PCB
Communication Port Part
Enables data exchange with HMI and production control systems

Material: Connectors and interface chips

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Foreign Object Detection

View system integration details

Manufacturers of Signal Processor / Control Unit

Manufacturer profiles associated with Signal Processor / Control Unit.

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Frequently Asked Questions

What is the supply voltage and polarity protection?

The supply voltage is 24 V DC ±10% with reverse polarity protection, per IEC 61131-2. Verify the exact requirements with the manufacturer.

How many input channels are available?

The unit supports 4 to 16 configurable input channels, depending on the configuration. Confirm the number needed for your application.

What are the input and output signal types?

Input signals are analog current loop 4–20 mA (IEC 60381-1), and output signals are analog voltage 0–10 V (IEC 60381-2). Other types may be available; check with the supplier.

What is the response time and accuracy?

Response time from sensor input to output is ≤10 ms, and accuracy is ±0.5% of full scale (IEC 60770). These are reference values; verify for your specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 10 bar
other spec:	IP67 ingress protection, 24V DC power supply
temperature:	-20°C to +60°C (operating), -40°C to +85°C (storage)

Signal Processor / Control Unit

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards