Control Panel (PLC/HMI) for Depyrogenation Tunnels

Product Specifications

Technical details and manufacturing context for Control Panel (PLC/HMI)

Definition

This control panel is a specialized component designed for depyrogenation tunnels used in pharmaceutical and related industries. It houses the Programmable Logic Controller (PLC) and Human-Machine Interface (HMI) in a single enclosure, serving as the central command unit for the tunnel's operation. The panel enables operators to set temperature profiles for different zones, control conveyor belt speed, monitor real-time process parameters such as temperature, pressure, and air flow, manage alarms, and log batch data. Its primary function is to ensure the tunnel effectively removes pyrogens (endotoxins) from glassware or components through dry heat sterilization. The panel is constructed with a powder-coated steel enclosure, a polycarbonate HMI touchscreen, copper electrical components, and FR-4 printed circuit boards for the PLC. It operates on a single-phase power supply of 220–240 V AC (50/60 Hz) and consumes between 150 and 300 W depending on HMI size and backlight. The operating temperature range is 0–50 °C, with storage from -20 to 60 °C, and relative humidity of 10–90% non-condensing. The enclosure offers ingress protection ratings from IP54 to IP65. The HMI features a TFT color display ranging from 7 to 15 inches with resolutions from 800×480 to 1920×1080 pixels. The PLC provides 16–64 digital inputs and outputs (24 V DC, sink/source), 4–16 analog inputs, and 2–8 analog outputs (0–10 V or 4–20 mA). Communication interfaces include Ethernet, RS-232, and RS-485 for SCADA and remote I/O. Panel dimensions vary from 300×200×150 mm to 600×400×300 mm. All specifications are reference ranges and must be verified with the legal manufacturer for the specific model and application.

Working Principle

The PLC executes a pre-programmed sequence based on operator inputs from the HMI. It receives signals from temperature sensors, pressure sensors, and motor encoders throughout the tunnel. The PLC processes this data, compares it to setpoints, and outputs control signals to adjust heating elements, blower motors, and the conveyor drive to maintain the required depyrogenation cycle, typically involving heating, holding at high temperature (~250°C), and cooling phases. The HMI provides visualization of the process, touch-screen controls, and data logging.

Common Materials

Powder-coated steel enclosure, Polycarbonate HMI touchscreen, Copper electrical components, FR-4 PCB (for PLC)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Voltage	220–240 V AC	Single phase, 50/60 HzIEC 60204-1
Power Consumption	150–300 W	Depends on HMI size and backlight
Operating Temperature	0–50 °C	For PLC and HMI componentsIEC 61131-2
Storage Temperature	-20–60 °C	Non-operating conditionIEC 61131-2
Relative Humidity	10–90 %	Non-condensingIEC 61131-2
Ingress Protection	IP54–IP65	For panel front and enclosureIEC 60529
HMI Screen Size	7–15 inch	TFT color display
HMI Resolution	800×480–1920×1080 pixels	Depends on screen size
PLC Digital Inputs	16–64	24 V DC, sink/sourceIEC 61131-2
PLC Digital Outputs	16–64	Relay or transistorIEC 61131-2
Analog Inputs	4–16	0–10 V or 4–20 mAIEC 61131-2
Analog Outputs	2–8	0–10 V or 4–20 mAIEC 61131-2
Communication Interface	Ethernet, RS-232, RS-485	For SCADA and remote I/OIEC 61158
Panel Dimensions (W×H×D)	300×200×150–600×400×300 mm	Varies with configuration

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

PLC Unit
The central processing unit that executes the control logic, reads inputs from sensors, and sends output commands to actuators (heaters, motors, valves).

Material: Electronic components on PCB, housed in plastic/metal casing
HMI Touchscreen Display
Provides graphical user interface for operators to monitor process variables, input setpoints, acknowledge alarms, and view historical data.

Material: Polycarbonate/glass screen, LCD/LED panel
Power Supply Unit (PSU)
Converts incoming AC mains voltage to regulated DC voltages required by the PLC, HMI, and other low-voltage components within the panel.

Material: Electronic components (transformers, capacitors, ICs) in metal housing
Terminal Blocks
Provide secure connection points for field wiring from tunnel sensors (thermocouples, pressure sensors) and actuators to the PLC's I/O modules.

Material: Plastic body with metal (copper alloy) conductive parts
Circuit Breakers/Disconnect Switch
Provides overcurrent protection for internal circuits and a means to safely isolate power to the panel for maintenance.

Material: Thermoplastic casing, metal contacts and springs

Applied To / Applications

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

Depyrogenation Tunnel

View system integration details

Manufacturers of Control Panel (PLC/HMI)

Manufacturer profiles associated with Control Panel (PLC/HMI).

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the primary function of this control panel?

It serves as the central command unit for a depyrogenation tunnel, allowing operators to set temperature profiles, control conveyor speed, monitor process parameters, manage alarms, and log batch data to ensure effective removal of pyrogens via dry heat sterilization.

What are the key electrical specifications?

The panel operates on 220–240 V AC single phase (50/60 Hz) and consumes 150–300 W. The PLC provides 16–64 digital I/O, 4–16 analog inputs, and 2–8 analog outputs. Communication interfaces include Ethernet, RS-232, and RS-485.

What environmental conditions can the panel withstand?

The operating temperature range is 0–50 °C, storage from -20 to 60 °C, and relative humidity 10–90% non-condensing. The enclosure offers IP54–IP65 ingress protection.

How should I verify the suitability of this panel for my application?

All specifications are reference ranges. You must confirm model-specific values, standards compliance, and compatibility with your depyrogenation tunnel by consulting the legal manufacturer or supplier.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric (non-pressurized environment)
other spec:	IP65/NEMA 4X rating for washdown environments, 24VDC power supply, 0-100% relative humidity (non-condensing)
temperature:	Ambient to 60°C (operating environment), -20°C to 85°C (storage)

Control Panel (PLC/HMI)

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

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Compliance & Manufacturing Standards