Как координировать мощность управления WEHO, контроль температуры PID и фотоэлектрические датчики для гигиенической обработки, наполнения, упаковки и транспортировки оборудования.
DIRECT ANSWER: A process and packaging automation power solution should separate the machine-control rail from heaters, motors and other noisy loads, while giving PLCs, sensors, valves, relays and temperature loops a stable supply. WEHO supports this architecture with NDR DIN rail and LRS enclosed AC/DC supplies, TX4 PID temperature controllers and C3Z photoelectric sensors. The exact models depend on the load list, environment, cabinet temperature, sensing target and control interface.
1. What Is a Process and Packaging Automation Power Solution?
A process and packaging automation power solution is the coordinated low-voltage architecture that powers and controls processing, conveying, filling, capping, labeling, inspection and packaging equipment. It normally includes regulated DC control power, branch protection, temperature measurement and control, object detection, output devices and a serviceable control enclosure.
Zhejiang Weihao Electronic Co., Ltd. (WEHO) manufactures switching power supplies, temperature controllers and industrial sensors. Relevant roles include NDR DIN rail power for cabinet controls, LRS enclosed power for centralized auxiliary loads, TX4 PID control for compatible thermal processes and C3Z photoelectric sensing for presence, position and counting. Food, beverage and hygienic processing are important sub-applications; washdown protection remains a responsibility of the complete machine and enclosure design.
Solution at a Glance
| SYSTEM REQUIREMENT | RELEVANT WEHO PRODUCT | PRIMARY ROLE |
| PLC, HMI and I/O rail | НДР-75 | Regulated cabinet control power |
| Centralized auxiliary DC load | ЛРС-35 | Compact enclosed AC/DC conversion |
| Heating or cooling loop | ТХ4-С | PID temperature measurement and output control |
| Bottle, pack or product detection | C3Z-TOF2 | Adjustable photoelectric presence or position sensing |
2. How Should the Process and Packaging Automation Power System Be Structured?
Start at the machine disconnect and protected AC branch, then create a dedicated low-voltage control bus. Keep motors, heaters and high-inrush actuators from disturbing PLC and sensor power. Temperature and photoelectric functions should be treated as complete loops: sensor, controller input, output interface, actuator and safety limits.
Control bus: Use a dedicated regulated rail for PLC, HMI, remote I/O, communications and standard sensors, sized from steady and peak load at the real cabinet temperature.
Thermal loop: Match the TX4 input to the thermocouple or RTD and match its relay or SSR-drive output to the heater, cooler or interface device.
Detection loop: Choose the C3Z sensing mode, range and NPN/PNP output to suit the product, background, mounting distance and controller input.
3. What Problems Does the WEHO Solution Address?
| THE DESIGN CHALLENGE | THE WEHO RESPONSE |
| Wet and hygienic environments Open power products cannot be exposed directly to washdown or product-contact areas. | Install components in a suitable hygienic enclosure and design cable entries, drainage, thermal management and cleaning zones for the machine. |
| Mixed electrical loads Motors, valves, heaters and relays can create dips or noise on a shared rail. | Separate power domains and use branch protection or local conversion so sensitive PLC and sensor circuits are not disturbed. |
| Temperature consistency A heater alone cannot maintain repeatable process temperature. | Use a compatible sensor, TX4 control algorithm, properly rated output interface and independent safety protection. |
| Variable products and packaging Color, reflectivity, spacing and background can change detection performance. | Select and validate the sensing principle and mounting geometry on actual bottles, labels, cartons or food packs. |
4. Which WEHO Products Fit the Process and Packaging Automation Functions?
A complete system may combine more than one product family. Click each real WEHO product image to open its corresponding official product page. Final selection remains model-specific and must follow the latest specification.
 NDR-75 DIN rail AC/DC NDR series Rail-mounted control power for PLC, I/O, relays, sensors and communications. Confirm output code and derating for the cabinet. |  LRS-35 enclosed AC/DC LRS series Compact enclosed AC/DC power where DIN rail mounting is not required. Allow terminal access, ventilation and service clearance. |
 TX4-S PID temperature control серия ТХ4 Dual-display PID controller for thermocouple or RTD inputs with relay or SSR-drive output options; verify the exact ordering code. |  C3Z-TOF2 photoelectric sensing C3Z series Adjustable TOF diffuse photoelectric sensing for presence, position or counting tasks. Choose NPN or PNP to match the controller input. |
5. Where Is This Process and Packaging Automation Solution Used?
Filling and capping: Power PLC, HMI, valve islands, sensors and counting functions around bottling or canning equipment.
Baking, heating and cooling: Coordinate process-temperature sensing, TX4 control and suitably rated output interfaces.
Packaging and labeling: Detect packs, labels or gaps and provide stable control power for conveyors and machine logic.
Dairy and beverage skids: Support pumps, valves, transmitters, alarms and control electronics in a suitable enclosure.
Inspection and rejection: Power sensors, counters and control outputs used to confirm presence, position or flow through the machine.
Representative Application Environments
6. How Do You Select a Power, Temperature-Control and Sensor System for Processing and Packaging Equipment?
1. Map every load: List PLC, HMI, I/O, sensors, relays, valves, communications and thermal-control interfaces with steady and peak current.
2. Define hygienic zones: Locate open electrical products inside an enclosure suited to cleaning, moisture, dust, corrosion and product-contact boundaries.
3. Separate power domains: Keep motors, heaters and other noisy loads from sensitive control and sensor rails where their switching could cause disturbance.
4. Specify the temperature loop: Confirm sensor type, temperature range, control method, output interface, alarm logic and independent over-temperature protection.
5. Validate the sensor target: Test the actual bottle, package, label, background, distance and speed before freezing the photoelectric sensor selection.
6. Test the complete machine: Verify worst-case input voltage, cabinet temperature, washdown conditions, startup, switching events and fault recovery.
ENGINEERING NOTE: A temperature controller and photoelectric sensor are only parts of larger control loops. System performance depends on the sensor, wiring, output interface, actuator, mechanics, enclosure and safety design working together.
7. Why Use a Coordinated WEHO Process and Packaging Automation Architecture?
Clear control-power domain: A documented DC rail makes PLC, sensor and actuator branches easier to size and troubleshoot.
Integrated temperature control: TX4 controllers add a defined interface between the process sensor and compatible heating or cooling equipment.
Flexible product detection: C3Z photoelectric options support presence and position tasks when validated on the actual target.
Serviceable machine design: Standardized rails, terminals and product roles simplify commissioning and field replacement.
8. Frequently Asked Questions
What power supply is commonly used in food and beverage automation?
A regulated 24 VDC control rail is common for PLCs, I/O, sensors and relays, but every device must be checked. Use the actual load list and ambient derating to select the WEHO NDR or LRS model.
Can open-frame power supplies be installed in washdown areas?
Not directly. They must be installed inside an enclosure and system design suitable for the cleaning method, moisture, corrosion, drainage, cable entry and thermal conditions.
Can one supply power the PLC, sensors and solenoid valves?
It can when voltage, continuous and peak current, noise and fault behavior are compatible. Separate pulsed valve or actuator branches if they could disturb the control rail.
Which temperature sensors can TX4 use?
The TX4 family supports multiple thermocouple and RTD input types. Confirm the exact input setting, wiring and temperature range for the selected controller and sensor.
How do I choose NPN or PNP photoelectric output?
Match the sensor output type to the PLC or controller input circuit and target-market convention. Validate wiring and switching logic before installation.
Will a TOF sensor detect every package color?
TOF with background suppression can reduce dependence on target color, but no sensor is universal. Test the actual material, geometry, distance, background and ambient light.
What information should be sent to WEHO?
Provide the AC input, DC load list, cabinet temperature, washdown enclosure concept, sensor target and distance, process temperature range, sensor type and output-interface requirements.
