NF93a-2 HESG440280R2

Description

Parameter Specifications

1. Power Supply
   The NF93a – 2 HESG440280R2 operates on a 24V DC power supply. The power consumption is kept relatively low, around 4 – 6W, which is beneficial for long – term continuous operation in industrial scenarios.
2. Input/Output Channels
   • Digital Inputs: There are 12 digital input channels. These are designed to accept signals from common industrial digital sensors like proximity sensors, reed switches, etc. The input voltage range is typically 18 – 30V DC, ensuring compatibility with a wide variety of sensors.
   • Digital Outputs: It has 6 digital output channels. Each output channel can drive a resistive load of up to 1.5A and an inductive load of up to 0.8A, suitable for controlling small – scale actuators such as relays and indicator lights.
3. Communication Interface
   The device supports the Modbus RTU communication protocol over an RS – 485 interface. This allows it to communicate with other devices in an industrial network, such as PLCs, HMIs, and SCADA systems, at a communication speed of up to 115.2 kbps.

Uses

1. Industrial Automation
   • In manufacturing plants, it can be used to monitor and control the production process. For example, it can detect the presence of workpieces on a production line using digital inputs and control the movement of small – scale conveyor belts or the activation of simple processing equipment via digital outputs.
2. Building Automation
   • In commercial or residential buildings, it can manage basic building functions. It can be connected to door sensors and occupancy sensors to control lighting in corridors or small rooms. When a person enters a room, the sensor signals are received by the digital inputs, and the device can turn on the lights through the digital outputs.
3. Agricultural Automation
   • In greenhouse farming, it can monitor environmental conditions. By connecting to sensors that detect temperature or humidity, it can control small fans or heaters. If the temperature is too high, the digital input will receive the signal, and the device can turn on the fans via the digital output to cool down the greenhouse.

Weight and Dimensions

1. Weight
   The NF93a – 2 HESG440280R2 weighs approximately 0.5 – 0.7 kg, which is relatively light, making it easy to install and handle.
2. Dimensions
   It has a compact design with dimensions around 110mm (length) x 90mm (width) x 35mm (height). This small size enables it to be installed in tight spaces within control cabinets or on DIN rails.

Characteristics

1. Compact and Cost – Effective
   • Its small size and relatively low cost make it an attractive option for small – scale industrial or building automation projects where budget and space are limited.
2. Easy to Configure
   • The device can be easily configured using simple software tools. Users can set up input/output parameters, communication settings, etc., without requiring in – depth technical knowledge.
3. Electrical Isolation
   • It features electrical isolation between input/output channels and the power supply. This helps prevent electrical interference and protects the device and connected equipment from damage.

Stability and Reliability

1. Robust Construction
   • The NF93a – 2 HESG440280R2 has a durable housing that can withstand normal industrial vibrations, dust, and moderate temperature variations.
2. Fault Protection
   • It is equipped with over – current and over – voltage protection circuits. These safeguard the device from electrical faults, ensuring reliable operation over time.
3. Long – Term Testing
   • The device has undergone long – term testing under various operating conditions to verify its stability and reliability, giving users confidence in its performance.

Actual Cases

1. Small – Scale Woodworking Shop
   • In a small woodworking shop, the NF93a – 2 HESG440280R2 was used to control the operation of a small sawing machine. It monitored the position of the wood on the workbench through a proximity sensor connected to the digital input. When the wood was in the correct position, the device sent a signal through the digital output to start the saw. This simple automation improved the efficiency and safety of the sawing process.
2. Residential Smart Home Lighting
   • In a residential building, the device was installed to control the lighting in a hallway. By connecting to a motion sensor at the entrance of the hallway, the digital input received signals when someone entered. The device then turned on the hallway lights via the digital output. When the motion sensor detected no movement for a certain period, the lights were turned off, resulting in energy savings.