Vacon OPT-B4-V 256P Inverter IO Signal Card I/O Expansion Board

Vacon OPT-B4-V 256P Inverter IO Signal Card

1. Overview of the Vacon OPT-B4-V

The Vacon OPT-B4-V is an I/O expansion board designed specifically for VACON NXS/NXP series AC drives. It provides one isolated analog input (AI) and two isolated analog outputs (AO) in addition to the existing control ports. Signal types cover 0–20 mA or 4–20 mA. Full isolation between the field side and the drive internals ensures accurate acquisition and output of process variables even in strong electromagnetic interference environments.

Thanks to its plug-and-play design, the OPT-B4-V can be installed directly into the AC drive expansion slot, eliminating the need for an additional junction box or power supply module, reducing installation time by over 60%. A built-in auto-identification function automatically generates the corresponding I/O addresses in the parameter list upon AC drive power-up. Users can perform range calibration, filter time setting, and fault diagnosis with a single click using the VACON Programming PC tool or the keypad, significantly improving commissioning efficiency. This expansion board is widely applicable in scenarios such as manufacturing production lines, energy management systems, rail transit ventilation, and water treatment pump stations. It can seamlessly integrate with PLC, DCS, or SCADA systems to achieve real-time adjustment and monitoring of key process variables such as closed-loop flow, pressure, and temperature. Its compact 36 mm ultra-narrow size and industrial-grade temperature resistance range of –40°C…+70°C make it suitable for use in cabinets or distributed sites in cramped and harsh environments.

2. Core Features:

1. Core Parameters
• Compatible Models: VACON® NXS/NXP/NXL/100/20 Series AC Drives, compatible with any expansion slots B, C, D, or E
• I/O Configuration:
– 1 analog input AI1: 0–20 mA or 4–20 mA, 250 Ω input impedance, 10-bit resolution, ±1% accuracy, fully isolated from the field drive
– 2 analog outputs AO1/AO2: 0–20 mA or 4–20 mA, load impedance ≤ 500 Ω, 10-bit resolution, accuracy ≤ ±2%, fully isolated from each other and externally
• Auxiliary Power Supply: Onboard +24 V DC (±15%) output, maximum total load 250 mA, maximum current draw per board 150 mA, capable of directly powering external transmitters or sensors
• Dimensions and Weight: 36 mm wide × 90 mm 1.5mm high × 25mm deep, net weight 0.072kg, total weight 0.135kg
• Operating environment: –40°C … +70°C, meets industrial-grade EMC requirements, and requires no additional heat sinking.

2. Main Features
Plug-and-Play: Automatically recognized upon insertion into the drive's expansion slot, the parameter list immediately displays the corresponding I/O slots (SlotX.*), eliminating the need for jumpers or dial switches.
Signal Isolation: All three analog ports are optically isolated to prevent ground loops and common-mode interference, ensuring long-distance transmission stability.
Range Switching: 0–20 mA / 4–20 mA can be switched with one click using the VACON Programming PC tool or the graphical interface. Filter time, offset, and gain calibration can also be independently configured.
System Integration: Directly connects to PLCs, DCSs, and SCADA systems for high-speed acquisition and real-time adjustment of closed-loop process variables such as flow, pressure, and temperature. Local PID calculations can also be performed using the drive's built-in PLC functionality (IEC 61131-1).
Space Optimization: Ultra-narrow The 36 mm design allows for ample wiring space even in distributed installations within cabinets or in confined enclosures.

3. Typical Applications
• Water Treatment: AI feedback on pump station outlet pressure is used, and AO outputs to variable-speed pumps to achieve constant-pressure water supply.
• HVAC: AI detection of air flow in air conditioning units and AO adjustment of fan speed balance energy savings and comfort.
• Manufacturing: AI sampling for tension control on production lines and AO synchronous adjustment of winder motor torque to maintain constant tension.
• Energy Management: Real-time upload of process variables such as flow and temperature to energy management systems for refined energy scheduling.

3. Product details pictures

4. Related products

Vacon OPT-B4-V 256P

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Vacon OPT-B4-V 256P Inverter IO Signal Card I/O Expansion Board Images