ABB V18345-1010551001 TZIDC-120 Intelligent Valve Positioner Overview

Product Introduction

When precise valve control is critical in industrial processes, the ABB V18345-1010551001 TZIDC-120 intelligent positioner delivers reliable performance. This valve positioner is designed for linear actuators per DIN/IEC 534/NAMUR and rotary actuators per VDI/VDE 3845, with an aluminum case offering IP 65 (NEMA 4X) protection.

Technical Specifications Breakdown

The V18345-1010551001 operates with a two-wire 4...20 mA input signal, supporting split range configuration between 20% and 100% of the nominal range. Key electrical parameters include a maximum input of 25 mA / 30 V, with a minimum of 3.4 mA without analog position feedback and 3.5 mA with it. The load voltage at 20 mA is 8.7 V DC for standard units, and impedance measures 435 ohms at 20 mA. A digital input accepts 24 V DC control voltage (12...30 V DC), with logical "0" at 0...10 V DC and logical "1" at 12...30 V DC, drawing a maximum of 4 mA. The digital output follows DIN 19234/NAMUR with a supply voltage of 5...11 V DC; current below 1.0 mA indicates logical "0", and above 2.0 mA indicates logical "1", with configurable effective direction.

The pneumatic output range is 0...6 bar (0...90 psi). Air capacity at 1.4 bar supply is 5.0 kg/h (3.9 Nm³/h, 2.3 scfm), and at 6 bar supply it reaches 13 kg/h (10 Nm³/h, 6.0 scfm) with a booster available on request. The output function supports single or double acting actuators, with air vented or blocked upon electrical power failure. Shut-off values are configurable: end position 0 % = 0...45 % and end position 100 % = 55...100 %.

Industry Applications

This positioner is ideal for process industries requiring accurate valve positioning, such as chemical plants, oil and gas facilities, and power generation. Its double-acting, fail-freeze output ensures the actuator holds its last position during power loss, enhancing safety in critical loops. The IP65 aluminum housing withstands harsh environments, making it suitable for outdoor or wash-down areas.

Installation & Setup Guidance

Mount the V18345-1010551001 directly to linear actuators per DIN/IEC 534/NAMUR or rotary actuators per VDI/VDE 3845, or use the integral mounting kit. Connect the 4...20 mA two-wire input via the M20 x 1.5 cable thread and 1/4-18 NPT air pipe thread. The plug-in analog position feedback module provides a 4...20 mA signal for remote monitoring. Ensure supply air is clean and dry within the 0...6 bar range.

Maintenance & Reliability

Routine inspection of the air supply filter and electrical connections helps maintain reliable operation. The aluminum case and IP65 protection reduce environmental wear. Periodic verification of the shut-off values and output function ensures consistent performance over time.

Compatibility & Integration

This positioner integrates with standard 4...20 mA control systems from major DCS and PLC platforms. The analog feedback module provides real-time position data for closed-loop control. The digital input and output allow integration with safety or monitoring systems per NAMUR guidelines.

Selection Guide & Purchasing Advice

Before ordering the ABB V18345-1010551001, verify your actuator type (linear or rotary) and desired fail-safe action (fail freeze). Confirm the explosion protection requirement (this unit is without) and whether analog feedback is needed. BluePLC Industrial offers this model with expert support to ensure the right configuration for your application. Please verify current lifecycle status and availability with BluePLC Industrial before ordering.