ABB V18345-1010221001 TZIDC-120 Intelligent Valve Positioner

Product Overview

When process control demands precise valve positioning, the ABB V18345-1010221001 delivers reliable performance. This TZIDC-120 intelligent positioner combines an operator panel with configurable settings for linear or rotary actuators. Its aluminum case with IP 65 protection suits harsh industrial environments.

Key Technical Specifications

The V18345-1010221001 accepts a 4-20 mA two-wire input signal. It supports split range configuration between 20% and 100% of the nominal range. Maximum input is 25 mA at 30 V. Minimum current without analog position feedback is 3.4 mA, and 3.5 mA with feedback. The load voltage at 20 mA is 8.7 V DC without explosion protection. Impedance at 20 mA is 435 ohms without explosion protection.

For digital input, control voltage is 24 V DC (12-30 V DC). Logic levels are 0-10 V DC for logical "0" and 12-30 V DC for logical "1", with maximum current of 4 mA. The digital output follows DIN 19234/NAMUR with supply voltage of 5-11 V DC. Current below 1.0 mA indicates logical "0", above 2.0 mA indicates logical "1". Effective direction is configurable.

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

Industry Applications

This positioner excels in chemical processing, oil and gas, and power generation where accurate valve control is critical. The fail freeze action ensures the actuator holds its last position during electrical power failure, preventing sudden process changes. The analog position feedback module (4-20 mA) enables remote monitoring of valve position.

Installation and Setup

Mount the V18345-1010221001 to linear actuators per DIN/IEC 534/NAMUR or rotary actuators per VDI/VDE 3845. Use cable thread 1/2-14 NPT and air pipe thread 1/4-18 NPT connections. Configure the split range and direction settings via the operator panel during commissioning.

Maintenance and Reliability

Regular inspection of air connections and electrical wiring ensures long service life. The IP 65 aluminum housing protects against dust and water jets. Verify the supply pressure remains within the specified range to maintain air capacity performance.

Selection and Purchasing Advice

Before ordering, confirm your actuator type (linear or rotary) and whether you need the analog position feedback module. The V18345-1010221001 includes this module. Contact BluePLC Industrial to verify current lifecycle status and availability.