Introduction
When valve positioning errors cause production delays or safety risks, the ABB V18345-1010120001 TZIDC Electro-Pneumatic Positioner delivers reliable, intelligent control. This single-acting, failsafe positioner is built for linear and rotary actuators, ensuring precise operation even in harsh conditions.
Key Technical Specifications
The V18345-1010120001 operates with a 4...20 mA input signal and provides a nominal output range of 4...20 mA. Its digital input accepts control voltages from 0...5 V DC (logic state "0") and 11...30 V DC (logic state "1"). The digital output supply voltage is 5...11 V DC per DIN 19234/NAMUR. Supply pressure ranges from 1.4...6 bar (20...90 psi), with air consumption below 0.03 kg/h (0.015 scfm), independent of supply pressure. The aluminum housing offers IP 65 / NEMA 4X protection, and the unit weighs 1.7 kg.
Industry Applications
In chemical processing, the V18345-1010120001 ensures accurate valve positioning despite corrosive atmospheres, thanks to its IP65-rated aluminum enclosure. For power generation, its failsafe output position during electrical failure prevents unsafe conditions. The wide ambient temperature range of -40...85 °C allows reliable operation in outdoor or unheated installations.
Installation & Setup Guidance
Mount the positioner to linear actuators per DIN/IEC 534/NAMUR or to rotary actuators per VDI/VDE 3845. Use cable entry threads 1/2-14 NPT and air pipe threads 1/4-18 NPT. Electrical connections accept screw terminals up to 2.5 mm² for analog signals. Ensure the supply air is clean and dry within the 1.4...6 bar range. Set the action (increasing or decreasing signal) and configure the characteristic curve (linear, equal percentage 1:25, 1:50, 25:1, 50:1, or custom with 20 points) via the operator panel.
Maintenance & Reliability
Regularly inspect pneumatic connections for leaks and verify the housing seals maintain IP65 integrity. The electrostatic dipping varnish with epoxy resin resists corrosion, reducing maintenance needs. Check the digital input/output logic levels periodically to ensure proper communication with control systems. For long-term reliability, operate within the specified ambient temperature and humidity limits.
Compatibility & Integration
The V18345-1010120001 integrates seamlessly with 4...20 mA control loops. Its digital output follows DIN 19234/NAMUR standards, making it compatible with many PLC and DCS systems. The split-range capability (minimum 20% range, recommended >50%) allows flexible pairing with various actuators. No external communication protocols are required for standard operation.
Selection Guide & Purchasing Advice
Before ordering, verify your actuator type (linear or rotary) and mounting requirements. The V18345-1010120001 includes an indicator and operator panel for local configuration. For applications needing analog or digital position feedback, consider optional modules (not included in this model). SpareTechPLC stocks this ABB positioner and can confirm current availability and lifecycle status.
Frequently Asked Questions
Q: What is the failsafe action of the V18345-1010120001?
A: This single-acting positioner moves to a safe position when electrical power fails, as specified by the "Output / safe position" parameter.
Q: Can I use this positioner in hazardous areas?
A: This model (explosion protection code "0") is without explosion protection. For hazardous environments, select a version with appropriate certification.
Q: What is the maximum cable size for electrical connections?
A: Screw terminals accept max 2.5 mm² for analog signals and max 1.0 mm² for options.
Q: How do I configure the split-range operation?
A: The signal range (4...20 mA) is freely selectable between 0...100% with a minimum range of 20% (3.2 mA). Use the operator panel to set the desired span.
Q: What is the weight of the V18345-1010120001?
A: The unit weighs 1.7 kg.
