Product Introduction
When process control demands precise valve positioning in harsh industrial environments, the ABB V18345-1010421001 TZIDC Electro-Pneumatic Positioner delivers reliable performance. This intelligent, configurable positioner features an integrated indicator and operator panel, making setup and monitoring straightforward. Designed for linear actuators per DIN/IEC 534/NAMUR and rotary actuators per VDI/VDE 3845, it mounts directly to the actuator.
Technical Specifications Breakdown
- Input Signal: 4...20 mA, two-wire with connector plug for LKS adapter.
- Output / Safe Position: Double acting, fail-safe in case of electrical power failure.
- Analog Position Feedback: Plug-in module with 4...20 mA output.
- Digital Input: Control voltage 0...5 V DC (logical "0") and 11...30 V DC (logical "1").
- Digital Output: Supply voltage 5...11 V DC per DIN 19234/NAMUR.
- Supply Pressure: 1.4...6 bar (20...90 psi).
- Air Consumption: < 0.03 kg/h / 0.015 scfm (independent of supply pressure).
- Housing: Aluminum, IP 65 / NEMA 4X, varnished black RAL 9005 matte.
- Pneumatic Connections: Threads 1/4-18 NPT.
- Weight: 1.7 kg.
- Certifications: ATEX Ex II 2G EEx ib IIC T6 (intrinsically safe) and ATEX II 3G EEx n A II T6 (Zone 2), IECEx Ex ib IIC T6.
Industry Applications
In chemical processing plants, the V18345-1010421001 controls corrosive media flow with its IP 65 aluminum housing and fail-safe double-acting output. For oil and gas applications requiring intrinsic safety, the ATEX and IECEx certifications allow installation in hazardous areas up to Zone 1. The analog position feedback module provides real-time valve status to DCS or PLC systems, enhancing process visibility.
Installation & Setup Guidance
Mount the positioner directly to the actuator using the provided NAMUR or VDI/VDE 3845 interface. Connect the 4...20 mA input signal via the two-wire LKS adapter plug. For pneumatic connections, use 1/4-18 NPT air piping. Ensure supply pressure is within 1.4...6 bar. Configure the digital input for fail-safe logic: 0...5 V DC for logical "0" and 11...30 V DC for logical "1". The analog feedback module outputs 4...20 mA for position monitoring.
Maintenance & Reliability
Regularly inspect the aluminum housing for corrosion or damage, especially in aggressive environments. Verify the pneumatic connections are tight and free of leaks. Check the digital output supply voltage (5...11 V DC) periodically. The low air consumption (<0.03 kg/h) reduces operational costs. For long-term reliability, follow the manufacturer's guidelines for periodic testing of the fail-safe function.
Compatibility & Integration
The V18345-1010421001 integrates with any 4...20 mA control system, including DCS and PLC platforms from ABB, Siemens, Rockwell, and Honeywell. The analog feedback module connects directly to analog input modules. The digital input and output follow NAMUR (DIN 19234) standards, ensuring compatibility with standard industrial sensors and actuators.
Selection Guide & Purchasing Advice
Before ordering, verify the actuator type (linear or rotary) and mounting requirements. Ensure the supply pressure range (1.4...6 bar) matches your plant air system. Confirm the required explosion protection level (ATEX Zone 1 or Zone 2). The V18345-1010421001 includes analog feedback; if digital feedback is needed, order the optional mechanical kit separately. Contact SpareTechPLC for current availability and lifecycle status.
Frequently Asked Questions
Q1: What is the input signal range for the V18345-1010421001?
A1: The input is 4...20 mA, two-wire, with a connector plug for LKS adapter.
Q2: Does this positioner include explosion protection?
A2: Yes, it has ATEX Ex II 2G EEx ib IIC T6 (intrinsically safe) and ATEX II 3G EEx n A II T6 (Zone 2) certifications.
Q3: What is the fail-safe action on power loss?
A3: The output is double acting and fail-safe, meaning it moves to a predefined safe position.
Q4: Can I get analog position feedback?
A4: Yes, it includes a plug-in module for analog position feedback with a 4...20 mA signal.
Q5: What is the weight of this positioner?
A5: The weight is 1.7 kg.
