ABB V18345-1020521001 Valve Positioner TZIDC Electro-Pneumatic

ABB V18345-1020521001 TZIDC Electro-Pneumatic Valve Positioner

Technical Specifications

• Brand: ABB
• Model: V18345-1020521001
• Series: TZIDC
• Product Type: Electro-Pneumatic Positioner
• Case: Aluminium, varnished, IP 65 (NEMA 4X)
• Mounting: Linear actuators per DIN/IEC 534 / NAMUR; rotary actuators per VDI/VDE 3845
• Input / Communication: 4...20 mA, two-wire, FSK module for HART
• Explosion Protection: Without
• Output / Safe Position: Double acting, fail freeze
• Connections: Cable thread 1/2-14 NPT; air pipe thread 1/4-18 NPT
• Option Module: Plug-in analog position feedback, signal range 4…20 mA
• Mechanical Kit: Without
• Design: Standard varnish / coding
• Weight: 1.7 kg

Performance and Accuracy

• Output 1: Increasing signal 0...100 % raises output pressure OUT 1; decreasing signal 0...100 % lowers output pressure OUT 1
• Action (Signal): Direct means 4...20 mA equals position 0...100 %; Reverse means 20...4 mA equals position 0...100 %
• Characteristic Curve: Linear, equal percentage 1:25 or 1:50 or 25:1 or 50:1, plus freely configurable with 20 reference points
• Characteristic Deviation: ≤ 0.5 %
• Tolerance Band: 0.3...10 %, adjustable
• Dead Band: 0.1...10 %, adjustable
• Resolution (A/D Conversion): > 4000 steps
• Sample Rate: 20 msec

Environmental Resistance and Stability

• Ambient Temperature Influence: ≤ 0.5 % for every 10 °C change
• Vibration Influence: ≤ ± 1 % up to 10 g and 80 Hz
• Seismic Requirements: Meets DIN/IEC 68-3-3 Class III for strong and strongest earthquakes
• Mounting Orientation Influence: No effect

Installation Guide

• Verify the actuator type before mounting. Use DIN/IEC 534 or NAMUR for linear actuators.
• Use VDI/VDE 3845 for rotary actuators. Confirm the mounting kit matches your actuator interface.
• Connect the air pipe to the 1/4-18 NPT port. Keep supply air clean and dry.
• Connect the cable to the 1/2-14 NPT thread. Use shielded cable for the 4...20 mA two-wire loop.
• Check the fail-freeze output setting before pressurizing the system.
• Adjust the tolerance band and dead band after calibration. The dead band range is 0.1...10 %.
• Confirm the analog feedback module wiring if you use the 4…20 mA position signal.

Package List

• 1 × ABB V18345-1020521001 TZIDC Electro-Pneumatic Positioner
• 1 × Analog position feedback plug-in module
• 1 × Mounting hardware set for linear or rotary actuator
• 1 × Quick installation guide

Shipping and Support

• We ship with FedEx, UPS, and DHL. Choose the carrier that fits your delivery schedule.
• We keep this model in stock and dispatch within 5 days after order confirmation.
• We accept returns within 30 days. The unit must remain in its original condition.

FAQ

• Is the ABB V18345-1020521001 brand new and original?
  Yes. We supply brand new original units.
• Does this positioner support HART communication?
  Yes. The two-wire 4...20 mA input includes an FSK module for HART.
• What is the safe position when power fails?
  This version uses a double-acting output with fail freeze.
• Can I mount it on a rotary actuator?
  Yes. It follows VDI/VDE 3845 for rotary actuators.
• What is the analog feedback signal range?
  The plug-in module provides 4…20 mA analog position feedback.
• How many resolution steps does the A/D conversion offer?
  It offers more than 4000 steps.
• What is the sample rate?
  The sample rate is 20 msec.
• Does mounting orientation affect performance?
  No. Mounting orientation has no effect on this positioner.
• What are the air and cable connection threads?
  Air pipe thread is 1/4-18 NPT. Cable thread is 1/2-14 NPT.
• How much does the unit weigh?
  The unit weighs 1.7 kg.

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