ABB V18345-1010551001 TZIDC Series Positioner for Linear/Rotary Actuators

V18345-1010551001 ABB TZIDC-120 Intelligent Digital Valve Positioner

The V18345-1010551001 represents the pinnacle of ABB’s TZIDC-120 series, designed as an electronically configurable positioner with advanced communication capabilities.
This intelligent device optimizes the control of pneumatically actuated valves through a two-wire 4…20 mA signal.
Encased in a varnished aluminum housing with IP 65 protection, the V18345-1010551001 ensures high-fidelity performance in diverse industrial environments, supporting both linear and rotary actuator geometries.

Configuration Breakdown: Architecture & Suffix Logic

• V18345 (TZIDC-120 Base Platform)
  • └── 1 (Case/Mounting): Varnished Aluminium, IP 65 / NEMA 4X
    • ├── Linear Actuators: DIN/IEC 534 / NAMUR
    • └── Rotary Actuators: VDI/VDE 3845
  • └── 0 (Explosion Protection): Standard Non-Ex Design
  • └── 1 (Output / Communication): 4…20 mA Input with LKS Adapter Plug
  • └── 0 (Mechanical Kit): Without Digital Feedback Kit
  • └── 5 (Safe Position): Double Acting, Fail Freeze (Acts on electrical failure)
  • └── 5 (Connections): M20 x 1.5 Cable Thread; 1/4-18 NPT Air Pipe
  • └── 1 (Option Module): Plug-in Analog Feedback (4…20 mA signal range)
  • └── 0 (Additional Kit): Standard Configuration without mechanical kits
  • └── 0 (Design): Standard Varnish/Coding
  • └── 1 (Revision): Standard Production Series

Engineering Specifications & Signal Dynamics

• Input Requirements: Nominal Range 4…20 mA (Two-wire technology) with max 25 mA / 30 V DC limits.
• Impedance Profile: 435 Ohms @ 20 mA for non-explosion proof configurations.
• Pneumatic Output: Flexible range from 0…6 bar (0…90 psi) for single or double-acting actuators.
• Air Capacity: High-flow performance up to 13 kg/h (6.0 scfm) at 6 bar supply pressure.
• Digital Interface: Control voltage 24 V DC (12…30 V DC) with NAMUR digital output compliance.
• End Position Control: Configurable shut-off values for 0% (0…45%) and 100% (55…100%) stroke limits.

Oiltech Controls Limited’s Insight: Equipment & Diagnosis

• The V18345-1010551001 is engineered specifically for high-cycling control valves where precision is non-negotiable.
• “Fail Freeze” logic makes it indispensable in processes where the valve must maintain position during signal loss.
• The integrated LKS adapter port allows for rapid PC-based commissioning and real-time trend analysis.
• Best paired with double-acting pneumatic actuators following NAMUR or VDI/VDE 3845 mounting standards.
• Ideal for oil and gas refineries and chemical dosing stations where “Fail Closed” could cause hazardous imbalances.
• For immediate technical support, contact info@oiltechcontrols.com or WhatsApp +86 158 8020 0923.

Logistics & Service Excellence

• Warranty Status: Includes a full 12-month technical warranty on all functional electronic and pneumatic components.
• Dispatch Speed: Guaranteed professional dispatch within 24-28 hours for all confirmed in-stock orders.
• Shipping Carriers: Priority worldwide delivery available via FedEx, UPS, and DHL express networks.

Professional FAQ & Selection Guide

• What is the practical benefit of the “Fail Freeze” (code 5) option?
  Unlike fail-safe models, the V18345-1010551001 locks pneumatic pressure to hold the valve at its last position during signal failure.
• Does this unit require a separate power supply for the analog feedback?
  Yes, the plug-in analog position feedback module operates on a separate loop-powered circuit to ensure signal independence.
• How do I determine if I need the M20 x 1.5 or the NPT cable entry?
  This specific model utilizes M20 x 1.5 threads for cabling; ensure your conduit matches or use an appropriate adapter.
• Selection Guide: When should I choose TZIDC-120 over the standard TZIDC?
  Select the TZIDC-120 (V18345-1010551001) for digital network architectures requiring high-tier diagnostic reporting.
• Expert Tip: How do I handle split-range configurations?
  The V18345-1010551001 allows for easy split-range adjustment between 20% and 100% of the nominal range via the local interface.

Author: Oiltech Controls

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