TZIDC V18345-2010421001
TZIDC V18345-2010421001
TZIDC V18345-2010421001
TZIDC V18345-2010421001
TZIDC V18345-2010421001
TZIDC V18345-2010421001
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TZIDC V18345-2010421001

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ABB TZIDC V18345-2010421001 is a digital positioner that converts a 4–20 mA setpoint into double-acting pneumatic actuator control with fail-safe action.
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Technical specifications for TZIDC V18345-2010421001

  • Manufacturer:
    ABB
  • Part Number:
    TZIDC V18345-2010421001
  • Product Family:
    ABB Electrical
  • Product Type:
    TZIDC Double-Acting Digital Positioner with Analog Feedback
  • Stock:
    1
  • Housing and indicator:
    Varnished aluminum case with mechanical position indicator
  • Actuator mounting:
    Linear DIN/IEC 534/NAMUR or rotary VDI/VDE 3845
  • Setpoint input:
    4–20 mA, two-wire
  • Local communication:
    Connector for LCI adapter
  • Explosion-protection option:
    None
  • Electrical-failure response:
    Fail safe
  • Cable / air connections:
    1/2-14 NPT / 1/4-18 NPT
  • Position feedback:
    Plug-in 4–20 mA two-wire analog feedback module
  • Mechanical digital feedback:
    None
  • Design code:
    Standard
  • Supply-air range:
    1.4–6 bar (20–90 psi)
  • Actuator travel limit:
    Configurable within 0–100%, minimum span 20%
  • Travel-time extension:
    0–200 s, set separately by direction
  • Weight:
    3.748 lbs (1.7 kg)
  • Estimated shipping dimensions:
    17.2x11.5x11.2cm
  • Tariff Code:
    9032810000
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Signal Path Pneumatic Action Feedback Installation

Features:

  • Processes a 4–20 mA two-wire setpoint for closed-loop pneumatic actuator positioning.
  • Uses double-acting pneumatics with fail-safe behavior after an electrical supply loss.
  • Returns valve position through the installed two-wire 4–20 mA analog feedback module.
ABB TZIDC V18345-2010421001 combines the TZIDC controller, I/P converter and pneumatic amplifier in one positioner.

Its mechanical indicator follows the feedback shaft independently of the electrical position-return signal.

NPT cable and air connections define the external wiring and compressed-air paths for this configuration.

The ABB TZIDC V18345-2010421001 Double-Acting Digital Positioner may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB TZIDC V18345-2010421001 Digital Positioner Manuals,Datasheets,LinkImportant Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Electronic-to-Pneumatic Control Chain

  • Setpoint Input: The two-wire 4–20 mA input supplies the position setpoint to the electronic controller.
  • Position Comparison: The controller compares the requested value with the feedback-shaft position.
  • Pneumatic Conversion: The I/P stage converts the resulting correction into pneumatic pressure for the actuator.

Double-Acting Air Circuit

  • Output Paths: Separate pneumatic paths operate the two sides of a double-acting actuator.
  • Fail-Safe Response: The fail-safe arrangement defines the air-path response when electrical power disappears.
  • Air Supply: Supply air enters through the 1/4-18 NPT connection and is metered by the internal amplifier.

Mechanical and Analog Position Return

  • Local Indicator: The mechanical disc provides a local indication linked to the feedback shaft.
  • Analog Return: The installed analog module provides a separate two-wire 4–20 mA position-return circuit.
  • Circuit Separation: Feedback and setpoint paths remain separate so each can be checked during commissioning.

Actuator Mounting and Local Setup

  • Linear Mounting: The housing supports linear-actuator mounting to DIN/IEC 534/NAMUR arrangements.
  • Rotary Mounting: Rotary mounting follows the VDI/VDE 3845 mechanical interface.
  • Local Setup: The LCI adapter connection provides a local configuration path without replacing the setpoint wiring.
Description
ABB TZIDC V18345-2010421001 is a configurable digital positioner in the ABB TZIDC family for linear or rotary pneumatic actuators. This exact configuration combines the varnished aluminum housing and mechanical position indicator with double-acting, fail-safe pneumatic control.

The 4–20 mA two-wire setpoint entering ABB TZIDC V18345-2010421001 is processed by the position controller and converted through the I/P stage into the air-flow changes that move the actuator. When the requested position is reached, the pneumatic valve centers to hold the actuator while limiting steady air consumption.

For commissioning, ABB TZIDC V18345-2010421001 uses the local LCI adapter connection, while the installed analog-feedback module returns a separate 4–20 mA position signal. Its NPT electrical and pneumatic ports define the field connections, and the fail-safe output path determines the actuator response if electrical power is lost.
Alternative Names
V18345-2010421001 V183452010421001 V18345 2010421001 ABB V18345-2010421001 ABB TZIDC V18345-2010421001 TZIDC V18345 2010421001 TZIDC V18345-20-1-0-4-2-1-00-1 V18345-2010421001 TZIDC Digital Positioner
Technical notes
ABB TZIDC V18345-2010421001 combines double-acting fail-safe pneumatics, NPT connections and a 4–20 mA analog feedback module in the TZIDC housing.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How does ABB TZIDC V18345-2010421001 move a double-acting pneumatic actuator?
ABB TZIDC V18345-2010421001 compares the 4–20 mA setpoint with shaft feedback, then meters air through two output paths to correct actuator position.
Which feedback signals are available on ABB TZIDC V18345-2010421001?
A local mechanical indicator follows the shaft, while ABB TZIDC V18345-2010421001 also returns position through its installed two-wire 4–20 mA analog module.
What happens to ABB TZIDC V18345-2010421001 when electrical power is lost?
The fail-safe pneumatic configuration of ABB TZIDC V18345-2010421001 drives its outputs to the documented safety response instead of holding the last command electrically.
Where is ABB TZIDC V18345-2010421001 configured during commissioning?
Configuration can be performed locally through the LCI adapter connection on ABB TZIDC V18345-2010421001 while the normal setpoint circuit remains connected.
Which actuator interfaces accept ABB TZIDC V18345-2010421001?
ABB TZIDC V18345-2010421001 mounts to linear actuators using DIN/IEC 534/NAMUR arrangements or to rotary actuators using VDI/VDE 3845 hardware.
Why must the NPT connection code be checked for ABB TZIDC V18345-2010421001?
The exact ABB TZIDC V18345-2010421001 configuration uses 1/2-14 NPT cable entry and 1/4-18 NPT pneumatic ports, which determine the required glands and fittings.

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