Description
The ABB V18345-2010521001 TZIDC positioner moves valves with precision. It uses a 4-20 mA signal. This smart device fits linear or rotary actuators. The aluminum case includes a mechanical position indicator. It offers double acting output with fail freeze during power loss.
You can start automatic setup with one button. The LC display shows position, alarms, and temperature. For remote monitoring, use HART communication.
Need Versamax PLC parts? Check our collection.
For questions, contact us on WhatsApp: +86 158 8020 0923.
Technical Specifications
General
Brand: ABB
Model: V18345-2010521001
Series: TZIDC
Type: Electro-Pneumatic Positioner
Weight: 1.7 kg
Case & Mounting (Code 20)
Material: Aluminum, varnished
Includes mechanical position indicator
Mounts to linear actuators (DIN/IEC 534 / NAMUR)
Mounts to rotary actuators (VDI/VDE 3845)
Input & Communication (Code 1)
Input signal: 4 to 20 mA, two-wire
Connector plug for LKS adapter
HART communication ready
Explosion Protection (Code 0)
No explosion protection
Output & Safe Position (Code 5)
Output type: Double acting
Safe position on power failure: Fail freeze
Valve stays in last position when power drops
Connections (Code 2)
Cable entry thread: 1/2-14 NPT
Air pipe thread: 1/4-18 NPT
Analog Feedback (Code 1)
Plug-in module included
Signal range: 4 to 20 mA, two-wire
Mechanical Kit for Digital Feedback (Code 00)
Not included
Design (Code 1)
Standard varnish and coding
Monitoring Features
The TZIDC program checks these states continuously:
4-20 mA signal out of range
Position outside adjusted range
Positioning time-out (adjustable)
Position controller inactive
Counter limits exceeded (set in diagnosis phase)
During operation, the LC display shows:
Current position in %
Malfunctions, alarms, and messages (as codes)
Extended monitoring is available via HART.
Diagnosis Parameters
These values help you plan maintenance:
Number of valve movements
Total travel distance
You can set limits for these parameters. An alarm triggers when limits exceed. Use HART communication to view, set, and reset values.
Operator Panel
Four push-buttons under a protective cover allow:
Operational monitoring
Manual control
Configuration
Fully automatic commissioning
The cover prevents unauthorized access.
Single-Button Commissioning
Press one front button to start Autoadjust. The device automatically adapts parameters. No need to know setup details.
Linear actuators: zero position turns counter-clockwise
Rotary actuators: zero position turns clockwise
A customized Autoadjust is also available. Start it locally or via HART.
Display Information
The 2-line LC display updates in real time. Press buttons to see:
Up arrow: Current setpoint (mA)
Down arrow: Internal device temperature
Up + Down arrows: Current control deviation
Installation Overview
Mount directly to actuator shaft
Use correct bracket for linear or rotary type
Connect 1/4-18 NPT air supply (1.4-6 bar)
Wire 4-20 mA loop to two-wire terminal
Add LKS adapter for HART communication
Maintenance & Commissioning
No special tools required
One-button Autoadjust saves time
LC display shows faults without a PC
Diagnosis parameters prevent unexpected failures
Compatibility
Works with any 4-20 mA control system
HART compatible with standard masters
Fits most linear and rotary valve actuators
Analog feedback works with any PLC or DCS
Certifications
CE marked (per ABB)
No ATEX on this model (code 0)
IP65 enclosure (NEMA 4X equivalent)
Typical Applications
Valve position control in safe areas
Industrial automation without explosion risk
Water treatment plants
HVAC systems
General manufacturing
Diagnostic Capabilities
Detects signal loss or out-of-range conditions
Monitors position deviation and response time
Tracks valve wear via movement counts
Alerts before maintenance is urgent
Packaging & Warranty
Includes positioner, analog feedback module, basic manual
Mounting bracket sold separately
Warranty: 12 months from delivery
Shipping Carriers
FedEx
UPS
DHL
FAQ
What does “fail freeze” mean?
If electrical power fails, the valve stays in its last position. It does not move to 0% or 100%.
Can I add HART later?
Yes. The connector plug for LKS adapter is included. Add the FSK module to enable HART.
How do I know when to service the valve?
Check diagnosis parameters via HART. The device counts total travel and movements. Set your own alarm limits.
Does this model work in explosive areas?
No. Explosion protection code is 0. Choose a different TZIDC variant for ATEX zones.
The display shows an alarm code. What now?
Press the up arrow to see the setpoint. Press down arrow to see internal temperature. Compare codes with the manual.
My valve drifts slowly. How to fix?
Run the Autoadjust function again. The device will relearn friction and response.
Can I use this with a 24V PLC digital output?
The digital input is not available on this variant. Only analog 4-20 mA control.
What is the minimum air pressure?
1.4 bar (20 psi). Lower pressure causes unstable movement.
Selection Guide
Follow these steps to choose the right TZIDC.
Check your safety requirement
Need fail freeze: code 5 is correct
Need failsafe to 0% or 100%: choose code 4
Confirm explosion protection need
Safe area only: code 0 is fine
ATEX Zone 1 or 2: pick code 1 or higher
Decide on feedback
Need analog 4-20 mA: code 1 is included
Need digital feedback: choose different model
Match thread type
NPT threads: code 2 works
Metric threads: select other base model
Verify mounting type
Linear actuator: use standard bracket (not included)
Rotary actuator: same bracket type works
Common mistake: Ordering code 5 when you need failsafe to a position. Fail freeze holds position. It does not drive to open or closed.
Cost tip: This model (code 0 explosion protection) costs less than ATEX versions. Use it only in safe areas.
Contact
For inquiries: +86 158 8020 0923 (WhatsApp)
Copyright © 2026 PLCDCS HUB Limited. All rights reserved.
Original Source: https://plcdcshub.com/
Partners:
Powergear X Automation Limited
Oiltech Controls Limited
0.0 Average Rating Rated (0 Reviews)