ABB V18345-1020521001 TZIDC Electro-Pneumatic Positioner

The ABB V18345-1020521001 is a TZIDC electro-pneumatic positioner. This device is intelligent and configurable for precise valve control. You can mount it on linear actuators per DIN/IEC 534 standards. It also fits rotary actuators according to VDI/VDE 3845. The unit comes in a varnished aluminum case with IP65 (NEMA 4X) protection.

Technical Specifications of the V18345-1020521001

The ABB V18345-1020521001 uses a 4-20 mA input with two-wire technology. It includes an FSK module for HART communication. The housing is made of varnished aluminum. The protection rating is IP65 (NEMA 4X) for harsh environments. The design uses standard varnish and coding.

Output and Safe Position

The output is double acting with fail freeze. In an electrical power failure, the actuator freezes in position. The cable connection uses 1/2-14 NPT thread. The air pipe connection uses 1/4-18 NPT thread. The ABB V18345-1020521001 includes a plug-in analog position feedback module. The feedback signal range is 4 to 20 mA.

Output Signal Configuration

The output pressure responds to the input signal directly. An increasing signal from 0 to 100% increases output pressure OUT 1. A decreasing signal from 0 to 100% decreases output pressure OUT 1. The action can be direct or reverse. Direct action means 4-20 mA signal equals 0-100% position. Reverse action means 20-4 mA signal equals 0-100% position.

Characteristic Curve Options

The ABB V18345-1020521001 offers multiple characteristic curves. Linear curve provides proportional response. Equal percentage curves include 1:25, 1:50, 25:1, or 50:1. You can also configure freely with 20 reference points. This flexibility suits various valve types and applications.

Accuracy and Performance

The characteristic deviation is ≤ 0.5%. The tolerance band adjusts from 0.3 to 10%. The dead band adjusts from 0.1 to 10%. The A/D conversion resolution exceeds 4000 steps. The sample rate is 20 milliseconds for fast response.

Environmental Influences

The influence of ambient temperature is ≤ 0.5% per 10°C change. The influence of vibration is ≤ ±1% up to 10g and 80 Hz. The ABB V18345-1020521001 meets DIN/IEC 68-3-3 Class III seismic requirements. This covers strong and strongest earthquakes. Mounting orientation has no effect on performance.

Installation Guidelines for the V18345-1020521001

Mount the ABB V18345-1020521001 on linear or rotary actuators. Use clean, dry instrument air for supply. Configure the characteristic curve using the operator panel. Set direct or reverse action based on your application. Adjust dead band and tolerance band for optimal control. Connect HART communication through the FSK module.

Package Contents

• One (1) ABB V18345-1020521001 TZIDC electro-pneumatic positioner

• One (1) plug-in analog position feedback module (4-20 mA)

• Mounting kit and configuration manual

Common FAQs for the V18345-1020521001

1. Does the V18345-1020521001 support HART communication?
Yes, the ABB V18345-1020521001 includes an FSK module for HART communication. This allows digital configuration and diagnostics.

2. What is the fail-safe mode on this positioner?
The ABB V18345-1020521001 has a double acting fail freeze function. The actuator stays in its last position when electrical power fails.

3. What characteristic curves are available?
The ABB V18345-1020521001 offers linear and equal percentage curves. Equal percentage options include 1:25, 1:50, 25:1, or 50:1. A free curve with 20 points is also available.

4. Does mounting orientation affect performance?
No, mounting orientation has no effect on the ABB V18345-1020521001. You can install it in any position without recalibration.

5. What is the vibration tolerance of this positioner?
The ABB V18345-1020521001 handles vibration up to 10g and 80 Hz. The influence on performance is ≤ ±1%.

Why Choose the ABB V18345-1020521001?

This TZIDC electro-pneumatic positioner delivers precise double acting valve control. The HART communication enables digital integration with control systems. High resolution and fast sampling provide excellent response. The rugged IP65 case withstands harsh industrial conditions. Order the ABB V18345-1020521001 today for reliable valve positioning with HART.