Product Overview

The V18345-2010521001 belongs to the TZIDC Series. Its product type is an Electro-Pneumatic Positioner. The product classification is Other Series. The current price for this item is ¥4,980 RMB, and the product gross weight is 1.70 kg.

ABB designed this positioner for precise valve control in industrial applications. The case and mounting option 20 features an aluminum varnished case with a mechanical position indicator. This configuration mounts to linear actuators according to DIN/IEC 534/NAMUR standards. Additionally, it mounts to rotary actuators according to VDI/VDE 3845 standards. The input and communication port option 1 provides a 4-20 mA two-wire input with a connector plug for LKS adapter. Consequently, this TZIDC Positioner delivers reliable electro-pneumatic control for a wide range of valve types.

Technical Specifications

Explosion Protection and Output Configuration

The explosion protection option 0 indicates that this unit has no explosion protection certification. The output and safe position option 5 provides double acting, fail freeze functionality. When electrical power fails, the positioner freezes the valve in its last position. Therefore, this configuration suits applications where holding position during power loss is critical.

Connections

The connections option 2 specifies a cable entry thread of 1/2-14 NPT and an air pipe thread of 1/4-18 NPT. These NPT threads suit North American installations. For other regional standards, select different connection options accordingly.

Feedback Modules

The option for analog or digital position feedback 1 includes a plug-in module for analog position feedback with signal range 4-20 mA, two-wire. The optional mechanical kit for digital position feedback 00 means no such kit is included. Thus, this V18345-2010521001 provides analog feedback but no digital feedback capability.

Design and Varnish

The design option 1 represents the standard varnish and coding configuration. The case uses aluminium, varnished for corrosion resistance. The mechanical position indicator allows local valve position viewing without needing a power supply.

Monitoring Parameters

The TZIDC operating program implements various functions for permanent operational monitoring. The positioner detects and indicates the following states. First, the 4-20 mA signal out of range condition triggers an alert. Second, it detects position out of the adjusted range . Third, it monitors positioning time-out with adjustable time parameters. Fourth, it indicates position controller inactive status. Fifth, it notifies users when counter limits exceed settable thresholds during the diagnosis phase. During automatic commissioning, the integrated LC display continuously shows the current state.

Display and Operator Panel

During operation, the LC display shows the most important process variables. These include current position (in %) and malfunctions, alarms, and messages (as code) . Users can access extended monitoring parameters via HART communication. The TZIDC positioner operator panel features four push-buttons. This panel allows for operational monitoring, manual control, configuration, and fully automatic commissioning. A cover protects the operator panel, preventing unauthorized access to the operating elements.

Diagnosis Parameters

The TZIDC program diagnosis parameters inform operators about valve operating conditions. From this information, operators can derive which maintenance works they need and when. Additionally, users can define limit values for these parameters. When values exceed these limits, the system reports an alarm. For example, the positioner determines the number of movements performed by the valve and the total travel. Users can call up, set, and reset diagnosis parameters and limit values via HART communication using the configuration program.

Single-Button Commissioning

Commissioning the TZIDC positioner is especially easy. You can start the standard Autoadjust function for automatic device parameter adaptation by simply pressing a single front panel button. This works without knowing any parameterization details. The displayed zero position automatically adapts based on the selected actuator type (linear or rotary). For linear actuators, zero position turns counterclockwise. For rotary actuators, zero position turns clockwise. Furthermore, a customized Autoadjust function is also available. You can start this function locally by pressing the respective push-buttons or remotely via HART communication.

Installation Guide

Follow these steps to install your V18345-2010521001 correctly.

1. Mount the Positioner: Attach the V18345-2010521001 to your linear or rotary actuator. Use the appropriate mounting bracket per DIN/IEC 534 or VDI/VDE 3845.

2. Connect Air Supply: Provide clean, dry instrument air to the 1/4-18 NPT port. Ensure supply pressure meets actuator requirements.

3. Connect Output Air Lines: Attach air pipes to the double acting output ports. Route them to your actuator's open and close connections.

4. Wire the Input: Connect the 4-20 mA control signal to the two-wire input terminals. Observe correct polarity for proper operation.

5. Wire the Feedback: Connect the analog position feedback output (4-20 mA) to your monitoring system. This provides real-time valve position data.

6. Apply Power: The positioner derives power from the 4-20 mA loop. No separate power supply is needed.

7. Commission the Unit: Press the single button to start Autoadjust. Wait for the automatic calibration to complete.

8. Verify Operation: Check the LC display for correct position reading. Test the response to setpoint changes.

Package List

• 1 x V18345-2010521001 TZIDC Electro-Pneumatic Positioner

• 1 x Mechanical position indicator (pre-installed in housing)

• 1 x Plug-in analog feedback module (4-20 mA, pre-installed)

• 1 x LKS adapter connector plug

• 1 x Installation and commissioning manual

Frequently Asked Questions (FAQ)

1. What does "fail freeze" mean for this positioner?
When electrical power fails, the fail freeze function holds the valve in its last position. The positioner does not drive the valve to open or closed. Therefore, this suits applications where sudden valve movement could create hazards.

2. Can I use this V18345-2010521001 with a spring-return actuator?
No, this version is double acting, requiring two air connections. For spring-return (single acting) actuators, select a different output option. This unit works only with double acting actuators.

3. How do I start automatic commissioning?
Press the single front panel button. The Autoadjust function will run automatically. No parameter details need to be entered. Meanwhile, the LC display will show progress during commissioning.

4. What information can I get from the LC display?
During normal operation, the display shows current position (%) and any active alarms or messages. By pressing arrow buttons, you can also view the current setpoint (mA), internal device temperature, and control deviation. Thus, you get complete operational visibility.

5. Does this positioner support HART communication?
Yes, the V18345-2010521001 supports HART communication. You can access extended monitoring parameters, diagnosis data, and configuration settings via HART using a configuration program.