The Logix 520MD Series digital positioner combines superior positioning and tuning functions with convenient setup and powerful diagnostic tools. The Logix 520MD positioner uses a multi-variable gain tuning algorithm which allows the positioner to make large step changes with minimal overshoot while achieving the resolution to respond to very small step changes. The Auto-tune procedure cycles the actuator to produce a measured response and selects gain values that provide appropriate actuator performance. The Auto-tune function includes a gain modifier selector that can be used to increase or decrease the calculated gain in order to achieve optimal performance. Easy DIP switch configuration for tuning mode and other common settings. For custom settings, tuning sets can be modified with a handheld or with ValveSight software, to accommodate a wide range of actuator sizes and types.
Additional information
| Type | Digital |
|---|---|
| Protocols | HART |
| Diagnostics | Basic, Advanced, Pro |
| Actuator Action | Linear, Rotary |
| Positioner Action | Single (Three-Way), Double (Four-Way) |
| Enclosure | Aluminum |
| Local Feedback | None, Flat, Dome |
| Classification | General Purpose, Non-Incendive, Intrinsically Safe |
| Supply Medium | Air |
| Output Capacity | 1.41 SCFM at 22 psi, 4.12 SCFM at 87 psi |
| Air Consumption | 0.047 SCFM at 22 psi, 0.071 SCFM at 87 psi |
| Temperature Range | -40°F to 185°F (-40°C to 85°C) |
Features & Benefits
- The Logix 500MD allows for fast commissioning, accurate and reliable control, and powerful diagnostic features that provide easy ways to determine when maintenance is required
- Limit switch kits are available to provide you with an independent verification of the position of the feedback shaft
- Visual indication of position is available through flat and dome option integral to the positioner cover
- Users can now obtain a new level of detailed real time diagnostic information with ValveSight DTM software
- The rugged, modular design provides protection from dirt and water ingress (IP 65/NEMA 4X), impact and vibration
- One-button setup automatically configures the zero, span and gain of the positioner for most valves in less than 60 seconds
- On-board pressure sensors that enable operators to identify and assess the severity of developing problems so action can be taken before a critical event
- Broad application versatility with industry-leading communication technologies, including analog or HART
Certificates
| Flowserve-Logix-TR-CU-EAC-(GOST)-Certificate |
Flowserve Logix TR CU EAC (GOST) Certificate.pdf |
