Overview

The PT2060/91-A0-H serves as the head-end or central interface of the ProvibTech monitoring rack. It consolidates three critical roles:

• System Power Interface: Converts wide-range AC input (90–264 VAC) into regulated +24 VDC to power all rack modules via the backplane (/91 code).

• Digital Communication Interface: Provides RS-485 (Modbus RTU) output (A0) for external control system integration.

• High-Resolution Data Management: The -H feature ensures precise digital processing of all rack channel data, essential for advanced diagnostics.

This module is indispensable for clean power delivery and reliable data collection in rack-based monitoring systems.

Technical Data

Typical Applications

The PT2060/91-A0-H acts as the primary connection point for rack-based machinery protection and condition monitoring systems, commonly deployed in:

• Oil & gas, petrochemical, and power generation control cabinets

• Monitoring large turbine-compressor trains with multiple vibration and thrust channels

• Systems requiring high-resolution digital data for advanced diagnostics and prognostics

The module provides a reliable foundation for centralized machine data management.

FAQ

Q1: What is the main difference between /91 and /90 modules?
A: Both are power supply modules, but /91 includes the head-end system interface functionality (Modbus RTU), combining power and communication in one module.

Q2: What benefit does the High-Resolution (-H) feature provide?
A: Ensures that digital data from all monitoring modules is sampled and transmitted with high precision, enabling accurate trending and diagnostics.

Q3: Does this module require a separate power connection?
A: Yes, it accepts AC input (90–264 VAC) via its front terminal block and distributes DC power internally through the backplane.

Q4: Can the communication output support protocols other than Modbus RTU?
A: The standard A0 output is fixed as RS-485 (Modbus RTU). Other protocols may be available on differently coded PT2060 modules.