ABB PHARP Series Modules

Technical Dossier

Product Details And Specifications

ABB PHARP Series: Comprehensive Module Range and Technical Overview

The ABB PHARP series represents a core hardware platform deployed across global heavy industries including petrochemical refineries, nuclear power facilities, offshore platforms, and large-scale chemical processing plants. Built on ABB's Advant/Master distributed control system (DCS) architecture, PHARP modules are engineered for deterministic real-time control in safety-critical environments. Installations of this series span decades of continuous operation, making lifecycle support and spare parts availability a primary concern for plant engineers and maintenance teams worldwide. The PHARPS62200000 power supply module is one of the most frequently replaced components in this ecosystem due to its role as the backbone of backplane power distribution.

The Evolution of PHARP Architecture

The PHARP platform was introduced as part of ABB's Advant Controller 400 series ecosystem, designed to interface with the Master Bus 300 (MB300) communication backbone. Early revisions of the PHARP hardware used discrete analog power regulation circuits with limited diagnostic feedback. Subsequent hardware revisions introduced onboard status LEDs, improved EMI shielding, and enhanced thermal management to support 24/7 continuous operation in high-ambient-temperature environments such as refinery control rooms.

As ABB transitioned its DCS portfolio toward the System 800xA platform, the PHARP series entered a maintenance phase. Compatibility between PHARP modules and newer 800xA I/O subsystems is limited and typically requires gateway hardware. Plants running legacy Advant OCS or Master installations continue to rely on original PHARP hardware, as direct drop-in replacements from the current ABB catalog do not exist. This positions the PHARP series firmly in the long-term maintenance and lifecycle extension category, where sourcing verified surplus and refurbished units is the primary procurement strategy.

PHARP Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented PHARP series module range. Each unit is classified by functional role within the Advant/Master DCS architecture.

Power Supply Modules

• PHARPS62200000: 24 VDC backplane power supply module, primary rail distribution for PHARP subrack
• PHARPS62100000: Redundant power supply module, hot-swap capable for continuous process environments
• PHARPS62300000: High-capacity power supply variant for extended I/O subrack configurations

CPU / Controller Modules

• PHARPC62200000: Central processing unit module, MB300 bus master, real-time task execution
• PHARPC62100000: Redundant CPU module, supports bumpless transfer on primary CPU fault
• PHARPC62300000: Enhanced CPU with expanded memory for large application programs

Analog Input (AI) Modules

• PHARPA62200000: 8-channel analog input, 4–20 mA / 0–10 V, 12-bit resolution
• PHARPA62100000: 16-channel analog input module, differential input configuration
• PHARPA62300000: High-accuracy analog input, 16-bit resolution, HART protocol support

Digital Input (DI) Modules

• PHARPD62200000: 32-channel 24 VDC digital input module, sink/source configurable
• PHARPD62100000: 16-channel digital input, 120 VAC rated, for field device interfacing

Analog Output (AO) Modules

• PHARPO62200000: 8-channel analog output, 4–20 mA, loop-powered field device support
• PHARPO62100000: 4-channel analog output with HART pass-through capability

Digital Output (DO) Modules

• PHARPQ62200000: 16-channel 24 VDC digital output, solid-state relay, 0.5 A per channel
• PHARPQ62100000: 8-channel relay output module, 2 A per channel, NO/NC configurable

Communication / Fieldbus Adapter Modules

• PHARPM62200000: MB300 bus communication adapter, subrack-to-controller interface
• PHARPM62100000: PROFIBUS DP adapter module for third-party field device integration

Sourcing Hard-to-Find & Obsolete PHARP Parts

The PHARP series has been discontinued from ABB's active production catalog. Lead times through official ABB channels for legacy Advant hardware are typically 16–52 weeks, and in many cases units are listed as permanently unavailable. DriveKNMS maintains a dedicated inventory of PHARP series modules sourced from decommissioned plant assets, controlled surplus channels, and verified refurbishment programs.

For plant operators facing unplanned downtime caused by PHARP module failure, DriveKNMS provides emergency same-day quotation response. All units are cross-referenced against original ABB part numbers and hardware revision codes to ensure backplane and firmware compatibility before dispatch. Long-term maintenance contracts for PHARP spare parts buffer stock are available for facilities with multi-year operational commitments.

Quality Control for the PHARP Range

PHARP modules present specific testing challenges due to their integrated backplane bus interface and multi-rail power architecture. DriveKNMS applies the following verification procedures to all PHARP units prior to shipment:

• Backplane connector pin continuity and insulation resistance test (IEC 60512 reference)
• Power rail output voltage verification under rated load: +5 VDC, +24 VDC, and auxiliary rails
• MB300 bus communication handshake test using ABB-compatible test rack
• Thermal cycling burn-in: 72-hour continuous operation at 55°C ambient
• Firmware revision identification and documentation against ABB hardware compatibility matrix
• Visual inspection: capacitor condition, PCB trace integrity, connector wear assessment

Each unit ships with a DriveKNMS inspection certificate and 12-month warranty against functional failure under normal operating conditions.