Honeywell TK-PRR021 51309288-375 Redundancy Module

The Honeywell TK-PRR021 (51309288-375) is a specialized Redundancy Module (RM) engineered for the Experion PKS Series-A control architecture. This module facilitates high-availability configurations by enabling dual C200 controller processors to operate in a synchronized, redundant state. By managing the critical communication and synchronization between the primary and standby units, the TK-PRR021 ensures seamless, bumpless transfer of control functions during a fault, preventing process downtime.

Features

• Designed for C200 controller redundancy support within Series-A chassis systems.
• Occupies two dedicated chassis slots for robust physical integration.
• Conformal coated design for enhanced durability in harsh or corrosive industrial environments.
• Certified for Class I, Division 2 hazardous locations (Groups A, B, C, and D).
• Supports wide-ranging power inputs with specific ratings for 1.2 VDC, 3.3 VDC, 5 VDC, and 24 VDC rails.
• Integrated relay contacts (100 mA at 30 VDC) for reliable redundancy status signaling.

Applications

• Oil and Gas: Critical for upstream telemetry and downstream refining process control.
• Chemical Processing: Supports reactor safety and batch processing continuity.
• Power and Utilities: Ideal for turbine control and plant-wide monitoring systems.
• Water and Wastewater: Manages data acquisition for pump stations and flow control.
• Pulp and Paper: Provides reliable control for boiler systems and automated material handling.

Technical Specifications

Installation Guidelines

• Power Down: Always de-energize the chassis power supply before inserting or removing modules to prevent electrical transients.
• Alignment: Carefully align the module circuit board with the top and bottom guides of the designated chassis slots.
• Seating: Slide the module steadily until the rear connectors firmly engage with the backplane.
• Securing: Engage the upper and lower retaining tabs to lock the module into the chassis frame, ensuring resistance against vibration.
• Handling: Use standard ESD protection measures when handling the module to prevent damage to internal circuitry.

FAQ

What does the TK prefix signify?

The TK prefix denotes that this specific module features conformal coating, providing superior protection against humidity, dust, and corrosive gases found in demanding industrial settings.

What is the primary role of this module?

The TK-PRR021 acts as the synchronization bridge between two C200 controllers, ensuring that the standby controller remains updated with real-time process data to allow for an instantaneous, bumpless transition if the primary controller fails.

Is this module suitable for hazardous environments?

Yes, it is rated for Class I, Division 2, Groups A, B, C, and D locations, making it suitable for volatile industrial atmospheres.