Honeywell 30735863-001 Switching Card

Product Overview

The Honeywell 30735863‑001 is a high-performance 16-relay switching card designed for Reserve Controller Directors (RCDs) in TDC 2000 and TDC 3000 distributed control systems. It enables seamless switchover between primary and backup controllers, maintaining uninterrupted operation in critical industrial processes. Moreover, its robust design ensures reliable performance in harsh environments, making it ideal for oil & gas, chemical, and power generation facilities.

Key Features & Benefits

• Provides automatic redundancy by switching control signals from failed primary controllers to reserve controllers.

• Contains 16 relays for precise process variable and output signal management.

• Includes a toggle switch to enable or disable backup and an LED indicator for real-time status monitoring.

• Supports up to two primary controllers per card, with optional expansion using the 30735863‑002 12-relay card.

• Durable PCB construction withstands industrial conditions while ensuring long-term reliability.

• Simplifies system maintenance and testing through integrated test relays that connect reserve outputs to inputs.

Technical Specifications

• Manufacturer: Honeywell

• Model Number: 30735863‑001

• Module Type: Switching Card (Relay Module)

• Relay Count: 16 relays (for PV and output switching)

• System Compatibility: TDC 2000 / TDC 3000 DCS, RCDs

• Function: Switches between primary and reserve controllers during failures

• Expansion: Supports up to 2 primary controllers; expandable with 30735863‑002

• Dimensions: 12.7 × 10.16 × 1.27 cm

• Weight: 1.00 lbs

Typical Applications

• Redundancy management in process control systems to prevent downtime.

• Switching control between primary and backup controllers in chemical plants.

• Ensuring continuous operation in oil & gas production facilities.

• Integration with RCDs in power generation and utility automation systems.

FAQ

Q1: Can this card support more than two primary controllers?
A1: Yes, by adding optional expansion cards like the Honeywell 30735863‑002, additional controllers can be supported.

Q2: How does the LED indicator function?
A2: The LED lights up to show when the backup controller is active, providing immediate status feedback.

Q3: Is the module compatible with both TDC 2000 and TDC 3000 systems?
A3: Yes, it works seamlessly with both TDC 2000 and TDC 3000 RCD chassis.

Q4: Can I test the backup controller without interrupting the primary system?
A4: Yes, the integrated test relays allow connection of reserve outputs to inputs for safe testing.