Honeywell TC-PPD011 Battery Extension Module

The Honeywell TC-PPD011, also cataloged as the TC-PPD011 Battery Extension Modules, operates as a dedicated hardware component for volatile memory backup power retention within Honeywell Experion PKS C200/C300 controller chassis platforms.

Hardware Specifications

Auxiliary Power Hold-up & Memory Retention

The TC-PPD011 module provides dedicated auxiliary power maintenance for volatile controller memory arrays during primary DC power outages. Operating on the internal backplane bus, the module routes continuous low-voltage backup current to preserve system configuration tables, real-time database registers, and diagnostic logs. Galvanic isolation across internal supply rails prevents external noise coupling and maintains loop power integrity without interfering with adjacent 4-20 mA HART loop protocol I/O operations across the chassis backplane.

Frequently Asked Questions

Q: Does replacing a TC-PPD011 battery extension module require powering down the controller chassis?

A: Module replacement under active backplane power (hot-swapping) is permitted provided the primary power supply remains energized and local cabinet hazardous area procedures are followed.

Q: How is memory integrity verified after a main power interruption using the TC-PPD011?

A: Upon main power restoration, the controller boot routine performs parity checks on volatile RAM backed up by the TC-PPD011 before transitioning to active execution status.

Q: What physical installation steps are required for the TC-PPD011 module?

A: The module inserts directly into a designated backplane slot within the Experion rack and locks securely via top and bottom mechanical retention latches.

Field Installation Guidelines

1. Slide the TC-PPD011 module into its designated rack slot until the upper and lower locking levers click into place.
2. Ensure the chassis backplane earth ground strap is securely landed on the cabinet main ground bar prior to energizing the rack.
3. Verify that the battery module terminal connectors are clean, fully seated, and free of physical contamination or oxidation.
4. Maintain proper ambient cabinet airflow to ensure operating temperatures remain within the 0 to +60 deg C range.