Product Details
The Honeywell 900K01-0201, also cataloged as the 900K01 Battery Module Assembly, operates as a dedicated hardware component for backup power delivery to volatile memory components within Honeywell ControlEdge HC900 controller platforms. Operating at a 5 VDC backplane logic level with a maximum current draw of 17 mA, the module installs directly into the controller slot or dedicated power housing. It maintains real-time clock (RTC) synchronization and preserves dynamic RAM registers during main system power outages.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900K01-0201 |
| Brand | Honeywell |
| Origin | USA |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 5 VDC, 17 mA Max |
| Module Type | Memory Backup Battery Module / Assembly |
| System Compatibility | Honeywell ControlEdge HC900 Series |
| Voltage Rating | 5 VDC logic backplane interface |
| Max Current Draw | 17 mA |
| Mounting Type | Rack / Chassis slot insertion |
Process Control Integration & DCS Field Interfacing
The Honeywell 900K01-0201 ensures continuous retention of user program logic, force tables, and historical process trends stored in volatile controller memory when external AC/DC input power is removed. By preventing memory corruption during power cycles, the module supports seamless process restarts without requiring cold-boot initialization or logic reloading from supervisory DCS control networks. This memory retention maintains system readiness for analog interface cards managing 4-20 mA HART loop protocol field instruments.
Frequently Asked Questions
Q: What is the primary electrical requirement for the 900K01-0201 module backplane interface?
A: The module operates on a 5 VDC logic bus rail and draws a maximum current of 17 mA during active backplane operation.
Q: What happens to the HC900 controller if the 900K01-0201 backup assembly is depleted during a power outage?
A: If depleted during an extended power outage, un-backed volatile RAM registers may reset, requiring system configuration and clock settings to be restored from non-volatile flash memory upon power restoration.
Field Installation Guidelines
- Ensure the controller slot or battery retention housing is free of debris before inserting the 900K01-0201 assembly.
- Handle the module using anti-static wrist straps to prevent electrostatic discharge (ESD) damage to sensitive backplane contacts.
- Verify correct keying and mechanical orientation prior to pushing the module into the backplane connector.
- Maintain ambient panel operating temperatures between 0 and +60 deg C to optimize backup cell longevity and prevent accelerated self-discharge.
Additional Information
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