Honeywell 900P02-0001 HC900 Series Power Supply Module
The Honeywell 900P02-0001, also cataloged as the 900P02-0001 Power Supply Module, operates as a dedicated hardware component for primary system power conversion within Honeywell HC900 Process & Safety Controller platforms. It steps down incoming wide-range alternating current (120/240 VAC) into regulated direct current bus voltages, supplying continuous 28 W power to the central processing unit and adjacent local I/O rack backplanes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900P02-0001 |
| Part Number | 900P02-0001 (900P020001) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 1.30 lbs (0.59 kg) |
| Dimensions | Standard HC900 power module slot chassis |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | Output capacity 28 W |
| Input Voltage | 120/240 VAC (auto-ranging / wide input selection) |
| Input Current Rating | 0.9 A at 240 VAC / 2.0 A at 120 VAC |
| Line Frequency Range | 47 to 63 Hz |
Backplane Power Distribution & Channel Isolation
The 900P02-0001 power module features high-efficiency switched-mode power conversion paired with secondary line filtering to deliver stable logic-level DC voltages across the HC900 rack backplane bus communication velocity and power networks. Integrated galvanic isolation protects sensitive CPU processing cores and I/O communication channels against high-voltage line spikes, brownout dips, and electrical noise coupled through AC mains supply lines. The unit maintains low thermal output profiles inside sealed controller cabinets, preventing localized heating of adjacent CPU and I/O cards.
Frequently Asked Questions
Q: What is the maximum load capacity available for backplane I/O expansion modules?
A: The module supplies up to 28 W total power across the local rack backplane. System designers must calculate the total combined current draw of the CPU and installed I/O cards to ensure total consumption does not exceed 28 W.
Q: How does the 900P02-0001 power supply respond to brief AC input voltage sags?
A: Built-in energy storage capacitors provide a hold-up time sufficient to ride through brief AC voltage sags and line cycle disruptions without dropping output regulation or causing CPU micro-resets.
Field Installation Guidelines
- AC Line Wiring & Fuse Protection: Wire incoming 120/240 VAC power through an external dedicated circuit breaker or fuse rated according to local electrical codes. Ensure input conductor wire gauges comply with standard panel wiring standards and are securely clamped into the terminal block to prevent high-resistance connections.
- Cabinet Thermal Clearance: Install the power supply in its designated left-hand rack slot within standard HC900 chassis racks. Maintain a minimum vertical clearance of 75 mm above and below the rack assembly to facilitate unobstructed natural convection cooling through the top chassis ventilation slots.
- Protective Earth Grounding: Connect a low-impedance ground conductor from the power module's dedicated protective earth (PE) terminal directly to the main enclosure earth bus bar. Proper grounding is necessary for internal surge protection circuits and EMI suppression filters to function safely.
Honeywell 900P02-0001 HC900 Series Power Supply Module
Honeywell 900P02-0001 HC900 Series Power Supply Module
The Honeywell 900P02-0001, also cataloged as the 900P02-0001 Power Supply Module, operates as a dedicated hardware component for primary system power conversion within Honeywell HC900 Process & Safety Controller platforms. It steps down incoming wide-range alternating current (120/240 VAC) into regulated direct current bus voltages, supplying continuous 28 W power to the central processing unit and adjacent local I/O rack backplanes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900P02-0001 |
| Part Number | 900P02-0001 (900P020001) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 1.30 lbs (0.59 kg) |
| Dimensions | Standard HC900 power module slot chassis |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | Output capacity 28 W |
| Input Voltage | 120/240 VAC (auto-ranging / wide input selection) |
| Input Current Rating | 0.9 A at 240 VAC / 2.0 A at 120 VAC |
| Line Frequency Range | 47 to 63 Hz |
Backplane Power Distribution & Channel Isolation
The 900P02-0001 power module features high-efficiency switched-mode power conversion paired with secondary line filtering to deliver stable logic-level DC voltages across the HC900 rack backplane bus communication velocity and power networks. Integrated galvanic isolation protects sensitive CPU processing cores and I/O communication channels against high-voltage line spikes, brownout dips, and electrical noise coupled through AC mains supply lines. The unit maintains low thermal output profiles inside sealed controller cabinets, preventing localized heating of adjacent CPU and I/O cards.
Frequently Asked Questions
Q: What is the maximum load capacity available for backplane I/O expansion modules?
A: The module supplies up to 28 W total power across the local rack backplane. System designers must calculate the total combined current draw of the CPU and installed I/O cards to ensure total consumption does not exceed 28 W.
Q: How does the 900P02-0001 power supply respond to brief AC input voltage sags?
A: Built-in energy storage capacitors provide a hold-up time sufficient to ride through brief AC voltage sags and line cycle disruptions without dropping output regulation or causing CPU micro-resets.
Field Installation Guidelines
- AC Line Wiring & Fuse Protection: Wire incoming 120/240 VAC power through an external dedicated circuit breaker or fuse rated according to local electrical codes. Ensure input conductor wire gauges comply with standard panel wiring standards and are securely clamped into the terminal block to prevent high-resistance connections.
- Cabinet Thermal Clearance: Install the power supply in its designated left-hand rack slot within standard HC900 chassis racks. Maintain a minimum vertical clearance of 75 mm above and below the rack assembly to facilitate unobstructed natural convection cooling through the top chassis ventilation slots.
- Protective Earth Grounding: Connect a low-impedance ground conductor from the power module's dedicated protective earth (PE) terminal directly to the main enclosure earth bus bar. Proper grounding is necessary for internal surge protection circuits and EMI suppression filters to function safely.
