ABB PM665 (3BDS005799R1) PowerPC Processor Module with Redundancy Voter, Advant Controller 160 High-Performance CPU

Description

ABB PM665 (3BDS005799R1) PowerPC Processor Module with Redundancy Voter, Advant Controller 160 High-Performance CPU

Product Description

The PM665, part number 3BDS005799R1, is a high-performance rack processor unit for ABB Advant Controller 160 (AC160) DCS, built on PowerPC architecture. It integrates an onboard redundancy voter, dedicated high-speed inter-module link and high-speed pulse/speed input channels for rotating machinery supervision. It executes complex regulatory PID control, sequence logic, interlock handling and advanced calculation tasks, supporting Advant Fieldbus 100, PROFIBUS-DP and serial communication protocols. Designed for high-availability power, pulp & paper and chemical processes, it supports multi-processor rack configurations and redundant CPU pair operation. This is an end-of-life critical spare for plant lifecycle extension and obsolescence replacement of AC160 systems.

Technical Parameters

Recommended Related Models (8 units)

1. PM644 3BSE014664R0001: Lower-performance AC160 processor (PROFIBUS-DP master)
2. SA610: AC160 rack power supply module
3. DI651: digital input module
4. DO651: digital output module
5. AI650: 4–20mA analog input card
6. AO650: Analog output control module
7. CI627: Serial communication interface for rack
8. Advant Fieldbus 100 Terminator: Bus termination resistor for AF100 network

ABB PM665 3BDS005799R1

Compatibility & Installation Traps

Compatibility

• Primary host system: ABB Advant Controller 160 () basic subrack
• Field networks: Advant Fieldbus 100, PROFIBUS-DP; supports S600 local I/O and S800 remote I/O
• Note: PM665 is not pin-to-pin compatible with PM644; it uses a different rack slot assignment and redundancy voter hardware. It cannot be used in AC800M or other ABB controller families.

Critical Installation Traps

1. Firmware & Base Software Matching: The pre-installed base software version must match the rack project configuration. Mismatched firmware will break redundancy voting, high-speed link communication and speed-input acquisition.
2. Redundancy Sync Requirements: For dual redundant pairs, both PM665 modules must carry identical firmware and application. Version mismatch causes loss of hot standby switchover and fault voting.
3. Speed Input Signal Integrity: The high-speed pulse channel is sensitive to noise. Poorly shielded tachometer wiring creates jitter and false speed trips for turbines or motors.
4. Battery Backup Handling: The memory backup battery preserves application and process values. Removing the battery while powered or ESD exposure can erase the control program.
5. ESD Sensitivity: PowerPC core, FPGA voter and high-speed transceivers are ESD-sensitive. All replacement work must be performed on a grounded ESD workstation.
6. Backplane Connector and Slot Rules: PM665 must be fitted in designated CPU slots. Forcing into I/O slots or bending edge pins results in intermittent redundancy or link faults that are hard to replicate on bench tests.
7. Bus Segregation for AF100 / PROFIBUS: Shielded fieldbus cables must be routed separately from high-power drive cables. Common-mode noise triggers slave timeouts and loss of redundancy sync.
8. Hot Swap Limitation: racks do not support hot swap of the main CPU in most critical redundant configurations. Live extraction may cause full control trip.

Standard Operating Procedure (SOP)

1. Pre-installation inspection: Inspect module housing, front LEDs and edge connector for corrosion or mechanical damage. Confirm full part number 3BDS005799R1 against the site spare register.
2. Application backup: Upload the control program, I/O mapping, AF100 / PROFIBUS parameters and speed-input scaling from the existing to the engineering station.
3. System preparation: Place all critical control and turbine speed loops into manual/hold mode and obtain the plant isolation permit.
4. Energy isolation: De-energize the rack 24VDC supply and apply lockout/tagout. Allow internal capacitors to discharge before removing the module.
5. Mechanical replacement: Operate rack ejector latches and extract the faulty CPU. Insert the replacement fully into its assigned slot and close latches to seat the backplane connector.
6. Power-up and self-test: Restore 24VDC rack power. Observe front-panel status LEDs. Run memory, watchdog and redundancy voter diagnostics via the engineering tool.
7. Network and control validation: Download the saved application and bus configuration. Verify AF100, PROFIBUS-DP slaves, local S600 / remote S800 I/O and tachometer speed input. Test redundant switchover if applicable.
8. Process qualification: Gradually return loops to automatic mode. Monitor bus load, scan time, speed measurement stability and alarm behaviour through thermal and load transients before releasing to full plant operation.
9. Decommissioning: Pack the defective CPU in anti-static shielding bags, label with fault symptoms for failure analysis. Handle the backup battery with ESD precautions.

ABB PM665 3BDS005799R1

Application Scenarios

• High-performance real-time control for ABB Advant Controller 160 DCS racks
• Redundant control with hardware voting for critical boiler, turbine and balance-of-plant loops
• High-speed tachometer / pulse speed acquisition for rotating machinery protection
• Advant Fieldbus 100 and PROFIBUS-DP master communication with distributed S800 I/O and drives
• Complex sequence control, advanced regulatory calculations and alarm time-stamping
• Preventive maintenance and spare stocking for obsolete DCS lifecycle extension
• Troubleshooting of redundancy voting faults, speed signal jitter, bus sync loss and watchdog resets
• Power, pulp and chemical plant DCS obsolescence retrofit and migration projects
• Multi-processor rack commissioning and high-speed inter-processor link validation

Supporting Components

• ESD wrist strap, anti-static shielding bags and conductive work mat
• Rack ejector levers and torque screwdriver set
• SA610 rack power supply
• AF100 / PROFIBUS-DP shielded twisted-pair cables and certified terminators
• ABB Advant Controller 160 engineering software and communication adapter
• rack fan and filter maintenance kit
• Spare backplane and edge contact repair kit
• Replacement memory backup battery for