New ABB PM866AK02 3BSE081637R1 AC 800M Controller Redundant Processor Unit

Product Details

Kit Contents (PM866AK02): 

• 2 x PM866A CPU units

• 2 x TP830 baseplates (115 mm width)

• 2 x TB807 ModuleBus terminators

• 1 x TK850 CEX-Bus expansion cable

• 1 x TK851 RCU-Link cable

• 2 x backup batteries (4943013-6)

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FAQs

Q1: What is included in the PM866AK02 kit?

The PM866AK02 is a complete redundant CPU kit containing: 2 x PM866A CPU units, 2 x TP830 baseplates, 2 x TB807 ModuleBus terminators, 1 x TK850 CEX-Bus expansion cable, 1 x TK851 RCU-Link cable, and 2 x backup batteries (one per CPU) .

Q2: What is the switchover time in redundant configuration?

The PM866AK02 achieves failover time of ≤ 10 ms in redundant configuration. This ensures seamless, bumpless transfer from primary to backup CPU without process interruption, which is critical for continuous processes like power generation and refining .

Q3: What communication interfaces does this controller provide?

The controller baseplate includes:

• 2 x RJ45 Ethernet ports (CN1, CN2) for Control Network connection (supports redundancy)

• 2 x RJ45 serial ports (COM3, COM4): COM3 is RS-232C with modem control signals; COM4 is isolated for configuration tool connection 

Q4: What is the difference between PM866AK02 and PM866K01?

The PM866AK02 is a redundant kit containing two CPU units for hot-standby configuration. The PM866K01 is a single CPU kit containing one CPU unit for non-redundant applications. For critical processes requiring high availability, the redundant AK02 version is recommended .

Q5: Can the PM866AK02 be used in safety applications?

The PM866AK02 is a standard redundant processor unit and is not certified for high-integrity safety functions (the "High Integrity" field is listed as "No") . For SIL-rated safety applications, ABB offers dedicated safety controllers within the AC 800M High Integrity family.