ABB PM861AK02 AC 800M Redundant Processor Unit Kit
The ABB PM861AK02, also cataloged as the 3BSE018160R1 Redundant Processor Unit Kit, operates as a dedicated hardware component for centralized redundant control and deterministic task execution within ABB AC 800M (System 800xA) controller environments.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM861AK02 |
| Brand | ABB |
| Origin | China |
| Weight | 2.9 kg net / 4.0 kg shipping |
| Dimensions | 186 mm x 119 mm x 135 mm |
| Operating Temp | +5 deg C to +55 deg C |
| Power Consumption | 250 mA typ / 430 mA max (at 24 VDC) |
| Article Number | 3BSE018160R1 |
| Processor Type | MPC860 (48 MHz) |
| Memory Capacity | 16 MB RAM / 2 MB Flash PROM |
| Power Dissipation | 6 W typ / 10.3 W max |
| Power Supply Range | 24 VDC (19.2 to 30 VDC) |
| Network Interfaces | 2 Ethernet ports (RJ-45), 2 Serial ports (RS-232C) |
| Protection Class | IP20 (IEC 60529), ISA-S71.04 G3 compliant |
Backplane Bus Velocity & Redundant Synchronization
The unit executes deterministic program cycles down to 1 ms across the internal backplane bus interface, delivering an execution speed of 0.23 ms per 1000 boolean operations. Linked via the dedicated TK851 RCU-Link cable, the dual PM861A processors execute continuous state synchronization, maintaining seamless bump-less CPU redundancy with a switch-over latency of <=10 ms. The architecture supports up to 12 communication modules via the CEX-bus expansion interface alongside 7 optical I/O clusters.
Frequently Asked Questions
Q: What physical hardware items are included in the complete 3BSE018160R1 processor kit assembly?
A: The kit contains two PM861A CPUs, two TP830 baseplates (115 mm), two TB807 ModuleBus terminators, one TK850 CEX-bus expansion cable, one TK851 RCU-Link cable, and two 3.6 V lithium backup batteries.
Q: How does the system handle real-time memory preservation during external power supply loss?
A: Each PM861A CPU contains an individual 3.6 V lithium backup battery (part 4943013-6) that retains user application software and dynamic system data in RAM during primary power interruptions.
Q: Can the PM861AK02 redundant processor kit be specified for newly constructed installations?
A: No, this unit is non-RoHS 2 compliant and serves strictly as a replacement component for existing systems installed prior to July 22, 2017. New greenfield installations require the PM862K02 processor kit.
Field Installation Guidelines
Follow these sequential physical installation steps when assembling the redundant processor pair:
- Isolate the 24 VDC main power feed and verify zero voltage across the cabinet terminal blocks.
- Mount the two TP830 baseplates side-by-side on the 35 mm DIN rail using the integrated slide-lock mechanism.
- Connect the TK851 RCU-Link cable between the dedicated redundancy ports on both baseplates to establish processor synchronization.
- Interconnect the CEX-bus expansion path using the TK850 cable, ensuring TB807 ModuleBus terminators land on open bus ends.
- Insert the 3.6 V lithium backup batteries into each PM861A CPU module housing.
- Align and press each PM861A processor onto its respective TP830 baseplate until the locking mechanisms click into place.
- Land 24 VDC power supply wiring, energize the system, and observe diagnostic LEDs to confirm CPU redundancy handshake.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
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