Description
| Parameter | Specification |
| Product ID | 3BSE018157R6 |
| Model Number | PM861AK01 |
| Manufacturer | ABB |
| Control System | Advant 800xA / AC 800M |
| CPU Clock Speed | 24 MHz |
| Memory (RAM) | 8 MB |
| Flash Memory | 4 MB |
| Communication Ports | 2x Ethernet (CN1, CN2), 2x RS-232 (COM3, COM4) |
| Redundancy Support | Yes (via RCU Link) |
| Power Consumption | +24V DC (Typ. 160 mA) |
| Operating Temperature | +5 to +55°C (41 to 131°F) |
ABB PM861AK01
ABB PM861AK01
ABB PM861AK01
The ABB PM861AK01 is a high-performance processor unit designed for the AC 800M controller series, serving as the core intelligence for complex industrial automation tasks. This circuit board utilizes a modular architecture that supports various communication interfaces and I/O expansion, making it suitable for both standalone and distributed control applications. Its integrated 8 MB RAM allows for efficient execution of control logic and data processing, while its built-in redundancy capabilities ensure high system availability in critical processing environments.
Operational Guidelines and Maintenance
Product Operation Tips:
- Module Seating: Ensure the PM861AK01 is firmly pressed into the baseplate (TP830) until the locking mechanism clicks to prevent communication drops.
- Backup Battery: Always check the status of the exchangeable lithium battery; a “Low Battery” LED indicates that memory retention is at risk during power outages.
- Firmware Compatibility: Verify that the firmware version loaded on the processor matches the version of the Control Builder M software being used for programming.
Maintenance Procedures:
- Dust Prevention: Keep the cabinet doors closed and ensure the internal filters are clean, as conductive dust can cause short circuits on the processor surface.
- Firmware Updates: Perform periodic firmware health checks to ensure the module is protected against known software bugs and security vulnerabilities.
- Environment Control: Monitor the internal cabinet temperature; if the ambient air exceeds 55°C, install additional cooling to prevent the processor from throttling or shutting down.
