Description
NDPI-02 (3BHL000764P0001) is a fiber optic connection board in the ABB Advant/ACS 600 series, with the core function of establishing an electrically isolated fiber optic communication interface between the control panel bus and Modbus module bus.
core functionality
The module itself does not execute any control logic, but exists as a communication bridge node. It provides one fiber optic port for connecting the CI801 or CI840/CI840A communication interface module on the control panel side to a remote I/O cluster or inverter data machine. In the ACS 600 MultiDrive system, NDPI-02 is a critical connection link between the control panel and the fiber optic module bus, ensuring real-time data transmission between the operator station, engineering station, and on-site I/O.
ABB NDPI-02 CONNECTION BOARD 3BHL000764P0001
Communication and Topology
Supports three types of fiber optic network topologies:
Simple ring: Fiber optic module bus nodes are connected in a ring like manner
Duplex chain: Fiber optic module bus nodes are connected in a row, supporting up to 200 network segments
Dual fiber ring network redundancy: Two optical ports achieve redundant ring network. In case of any fiber failure, the system can rebuild the link within 10ms and automatically recover after troubleshooting
The module is equipped with ABB’s proprietary CI Ring network protocol, which does not require configuring a root node and is plug and play. Fiber optic transmission rate of 10 Mbit, supporting multimode (850nm/1310nm, transmission distance of 2km) and single-mode (1310nm/1550nm, transmission distance of 20km) fiber optic, standard SC optical interface.
Electrical Characteristics
The working power supply is 24V DC. The module implements electrical isolation between the panel side and the bus side, effectively blocking the impact of on-site grounding circuits and transient interference on the controller. Equipped with 4000V lightning protection, 1.5A overcurrent protection, and 600W surge protection. Automatically detect the electrical ID of the module when powered on, and refuse to enter the running state when it does not match the system configuration.
Physical specifications
Dimensions: 17.6mm (width) x 56.7mm (height) x 42.3mm (depth)
Weight: Approximately 90g
Protection level: IP20
Working temperature: 55 ° C for horizontal installation, 40 ° C for vertical installation
Storage temperature: -25 ° C to+70 ° C
Installation and Diagnosis
DIN rails are installed inside the control cabinet. The onboard LED indicator lights display real-time power, communication, and fault status. Supports hot swapping and can be replaced while the system is powered on.
Typical Applications
Mainly used for communication expansion of control panel in ACS 600/ACS 6×7 MultiDrive frequency converter system, and also applied to ABB traditional control platforms such as UNITOL 5000/6000 excitation system, Symphony Plus PLS controller, Advant Fieldbus 100 series, etc. As an access node for fiber optic module bus, it realizes high-speed and reliable communication between remote I/O and main controller.
