Product Introduction
This specification defines the system composition, power supply scheme, communication networking, control logic and key performance parameters of the Fan Wall product. It applies to the design, manufacturing, inspection and delivery acceptance of the product.
The Fan Wall consists of fan panels, power groups and a master control panel. Each fan panel integrates 24 fans. Three fan panels form one group, and each group is equipped with dual three-phase AC inputs (S1 as primary and S2 as backup) to provide power redundancy. Seven groups form one complete Fan Wall, i.e. 21 fan panels and 504 fans in total. Fan panels are cascaded in a daisy-chain topology via RS485 (RJ45 cable), monitored centrally by the master control panel with a meter head, and their speed is regulated centrally through PWM signals.
System Architecture
The Fan Wall adopts a five-level structure of "fan - fan panel - group - Fan Wall - master control panel", in which the power supply chain, communication chain and control chain are independent from each other.
Fan panels are cascaded in a daisy-chain topology via RS485 bus with RJ45 cable: the master control panel acts as the master node and connects Group 1 through Group 7 in sequence, and the 3 fan panels within each group continue to cascade, covering up to 21 fan panels per chain. Each fan panel is equipped with COM1/COM2 RJ45 communication ports (COM cable RJ45-RJ45), and the Modbus address of each panel is set via its DIP switch with no duplication allowed among the 21 fan panels. The control module provides ETH1/ETH2 management ports for connection to a PC or router.
Contact ANEN today to discuss your custom requirements for data center cooling fan assemblies and to receive a quote.
