The new controller adopts the same communication protocol as the DC fan. Compatible with the DC fan control system.
The controller adopts physical transformer speed regulation. Instead of using thyristor voltage regulation.
The total distortion rate of current harmonics during controller operation is around 8%, which is similar to that of a DC fan. The traditional thyristor voltage regulation controller generates a large amount of current harmonics during operation- Usually between 30% and 60% THD. In the case of extensive use, it will cause great harm to the user's power grid.
The new controller eliminates harmonic problems and will not cause harm to the power grid when applied on a large scale.
This controller is suitable for all AC fans with a power not exceeding 200N.
Can be applied in new FFUs or renovation projects.
The communication method is the same as that of a DC fan. Connect the controllers together through Ethernet cables.
The transformer responsible for voltage regulation adopts high magnetic density silicon steel sheets and multiple turns ratio. Ensure that the transformer maintains no noise and ultra-low temperature rise during operation

By installing a new controller FFU, the communication network can be laid out according to the network architecture of the DC FFU.
The control system also adopts the same set, truly achieving compatibility between AC and DC

The hardware of the new architecture from top to bottom is: server switch super gateway FFU
Every 31 FFUs are connected as a group to the super gateway, and each super gateway can connect 8 groups. There are a total of 248 units. Each super gateway is connected to the switch.
Up to 254 super gateways can be used