Feedback Signal
FG (Frequency Generator):
Speed pulse output, real-time monitoring of actual speed.
RD (Rotation Detector):
Running/Locking Status Detection.
TACH:
Speed square wave signal, compatible with motherboard standard fan interface.
ALARM:
Fault alarm output (over temperature, over current, stall). Multi-fan unit network supports master-slave synchronization (Master Slave) or multi-machine parallel speed regulation, and adjusts the speed of multiple DC centrifugal fans uniformly through a single control signal. It is suitable for large cabinets or ventilation duct arrays.









