Product Features
As manufacturers of ultra-quiet fans for commercial and industrial applications, we are proud to introduce the 220x60mm Round DC Axial Fan, equipped with a high-quality brushless DC motor to provide excellent cooling for your equipment.
The size of this fan is 220x60mm, the maximum speed can reach 3500rpm, and the maximum air volume reaches 645cfm. It can effectively discharge the heat inside the equipment and ensure the stable operation of the equipment. At the same time, the fan provides multiple voltage options: 48V, 24V, and 12V to meet the needs of different devices. The outer frame is made of aluminum, and the fan blades are made of high-temperature resistant PBT. The structure is excellent, ensuring the stability and durability of the fan.
The fan uses 100% high-quality copper wire and ultra-thick silicon steel sheets to ensure high performance and long-term stable operation of the fan. The double ball bearing brand is NMB, which has low noise and long service life.
In addition, our fans are equipped with multiple speed controls and safety protection features. In terms of speed control, it supports PWM speed regulation, Vsp speed regulation, temperature control speed regulation, closed-loop control, forward and reverse cycle operations. In terms of protection functions, it includes locking protection, current limiting protection, slow start, IP (68) protection level, explosion-proof function, etc. At the same time, it also has output signal functions, including speed detection signal output (FG signal), fault shutdown alarm signal output (RD signal), and abnormal low speed alarm signal output (LD signal).
This Round DC Axial Fan is widely used in electronic equipment, drive modules, converter technology, power modules, control cabinets, chassis cabinets and other fields.
Products functions
Below we introduce the functions of the cooling fan signal wire through the functions in the DC fan coding rules:
1. FG Function Introduction:
FG (Tach output type) Connection Diagram
Fan with FG function will creat a square wave output.You can know fan speed by sensing the output wave Frequency. Most dc fan have four pole.So when fan run for one round, there will be two high level pulse. About other Multipole brushless fan, high level pulse will be different.
But please notice if you want to sense it's output wave, there is a external circuit. Please check the circuit Diagram below. There is no pull-up and VCC value limit.But please notice the Max Iin have to be small than 20mA.
2. RD Function Introduction:
RD (Alarm output) connection Diagram
Some fan have RD extra function. There is a alarm signal output when fan stop work. Please notice there are Two kinds of signal output. Different customer will need different alarm type. Please check the diagram below.
3. PWM Function Introduction
PWM (DC Voltage control) Introduction
With this function, the speed can be controlled by applying an extro DC voltage signal. This voltage input"Vin" may have any value from 0V to 10V(0V~5V is ok too, it's depending on your application). Normally two kinds of "speed VS dc voltage curve" are used.
PWM (duty cycle control) Introduction
With this function, the speed can be controlled by applying a pulse width modulated signal whose frequency maybe in the range of 25k Hz~30k Hz. High voltage means 3~10V. Low voltage means 0~0.8V. Normally two kinds"Speed Vs duty cycle curve" are used.
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