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Keyboard, RS485 sigle phase 220VAC cooling tower fan 220V motor speed controller

Keyboard, RS485 sigle phase 220VAC cooling tower fan 220V motor speed controller

Place of Origin : China
Brand Name : GANDO
Certification : CE
Model Number : 220V-M-__KW
MOQ : 1 set
Delivery Time : 2 days
Payment Terms : TT, L/C, Western Union, Paypa
Supply Ability : 200 sets per week
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220V Cooling Tower Fan Speed Controller for Electric Motors

A cooling tower extracts heat from process cooling water. Common applications for cooling towers provide cooled water for air conditioning, manufacturing, and electric power generation.
A variable frequency drive can correctly identify the cooling tower fan rotation, slow the motor speed to zero (when opposite rotation is detected), and accelerate the fan in the correct direction. The VFD drive eliminates brakes, anti-ratcheting devices, and time delays. Running the fan slower, which raises tower and water temperatures, can prevent icing in cold weather. A VFD can reverse a cooling tower fan and keep the heat in the tower, if necessary. In warm weather, fans can be run faster, providing additional cooling capacity.

Application Challenges

· Energy savings

· Reduce maintenance requirements (personnel and equipment replacement costs)

· Precisely control process water temperature stabilization

Power range of M VFD

Voltage: 1 phase 220VAC (200VAC – 240VAC)

Power: 0.4kw/0.5HP – 7.5kw/10HP

Specification of M VFD



Input frequency


Output frequency


Overload current

150% rated current 1min.

Control mode

V/F control

Starting torque

150% 5Hz

Control precision


Given Frequency Resolution

Digital given: 0.01Hz, analog given: 0.05Hz

Running Mode

Keyboard, control terminal, RS485

Output Voltage self-adjustment

When AVR function is enabled, the input voltage changes, while the output voltage almost remains unchanged

Frequency setting signal

0~+10V; 0~20mA;

Protection function

Short circuit, overcurrent, overload, overvoltage, undervoltage, default phase, overheating, and external fault, etc.



Cooling mode

forced air cooling


Less than 0.5g

Ambient temperature / Humidity

-10 Degrees~+40 Degrees / 20~90%Rh (no condensation)


Avariable-frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives. Since the voltage is varied along with frequency, these are sometimes also called VVVF (variable voltage variable frequency) drives.

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