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EATON H-Max Series Variable Frequency Drives, FR7
Eaton H-Max Series FR7 variable frequency drives (VFDs) are ideal for controlling the speed & torque of an electric motor in a variety of industrial & commercial applications in fans, pumps & conveyors. They match the desired output by adjusting the supplied electrical power's frequency. These ...VFDs have an FR7 frame size and multiple control modes for voltage, current & sensorless vector control. Their frame door is mounted with a graphic display & keypad for easily controlling the frequency. The H-Max Series VFDs also lower operating costs by reducing energy consumption and improving process control.Read more
AWorking Mechanism
- Variable Frequency Drives (VFDs) work by changing the incoming alternating current (AC) into direct current (DC) and then converting the DC back into AC power at a different frequency.
- The frequency of the AC power can be varied by adjusting the switching rate of a connected inverter.
- Increasing the frequency of the VFD increases the speed of the motor and decreasing the frequency reduces the speed of the motor.
Features
- Eaton H-Max Series variable frequency drives have a compact design for easy installation & user-friendly operation.
- These units have numerous advanced control & protection functions like adjustable motor overload / short-circuit protection and programmable digital inputs & outputs.
- Their removable entry panels (top & bottom) & easily accessible terminals allow quick connections with the equipment.
- These VFDs further feature a DC link choke for reducing electrical noise caused by harmonic distortions.
- They can be used for remote control & monitoring operations using their digital communication ports & A-type software. They can easily control the bypass circuit using a keypad, digital input, BMS communications or in-fault conditions.
- IntelliDisconnect NEMA Type 3R or IntelliPass NEMA Type 3R enclosure of these units protect them from damage.
- Selected models have a space heater with transformers and pilot lights for easy, controlled & smart operation.
Standards and Approvals
- IEC 61800-5-1
- UL 508C
- cUL
Frequently Asked Questions
How to maintain these variable frequency drives?
- Visual inspection of all the components showing excessive heating or discolouration due to corrosion / oil leaks.
- Cleaning the accumulated dust & debris using dry compressed air.
- Checking the torque settings of connectors. Don't over-torque the connections.
- Set the replacement schedule for components with short life cycles.
What are the voltage ratings for these Eaton H-Max Series FR7 variable frequency drives?
They have voltage ratings of 208, 230 & 480V.
What is the operating temperature of these Eaton H-Max Series FR7 variable frequency drives?
These VFDs have a maximum ambient operating temperature of up to 50 degrees C.
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