Delta Variable Frequency Drive Comparison

Electromechanical Motors, Actuators, Solenoids and Drivers
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VFD-E vs VFD-EL Series Comparison

After spending some time comparing these two series to each other, these are the major differences I could find between the two series. As you can see, The E series has everything the EL series does and more.

Vector AC Micro Drive Simple AC Micro Drive
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VFD-E VFD-EL
Brake Transistor int/ext Int
Closed Loop Control Yes No
Sensorless Control Yes No
PLC Program Capabilites 500 0
Digital I/O 6/3 6/1
Analog I/O 2/1 1/1
PLC Language Ladder None
Data Sheet Data sheet

Information about these series and more were taken from this selection tool provided by Delta.
Delta Industrial Automation Product Selection Tool

Product Numbers loaded into the Digikey Catalog

VFD-E Series VFD-EL Series HP Output Current Wattage Supply Voltage
VFD002E21A VFD002EL21A 0.25 1.6A 200 W 230VAC
VFD002E11A VFD002EL11A 0.25 1.6A 200 W 115VAC
VFD002E23A VFD002EL23A 0.25 1.6A 200 W 230VAC
VFD004E43A VFD004EL43A 0.5 1.5A 400 W 460VAC
VFD004E21A VFD004EL21A 0.5 2.5A 400 W 230VAC
VFD004E23A VFD004EL23A 0.5 2.5A 400 W 230VAC
VFD004E11A VFD004EL11A 0.5 2.5A 400 W 115VAC
VFD007E43A VFD007EL43A 1 2.5A 750 W 460VAC
VFD007E21A VFD007EL21A 1 4.2A 750 W 230VAC
VFD007E23A VFD007EL23A 1 4.2A 750 W 230VAC
VFD007E11A VFD007EL11A 1 4.2A 750 W 115VAC
VFD015E23A VFD015EL23A 2 7.5A 1500 W 230VAC
VFD015E21A VFD015EL21A 2 7.5A 1500 W 230VAC
VFD015E43A VFD015EL43A 2 4.2A 1500 W 460VAC
VFD022E21A VFD022EL21A 3 11A 2200 W 230VAC
VFD022E43A VFD022EL43A 3 5.5A 2200 W 460VAC
VFD022E23A VFD022EL23A 3 11A 2200 W 230VAC
VFD037E43A VFD037EL43A 5 8.5A 3700 W 460VAC
VFD037E23A VFD037EL23A 5 17A 3700 W 230VAC
VFD055E43A 7.5 13A 5500 W 460VAC
VFD055E23A 7.5 25A 5500 W 230VAC
VFD075E43A 10 18A 7500 W 460VAC
VFD075E23A 10 33A 7500 W 230VAC
VFD110E43A 15 24A 11000 W 460VAC
VFD110E23A 15 45A 11000 W 230VAC
VFD150E43A 20 32A 15000 W 460VAC
VFD150E23A 20 65A 15000 W 230VAC
VFD185E43A 25 38A 18500 W 460VAC
VFD220E43A 30 45A 22000 W 460VAC
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Hi
I have a question regarding the supply voltage. In switzerland we have a 3 phase grid with 230V per phase and a combined voltage of 400V.

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I want to run an induction motor that needs 380V in a star (Sternpunkt) configuration as shown in the picture. Do i need the 230V or the 460V inverter for such a usecase? Couldn’t find any information regarding that in the manuals.

Thanks for any answers!

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Greetings,

Is the 380V mentioned referring to a line-line or line-neutral measurement? I would expect the former, but it’s the sort of thing that should be verified…

A glance at the datasheets suggests that the VFD-E series can output up to twice the input voltage at both the 115 and 230V nodes, whereas the -EL series does this at the 115V node only; the rest of the devices output only up to the input voltage.

On this basis, it would appear that a 230V unit of either series (and sufficient current rating) would likely be suitable for your motor.

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Hi Rick
Thanks for your response. I intend to use a MS300 Series VFD (need for ethercat interface and usb) but i thought, it’s the same regarding the voltage rating across all delta drives. On the swiss grid, line to neutral is 230V and line to line is 400V. The 380V requirement according to the motor plate is referencing line to line. Its a 12A (5kw motor) btw. The neutral point is hidden inside the motor and only U V W are available. I don’t get the point in the manual if the vfd can “connect” itself in a line to line configuration to reach the 380V target voltage. As far as i’ve seen the MS300 series can only step down the input voltage.

Thanks for any further inputs.

Kind regards

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It would seem that your motor would be suitable for fixed-speed use directly from the source you have available then. Motor nameplate ratings will often quote values at slightly less than nominal source voltage to allow for cabling losses, and in any event the difference is within the 10% voltage tolerance commonly applied to utility sources.

The typical VFD rectifies the input AC voltage, and re-inverts it to create a sinusoidal output of the desired frequency. That’s fairly straightforward in the case where the available source is suitable for direct drive of the intended load at fixed speed, which is what the MS300 series appears targeted for. It’s possible to play tricks to develop an output voltage higher than the input (e.g. a 208v-3ph output from a 120V single-phase source) but that’s a more complicated task, and not a thing to be expected unless specifically stated.

I hope this helps–I’m not especially familiar with these particular product lines, so please take that into consideration.

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Thanks Rick for your insights =)