Question about Delta Vfd037b23a Ac Drive Vfd B Inverter 5hp 230v

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We had a Delta vfd037b23a running a fan (we only use it to change the speed) and it was 3 phase input and only drawing 7.5 amps (max is 17). We have moved and no longer have 3 phase line power, we do have a rotary converter, will this hurt this VFD. Or can I run it off of single phase since its grossly over sized?

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To cut down on power usage, look into either purchasing or trading for a smaller three phase inverter.


Or the best choice for you is to get a VFD that runs off either single or three phase so that you can move it about at will (to single or three phase set ups).


As for hurting the VFD by using it in the overpowered but underused mode, not likely.

Posted on Nov 06, 2012

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Posted on Jan 02, 2017

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SOURCE: DELTA INVERTER VFD-B PROGRAM HAS BEEN LOCK

First thee attempts will "lock" you out. you must restart drive to allow 3 more tries. If you can't get to programming funcitons to change password you should be able to connect via serial connection and reset the password funcitons to 0. See attached pdf file for directions to connect pc to drive: http://www.delta.com.tw/product/em/control/cm/download/manual/IFD9507_application_en.pdf

If you don't have your manual to expalin password functions you can also find it at:http://www.delta.com.tw/product/em/download/download_main.asp?act=2&pid=1&cid=1

Posted on Jul 20, 2010

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A line with a slope of - 1 7 passes through the points u, - 1 and 5, - 3. What is the value of u?


Slope is usually designed by the letter m. m=delta y/delta x or change in y/change in x or (y2-y1)/(x2-x1).
What we know.
m = -17 (very very steep, with a negative slope, going up to the left)
Point (5, -3)
Point (u,-1)

Putting everything into the above equation, we get
m = (-3-(-1))/(5 - u) , where m =-17
-17 = (-3 + 1)/(5 - u)
-17 = (-2)/(5-u)
To get rid of the fraction, multiply both sides by (5 - u)
-17(5-u) = -2
-85 + 17u = -2
Add 85 to both sides to get rid of the -85.

-85 + 85 +17u = -2 + 85

17u = 83
Divide both side to get u by itself.

17u/(17) = 83 / 17

u = 4.89 (rounded to 2 decimals)

Good luck,

Paul

Oct 24, 2016 | Office Equipment & Supplies

1 Answer

Can I Run 3 Phase Motor On Y Or Star Connection Without A DELTA?


Some motors need a Y and Delta, with a special switch, to start up, you start with the Y. the motor starts turning, but does not give full power. after a few seconds (depends what the manual says) you switch to delta, to get full power. To let it run on full power in Y you need 1,4 times the voltage.
If everything runs fine, you won't have damaged anything.

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How To Convert Y Connection 3 Phase Motor Which Burnt Into A Delta Connection?


Delta is entirely different connection.... look here:

https://www.google.co.uk/search?q=3+Phase+Motor&es_sm=122&tbm=isch&tbo=u&source=univ&sa=X&ei=TWKZU9jpJobSOe3lgdAD&ved=0CEMQsAQ&biw=1534&bih=846

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I hav a Powermatic model E16 planer, the motor has been changed to 1 phase 220 amp , the speed sees too slow, what speed should the cutters turn


If it's got the 3-3/4" three-knife cutterhead, it should run pretty near to 5000 RPM. If it's got the 1-7/8" two-knife cutterhead, it should run at nearly 10,000 RPM.

That planer should take a 3600 (3450) RPM motor.

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1 Answer

How can i connect a timer switch hager EH 010 to three phase DOL startor. the startor is using for 7.5 HP motor


Copy following links for installations:
http://waterheatertimer.org/How-to-program-Hagar-timer.html#wire
http://waterheatertimer.org/images/EH-010-timer-wiring2.jpg
http://waterheatertimer.org/images/EH-010-timer-wiring.jpg
http://waterheatertimer.org/How-to-install-3-phase-timer.html

EH 010 timer is rated 16 amp max.
Typically this timer is connected to 12-14 gauge wire
Typical 3-phase 7.5 Hp motor draws 22 amps at 230volt and probably connected to 30-40 amp breaker and size 10-6 wire.

Timer and wire to timer must be fuse-protected with 15a bus fuse or line fuse or fuse block, and cannot be directly connected to 30-40 amp line.

Add comment as needed.

Apr 18, 2013 | Hardware & Accessories

1 Answer

How can i connect a hager EH010 timer switch for DOL startor. the startor is using for 7.5 HP motor


Hello sajikumar

Following links have wiring illustrations:
http://waterheatertimer.org/How-to-program-Hagar-timer.html#wire
http://waterheatertimer.org/images/EH-010-timer-wiring2.jpg
http://waterheatertimer.org/images/EH-010-timer-wiring.jpg
http://waterheatertimer.org/How-to-install-3-phase-timer.html

The EH 010 timer has max amp rating 16 amp max.
This timer is connected to 12-14 gauge wire
Ordinary 3-phase 7.5 Hp motor draws 22 amps at 230volt and probably connected to 30-40 amp breaker and size 10-6 wire.

Timer and wire to timer must be fuse-protected, and cannot be directly connected to 30-40 amp line.

Add comment for more assistance.

Apr 18, 2013 | Hardware & Accessories

1 Answer

1993 KD15 series miller delta weld 300 can it be hooked up to 220 single phase


Theoretically yes, but it would be a great deal of work and would draw a little over 6 times the current it did when on three phase power.

It would entail replacing the fan motors, connecting the 6 windings of the 3 phase primary in phase and in parallel. Plus adding a 115 circuit " tapping off half of the 220 single phase" incoming power for some aspects.

The control board would also need modifications as well. because it uses 3 current sense transformers and you would need to rework that circuit to compensate.

The short answer if you were wanting to set one up for home use- just invest in a "Sidekick" They did have a 240 volt single phase version, and if you consider the time invested to change something over that could trip the 200 amp service breaker, if you value your time- the money for a Sidekick would be well worth it.

If you want proof- open up the primary side of the Deltaweld and look at all of those connections you have before you- you would not be using 1/3 of them, and you would need to take the time to make sure the 6 windings were in phase otherise the transformer burns out- it may burn out anyway because the current draw increase beacause all the low impedance windings are now in parallel on a nominally lower voltage- just the potential of fire from that arrangement makes the money spent for a Sidekick to be considered "cheap insurance."

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