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  1. Mark sure the generated (wild leg) is not...

    Mark sure the generated (wild leg) is not connected to the transformer, as the voltage can vary quite a bit. It sounds like the contactors are not closing, if the overrides work.
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    I have had good experience with the Hitachi...

    I have had good experience with the Hitachi WJ200, have done several hundred installs with them. I think you may have an issue finding them in stock at this point, most of the vendors are out of the...
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    I guess we agree to disagree in these times....

    I guess we agree to disagree in these times. Manufactures build all different levels of equipment based on cost/market/specifications/durability/etc. Many products are poorly designed, often minimize...
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    An N=1 with one model is not representative of a...

    An N=1 with one model is not representative of a product group or a manufacturer's products. Mean Well builds a wide range of models, so the cheaper ones are just that. Have installed 100's of their...
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    I would look at a universal switching power...

    I would look at a universal switching power supply that pretty much could be used anywhere and you would not need to certify for other countries. There are a number of mainstream switching power...
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    Hitachi makes good reliable VFD's at the price...

    Hitachi makes good reliable VFD's at the price point. The Teco L-510 is a less expensive alternative and may be a bit easier to program. I believe the Teco has a removable front panel if you want to...
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    VFD's for single or 3 phase input (with no...

    VFD's for single or 3 phase input (with no derating), the most common size are up to 3 Hp, and very few at 5 Hp and higher. Beyond that point on they are mostly limited to 3 phase input models and...
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    These use fairly standard wiring configurations,...

    These use fairly standard wiring configurations, the first two contactors are the forward and reverse, you can see this because it just flips two of the motor power wires to the motor, there is also...
  9. Thread: .25 mfd capacitor

    by mksj
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    1,685

    In current terms 0.25 mFd = 0.25 uF, in year past...

    In current terms 0.25 mFd = 0.25 uF, in year past it was milliFarad which is an order of magnitude greater, I am assuming you are looking for a standard film or an RC snubber which are more common....
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    It not about running a motor at a full 7.5HP...

    It not about running a motor at a full 7.5HP continuously, and sure you can dial it down anyway you want, but it does make a difference which VFD you buy, what your driving and the specific VFD...
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    Seems to be just a static converter with what...

    Seems to be just a static converter with what appears to be two start and 4 run capacitors. The 3rd leg can only be measured when the motor is running "Only DPS check the voltage is the output...
  12. The chuck will turn fine when in gear, it may be...

    The chuck will turn fine when in gear, it may be a bit more resistance if you are in a low gear. Otherwise you can always shift to a higher speed gear which will offer less resistance and then switch...
  13. Typically prefer to ramp up the manual lathe over...

    Typically prefer to ramp up the manual lathe over 3-5 seconds, no reason to have it instantly go to speed, and also if you forget and leave a chuck key in the chuck it is less likely to impale you on...
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    There is limited advantage of switching the motor...

    There is limited advantage of switching the motor windings from high to low vs. using the stock motor in a single speed configuration and turning down the speed pot 50%, the Hp rating will be the...
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    If you have a dual speed motor then you would...

    If you have a dual speed motor then you would wire it for a single speed, and which speed connections you use would be based on the type of motor if it is a constant Hp or constant Torque type. So...
  16. Why not something like the Phase Perfect PT440R...

    Why not something like the Phase Perfect PT440R which run around $9.5K US, unlikely you will be using the full line load at any one time, so a 40Hp digital phase converter would seem practical. They...
  17. It would not work on 110V if it did not work on...

    It would not work on 110V if it did not work on 220V, per above. Does the motor make any noise, like hum when power is applied or nothing. A bad start capacitor or centrifugal start switch would...
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    Not sure what you are asking, and it also depends...

    Not sure what you are asking, and it also depends on the usage of the mill. An inverter drive mill (digital drive) typically uses an inverter/vector motor, the one on my mill is rated from 20-200 Hz....
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    You cannot us a VFD to plug in and power the mill...

    You cannot us a VFD to plug in and power the mill and the circuitry which it sounds like that is your intention. The circuity will not run off the 3 phase generated from a VFD. Many control systems...
  20. The A510-2010-C3-UE will work off of a RPC, but...

    The A510-2010-C3-UE will work off of a RPC, but will need to upsize to the A510-2015-C3-UE if running off of single phase. A510 series appears to be a heavy duty version of the E510, but...
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    You will not be able to use the VFD as a plug and...

    You will not be able to use the VFD as a plug and play power source , to do so requires significantly over sizing the VFD and also limits its functions. The VFD motor terminals are to be connected...
  22. Yes. A pressure switch closes at the low pressure...

    Yes. A pressure switch closes at the low pressure setting and opens at the high pressure setting. You need to remove all other wiring to the switch and only use it to operate the VFD input run...
  23. It is not like an RPC that is plug and play, the...

    It is not like an RPC that is plug and play, the VFD motor connections needs to be directly connected to the motor in this application and you do not use the contactor or other switch gear between...
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    So to address your question, I would recommend...

    So to address your question, I would recommend you run the motor in a YY 2.2kW mode only (high speed wiring). You can either directly wire the motor to the VFD motor terminals or just not use the low...
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    I would get some more details about the "used"...

    I would get some more details about the "used" VFD's you are considering purchasing. Yaskawa is a good brand the MTBF on their VFD's is something like 27 years, but depends on a lot of factors. If...
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