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Vfd sj300 don't have wiring diagrams?

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Vfd sj300 inverter looks like hitachi make inverter. if thats the case give me a mail for drgs.
rathaursunil@gmail.com

Posted on Nov 24, 2008

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When i turn on the drive it display it display code for ground fault. my wiring are correct. And i cannot use keypad of drive. how can i resolve the fault .


why cant you use the keypad/'display of drive, is it not lit up ? if so you most likely have a grounded phase on the load side (motor) I suggest disconnecting motor completely and measuring to ground with a high voltage tester (megger) if you have a phase to ground then all the power that drive puts on that wire will shunt to ground , causing infinite current , this will affect the power supply of drive and not allow drive to even power up correctly
also you failed to mention if motor was 3 phase if so , some drives require installer to remove shunt jumpers (see install directions) this will "Lift" the surge suppresors off earth ground and over to "virtual" ground that occurs at center of three phase power , this might be seen as a ground fault if this is not done correctly

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Password of inverter


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1 Answer

Were can i buy delta vfd at dubai


can u give ur tel no:i want to buy 1.5 kw delta vfd

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1 Answer

Were can i find delta vfd at dubai


Official Agents for Delta Electronics (VFD, PLC, Servo Motor, Servo Drives, Temperature Controllers, Communication modules and devices) in UAE, Dubai is ARPI Industrial Equipment.

Check the website.
http://arpiie.com/index.php/motorsdrives/acdrives

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Thermal overload occurs


I too am experiencing an "oc2" on my gvx1000-1.5-t unit after replacing original motor with near identical, however, relacement motor is rated for 60hz and the vfd is programmed for 50hz. but I don't have a manual nor does my machine manufacturer, so I'm trying to source a manual to alter the vfd parameters for the new motor. My original problem was a locked shaft on the original motor and caused the oc2 fault, but I bent the shaft trying to break the motor flange free and now my spare won't work either :-(. Try removing the load from your unit and see if you still get a fault, if so, you probabley have an enternal problem with the vfd. if by removing the load you don't get a fault, check for anything seized in the drive components, including the motor shaft itself(bad bearings will do it!). An amp test of your load, if it runs long enough to test, will tell you if you're exeeding the vfd's programmed full/max amp set point. Adjust the set point or remove the cause of the excessive amp pull. Good luck. Wouldn't happen to have a manual on the unit I'm looking for, would you?

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How to reset delda vfd43a


pls. set paramter 00-02 to 10 to this is to reset delta vfd b-series

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Any real time function is there in hitachi VFD..? VFD need to operate it certain speed based on time.


Ther are settable ramp up and ramp down times and there are settable speeds (max and run)

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