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  • Users: krsh
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  1. krsh

    Parameters for PF 700 and regen Unit

    Hello, I am using a PowerFlex 700 drive for a pump jack application on a 500V not grounded power network. I want to install a regenerative unit(Revkon SVC) for this drive and i want to know what parameters i need to change. I also need to know what is the simplest way to know how much energy is...
  2. krsh

    Problem with motor chokes for VSD

    Thank you Skogsgurra, this seems to be the problem.
  3. krsh

    Problem with motor chokes for VSD

    Hello friends, I have a problem with a motor choke(code: VW3A5104, Schneider). It is installed on the output of a 15kW VSD(code: 6SE6400-2UE31-5DA1) on a 500V/50Hz network. The problem is that the motor choke becomes very hot when we run the pump(pump application) almost full speed(40Hz) and...
  4. krsh

    MOLLER EASY 719 PLC PASSWORD

    Power OFF->Power ON and try again.
  5. krsh

    MOLLER EASY 719 PLC PASSWORD

    Hello, The only way to access the PLC is to manually input 5 times the wrong password with the on-board display. After this you will be asked if you want to delete the program(which will remove the password too). You can find additional info in the manual of the PLC. Have a nice day.
  6. krsh

    Frequency converter for Oil extraction

    I am not looking for a specific brand, but if you have a brand that you liked please send some links/data for their products. About the marketing material i only found something i am looking for only at ABB and Allen Bradley site.
  7. krsh

    Frequency converter for Oil extraction

    Yes, and i found something on ABB site, see link...
  8. krsh

    Frequency converter for Oil extraction

    Hello, Does anyone have documentation on VFD specifically for oil extraction. I heard that the difference between classic and this drives is on parameters assignment(you have an additional option for oil extraction)and i am interested in finding out more. Thank you.
  9. krsh

    star-delta start up

    Connect the motor only on star an see if it works. After that you will now what to do.
  10. krsh

    VFD reversing

    Best solution for you is to install an external brake resistor, this will allow the VFD to dissipate the energy created by the ramp down function without damage to the drive. This solution will protect the VFD when you will connect the transmmision to the load(particularly recommended when you...
  11. krsh

    motor overheating with VFD, and incorrect amp readings

    Beside checking the VFD parameters also check the mechanics of the fan(bearings, propeller, alignment). An error on this side can also trigger the same symptoms.
  12. krsh

    Siemens Sinamics G120 with BOP Fixed Frequencies

    Post your problem here https://www.automation.siemens.com/WW/forum/guests/Conference.aspx?SortField=LastPostDate&SortOrder=Descending&ForumID=156&Language=en and Siemens experts will help you with an answer or a link to a "Getting started" guide for Sinamics...
  13. krsh

    Locked rotor test for a 1000 HP DC motor

    It was just a joke on the fact that you hurry to press submit before you collect all your ideas. Sorry if i offended.
  14. krsh

    Locked rotor test for a 1000 HP DC motor

    electricpete needs a star for his posts :D
  15. krsh

    Controller for Power Substation

    Try Siemens S7-300 PLC. Siemens offers additional modules to install on the S7-300 CPU for analog signal for any requirements.
  16. krsh

    Fan application

    You are right is class 5 trip OL. I will install a class 10 OL to see if it works and post the conclusions.
  17. krsh

    Fan application

    Change to Class 20 OL looks like the best choice. Thanks rbulsara.
  18. krsh

    Fan application

    We have 3 phase 50Hz 380 V between 2 phase and 220V between phase and N.
  19. krsh

    Fan application

    I set the OL at 16 amps and still trips, only when i replaced it with a 20 amps OL than it runs OK and has the starting current of 60 amps and the running current of 13 amps clockwise and 10.2 CCW. The real problem is as compositepro said, high inertia, that is the reason why it takes so long...
  20. krsh

    Fan application

    rbulsara, the OL protection is set to 12 amps and the motor plate says 11.6. waross what do you mean by "230V systems and 380V systems".

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