PaulKim1003

Fault Reset on powerflex

7 posts in this topic

Posted (edited)

Hello,

There is a logic command for clear faults in the program.

Would it do the exactly same as pushing the reset button key on the powerflex drive?

I have attached pics so it's more clear.

Thank you

reset fault 2.PNG

fault 1.PNG

Edited by PaulKim1003
wrong image

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It is my understanding that it can be used that way.

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Posted (edited)

HI BROTHER,

THERE IS ONE OUTPUT BIT IN PARAMETER OF DRIVE.. VFD:O.ClearFaults

 PLEASE FIND ATTACHED SCREENSHOT..

vfd.thumb.png.0656772e042e9e11e3df6c0602

Edited by Dev Shrivastav
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The red stop key is a stop and clear fault. These signals are separated into 2 bits over the logic command

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@PaulKim1003 which specific model of PowerFlex are you using?

As you've seen from the previous responses, the answer to your question may vary from drive to drive. The physical Stop button on the front of all PF drives can also be used to clear drive faults. However, within the logic of the drives, some PowerFlex drives' Stop and Clear Fault are always the same input (PF70), and on other PF drives they can be separate inputs (PF755).

As @Dev Shrivastav showed above, when they can be on the same digital input, you will almost certainly have to program separate logic instructions. 

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17 hours ago, ElectronGuru said:

@PaulKim1003 which specific model of PowerFlex are you using?

As you've seen from the previous responses, the answer to your question may vary from drive to drive. The physical Stop button on the front of all PF drives can also be used to clear drive faults. However, within the logic of the drives, some PowerFlex drives' Stop and Clear Fault are always the same input (PF70), and on other PF drives they can be separate inputs (PF755).

As @Dev Shrivastav showed above, when they can be on the same digital input, you will almost certainly have to program separate logic instructions. 

In the 525, there's a parameter to select what the "stop" command does: Stop, or Stop and clear faults. You'll have to dig into the parameters to see what's going on.

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Posted (edited)

@ElectronGuru a pf70 doesn’t always have to be the same input to clear faults and stop. There is a clear fault mask to prevent the clear fault. Stops can’t be masked

I believe you’re asking if only a clear fault can be sent via comms. Yes it can. See the logic command word. If you want to mimic a stop button key being pressed, then that may take two network signals depending on how your stop button and masks are setup as

Edited by VFD Guy

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