Allen Bradley powerflex 525

[Kgaraffa]

Just had an interesting dilemma. 6 powerflex 525’s changed their max hertz on 5 different machines all are connected via Ethernet but do not work in tandem. What would cause the maximum hertz to change by themselves.

 

[bornwild]

Just had an interesting dilemma. 6 powerflex 525’s changed their max hertz on 5 different machines all are connected via Ethernet but do not work in tandem. What would cause the maximum hertz to change by themselves.

Do you have ADC enabled?
Are these drives added recently?

 

[Kgaraffa]

Do you have ADC enabled?
Are these drives added recently?

No the ADC is not enabled and the drives have been in service over 6 months.

 

[Ken Moore]

Bubba

 

[Maxkling]

Did it get changed back to the default?

 

[jdbrandt]

Did it get changed back to the default?

Ooooo good question.

These un-detailed inquiries need some sharpening.

Rule #3: If you want better answers, ask better questions.

 

[jdbrandt]

Just had an interesting dilemma. 6 powerflex 525’s changed their max hertz on 5 different machines all are connected via Ethernet but do not work in tandem. What would cause the maximum hertz to change by themselves.

Are the DataLinks set to access the Max Frequency parameter?

 

[jdbrandt]

Just had an interesting dilemma. 6 powerflex 525’s changed their max hertz on 5 different machines all are connected via Ethernet but do not work in tandem. What would cause the maximum hertz to change by themselves.

Is there a MSG block setting these parameters, somewhere in the code?

 

[Kgaraffa]

No default is 60. 3 drives went to 10 hertz and 3 went to 110 hertz

 

[CLanford]

Are the DataLinks set to access the Max Frequency parameter?

What he said.

I don't believe Max Frequency is an output option on DataLinks but there are 15 "PreSet" frequencies that can be written to via code. Do you have any frequency parameters set in the "Output" option?