Emerson FM-3 Instrukcja Naprawy Pobierz pdf (Strona 27)

“o” Over Speed Fault

This fault is indicated by the display showing a lower case “o”. This indicates a motor

over speed has occurred.

Potential causes for the “o” Over Speed fault

• Motor speed exceeds 150% of maximum value as defined in “stdmotor.ddf” file

• Actual motor speed exceeds programmed motor limit speed

• Pulse mode maximum frequency rating exceeded

• Noise

“o” “Over Speed Fault”

Pulse Mode

Maximum Frequency

rating exceeded

Noise

Check "stdmotor.ddf" file

for exact Motor RPM Spec.

Investigate cause

of Motor Overspeed

Yes

"o"

Over Speed

Fault

Speed Exceeds

150% of value

"stdmotor.ddf" file

Actual Motor Speed

Exceeds Programmed

Over Speed Limit

Check "over speed limit"

in software

Check Contnuity

of Feedback Cable

Shield from

Motor to Drive

Check Routing

of Power and

Feedback Cables

Reduce Incoming

Pulse Frequency

to < 8 Mhz

Return to Service

Reset

using Reset P/B

Download

Corrected file

End

Yes

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Emerson FM-3 Instrukcja Naprawy Strona 27

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