Emerson FM-3 Guide de dépannage télécharger pdf (Page 23)

“e” Encoder State

This fault is indicated by the display showing what appears to be a lower case “e”. It

indicates a fault involving the Encoder feedback.

Potential causes for the “e” Encoder State fault

• Any Encoder Output and its Compliment in same state

• Poor Shielding (Use “E” Fault Flow Chart)

• Custom Cable

“e” “Encoder State Fault”

"e"

Encoder State Fault

Check PowerTools Pro

Advanced Tab

Enabled

Yes

Recycle

Power

Returns to

Normal Operation

End

Invalid

Encoder State

Reporting

Check +5 VDC

J7 pin 7 to pin 17 (Gnd) EN

J6 pin 7 to pin 17 (Gnd) Epsilon

Should be 4.9 to 5.15 vdc

End

Yes

Replace

Cable

End

Return Drive

to Factory

Check Continuity

Encoder Phases

Motor to Drive Cable

Power Off

Cable

OK?

End

Contact

Tech Support

Yes

Use Emerson CT Feedback Cable

Cable with A, B, and Z shielded

Noise Check Cable

Routing

Contact

Tech Support

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Emerson FM-3 Guide de dépannage Page 23

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