Browse FAQs

My ATV212 faulted and stopped with EPH1. What is that fault?

Published date: 24 June 2019

Issue:
My ATV212 faulted and stopped with EPH1.  What is that fault?

Product Line:
ATV212, ATV21

Environment:
All models and serial numbers

Cause:
External or internal

Resolution:
EPH1 is an input phase loss.

  • Verify the wiring connections on all three phases coming into the drive (R/L1-S/L2-T/L3).
  • Measure line to line voltages to make sure they are all present and equal phase to phase.
  • To clear the fault, cycle power.  Turn off the line voltage until the display goes off.  Then turn the voltage back on.

Was this helpful?

What can we do to improve the information ?

Can't find what you are looking for?

Reach out to our customer care team to receive information on technical support, assistance for complaints and more.