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What is an E-19 error code on the ATV21/212 drive?

FA173137

14 July 2022

Issue:
 E-19 code on the ATV21/ATV212 drive.

Product line:
Altivar ATV21 ATV212

Environment:
All models

Cause:
Drive trips with E-19 code.

Resolution:
E-19 error is a communication error between control CPUs in the ATV21/212 drive.  The fault is usually due to a loose connection on the cable connecting the control card and power board.  Another possible cause is that the power board or control board is damaged.  Also, verify that the 24V or 10V supply on VFD is not being shorted due to wiring.