How can one troubleshoot an S-Flex 212 drive if it will not run in AFC or BYPASS?

Resolution:
When an S-Flex will not run in either AFC or BYPASS, it typically means there is a problem in the 120Vac control circuit.

Locate the overload mounted onto the Bypass Contactor (BC).  You should see a small blue reset button. Trying pushing that button to see if the overload was tripped.
On top of the Drive Output Contactor (DOC), there is an auxiliary contact block, LADN**. Check to see if that block is seated properly and can move freely. Same with the Bypass contactor (BC).
If still not running check for 120VAC from the control power transformer (CPT), terminals X1-X2.  Then check for 120VAC from XF-X2 to make sure the secondary fuse on the CPT is still good.
Confirm contact closures / continuity through terminals 1-2, 2-3, 3-4.
For a series E unit, with the selector switch in either AFC or BYPASS, operate the HOA between OFF and HAND.  Verify that the RPR relay is actuating.
For a series D unit post 2013, switching between OFF and BYPASS should actuate the RPR relay.
If still not able to locate the missing connection, contact the Drive Products Support group. Have the Q2C Code or FO number from the nameplate available.

If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:

Frequently Asked Questions - Schneider Electric (se.com)

If this FAQ did not solve your issue, you can call us at 1-888-778-2733 Option 2 and then 4 or e-mail us at drive.products.support@se.com to create a case with our Technical Support Team.

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