Question

The DTC motor and cam will close the DTC N.O. contacts momentarily (approx. 5 seconds). How is the DFR kept energized when the DTC N.O. contacts open?

Answer 1

The DFR is kept energized when the DTC N.O. contacts open through a holding circuit, which includes other contacts like the DFR N.O. contacts.

Step-by-step explanation:

When the DTC N.O. contacts open, the DFR is kept energized through a holding circuit. This holding circuit includes other contacts, such as the DFR N.O. contacts, which remain closed once the DFR is initially energized. These contacts bypass the DTC N.O. contacts and provide a continuous path for current flow, ensuring the DFR stays energized.