U.5.29
Date Code 20020501 User’s Guide SEL-421/SEL-421-1 Relay
Front-Panel Operations
Front-Panel Automatic Messages
For a status failure, the relay immediately displays the full-screen status alert
regardless of the present front-panel operating state. The relay displays no
further LCD screens until the status failure clears. Should an unlikely status
failure event occur, contact your local Technical Service Center or an SEL
factory representative (see Factory Assistance on page U.6.43 in the User’s
Guide).
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