ABB 800xA Operation page 128

AC460 Subsystem Status Display
The descriptions for the three command push-buttons follows:
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RESET for UPGRADE
The RESET for UPGRADE push-button is used to reset a backup controller
and reboot into the "UPGRDE" state. The following restrictions apply for this
command:
– The RESET for UPGRADE command is used to reset backup controllers
only and cannot be invoked from a primary controller. This prevents
primary controllers from being reset by the user.
– The command is not actually sent until the CONFIRM push-button is
selected.
– The CANCEL push-button can be used to clear the RESET for
UPGRADE.
SWITCHOVER
The SWITCHOVER push-button is used to force the switchover of a primary
controller to a backup controller (that is loaded with a different version of
software). The following restrictions apply for this command:
– If the backup controller is not in the "UPGRDE" state, SWITCHOVER
cannot be selected. This prevents switchover from being attempted for
backup controllers that are not in the correct state.
– A five (5) second delay after selection of this push-button occurs before
other push-buttons can be selected. This prevents switchover of different
controllers in the same AC 460 subsystems from overlapping.
– The command is not actually sent until the CONFIRM push-button is
selected.
– The CANCEL push-button can be used to clear the fact that this push-
button was selected.
Section 6 Status Displays
3BUR002418-600 A