Busch-Jaeger Busch-Timer 6455 - Display During Mains Power Failure

Operating Instructions
Busch-Timer
®
Operation
Operating Instructions | 1473-1-8164
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5.10 Display during mains power failure
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The
illustration on the right shows an example of a display
with the mains voltage activated.
Fig. 21: Display during normal operation
The illustration on the right shows the display during a mains
voltage failure or the control element
unplugged. Prerequisite,
however, is that the timer was charged previously for several
hours.
The flashing plug symbol (see magnification) shows that the
mains voltage supply to the timer is deactivated. The time
continues to run in the background, but is
not displayed to
save energy.
If the timer is again supplied by the mains network within a
period of 14 hours, the current time will be shown in the
display.
Operation of the unplugged control element
If the control element (the timer) was unplugged for
programming, the menu level must first be called up with a
long press of the button.
Operation is then carried out as normal.
Fig. 22: Display during mains power failure
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