Liebert 610 - Manual (Page 39)

Operation
33
Maximum Auto-Retransfer Attempts
When a UPS output overload condition exceeds a pre-programmed current-versus-time window, the
UPS automatically transfers the critical load to the bypass line. After the overload condition has been
corrected, the UPS attempts to automatically retransfer the critical load to the UPS output (unless
zero attempts is selected). The Maximum Auto-Retransfer Attempts limits the number of times
(0 to 5) that the UPS attempts to retransfer the load back to the UPS within a one hour time period.
If more than the selected number of overloads occurs during one hour, the critical load remains on the
bypass line and must be manually retransferred to the UPS system. Note that you should determine
the cause of any overload condition.
To change the Maximum Auto-Retransfer Attempts parameter, do the following:
1. From the System Configuration Screen, press the Up or Down pad to highlight Maximum Auto-
Retransfer Attempts.
2. Press the Select pad. The screen below will appear.
3. Press the Up pad to increase the value or the Down pad to decrease it.
Figure 21 Maximum auto-retransfer attempts screen
NOTE
Note that automatic retransfers are initiated only if the critical load was transferred to the
bypass line because of a system overload. If an automatic transfer to bypass occurred for any
other reason, an automatic retransfer will not be initiated. Refer to 3.5.3 - Automatic
Retransfers to UPS.
MAX AUTO-REXFER ATTEMPTS
UPPER LIMIT
5
LOWER INPUT
0
INCREASE
DECREASE
EXIT
UP :
DOWN :
SELECT :
VALUE
3
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