LEGRAND Megaline Rack Mode D'emploi Pour L'utilisateur page 43

ATTENTION
If the PLL function is disabled, the automatic by-pass function is also disabled.
Should the variation in input frequency be above the set range, the UPS will inhibit the PLL function and release
the output and input lock. When the range returns within the set threshold, the PLL function will be reinstated
automatically.
By-pass
Bypass Enable
Forced mode
ð
DIP Speed
Off-line mode
Load Wait Mode
NB: Load Waiting without mains power.
In "Load Waiting" mode, the UPS will switch the by-pass on when the load is below the set threshold. Should there be no
mains power, the UPS will switch off and only switch on again when mains power is restored.
ATTENTION!
Programming priority is as follows:
Operational
function
FORCED MODE
OFF-LINE MODE
OFF-LINE MODE
LOAD WAITING MODE
AUTOMATIC MODE
BY-PASS DISABLED
X: either setting (ENABLED or DISABLED)
If enabled, the UPS manages by-pass intervention
automatically.
Bypass Enable
If disabled, the UPS will never switchover to by-pass
operation. The UPS will switch off in cases of lengthy
overload.
Forced mode
If enabled, the UPS enters permanent by-pass operation.
This is to alter the sensitivity of the automatic intervention
by the by-pass (when forced mode is disabled)
SLOW: for loads that are not sensitive to dips in voltage
DIP Speed
or micro breaks but that cause frequent peaks.
STANDARD: normal use
FAST: loads sensitive to micro breaks
If enabled, the by-pass operates as follows:
- When mains power is present, the UPS runs
Off-line mode
permanently in by-pass mode
- Should mains power fail, the UPS enters battery mode.
ENABLE: switches the function on or off
If enabled, the by-pass enters operation when the load is
below the threshold set for "Minimum load threshold"
Load Wait Mode
Above this threshold, the by-pass stops working.
Minimum load threshold: to set the value for the load
for the switching on and off function (refer to NB: Load
Waiting without mains power).
Enable Forced
By-pass Mode
ENABLED ENABLED
ENABLED DISABLED
ENABLED DISABLED
ENABLED DISABLED
ENABLED DISABLED
DISABLED X
Megaline Rack
Off-line Load
mode Waiting
X X
ENABLED ENABLED
ENABLED DISABLED
DISABLED ENABLED
DISABLED DISABLED
X X
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