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Replacement procedure
With the power supply output switch ON during normal operation (inverter output), you can switch to
maintenance mode to perform replacement for the operations described below.
(1) Press and hold the indicator selection switch (on the front panel of the UPS) for 10 seconds.
Power supply output switch
The status indicator shows ˝REP˝.
The beep sounds.
(2) The unit switches to bypass mode, enabling the battery unit to be replaced.
Disconnect the connectors of all cables connected to the rear of the battery unit.
After replacing the battery unit, make sure to reconnect all of the disconnected cables.
Make sure the battery unit’s built-in battery connector (in the front panel) is connected.
If commercial power is supplied to the battery unit, make sure the ˝charging˝ indicator on the battery
unit’s front panel is illuminated.
(3) When you finish connecting the battery, press and hold the indicator selection switch (on the front panel
of the UPS) for 10 seconds.
Maintenance mode is released and the unit returns to normal inverter operation.
The status indicator returns to its normal input voltage display (VI ***).
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Battery replacement is complete.
Caution: In this operating condition, the unit will not enter Battery Mode if a power failure occurs.
