Return to float voltage
Security pushbutton
Inverter desync/sync
Forced bypass to inverter
Forced inverter to bypass
CAUTION:
(pushbutton #2) This pushbutton can be used during a battery charge cycle to force
the rectifier/battery charger back to the float voltage level.
(key) This pushbutton must be pressed simultaneously with any of the following
three pushbuttons. This helps guard against inadvertent transfer of the load with
interruption.
(pushbutton #3) Pressing and holding the "security key" while pressing this
pushbutton forces the inverter output to desynchronize or synchronize to the bypass
AC input (mains 2) source.
(pushbutton #4) Pressing and holding the "security key" while pressing this
pushbutton forces the transfer of the load to the inverter output when the bypass is
out of tolerance. The inverter must be on; press the "inverter on" pushbutton on the
UPS front panel if necessary. The load will experience a 0.8 second interruption.
Refer to section 2.12, Forced Transfers.
(pushbutton #5) Pressing and holding the "security key" while pressing this
pushbutton stops the inverter and transfers the load to the bypass AC input (mains
2) even if the bypass is out of tolerance. The load will experience a 0.8 second inter-
ruption. Refer to section 2.12, Forced Transfers.
Using the forced transfer functions will cause the load to
experience an interruption for a minimum of 0.8 seconds. Be
certain the load can tolerate this interruption; see section
2.12 Forced Transfers.
Introduction
Users Manual
page 1 — 13
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