6 Single UPS Operation Introduction
This chapter introduces the operating precautions and routine operating methods of UPS single module in detail. For the
operating precautions and routine operating methods of UPS parallel system, refer to Parallel System and LBS System .
6.1 Brief Introduction
6.1.1 Precautions
IM PO R T A N T ! The user can conduct p erm itted operations only after the authorized eng ineer carries
out the first power on and test.
W A RN IN G!
1. No op erator-serviceable parts are located behind covers that require a tool for their
rem oval. O nly qualified service personnel are auth orized to rem ove such covers.
2. A ny operation on the term inals shall be p erform ed after 10 m inutes of U PS power-off and
after verification of non-hazardou s voltage.
1. For the operation keys and TOUCHSCREEN related operating steps, refer to Operator Control and Display Panel
.
2. During operation, the buzzer alarm may occur at any time. Silence the audible alarm through the touchscreen.
3. When UPS uses traditional lead-acid battery, the system provides boost charge optional function. If the lead-acid
battery is used, when the mains returns after an extended mains failure, the charging voltage of the battery will
be higher than the normal charging voltage, this is normal, and the charging voltage of the battery will return to
normal value after a few hours' charging.
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Vertiv™ Liebert® EXM2 UPS User Manual