Vertiv Liebert APM Plus - Single UPS Operation Introduction; 6.1 Brief Introduction

6 Single UPS Operation Introduction
This chapter introduces the operating precautions and routine operating methods of single UPS module in detail. For the
operating precautions and routine operating methods of UPS parallel system, refer to Parallel System and LBS System for
details.
6.1 Brief Introduction
6.1.1 Precautions
IM PO R T A N T ! The user can conduct relative operation on ly after the authorized en gin eer carries out
the first pow er on and test.
W ARN ING ! H azardou s m ains and/or battery vo ltage
N o op erator-serviceable p arts are located behind covers that require a tool for their rem oval.
O nly qualified service personnel are authorized to rem ove such covers.
Any operation on the term inals shall be perform ed after 10 m inutes of UP S pow er-off and
after verification of non-hazard ous voltage.
1. For the control keys and touch screen related to all the operating steps, refer to Operator Control and Display
Panel.
2. During operation, the buzzer alarm may occur at any time. Press SILENCE ON/OFF key to silence the audible
alarm.
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' of charging.
6 Single UPS Operation Introduction
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Vertiv™ Liebert® APM Plus User Manual