Vertiv | Liebert EXS 80kVA UPS | User Manual
53
UPS Operating Instructions
Chapter 5: UPS Operating Instructions
This chapter introduces the operating precautions and routine operating methods of UPS in detail.
5.1. Brief Introduction
5.1.1. Precautions
Important
The user can conduct relative operation only after the Vertiv engineer carries out the first power on and test.
Warning: Hazardous Mains and/or Battery Voltage
1.
No operator-serviceable parts are located behind covers that require a tool for their removal. Only qualified service
personnel are authorized to remove such covers.
2.
The AC/DC input and output terminals of UPS have dangerous voltage at any time. If the cabinet is equipped with an
EMC filter, the filter may have dangerous voltage.
1.
For the operation keys and LCD related to all the operating steps, refer to
Chapter 4 Operator Control and
.
2.
During operation, the buzzer alarm may be activated, if so, you can select the
command of ‘Mute/Unmute
audible alarm’ via the Control page to silence the audible alarm.
3.
When UPS uses traditional lead-acid battery, the system offers boost charge optional function. If the lead-acid
battery is used, when the mains returns after prolonged 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 returns to
normal value after a few hours of charging.
5.1.2. Power Switch
Opening the front door of the UPS cabinet reveals the power switches, as shown in
Q1
: Rectifier input switch, which connects the UPS to the main circuit power.
Q2
: Bypass input switch, which connects the UPS to the bypass.
Q3
: Maintenance bypass switch (lockable), which supplies power to the load when UPS is being maintained.
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