COVER serii NHS – User Manual
COMEX S.A.
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4. User's manual for the power supply
This chapter contains detailed instructions on how to turn the power supply on and off, as well as
switching between the modes described in previous chapters.
All control keys and the LCD panel used to switch between the modes described below are described in
detail in Chapter 5.
The acoustic signaling may appear during the following procedures. This alarm can be silenced at any
time by pressing "Mute" on the LCD panel.
4.1. Power connectors
The UPS can be switched on or off from the power supply by means of connectors mounted inside the
power supply and accessible after opening the front door. The appearance of the power supply is shown
below, which is equipped with 4 connectors - rectifier input disconnector (Q1), bypass input disconnector
(Q2), output disconnector (Q4) and service Bypass switch (Q3).
Figure 4-1 Arrangement of power switches in the power supply