46 User Manual 10H52192UM60 - Rev. 1 - 09/2011
Liebert NX Operating Instructions
Chapter 6 Operating Instructions
This chapter provides detailed instructions for UPS operating procedures.
The audible alarm may be activated at various points during these procedures. Press the SILENCE ON/OFF button to silence the
audible alarm at any time.
Warning: Hazardous mains and/or battery voltage present behind protective cover
The components that can only be accessed by opening the protective cover with tools may not be operated by the user. Only qualified
service personnel are authorized to remove such covers.
Note
It is inevitable that the batteries will lose charge during transportation and storage; before attempting to carry out an autonomy test,
ensure that the batteries are fully charged as this may take several hours. Block performance typically improves after a few
discharge/recharge cycles.
6.1 Power Switches (Behind the Front Door)
The UPS is fitted with the following power switches:
- an input switch for rectifier (mains) input (QS1)
- an input switch for bypass input (QS2)
- a maintenance switch (QS3)
- an output switch (QS4)
- two battery circuit breakers (QS6 for Batt + and QS7 for Batt -)
All these switches are shown in Figure 6-1, Errore. L'origine riferimento non è stata trovata. and Figure 6-2.
Figure 6-1Location of Maintenance Switch of 30 kVA UPS
Maintenance switch
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