Emerson Liebert NXL series Operation And Maintenance Manual page 7

Liebert NXL UPS
Figure 24 Time remaining display ...................................................................................... 32
Figure 25 Battery cycle monitor........................................................................................... 33
Figure 26 Battery cycle monitor summary ......................................................................... 34
Figure 27 Battery cycle monitor-clear log ........................................................................ 34
Figure 28 Load on bypass (UPS not available)................................................................... 35
Figure 29 Load on bypass, UPS available........................................................................... 36
Figure 30 Load on UPS, bypass available.......................................................................... 36
Figure 31 Input power fail, load on battery ....................................................................... 37
Figure 32 Load on UPS, battery not available................................................................... 37
Figure 33 Emergency Power OFF........................................................................................ 38
Figure 34 Remote emergency power off............................................................................. 38
Figure 35 Start-up commands ............................................................................................. 42
Figure 36 Maintenance bypass transfers............................................................................ 43
Figure 37 Current-versus-time curves of overload capacity............................................ 46
Figure 38 Manual Start to Bypass....................................................................................... 50
Figure 39 Manual Start to Bypass (one or more modules)............................................... 50
Figure 40 Rectifier ON command....................................................................................... 51
Figure 41 Load on Bypass, UPS available.......................................................................... 51
Figure 42 Load on Bypass, BCB closed .............................................................................. 52
Figure 43 Load on UPS........................................................................................................ 52
Figure 44 Parallel System view........................................................................................... 53
Figure 45 Starting 1+N System Shutdown ........................................................................ 55
Figure 46 1+N System Shutdown confirm ........................................................................ 55
Figure 47 1+N System Shutdown....................................................................................... 56
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Table 1: UPS component service life .................................................................................... 60
Table 2 Battery voltage, nominal and float.......................................................................... 63
Table 3: Environmental specifications (250-300-400kVA UPS).......................................... 65
Table 4: Electrical Specifications (250-300-400kVA UPS) ................................................... 66
Table 5: Specifications (800kVA UPS).................................................................................. 68
Table 6: Liebert NXL alarm and status messages ............................................................... 70
Page vii
Operation and Maintenance Manual
Tables Index Tables Index Tables Index Tables Index
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250-300-400-800kVA
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