34006452EN/AC - Page 51
"Monitor" alphanumeric display
Static Switch Cubicle
9.6 Voltage measurements
Display of voltage measurements
These measurements may be accessed in two manners:
– pressing the "V" button displays the series of screens in the figure opposite;
– in "Monitor" multi-cubicle mode, pressing the ">" button when the screen already displays the voltage measurements
of a cubicle.
The system shifts to the voltage measurements of the next cubicle.
Note:
– Mains 2 measurements are not displayed on converters and parallel UPS with SSC;
– Mains 1 and inverter output measurements are not displayed on Static Switch Cubicles.
Caution:
For installations comprising a number of modular UPSs connected in parallel, the absence of load (UPS output) voltage
indicated on a display is only valid if it also indicated on the displays of all the other parallel-connected UPSs. Before carrying
out any work on a UPS, always check the absence of voltage using a method complying with applicable safety rules for work
on electrical equipment.
Direct access to the function by pressing the "V" button.
Mains 1 input phase-to-phase voltages in V rms (RC input).
Mains 2 input phase-to-neutral voltage in V rms.
Mains 2 input phase-to-phase voltages in V rms.
Inverter output phase-to-neutral voltage in V rms.
Inverter output phase-to-phase voltages in V rms.
Load phase-to-neutral voltage in V rms.
Load phase-to-phase voltages in V rms.
RCIB line(s)
load
mains 2
Q5N
Q3BP
Q4S
mains 2
U - F
load
U - I - F - P
K2S
MNS.1
V RMS
MNS.2
V RMS
U12 U23 U31
V1 V2 V3
MNS.2
V RMS
U12 U23 U31
INV.
V RMS
V1 V2 V3
U12 U23 U31
INV.
V RMS
LOAD
V RMS
V1 V2 V3
U12 U23 U31
LOAD
V RMS
V
V
V
V
V
V
V
V