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24 - E-51028230XT/BG
◗ bypass AC source 2
◗ ◗ phase-to-neutral voltage,
◗ ◗ phase-to-phase voltages,
◗ ◗ frequency,
◗ ◗ currents of the three phases;
◗ battery 3
◗ ◗ voltage;
◗ ◗ charge or discharge current;
◗ ◗ remaining battery time (for the UPS
unit concerned);
◗ ◗ battery temperature;
◗ inverter output 4
◗ ◗ frequency;
Control-panel display (cont.)
Measurement system
The display 23 may be used to read a
number of input and output
measurements made at different points
in the system. See, in the Appendix,
figure 23.
◗ normal AC source 1
◗◗ phase-to-phase voltages,
◗ ◗ currents of the three phases,
◗◗ frequency;
◗ total load 6
◗ ◗ phase-to-neutral voltage,
◗ ◗ phase-to-phase voltages,
◗ ◗ currents of the three phases,
◗◗ frequency,
◗◗ active and apparent power.
Note:
Frequency converters without batteries
are not concerned by the battery
measurements. The displayed battery
voltage corresponds to the DC voltage
at the rectifier/charger output.
Bypass AC source
2 measurements
are not displayed on frequency
converters
Voltage measurements
These measurements may be
accessed by pressing the "V" key 1
4 .
The following data is displayed.
Note:
M1: normal AC source
M2: bypass AC source
RMS M1 M2 LOAD RMS M2 LOAD
U12 ---- ---- ---- V1 ---- ----
U23 ---- ---- ---- V2 ---- ----
U31 ---- ---- ---- V3 ---- ----
Current measurements
These measurements may be
accessed by pressing the "A" key 1
5 .
The following data is displayed.
Note:
CF: crest factor
RMS M1 M2 LOAD FC-LOAD I-LOAD/I-NOM
I1 ---- ---- ---- -.-- ---- %
I2 ---- ---- ---- -.-- ---- %
I3 ---- ---- ---- -.-- ---- %
LOAD KW KVA PL/PN = --- % FREQ.HZ
P1 ---- ---- M1 --.-
P2 ---- ---- M2 --.-
P3 ---- ---- FP.LOAD = -.- INV --.-
Fig. 23
1
2
Q1
Q5N
QF1
U - V - I - F
U - I - F
U - I
F
U - V - I - F - P
AB
C
D
Q4S
6431
2
Power and frequency
measurements
These measurements may be
accessed by pressing the "W.HZ" key
1
6 . The following data is displayed.
Note:
PF: power factor