APC 6739380EN/JC User Manual

6739380EN/JC - 

Page 41

UPS IMPOSED

TRANSFER DISABLE !

Cannot transfer the load to Main 2 due
to:

◗

transfer conditions not satisfied;

◗

UPS operating on an independent

frequency;

◗

UPS operating with current limitation;

◗

internal fault;

◗

auxiliary control inhibits switching to

Mains 2.

The "Monitor" system displays a
number of input and output
measurements at different points in the
system.

◗

◗◗

phase-to-phase voltages,

◗◗

currents of the three phases,

◗◗

frequency;

◗

◗◗

phase-to-neutral voltage,

◗◗

phase-to-phase voltages,

◗◗

frequency;

◗

◗◗

voltage,

◗◗

charge or discharge current,

◗◗

remaining battery time (calculated for

each UPS);

◗

◗◗

phase-to-neutral voltage,

◗◗

phase-to-phase voltages,

◗◗

currents of the three phases,

◗◗

frequency,

◗◗

active and apparent power,

◗◗

ratio peak current / rated current rms;

◗

◗◗

phase-to-neutral voltage,

◗◗

phase-to-phase voltages,

◗◗

currents of the three phases,

◗◗

frequency,

◗◗

active and apparent power;

◗

◗◗

battery temperature.

Note:
Frequency converters without batteries
are not concerned by the battery
measurements. The displayed battery
voltage corresponds to the DC voltage
at the RC output.

mains 1

load

mains 2

Q1

Q5N

QF1

Q3BP

Q4S

K3N

inverter
I - P

mains 2
U - F

charger
U  - I - F

battery
U - I

inverter
U - F

load
U - I - F - P

mains 1

common
load

Q1

Q5N

QF1

K3N

inverter
I - P

charger
U  - I - F

battery
U - I

inverter
U - F

load
U - I - F - P

RCIB line(s)

load

mains 2

Q5N

Q3BP

Q4S

mains 2
U - F

load
U - I - F - P

K2S

 (cont.)