APC MGE 6739380EN/JC User Manual download pdf (Page 41)

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.

Measurement system

Single-unit or modular UPS

Frequency converter

Static Switch Cubicle

The "Monitor" system displays a

number of input and output

measurements at different points in the

system.

◗ Mains 1

◗◗ phase-to-phase voltages,

◗◗ currents of the three phases,

◗◗ frequency;

◗ Mains 2

◗◗ phase-to-neutral voltage,

◗◗ phase-to-phase voltages,

◗◗ frequency;

◗ battery

◗◗ voltage,

◗◗ charge or discharge current,

◗◗ remaining battery time (calculated for

each UPS);

◗ inverter output

◗◗ phase-to-neutral voltage,

◗◗ phase-to-phase voltages,

◗◗ currents of the three phases,

◗◗ frequency,

◗◗ active and apparent power,

◗◗ ratio peak current / rated current rms;

◗ total load

◗◗ phase-to-neutral voltage,

◗◗ phase-to-phase voltages,

◗◗ currents of the three phases,

◗◗ frequency,

◗◗ active and apparent power;

◗ option

◗◗ 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

"Monitor" alphanumeric display (cont.)

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 49 50

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