Eltek Valere UNV-F 2.5 Manual de usuario descargar pdf (Pagina 74)

100

DC Controller

UPC4 Master

User Manual

Page 74/100

6.10.8 MMB*/Mains monitoring

MMB* (requires 2.9), see section 6.4.2.

In connection with an optional available

Mains Monitoring Board (MMB) the UPC4 is

able

to detect mains failure or phase break

down. The mains failure is available as

event and can also be used as source for

„PLD/LVD

“ function, see section 6.8.

By the use of mains monitoring boards the

voltag

es of each phase are measured.

The threshold values V< (32.1)

*2.9

and V>

(32.2)

*2.9

are related to the nominal voltage

of the inverters, which is set in the area

"System parameters

A mains failure is detected if these values

are exceeded/under-run, with inclusion of

the parameters

(32.3)

*2.9

, (32.4)

*2.9

, and

(32.5)

*2.9

The monitoring of single phases can be

enabled/disabled by parameter (32.6)

*2.9

The phases 1A to 3A belong to the MM

board A, the phases 1B to 3B belong to the

MM board B.

If an ext

ernal mains monitoring module is

used: The digital input which is connected

to the external mains monitoring module

can be defined by parameter (32.7).

32.1

32.2

32.5

32.4

32.3

32.6

32.7

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Eltek Valere UNV-F 2.5 Manual de usuario Pagina 74

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