Eltek Valere UNV-F 2.5 Manual de usuario descargar pdf (Pagina 71)

100

DC Controller

UPC4 Master

User Manual

Page 71/100

Estimation of the discharge current

Calculation (example):

Battery 50 Ah

Nominal capacity 95% (5.2)

, see section 6.4.6.

Capacity= 47,5 Ah

Example: 20A are withdrawn from the fully charged battery for more than one minute.

For the calculation of factor F the accordant curre

nt values are used.

%)5030(*5

%)50130(*20







4F

FIbIest *

4*20Iest

80Iest

Ah 46,166 80/3600* 60 - 3600 *Ah 47,5 

Estimation of the charge current

At charging the estimation is the other way round.

P= 50%

)30(*10

)130(*

pib







9 F





)100/arg(** yeEfficiencChFlIbIest 

Additional, parameter (2

8.5)

*9.9

(ChargeEfficiency) is introduced, because more energy is necessary to

charge a battery.

If the parameters (2

8.6)

*9.9

, (28.7)

*9.9

are under-run, in each case an event is generated.

6.10.5 SNMP*

(* requires 9.7), see section 6.4.4.

In this menu the SNMP relevant settings

are don

Parameter "Manager" (29.1)

*9.7

is a

possibility to restrict the SNMP access to

the UPC4. If an IP is configured, it is only

possible to get access to the UPC4 by this

PC and by all configured trap receivers via

SNMP. Whereupon the manager is the only

one with write authorisation.

If IP = "0.0.0.0", this f

unction is disabled.

If (29.5)

*9.7

is empty, an SNMP requiry to Sysdescription iso(1).org(3).dod(6).internet(1).mgmt(2).mib-

29.1

29.2

29.3

29.4

29.5

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Eltek Valere UNV-F 2.5 Manual de usuario Pagina 71

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