Eltek Valere UNV-F 2.5 Manual de usuario descargar pdf (Pagina 18)

DC Controller

UPC4 Master

User Manual

Page 18/100

4.2.2 Rectifiers of the Flat-, Mini-, Micro-, and Powerpack group

The UPC4 supports all rectifiers of the Flat-, Mini-, Micro-, and Powerpack group at its second CAN bus

port "CAN 3 & CAN 4" (RJ45 connectors).

Compared to the PSR rectifiers (see section 4.2.1 Rectifiers of the PSR/PSS group

) the slots of the

xxpack rectifiers have no fixed CAN addresses. Therefore the log on procedure between UPC4 and

these types of rectifiers is different.

If a rectifier is plugged to a backplane slot, the rectifier logs automatically on to the UPC4 transmitting

its se

rial number. After it has logged on the rectifier is controlled by the UPC4. The communication

between UPC4 and rectifier takes place using the serial number.

(For details please see section 6.4.2 CAN Devices Cnt

4.2.3 Monitoring of load sharing of the rectifiers

With the assistance of this functionality it is possible to monitor the load utilization of each individual

rectifier (REC). For this a changeable threshold (in percent) has to be set at the menu item "System

parameters" (section 6.4.5).

The UPC calculates the percentages of the difference of the maximum current of a rectifier and the

mini

mum current of one rectifier compared to the maximum current of one rectifier.

If the settable percentaged value is exceeded, the

UPC generates the event "RECLoadDistrib".

For details please see "System parameters

" (section 6.4.5).

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Eltek Valere UNV-F 2.5 Manual de usuario Pagina 18