Effekta PEGASUS II 10 KVA, Руководство по эксплуатации

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UPS user manual
Rev.A 05/15/2012 91
7.1.3 Communication bus monitoring
PARALLEL
1-[ M
]
2-
S
3- S 4- S
The second line of this menu gives a general indication regarding the communication
between the UPS units composing the system.

The numbers represent the single UPS units.

The letters M and S stand for MASTER and SLAVE respectively.

The brackets [ ] around a letter indicate that we are working on that specific UPS
unit.

A question mark next to a number indicates that that UPS unit is not communicating
on the data bus.
Let us assume to have the following situation:

system composed of 4 UPS units;

UPS2 is currently the MASTER UPS;

we are checking the data communication on UPS3;

UPS4 is not communicating.
The menu will be as shown below.
PARALLEL
1- S 2-
M
3- [
S ]
4- ?
In case there are more than four paralleled devices, the menu will be as follows.
PARALLEL
1- S 2-
M
3- [
S ]
. . . .
The dots indicate the presence of a further menu which shows the status of the other UPS
units in the system.
7.1.4 Parallel type
PARALLEL
REx
The string on the second line may have tw
o values, “POWER” or “REx”.

POWER means that the parallel system is so set as to require the presence of all the
UPS units to feed the load.

REx means that the system is redundant and the redundancy index is
indicated by number “X”. For example, in a system composed of 3 UPS units,
“RE2” means that only one of the UPS units is sufficient to feed the load.