Communication Bus Monitoring; Parallel Type - LEGRAND KEOR HP Série Manuel De L'utilisateur

7.1.3 Communication bus monitoring

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 [
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.
In case there are more than four paralleled devices, the menu will be as follows.
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

The string on the second line may have two values, "POWER" or "REDUNDANT+x".
 POWER means that the parallel system is so set as to require the presence of all the
UPS units to feed the load.
36 OMD10074 REV. C
UPS user manual
Manuel de l'utilisateur de l'UPS
Utilizzo dell'UPS
PARALLEL
1-[ M 2-
] S
] around a letter indicate that we are working on that specific UPS
PARALLEL
1- S 2-
M
PARALLEL
1- S 2-
M
PARALLEL
REDUNDANT+x
3- S 4- S
3- [ 4- ?
S ]
3- [
. . . .
S ]