LEGRAND KEOR HPE 60 kVA Operating Manual page 1266

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 [ ] 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.
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.
 REDUNDANT+x 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, "REDUNDANT+2" means that
only one of the UPS units is sufficient to feed the load.
UPS user manual
Manuel de l'utilisateur de l'ASI
PARALLEL
1-[ M ] 2- S 3- S
PARALLEL
1- S 2- M 3- [ S ]
PARALLEL
1- S 2- M 3- [ S ]
PARALLEL
REDUNDANT+x
Utilizzo dell'UPS
4- S
4- ?
. . . .
OMW07104 REV.A 41