IV404E Rev.000 SIEL S.p.A.
Issue date: 2017-06-05 Pag. 79 di 90 + FR
Example of hot removal
With hot removal, it is not necessary to shut down all the UPSs of the system in order to remove one.
A)UPS parallel cable type RJ45
B) RJ45 female/RJ45 female
shielded adaptor cable
UPS
BYPASS CABLE
N.B.: if the UPS to be removed
has SW1 in the start position,
one of the other UPSs (UPS 1
or UPS2) must be in the start
position.
One UPS in the system must
have SW1 in the start
position and LED
Phase I Shut down the UPS (3) that is to be removed. Remove the signal cables of the UPS to be removed.
Phase II-III Connect the RJ45 female/RJ45 female shielded adaptor cable (not provided) between cables A.
Check that all the UPS are operating normally and that the system is sharing the output power.
UPS 3
A
UPS 1
A
UPS 2
A
I
II
III
B
UPS 1
UPS 2
UPS 3
UPS 1
UPS 2
