IV404E Rev.000 SIEL S.p.A.
Issue date: 2017-06-05 Pag. 77 di 90 + FR
Procedure b)
The by-pass line is outside the acceptance field; the following message is seen on
the display panel:
BAD BYPASS VOLTAGE or SWBY OFF
1.
open all the switches on the device (SWIN, SWOUT, SWBY and the battery cabinet
disconnectors/fuses). The control panel will remain off.
2.
before closing switches SWMB and connecting the loads, ensure that both the frequency and
voltage of the supply line are sufficient to power the connected loads.
N.B.: After carrying out the operations indicated above, personnel must wait around ten minutes
for the capacitors to discharge before working on the inside of the SAFEPOWER EVO HFT.
After the maintenance operations have finished, restart the UPS by following the instructions in the section
on START-UP PROCEDURE (see page 69) and then open disconnector SWMB (if closed).
The SAFEPOWER EVO HFT will return to NORMAL OPERATION.
Insertion and removal with UPSs operating (hot swap)
The hot insertion and removal of the UPS can only take place if the system is configured with the
RJ45
female/RJ45 female
shielded adaptor cable
(as shown in the figures below).
The hot insertion and removal of the UPS makes technical support easier and improves the reliability of the
system.
With this procedure it is not necessary to shut down all the UPSs in order to add or remove a unit.
Hot insertion and removal can only be done on systems comprising UPSs with the following characteristics:
The UPS system must be prearranged with a distribution panel (for power connections)
The UPS system must be prearranged with a RJ45 female/RJ45 female shielded adaptor cable (not
provided with the UPS)
.
All the UPSs in the system must have the same firmware version.
