Chloride LP061XHR, User Instruction Manual

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Operating the Device
13 Chloride Linear Plus Series Rack-mount UPS User Instruction Manual
Auxiliary Backfeed
Protection
To support protection against UPS backfeeding logic is integrated into Linear Plus Rack-mount.
Using backfeed protection
On customers side an additional magnetic contactor (MC) may be provided. The magnetic contactor must
be able to carry the UPS input current (see Table 4, “Electrical data Linear Plus Rack-mount 6 kVA/
10 kVA,” on page 8).
The MC has to be installed in the common input supply path. Cabling of the backfeed terminals contains
a jumper and two cables to the optional magnetic contactor.
Not using backfeed protection
For cabling the backfeed terminal board, please follow Fig. 6.
The factory setting of the backfeed terminal board, located on the UPS rear side, is shown there .
Fig. 6: Backfeed terminal board, factory setting
Operation
If bypass thyristor is shorted (short circuit) and UPS runs in double conversion mode (online) the
following steps follow:
• the backfeed detection circuit activates, backfeed relay opens.
• Press the “o” button to acknowledge the fault.
Reset
To reset the backfeed logic the UPS input circuit breaker/battery circuit breaker must be switched “OFF”
for 10 seconds
Operating the
Device
Block diagram Linear Plus Rack-mount
Linear Plus Rack-mount 6 kVA and 10 kVA consists of the following main components
• mains supply
• input switch
• rectifier/booster, inverter and charger
• electronic bypass
• paralleling contactor
• RPO hardwired
• backfeed protection logic
• Battery racks are external.
P i n s
M a i n s 2 / L
M a i n s 2 / N
M C / c o i l , o u t
M C / c o i l , i n
M a i n s 2 / N , s e n s o r
Normal and Safe
Operating