38
Green Po
wer 2.0 600 k
VA
- Ref.: INMGP2601410-GB_12
•
Parallel connection enhances UPS system reliability, performance and power.
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Operating UPSs are connected to each other by a signal cable B (Fig. 9.1-1) which provides 25m distance
between UPSs and enables the external battery cabinet to be inserted next to each UPS. They are configured
differently depending on the position they are assigned; for this reason the units have a position label:
the “INTERNAL” label (used only on systems with three UPS) means that this unit must be positioned
between the two other cabinets.
•
The power supply of each UPS must be equipped with a protection device as shown in the table in §
4. 7
.
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The cross section and length of the input and output cables must be identical for all the units.
•
The phase rotation must be the same for each unit connected in parallel and also on any external manual
maintenance bypass line.
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Cables of the same length and cross section must be used for X1 and X2, same thing for Y1 and Y2.
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The length of the cables Y1 and Y2 must not exceed 25 meters (Fig. 9.1-1).
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If a differential switch is installed on the mains power switch, it must be inserted upstream from the distribution pan-
el; it must be a selective type and the trigger value must be 3A tempo by the number of UPS connected in parallel.
if other switchgear, switch or circuit breaker, are present downstream of the upS module (see fig. 9.1-1
point d), you must bring his contact position (q21) on the coupling cabinet in 13-14 of x101.2 (see § 7.7)
the opening and closing of the switch d should only be done only after stopping the unit upS green
power 2.0 upstream of this switch.
•
In order for units connected in a parallel configuration to operate correctly, control cables are required to ex
-
change data between both UPS units making up the parallel system. The cables in question are supplied with
Green Power 2.0 in case of standard parallel setting or are attached to the parallel kit in case of later upgrading
of the system.
parallel configuration must only be activated by SocoMec qualified personnel.
9. UPs Parallel confIGUraTIon
