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31
3. Installation and Wiring
Mains Primary input Line Output
Bypass Secondary/Bypass input line (optional) Vout-L1: Output Phase L1
Vin-L1: Primary input Phase L1 Vout-L2: Output Phase L2
Vin-L2: Primary input Phase L2 Vout-L3: Output Phase L3
Vin-L3: Primary input Phase L3 Vout-N: Output Neutral
Vin-N: Input Neutral for primary and secondary input PE: Grounding
BPS-L1: Secondary input Phase L1 BAT+: Positive terminal of the batteries string
BPS-L2: Secondary input Phase L2 BATN: Battery Center Tap N
BPS-L3: Secondary input Phase L3 BAT-: Negative terminal of the batteries string
WARNING: In the case of dual input operation, ensure the copper wire between each input line has
been removed. The AC input and the AC bypass supplies must be referenced to the same neutral
point.
Choose the appropriate power cable (refer to Table 3.1). The diameter of the connection terminal of the cable should be
greater than or equal to that of the connection poles.
Figure 3-16: Input and Output Connections
WARNING!
If the load equipment is not ready to accept power upon the arrival of the commissioning engineer,
then ensure that the system output cables are safely isolated at their ends.
Connect the safety earth and any necessary bonding earth cables to the copper earth screw located
ontheooroftheequipmentbelowthepowerconnections.AllcabinetsintheUPSmustbe
grounded properly.
CAUTION!
Installation and wiring must be performed in accordance with local codes/regulations and installed
usingthefollowinginstructionsbyaqualiedelectricalservicetechnicianonly.
Load
UPS
Input L1 (A)
Output L1 (A)
Input L2 (B)
Output L2 (B)
Input L3 (C)
Output L3 (C)
Input N
Output N
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