Toshiba G2020 Series, Installation And Operation Manual

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40 G2020 Series UPS Installation and Operation Manual
– 94861-004
3. Connect the grounding conductor from the input service entrance to
the UPS Ground Bar (E).
4. Two (2) sources feeding the UPS:
(1) Connect the AC input power cables from the input service entrance to the AC input power terminals, identified
as A, B, C in Figure 5-1 and Figure 5-2. Input cables must be sized for an ampere rating larger than the
maximum input drawn by the converter. (Refer to equipment nameplate for current ratings.) Confirm that an
external bypass input circuit breaker (MCCB) is installed (refer to WARNING 4, page 10). Connect the
bypass input power cables from the input service entrance to the bypass input power terminals, identified as
A40, B40 and C40 in Figure 5-1 and Figure 5-2. Bypass input cables must be sized for an ampere rating
larger than the maximum output current capacity of the UPS. Refer to Table 5-4 for recommended cable
sizes.
(2) Connect the external signal terminal block as desired. Refer to Section 4.4 and Figure 4-19 thru Figure 4-22
for functional description. 14 AWG (2mm
2
), or less, shielded conductor is recommended.
5. One (1) source feeding the UPS:
(1) Confirm that an external input circuit breaker sized to protect both the AC input and the bypass line is installed.
(Refer to equipment nameplate for current ratings.) Connect the bypass input power cables from the input
service entrance to the bypass input power terminals, identified as A40, B40 and C40 in Figure 5-1 and
Figure 5-2. Input cables must be sized for an ampere rating larger than the maximum current capacity of the
UPS. Refer to Table 5-4 for recommended cable sizes.
(2) Using adequately sized conductors and referring to the appropriate figure identified in Figure 5-1 and Figure
5-2, connect jumper bypass terminals A40, B40, C40 to AC input power terminals A, B, C as identified in
Figure 5-1 and Figure 5-2.
(3) Connect the external signal terminal block as desired. Refer to Section 4.4 and Figure 4-19 thru Figure 4-22
for functional description. 14 AWG (2mm
2
), or less, shielded conductor is recommended.
1. Confirm that all UPS internal contactors (breakers) "CB1", "CB2", and "CB3" are open
before energizing UPS.
2. UPS power terminals are supplied with stud type fittings.
It is recommended that compression lugs be used to fasten all input/output power cables.
REQUIRED
!
NOTE