Toshiba G9000 Series Installation And Operation Manual page 52

!
After the completion of the input power cables connection:
With a phase rotation meter, check that the phase rotation of the AC Input power terminals A,
B and C as well as the Bypass Input power terminals A40, B40 and C40 are correct. The
proper phase rotation is clockwise A(R) → B(S) → C(T).
NOTE
i.) Connect the grounding conductor from the input service entrance to the UPS Ground Bar (E).
j.) 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 thru Figure 5-7. 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 5). 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 thru Figure 5-7. 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 for functional
description. 14 AWG (2mm
k.) 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
thru Figure 5-7. 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 thru Figure
5-7, connect jumper bypass terminals A40, B40, C40 to AC input power terminals A, B, C as identified in
Figure 5-1 thru Figure 5-7.
44
2
), or less, conductor is recommended.
G9000 Series UPS 300-750kVA Installation and Operation Manual – 61480-017
REQUIRED