Procedure For Cable Connections; Table 5-3 Maximum Permitted Fault Current - Toshiba G2020 Series Installation And Operation Manual

D) External Battery Supply
Please refer to the following when installing and maintaining batteries:
1. The customer shall refer to the battery manufacturer's installation manual for battery installation
!
2. The maximum permitted fault current from the remote battery supply and the DC voltage rating of
NOTE
5.3

PROCEDURE FOR CABLE CONNECTIONS

1. Confirm the capacity of the UPS being installed. Identify the input/output power
Terminal blocks accordingly as shown in the Figure 5-1 and Figure 5-2.
2. Connect the internal control wire and power wire.
(1) Control wire Inter-connect
1. CB2 UVR to terminal TN1-1, 2 of external I/F PCB IOAU-09.
UVR is required for proper operation of system. If the UVR is not present or it is not properly
installed, the system warranty is voided. If you encounter this condition, stop and do not
continue with start-up. (See Figure 4-20 and Figure 5-4 for connection.)
CAUTION
2. CB2 ON Auxiliary to terminal TN1-3, 4 of external I/F PCB IOAU-09.
(2) Power wire (AC input, Bypass input, AC output) Inter-connect
a.) From user's distribution panel
1. X1 (A-phase) to A bus bar in UPS
2. X2 (B-phase) to B bus bar in UPS
3. X3 (C-phase) to C bus bar in UPS
b.) DC Input to UPS
1.
2.
!
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
G2020 Series UPS Installation and Operation Manual – 94861-004
and maintenance instructions.
the battery supply over-current protective device are shown in Table 5-3.

Table 5-3 Maximum Permitted Fault Current

UPS Capacity
(kVA)
500
750
Positive cable to BP bus bar in UPS
Negative cable to BN bus bar in UPS
DC Voltage Maximum Permitted
Rating (V) Fault Current (A)
480
480
25,000
25,000
39