MITSUBISHI ELECTRIC 9900B SERIES UPS
MITSUBISHI
ELECTRIC
9900B SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
3-2
C) Space requirement for routine maintenance:
Allow for the following space at the time of installation.
Front
1075 mm (43 inches)
Sides
0.0 mm (0 inch)
Back side
0.0 mm (0 inch)
Top side
500 mm (20 inches)
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 and maintenance instructions.
2. The maximum permitted fault current from the remote battery supply and the DC
voltage rating of the battery supply over-current protective device, as shown in
Table 3.3.
Table 3.3
Maximum Permitted Fault Current
UPS Capacity
(kVA)
DC Voltage
Rating (V)
Maximum Fault
Current Permitted (A)
300
480
25,000
500
480
25,000
750
480
25,000
3.3 PROCEDURE FOR CABLE CONNECTIONS
1. Confirm the capacity of the UPS being installed. Identify the input/output power
terminal blocks as shown in the appropriate Figures 3.1 through 3.3.
2. Connect the internal control wire and power wire.
(1) Control wire interconnections
a) CB2 UVT to terminal TN1-1, 2 of external I/F PCB IOAU-09.
b) CB2 ON Auxiliary to terminal TN1- 3, 4 of external I/F PCB IOAU-09.
(2) Power wire (AC input, Bypass input, AC output) interconnections
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. Positive cable to BP bus bar in UPS
2. Negative cable to BN bus bar in UPS
Summary of Contents for 9900B Series
Page 2: ...Preface Revision 4 06 09 2020 U ENM00030 ...
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