Toshiba 431A operation manual Join the 431M Cabinet with the UPS

13.6Join the 431M Cabinet with the UPS

The 431M is equipped with four 16 mm mating holes located on the front and back of the left and right sides of the cabinet.

DANGER: HAZARDOUS VOLTAGES MAY EXIST.

Verify all power is removed from the UPS and power cables prior connecting the power cables to the Auxiliary Cabinet terminals, Maintenance Bypass Switch terminals, or UPS terminals.

1.Remove the top and bottom 431M Cabinet Front panels.

2.Remove the cable access plate at the lower-front right side of the 431M Cabinet. (See Figure 13-5)

3.Remove the cable access plate at the lower-front left side of the UPS Cabinet.

4.Position the 431M cabinet to the left of and adjacent to the UPS Cabinet.

5.Place the 431M base over the floor anchor bolts (if available). (Figure 13.-4)

6.Align the four 14 mm bolt holes on the right side of the 431M Cabinet with the matching four 16 mm bolt holes on the left side of the UPS Cabinet.

7.Bolt the cabinets together with four 3/8-16 in. x 2 in. long bolts.

8.Secure 431M base anchor bolts.

9.Select the power cables per Tables 13-1, 13-2, and 13-3.

10.Run the power cables from UPS power terminals TB1 to 431M Cabinet per Figure 12-6.

11.Connect 431M Utility Bus Terminals (Figure 13-2 #9A) to the Utility Power

12.Connect 431M Load Bus Terminals (Figure 13.2 #9D) per Figure 6.

13.Connect 431M UPS IN Bus Terminals (Figure 13-2 #9B) per Figure 6.

14.Connect 431M UPS OUT Bus Terminals (Figure 13-2 #9C) per Figure 6.

15.Connect the Neutral cables to the Neutral Bus stub, Figure 13-2 #16 and Figure 12-6.

16.Connect the Mechanical Interlock Solenoid power plug, TB1 P-1(Figure 13-2 #18) to the UPS 24V power terminal jack J1 in the UPS .

17.Connect the Ground wires (#2 AWG or better) to the ground bus, Figure 13-2 #17.

18.Verify the connections are correct.

19.Install the 431M top and bottom Dead Fronts.

Utility Power

L1

L2

L3

N

N

L1

L2

L3

Load

431M

A		UPSIN	A
C UTILITYIN			C
B			B
A	LOADIN	OUTUPS	A
B			B
C			C

NEUTRAL

N N N N

4300 Series

UPS

H1	IN)
H2
	(UPS
H3
N		TB1
N	OUT)
L1
L2	(UPS
L3
+
-

Critical

TB1								24V DC PCB
1	2	3	4	5	6	7	8

P1 J1 CNEPO-2 CNEPO-1

Figure 13-6 - Power Cabling Between Auxiliary Cabinet, MBS, and UPS

4300 Series Ancillary Cabinets Installation and Operation Manual 57