Emerson 480V, 60HZ Auxiliary Dry Contact Cables, For startup procedure, 9.2 - UPS Startup

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Figure 18 Connecting system parallel control cables

1		2	UPS	3			4
Parallel Board		Parallel Board		Parallel Board		Parallel Board
X3	P5	X3	P5	X3	P5	X3		P5
	X4		X4		X4			X4
X2-2	X2-1	X2-2	X2-1	X2-2	X2-1	X2-2		X2-1
								Interconnecting
P2		P2		P2		P2		Cables
	P1		P1		P1			P1
X1-1 X1-2		X1-1 X1-2		X1-1 X1-2		X1-1 X1-2
P3	P4	P3	P4	P3	P4	P3		P4

Auxiliary Dry Contact Cables

The external output breaker of each UPS must have Normally Open auxiliary contacts. These con- tacts must be wired to connector X3 on the Parallel Logic Board (M3). See Figure 19.

Figure 19 Auxiliary dry contact cables for output breaker in multi-module system

2 X2 P2

1 X2 P1

T INA M T :X

X3

DBS

485- 485+

! CAUTION

The auxiliary control wire must be installed to ensure proper operation of the system.

NOTE

For startup procedure, 9.2 - UPS Startup.

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