TOA Electronics FPS1000-32 Basic Connections for Operation FPS-T1U Rack, 19.2 On/Off control

FPS-T1U Instruction Manual

CHAPTER 19 BASIC CONNECTIONS FOR OPERATION FPS-T1U RACK

19.1 Connecting Single Load, Remote Sensing

Remote sensing is used in cases where the load regulation is important at the load terminals. Use twisted or shielded wires to minimize noise pick-up. If shielded wires are used, the shield should be connected to the ground at one point, either the power supply side or the load. The optimal point for the shield ground should be determined by experimentation. Refer to the power supply specifications for the maximum voltage drop allowed at the load wires.

FPS-T1U	+V
	+S

		FPS-1000 Module A						-S
								-V
								+V
		FPS-1000 Module B						+S
								-S
								-V
								+V
		FPS-1000 Module C
								+S
	ON/			ON/		ON/		-S
	OFF_1			OFF_1		OFF_1
	A			B		C		-V
J1(A)-3		J1(A)-12	J2(B)-3		J2(B)-12	J3(C)-3	J3(C)-12

Load line. Up to 1V drop.

	+V
J1-8	LOAD
J1-7
	-V
	+V
J2-8	LOAD
J2-7
	-V
	+V
J3-8	LOAD
J3-7
	-V
Sense lines	Load line.
Twisted pairs	Up to 1V drop.

Fig 19-1: Remote sensing, three load.

*In Local sense applications, the +/- sense have to be connected to the

+/-Local Sense terminals of the FPS-T1U prior to operating the FPS1000 units plugged in.

19.2 On/Off control

Fig 19-2 and Fig 19.3 shows typical connection for individual On/Off control of each installed FPS1000 unit.

ON/OFF Control_1

FPS-T1U

FPS-1000 Module A

FPS-1000 Module B

FPS-1000 Module C

J1(A)-12

ON OFF J1(A)-3 J2(B)-12

ON OFF J2(B)-3 J3(C)-12

ON OFF J3(C)-3

Fig 19-2

ON/OFF Control_2

FPS-T1U

FPS-1000 Module A

FPS-1000 Module B

FPS-1000 Module C

ON/ ON/ ON/ ON/ ON/ ON/

OFF OFF1 OFF OFF1 OFF OFF1 SLCT A SLCT B SLCT C

J1(A)-13 J1(A)-12 J2(B)-13 J2(B)-12 J3(C)-13 J3(C)-12

J1(A)-4

OFF ON J1(A)-3 J2(B)-4

OFF ON J2(B)-3 J3(C)-4

OFF ON J3(C)-3

Fig 19-3

Connection for negative logic: Closed: On Open: Off Factory default: ON/OFF Control_1

Connection for positive logic: Closed: Off Open: On

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