Multiple loads connection | TOA Electronics FPS1000-48, FPS1000-24

CHAPTER 12 BASIC CONNECTIONS FOR OPERATION FPS-S1U RACK

12.1 Connecting single load, Local sensing

Local sensing is suitable for applications where load regulation is not critical. Fig 12-1 shows recommended load and sensing connections for applications with a single load.

FPS-S1U				+V		+V
FPS-S1U				+S
				+S	13
					13	LOAD
						LOAD
	ON/	ON/	ON/	-S	22
SIGNAL	ON/	ON/	ON/	-S
SIGNAL	OFF	OFF	OFF	-V
RTN	A	B	C	-V		-V
11	5	15	25

Fig 12-1: single load connection, local sensing

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

+/-V terminals of the FPS-S1U prior to operating the FPS1000 units plugged in.

12.2 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.

+V

FPS-S1U+S

SIGNAL		ON/		ON/		ON/		-S
		OFF		OFF		OFF		-V
RET		A		B		C
			5		15
	11						25

Load line. Up to 1V drop.

	+V
13	*
13	LOAD
22
	-V
Sense lines	Load line.
Twisted pairs	Up to 1V drop.

Fig 12-2: Remote sensing, single load.

12.3 Multiple loads connection

If remotely located output distribution terminals are used, the power supply output terminals should be connected to the distribution terminals by a pair of twisted or shielded wires. Each load should be separately connected to the remote distribution terminals (see Fig 12-3). If remote sensing is required, the sensing wires should be connected to the distribution terminals or at the most critical load.

+V

				+V
FPS-S1U				+S	13
					13
	ON/ ON/ ON/			-S	22
SIGNAL	ON/ ON/ ON/			-S
SIGNAL	OFF	OFF	OFF	-V
RET	A	B	C	-V
11	5	15	25		-V
					-V

+

-LOAD # 1

+

-LOAD # 2

+

-LOAD # 3

Fig 12-3: Multiple loads connection with distribution terminal

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Image 35

TOA Electronics FPS1000-48, FPS1000-24, FPS1000-12 Basic Connections for Operation FPS-S1U Rack, Multiple loads connection

Contents

FPS Series 1000W In 1U FPS1000 Series Table of Contents Disclaimer WarrantyLimitation of Warranty Warranty Service FPS1000 Power Supply and FPS-S1U Rack Safety Instructions Safety Symbols FPS1000 Series Specifications Outline Drawings FPS 1000 Series Outline Drawings FPS 1000/P Series Outline Drawings FPS1000 Power Supply Installation Current Carrying Capacity Connecting the LoadLoad Wiring Making the load connections Noise and Impedance EffectsInductive loads Repackaging for Shipment Input/Output connector information Functions and Features FPS10004.7KΩ Dcok signalACFail signal Remote On/Off control Remote Sensing Basic Connections for Operation Connecting single load, Local sensingConnecting Single Load, Remote Sensing Connecting Multiple loads, radial distribution method Grounding outputs Multiple loads connection with distribution terminals Output voltage trimming at parallel operation Parallel and Series OperationParallel operation Parallel operation with Remote sensing Remote On/Off control at parallel operation Signal Return bus at parallel operation Series connection for positive and negative output voltage Series operation I2C BUS Interface Option Eeprom functions Block diagram of the I2C optionOperation and functions 7.4.1. Digital status Output current readback Analog functions4 A/D Scaling FPS1000 Typical application diagram FPS1000 Maintenance FPS-S1U 19 Rack Single Output Maximum output power Chapter FPS-S1U Rack Specifications FPS-S1U Rack Mounting FPS-S1U Rack Installation Rear panel description Control and monitoring signals connector SCL I2C Blank panels Modules location FPS-S1U and FPS-S1U/P Outline Drawings FPS-S1U/P Outline Drawing Multiple loads connection Basic Connections for Operation FPS-S1U Rack Output voltage trimming Supervisory signals12.4 On/Off control Parallel operation with Remote sensing Output voltage trimming at parallel operation Signal Return bus at parallel operation Remote On/Off control at parallel operation Addressing A0, A1, A2 FPS-S1U I2C BUS Interface OptionIntroduction Adjustments and Calibration FPS-S1U MaintenanceUnits under warranty Periodic maintenance FPS-T1U 19 Rack Triple Output Chapter FPS-T1U Rack Specifications FPS-T1U Rack Mounting FPS-T1U Rack Installation FPS-T1U Rear panel J1A, J2B, J3C Conector Description Modules location FPS-T1U and FPS-T1U/P Outline Drawings FPS-T1U/P Outline Drawing 19.2 On/Off control Basic Connections for Operation FPS-T1U Rack Output Voltag Trimming Load Series operation Module a Module B Module C FPS-T1U I2C BUS Interface Option FPS-T1U Maintenance