TOA Electronics FPS-T1U, FPS1000-24, FPS1000-12, FPS1000-32, FPS-S1U, FPS1000-48 Load

Page 52

FPS-T1U Instruction Manual

CHAPTER 20 PARALLEL AND SERIES OPERATION

20.1 Parallel operation

Up to 3 x FPS-T1U racks with up to 8 x FPS1000 installed units of the same output voltage rating can be connected in parallel. The built-in Oring diodes on the main output and on the +12V auxiliary voltage in each FPS1000 unit allow N+1 operation. By connecting the CS signal between the paralleled units, automatic current balance is achieved, with +/-10% accuracy. For input voltages less than 100Vac, maximum output Power derated by 10% of the Power rating. Refer to Fig 20-1 for output Power derating in parallel operation.

%of rated Power

100

90

			Input voltage
		265	Input voltage
85	100	265	(Vrms)

Fig 20-1

20.1.1 Parallel operation with Remote sensing

Fig 20-2 shows typical connection of parallel operation with Remote sensing. The CS signal wires should be as short aspossible and with the same length.

J1(A)-10

CS

J1(B)-10

CS

J1(C)-10

CS

FPS-T1U			+V		+S
FPS-T1U			+S		+S
			+S
FPS-1000 Module A			-S		-S
			-V		-S
			-V
					+S
			+V	+S	+V
			+S	+S
FPS-1000 Module B			+S		LOAD
FPS-1000 Module B			-S		LOAD
			-S	-S
			-V	-S	-V
			-V		-V
					-S
FPS-1000 Module C
			+V	+S
			+S	+S
			+S
ON/	ON/	ON/	-S
OFF_1	OFF_1	OFF_1	-S	-S
A	B	C	-V	-S
			-V

J1(A)-3

J1(A)-12

J2(B)-3

J2(B)-12

J3(C)-3

J3(C)-12

Fig 20-2 Parallel operation with Remote sensing

49

Image 52

Contents FPS Series 1000W In 1U FPS1000 Series Table of Contents Warranty Limitation of WarrantyWarranty Service DisclaimerFPS1000 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 Load Wiring Connecting the LoadCurrent Carrying Capacity Inductive loads Noise and Impedance EffectsMaking the load connections Input/Output connector information Repackaging for ShipmentFunctions and Features Dcok signal ACFail signalRemote On/Off control FPS10004.7KΩRemote Sensing Connecting single load, Local sensing Connecting Single Load, Remote SensingConnecting Multiple loads, radial distribution method Basic Connections for OperationMultiple loads connection with distribution terminals Grounding outputsParallel and Series Operation Parallel operationParallel operation with Remote sensing Output voltage trimming at parallel operationSignal Return bus at parallel operation Remote On/Off control at parallel operationSeries operation Series connection for positive and negative output voltageI2C BUS Interface Option Operation and functions 7.4.1. Digital status Block diagram of the I2C optionEeprom functions 4 A/D Scaling Analog functionsOutput current readback Typical application diagram FPS1000FPS1000 Maintenance FPS-S1U 19 Rack Single Output Chapter FPS-S1U Rack Specifications Maximum output powerFPS-S1U Rack Installation FPS-S1U Rack MountingControl and monitoring signals connector Rear panel descriptionSCL I2C Modules location Blank panelsFPS-S1U and FPS-S1U/P Outline Drawings FPS-S1U/P Outline Drawing Basic Connections for Operation FPS-S1U Rack Multiple loads connection12.4 On/Off control Supervisory signalsOutput voltage trimming Parallel operation with Remote sensing Signal Return bus at parallel operation Output voltage trimming at parallel operationRemote On/Off control at parallel operation Introduction FPS-S1U I2C BUS Interface OptionAddressing A0, A1, A2 FPS-S1U Maintenance Units under warrantyPeriodic maintenance Adjustments and CalibrationFPS-T1U 19 Rack Triple Output FPS-T1U Rack Specifications ChapterFPS-T1U Rack Installation FPS-T1U Rack MountingFPS-T1U Rear panel J1A, J2B, J3C Conector Description Modules location FPS-T1U and FPS-T1U/P Outline Drawings FPS-T1U/P Outline Drawing Basic Connections for Operation FPS-T1U Rack 19.2 On/Off controlOutput Voltag Trimming Load Series operation FPS-T1U I2C BUS Interface Option Module a Module B Module CFPS-T1U Maintenance