TDK FPS1000-32, FPS-T1U, FPS1000-12, FPS-S1U, FPS1000-48, FPS1000-24 manual I2C BUS Interface Option

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FPS1000 Instruction Manual

CHAPTER 7 I2C BUS INTERFACE OPTION

7.1 Introduction

The I2C interface option includes facilities to monitor operating parameters of the power supply. The parameters are then transferred to the host PC if demanded, over a standard I2C bus.

The following data can be monitored for the individual units connected to the I2C bus:

1.Status of the unit.

2.Actual output voltage, output current and internal temperature of the unit.

3.Manufacturing related data (model, serial number, manufacturing date etc…).

7.1.1 Addressing (A0, A1, A2).

Three address lines allow up to eight FPS1000 units to be addressed on a single I2C bus. The address lines are internally pulled-up to +5V by resistors. Addressing of a unit is achieved by hard-wiring an address line to the -Sense to set it to "0" or leaving the address line open to set it to "1".

7.1.2 Serial clock

This line is clocked by the processor which controls the I2C bus. It should be connected to +5V (referenced to -Sense) via a pull-up resistor of 2KΩ. The I2C interface is designed to run with a serial clock speed of 100KHz.

7.1.3Serial dataThis line is a bidirectional data line. It should be connected to +5V (referenced to -Sense) via a pull-up resistor of 2KΩ.

7.2 I2C Interface Specifications

 

7.2.1 General specifications

 

1.

Clock frequency:

100KHz

2. Address lines:

Three (A0, A1, A2). Support 8 power supply modules

7.2.2 Output voltage measurement

 

1.

Measurement accuracy:

+/-2% of full scale

2.

Measurement resolution:

8 bits

3.

Measurement range:

0~60.0V for 48V model / 0~40.0V for 32V model / 0-30.0V for 24V model.

7.2.3 Output current measurement

 

1.

Measurement accuracy:

+/-10% of full scale

2.

Measurement resolution:

8 bits

3.

Measurement range:

0~25.0A for 48V model / 0~50A for 32V & 24V models

7.2.4 Internal temperature measurement

+/-3°C

1.

Measurement accuracy:

2.

Measurement resolution:

8 bits

3.

Measurement range:

0-100°C

7.2.5 EEPROM

 

1.

EEPROM type:

AT24C02AN-10S , Atmel, or equivalent

2.

EEPROM data:

Model name, Serial no., Revision, Manufacture. Name, Output voltage,

 

 

Date, Country of manufacturing, Check-Sum

7.2.6 Status register

 

1.

Register type:

PCF8574, Philips, or equivalent.

2.

Register content:

DC Fail, Over-Temperature Protection (OTP)

 

 

Temperature Alarm, Fan Fail, AC Fail

CAUTION

The I2C bus address lines, serial clock and data are referenced to the -Sense potential. When using series connection of FPS1000 units, do not connect the I2C lines of the units together.

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Contents FPS Series 1000W In 1U FPS1000 Series Table of Contents Warranty Service WarrantyLimitation of Warranty 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 Remote On/Off control Dcok signalACFail signal FPS10004.7KΩRemote Sensing Connecting Multiple loads, radial distribution method Connecting single load, Local sensingConnecting Single Load, Remote Sensing Basic Connections for OperationMultiple loads connection with distribution terminals Grounding outputsParallel operation with Remote sensing Parallel and Series OperationParallel operation 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 Periodic maintenance FPS-S1U MaintenanceUnits under warranty 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

FPS1000-32, FPS-S1U, FPS1000-48, FPS1000-12, FPS-T1U specifications

TDK has established itself as a leading innovator in power supply solutions with its range of FPS series products, specifically designed for various demanding applications. Among these, the FPS1000-24, FPS-T1U, FPS1000-12, FPS1000-48, and FPS-S1U models stand out due to their advanced features, robust technologies, and versatile characteristics.

The FPS1000-24, catering to a voltage output of 24V, is ideal for both industrial and commercial applications. It delivers a notable output power of 1000 watts while boasting high efficiency, making it a reliable option for systems that require consistent power with minimal energy loss. The model incorporates advanced protection features including over-voltage, over-current, and short-circuit protection, ensuring that connected devices are safeguarded against potential electrical faults.

Similarly, the FPS1000-12 offers a 12V output with equivalent power ratings, making it suitable for applications such as telecommunications and medical devices where stability and reliability are paramount. This model also emphasizes thermal management, utilizing integrated cooling technologies to maintain optimal performance even under demanding conditions.

The FPS1000-48 distinguishes itself with a 48V output, which is increasingly prevalent in high-density computing environments and server applications. With enhanced scalability, this model allows for multiple unit configurations to support higher load demands while maintaining exceptional efficiency levels.

In addition to the standard offerings, TDK’s FPS-T1U and FPS-S1U models provide intelligent power management solutions. The FPS-T1U, being a compact version, is tailored for space-constrained environments, ensuring high performance without compromising on size. It features built-in monitoring capabilities that allow users to track power usage and efficiency metrics in real-time.

The FPS-S1U is particularly notable for its modular design, enabling easy integration into various systems. This flexibility allows users to adapt the power supply to specific system requirements, enhancing functionality across diverse applications. Both models leverage cutting-edge technology to ensure low standby power consumption, reducing the overall energy footprint.

Overall, TDK’s FPS series exemplifies a commitment to quality, performance, and adaptability, making them ideal candidates for modern power supply needs across industries. With their comprehensive protection mechanisms, efficiency, and innovative designs, they stand as reliable choices for engineers and designers looking to optimize their systems.
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