6. AnalogFunction(ReadOnly)

7.EEPROMFunction(ReadOnly)

6.1 AnalogfunctionareprovidedbyasinglePCF85914-channel8-bit A/Dconverter.WhenthisdeviceisreadbytheICbuscontroller,itprovidesan8-bit

6.2 A/Dscaling

TheEEPROMisa2048bit(256byte)devicewhichispreprogrammedatthefactorywiththefollowingdata:

wordwiththefollowinginformation:

Thevoltagereadingismadeinsidethepowersupplyunitbeforethe"Oringdiode"andistypically0.5Vhigherthantheactualoutputvoltage.

Thefollowingtableforthescalingshouldbeemployed:

VALUE=BYTEVALUExRESOLUTION

PCF8591slaveaddress

PCF8591controlbyte

2

3

4

Bit

Bit

OutputVoltage

Address

12V

4

12V

56

12V

104

24V

20

24V

72

24V

254

48V

40

48V

88

48V

Range

Bytes

0~16V

16

16

16

16

16

16

0~33V

20

0~65V

0~80A

0~55A

0~30A

0~100

0~100

2

0~100

Scaling

Data

0.0625V/Bit

Manufacturer

SerialNumber

Revision

Countryofproduction

ModelName

OutputVoltage

Dateofproduction

CheckSum

0.129V/Bit

0.254V/Bit

0.312A/Bit

0.215A/Bit

0.117A/Bit

0.391

/Bit

0.391

/Bit

0.391

/Bit

Tolerance

5%

A/DChannel1

A/DChannel2

A/DChannel3

Voltage

Current

Temperature

+3%,-5%

+2%,-5%

10%

10%

10%

3

3

3

Value

Value

2

1

A/DChannel

FUNCTION

OutputVoltage

OutputCurrent

Internal Temperature

NotUsed

7

7

1

0

6

5

6

5

0

0

0

0

4

4

1

0

3

3

A2

0

0

2

2

A1

1

1

A0

0

0

0

0

1

0

1

0

:OutputVoltage

:OutputCurrent

:Internal Temperature

R/W

1000~3000WFrontEndPowerSystem

FileName:RCP series-SPEC2008-08-12

5.2DigitalFunction(ReadOnly)

DigitalfunctionareprovidedbyaPCF85748-bitI/Oportdevice.WhenthisdeviceisreadbytheICbuscontroller,asingle8-bitwordprovidesthe

followinginformation.

BIT

FUNCTION

GOODSTATE

FAIL STATE

MEANING

Inputpowerfail

Outputvoltageislessthanspecification

Internaltemperatureisover60

.PSUturnson

Temperatureexceedsnominaloperatinglimit.PSUturnsoff

Failureofaninternalfan

Notused

Notused

Notused

0

1

1

1

1

1

0

0

0

0

------

------

------

------

------

------

0

ACInputFail

1

OutputPowerGood/Fail

2

TemperatureWarning

3

Over TemperatureProtection

4

FanFailWarning

5

NotUsed

NotUsed

NotUsed

6

7

2

EEPROMslaveaddress

Bit

7

6

5

4

3

2

1

0

Value

1

0

1

0

A2

A1

A0

R/W

Bit

7

6

5

4

3

2

1

0

Value

0

1

0

0

A2

A1

A0

R/W

Read:1

Write:0