POWER FACTOR READING ON ADE7953

help me please

Did you phase calibrate?  Verify phase calibration by reading energy at pf1 and pf 0.5  the energy register should read half the value at pf.5. You can use any pf just scale the expected value in the energy register. 

Dave

i am reading 0x10A register for PF . how is the pf reading is converted into actual reading is there any equation or any other way.

pf 1 = 0x7FFF=   32767

pf/lsb = 1/32,767= 3.051850947599719e-5 = 2^-15

pf 0x10A = 266 *  3.051850947599719e-5 = 0.0081179235206153 or pf 0 

Dave

thanks for me to helping me

as per above calculation

PFreading (1PF in reference meter.and also a resistive load)=0x613B=24891

PF=24891 * 3.0518509475997192297128208258309e-5   = 0.75963621936704

which are the other  registers affect the  PF(0x10A) readings.

Phase compensation register PHCALA and PHCALB and WATT and VA gain

Pf uses Active and apparent power so calibrate phase first. Then active power gain  and apparent power gain. 

Dave

Thanks for your valuble answer thanks dave 

PF VALUE COMES WITH LARGE VARIATION WHAT IS THE REASON BEHIND THIS ENEGY ACCUMATION ALSO VERY HIGH WHAT WILL BE REASON

Can you show me some numbers from the ADE7953?

in register codes and your converted numbers 

Watt 

VA 

VAR

PF 

And what you expect.

Dave

THANKS, DAVE FOR REPLYING,

WATT = 0x11689  [ watt conversion= (0x11689*100)/898]  conversion is done for making as integer I doesn't use float value

VA =0xB01A

AVAR =0xB00F

PF =0x7FFF68 [ pf conversion = 0x7FFF68*306/10000 ]

In PF some times I get 1 after conversion  sometimes it will be .997 

Write_ADE7953(UNLOCK_REG, 0xAD, 1); //0xFE
Write_ADE7953(SPEC_REG, 0x30, 1); // 0x120
Write_ADE7953(CONFG_REG, 0x0080,2);
Write_ADE7953(CONFG_REG, 0x004C,2); //0x102
Write_ADE7953(PGAV_REG, 0x00, 1); //0x007
Write_ADE7953(PGAI_REG, 0x03, 1); //0x008 3 gain 8
Write_ADE7953(LCYCMODE_REG, 0x11,1); //0x004
Write_ADE7953(LINECYC_REG, 0x0064,2); //0x101
Write_ADE7953(CFMODE_REG, 0x0000,2); //0x107
Write_ADE7953(ACCMODE_REG, 0x000001,3); //0x201
Write_ADE7953(IRQAEN_REG, 0x040000, 3); //0x22C

Write_ADE7953(CFIDEN_REG, 0x10E6, 2); //0x103
Write_ADE7953(CFIDEN_REG, 0x10E6 , 2);
Write_ADE7953(AWGAIN_REG, 0x2F97AF, 3); //0x280AVGAIN_REG 0x249900
Write_ADE7953(AVGAIN_REG, 0x333333, 3);
Write_ADE7953(0x284, 0x1D7B15 , 3);
Write_ADE7953(AIGAIN_REG,0x35c900 , 3);
Write_ADE7953(0x108,0x0000,2);

these are my initialization VRMS IRMS AND WATT ARE correct.

THANKS, DAVE FOR REPLYING,

WATT = 0x11689  [ watt conversion= (0x11689*100)/898]  conversion is done for making as integer I doesn't use float value

VA =0xB01A

AVAR =0xB00F

PF =0x7FFF68 [ pf conversion = 0x7FFF68*306/10000 ]

In PF some times I get 1 after conversion  sometimes it will be .997 

Write_ADE7953(UNLOCK_REG, 0xAD, 1); //0xFE
Write_ADE7953(SPEC_REG, 0x30, 1); // 0x120
Write_ADE7953(CONFG_REG, 0x0080,2);
Write_ADE7953(CONFG_REG, 0x004C,2); //0x102
Write_ADE7953(PGAV_REG, 0x00, 1); //0x007
Write_ADE7953(PGAI_REG, 0x03, 1); //0x008 3 gain 8
Write_ADE7953(LCYCMODE_REG, 0x11,1); //0x004
Write_ADE7953(LINECYC_REG, 0x0064,2); //0x101
Write_ADE7953(CFMODE_REG, 0x0000,2); //0x107
Write_ADE7953(ACCMODE_REG, 0x000001,3); //0x201
Write_ADE7953(IRQAEN_REG, 0x040000, 3); //0x22C

Write_ADE7953(CFIDEN_REG, 0x10E6, 2); //0x103
Write_ADE7953(CFIDEN_REG, 0x10E6 , 2);
Write_ADE7953(AWGAIN_REG, 0x2F97AF, 3); //0x280AVGAIN_REG 0x249900
Write_ADE7953(AVGAIN_REG, 0x333333, 3);
Write_ADE7953(0x284, 0x1D7B15 , 3);
Write_ADE7953(AIGAIN_REG,0x35c900 , 3);
Write_ADE7953(0x108,0x0000,2);

these are my initialization VRMS IRMS AND WATT ARE correct.