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| 型号： | 71M6511-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 54/115页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 71M6511 ENERGY METER |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | 71M6511 |
| 已供物品： | 2 个板，线缆，CD，电源 |
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71M6511/71M6511H Demo Board User’s Manual
The calibration procedure, using Demo Code revision 3.04, is as follows:
Calibrating for Shunt Resistor (Channel A):
1.
2.
3.
4.
5.
6.
7.
Calculate IMAX for the shunt resistor ( IMAX_SHUNT ). This can be done by using the following
formula:
IMAX_SHUNT = Vi MAX /R SH
The Vi MAX value is the maximum analog input voltage for the channel, typically 177mV (RMS), and
R SH is the resistance value of the shunt resistor.
The value obtained for IMAX_SHUNT is stored at the MPU address 0x0A, using the CLI command
)A= IMAX_SHUNT
Compute WRATE_SHUNT based on IMAX_SHUNT and VMAX and the formula given in 1.8.2:
WRATE_SHUNT = ( IMAX_SHUNT * VMAX * 47.1132) / (Kh * In_8 * N ACC * X)
Use VMAX = 600V (RMS) for the 6511 Demo Board if the resistor divider for VA has not been
changed.
Update the WRATE register (at CE address 0x2D) with WRATE_SHUNT , using the command
]2D= WRATE_SHUNT.
Test for accuracy at 15A, 240V at phase angle 0, phase angle 60° and at phase angle –60°.
Apply the error values to the calibration spreadsheet (revision 2.0 or later) and determine the
calibration factors for channel A, i.e. CAL_IA , CAL_VA , and PHADJ_A .
Update the CE registers 0x08, 0x09 and 0x0E of the compute engine with the calibration factors
obtained from the spreadsheet, using the commands ]8= CAL_IA , ]9= CAL_VA , and
]E= PHADJ_A .
Retest for accuracy at several currents and phase angles.
At this point, channel A is calibrated. WSUM will be based on the voltage applied to the meter and the
current flowing through the shunt resistor. The pulses generated will be based on the parameters entered for
channel A.
Calibration for CT (Channel B):
1.
2.
3.
4.
5.
6.
7.
Compute IMAX for the CT channel ( IMAX_CT ), based on the CT turns ratio N and the termination
resistor value R T using the formula:
IMAX_CT = 177mV* N / R T
This value is used in the following step as IMAX_CT .
Compute WRATE_CT based on the values obtained for IMAX_CT and the formula given in 1.8.2:
WRATE_CT = ( IMAX_CT * VMAX * 47.1132) / (Kh * In_8 * N ACC * X)
Update the WRATE register (CE address 0x2D) with WRATE_CT , using the command
]2D= WRATE_CT.
Enter the command >)7=2 . Configure W1SUM as external pulse source since the CT is
connected to Channel 1 for VA*IB.
Test for accuracy at 15A, 240V at phase angle 0, phase angle 60° and at phase angle –60°.
Apply these values to the calibration spread sheet (revision 4.0 or later) and derive the calibration
factor PHADJ_B .
Update only the CE address 0x0F with the value for PHADJ_B using the command ]F= PHADJ_B.
Page: 54 of 115
? 2005-2007 TERIDIAN Semiconductor Corporation
Revision 5.4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6511H | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Single-Phase Energy Meter IC |
| 71M6511H-DB | 功能描述:开发板和工具包 - 8051 71M6511H Demo Brd RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| 71M6511H-IGT | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Single-Phase Energy Meter IC |
| 71M6511H-IGT/F | 功能描述:计量片上系统 - SoC Highly Integrated SoC w/MCU Core RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6511H-IGTR | 制造商:Maxim Integrated Products 功能描述:RESID. HI PRECISION METR (1P, .1%) - Tape and Reel |
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