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UM0221
User manual
STEVAL-IPE007V1: Single-phase energy meter
with tamper detection based on ST7lite2x
Introduction
This user manual provides a description of a single chip energy meter, STEVAL-IPE007V1,
with tamper detection. The meter fulfills IEC 61036:1996 + A1:2000 static meter
requirements for active energy (classes 1 and 2) with I
=10A and I
=50A. It detects
b
max
signals from a few mA, and continues to measure accurately even under tamper conditions.
The bill of materials and board schematics are also provided in
Appendix A
and
Appendix
B.
April 2006
Rev 2
1/14
www.st.com
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Summary of Contents for ST STEVAL-IPE007V1
- Page 1 ST7lite2x Introduction This user manual provides a description of a single chip energy meter, STEVAL-IPE007V1, with tamper detection. The meter fulfills IEC 61036:1996 + A1:2000 static meter requirements for active energy (classes 1 and 2) with I =10A and I =50A.
- Page 2 Contents UM0221 Contents Hardware overview ......... . 3 Revision history .
-
Page 3: Hardware Overview
UM0221 Hardware overview Hardware overview The following figure shows both the external parts and the main layout of the components across the board. Figure 1. Energy meter The parts are numbered as follows: Current transformer Power supply LCD module Analog switch EEPROM ST7Flite20 microcontroller Operation Amplifier... - Page 4 Hardware overview UM0221 Figure 2. Connection diagram of meter Neutral Phase Mains Current Transformer Neutral Red wire Power Black wire Load Pulse Tamper Count LED Black wire Red wire Current Transformer Phase The AC supply is connected to the power supply section of the energy meter. The power LED glows when the supply is on.
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Page 5: Revision History
UM0221 Revision history Revision history Table 1. Document revision history Date Revision Changes 07-Apr-2006 Initial release. 25-Apr-2006 Document watermark removed 5/14... -
Page 6: Appendix A Bill Of Materials
Bill of materials UM0221 Appendix A Bill of materials Table 2. Capacitors Temp. Pack / Item # Desc. Ref. Part # Value Voltage Rating Range Type C5,C6,C7 ,C8,C9,C Ceramic .1UF 10,C11,C -55°C to Electrolytic 1000uF Leaded +85°C Ceramic C18,C19 22nF C14,C15, Ceramic 22pF... - Page 7 UM0221 Bill of materials Table 3. Resistors Temp. Pack / Item # Desc. Ref. Part # Value Voltage Rating Range Type -55°C to 1/8W +125°C -55°C to 1/8W +125°C -55°C to 1/8W +125°C -55°C to 390E 1/8W +125°C -55°C to 220E 1/8W +125°C...
- Page 8 Bill of materials UM0221 Table 4. Integrated circuits Temp. Pack / Item # Desc. Ref. Part # Value Voltage Rating Range Type Positive L78L05A positive voltage -40°C to voltage TO-92 regulators +125°C regulator 1.8V input/output rail TS1854AI to rail low -40°C to Op- Amp SO14...
- Page 9 UM0221 Bill of materials Table 6. Metal oxide varistors Temp. Pack / Item # Desc. Ref. Part # Value Voltage Rating Range Type 400V Table 7. Trim pot Temp. Pack / Item # Desc. Ref. Part # Value Voltage Rating Range Type Rectangu...
- Page 10 Bill of materials UM0221 Table 12. Switches Temp. Pack / Item # Desc. Ref. Part # Value Voltage Rating Range Type Press button Switch (Size 6.1mm x 6.1 mm) Table 13. ICP connector Temp. Pack / Item # Desc. Ref. Part # Value Voltage...
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Page 11: Appendix B Board Schematics
UM0221 Board schematics Appendix B Board schematics Figure 3. Schematic 1/6 100n OSC1 16MHz ICP-PIN7 DATA-LCD NCS-LCD ICP-PIN6 OSC1/CLKIN OSC2 SW-PB NRST PA0/LTIC AIN0 NSS/AIN0/PB0 PA1/ATIC NCS-LCD 0.01u SCK/AIN1/PB1 PA2/ATPWM0 NWR-LCD MISO/AIN2/PB2 PA3/ATPWM1 DATA-LCD JUMPER MOSI/AIN3/PB3 PA4/ATPWM2 CTRL-A/B CLKIN/AIN4/PB4 ICCDATA/ATPWM/PA5 ICP-PIN2 AIN-PB4 AIN5/PB5... - Page 12 Board schematics UM0221 Figure 5. Schematic 3/6 AIN-PB4 AIN-PB6 IN-GAIN16 OUT-GAIN16 470E OUT A OUT D IN A- IN D- U2-3 U2-12 2.5V IN A+ IN D+ 470E U2-5 IN B+ IN C+ 2.5Vref 2.5V IN B- IN C- 220E OUT B OUT C 2.5V...
- Page 13 UM0221 Board schematics Figure 7. Schematic 5/6 ICP-PIN2 ICP-PIN4 ICP-PIN6 ICP-PIN7 ICP-PIN9 CON10A CON2 NCS-LCD NWR-LCD DATA-LCD CON9 Title Size Number Revision Orcad A Date: 16-Feb-2006 Sheet of File: Z:\Backup\Deepu\PCB_Design\EMeter\EMeter.ddb Drawn By: Figure 8. Schematic 6/6 32.768kHz 100nF NE-RTC NRST NIRQ/FT/OUT NRSTIN1 NRSTIN2...
- Page 14 No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein.
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