Summary of Contents for BERKSHIRE PRODUCTS 2010
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Page 1: User Manual
Wireless Current Sensor User Manual PN: 2010 Berkshire Products, Inc. Phone: 770-271-0088 http://www.bkp-store.com/ Rev: 1.10 © Copyright 2013-2016... -
Page 2: Table Of Contents
Wireless Current Sensor User Manual Table of Contents Introduction........................2 XB compatibility....................2 Making Connections and Jumper Settings..............3 AD/DC Power Input Jumper – J6 or J9...............3 AC/DC Current Sensing– J1, J3, & J4..............4 Current Sense Terminal – J5................4 Unstuffed Headers – J2, J2, & J8.................4 Theory of Operation and Configuration..............5 Input Sense Circuit....................5 Conditioning circuit.....................5... - Page 3 Wireless Current Sensor User Manual The latest versions of manuals, sample code and other tools can be found on our site at: http://bkp-store.com/ If you have any questions, corrections, or feedback about this manual please contact us http://bkp-store.com/index.php?route=information/contact Rev 1.10 10/19/2016...
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Page 4: Introduction
Wireless Current Sensor User Manual 1. Introduction The Wireless Current sensor is designed to measure AD or DC currents up to 5 Amps at a maximum of 36V. It is designed to sense positive or negative AC current levels or high / low DC current levels and use the set points to trigger an XBee wireless module to send a notification. -
Page 5: Making Connections And Jumper Settings
Wireless Current Sensor User Manual 2. Making Connections and Jumper Settings Refer to following PCB diagram for component placement. Figure 2-1 2.1 AD/DC Power Input Jumper – J6 or J9 The board can accept DC or AC power input. This can be with stripped wires connected to the screw terminal at J9 or the 2.1mm power connector J6 (see Figure 2 -1). -
Page 6: Ac/Dc Current Sensing- J1, J3, & J4
Wireless Current Sensor User Manual 2.2 AC/DC Current Sensing– J1, J3, & J4 The circuit is designed to sense AC or DC currents. More information will be supplied in the theory of operation section. For now note that these three jumpers should all be in the same position as follows: Pin 1-2: –... -
Page 7: Theory Of Operation And Configuration
Wireless Current Sensor User Manual 3. Theory of Operation and Configuration Before we start we need to make one thing clear: this is not a precision scientific instrument. It is designed to allow you to measure / sense currents and report the results wirelessly. -
Page 8: Circuit Setup
Wireless Current Sensor User Manual 3.4 Circuit Setup On the XBee radio you need to program the digital inputs DIO1 and/or DIO2 to Change Detect mode to report the comparator changes as required. You can disable the low side comparator, U2B via XBee programming or by using R7 to set the voltage at pin 6 of U2B to 0.0V. -
Page 9: Configuring The Xbee Radio
Wireless Current Sensor User Manual 4. Configuring the XBee Radio The examples shown here use an XBee 2.4G DigiMesh version with Digi’s X-CTU software which is free and available from Digi International (www.digi.com). To program the radios we use the UARTSBee V4 device which provides power and a USB UART connection to the PC. -
Page 10: Starting X-Ctu
Wireless Current Sensor User Manual 4.1 Starting X-CTU When you start X-CTU you should see a screen like the following: Figure 4-3 In this example the USB → Serial was on COM4. The baud rate should be 9600 to start with, since that is how the XBees are shipped from Digi. -
Page 11: Configuring The Networking
Wireless Current Sensor User Manual 4.2 Configuring the Networking The next step is to click the Modem Configuration tab and then press the Read button to get a screen like the following: Figure 4-5 Under the Networking section there are options that you can change. Note that different types of modules will have different options. -
Page 12: Configuring The Addressing
Wireless Current Sensor User Manual 4.3 Configuring the Addressing XBee modules talk to each other using their serial numbers or a 16 bit addressing scheme. We will show the 802.15.4 64 bit scheme here. The Digi XBee manuals show you how to use short addresses. Figure 4-6 In this example we are programming a module for an I/O board that will talk to a host module (base station) at regular intervals. -
Page 13: Configuring The Serial Interfacing
Wireless Current Sensor User Manual 4.4 Configuring the Serial Interfacing There are a few options to set here: Figure 4-7 One option that needs setting here is the API enable. API mode must be enabled if the XBee module on the I/O board is going to be able to transmit input pin information and set the outputs. -
Page 14: Configuring I/O Settings
Wireless Current Sensor User Manual 4.5 Configuring I/O Settings Here is where you configure the I/O pins for DIO0 to DIO5 (see prior section for DIO6 & DIO7): Figure 4-8 Configure DIO0 to DIO5 pins as input or output to match your I/O board setup. DIO8 to DIO12 are not used and should be left as 0-Disabled. -
Page 15: Configuring I/O Sampling
Wireless Current Sensor User Manual 4.6 Configuring I/O Sampling This is the last area of X-CTU covered here: Figure 4-9 The DIO Change Detect is a bit field and should be set to a hex value. Any bit that is set will cause the XBee to send a packet when the I/O line for that bit changes (goes low to high or high to low) and the pin is set as an input. -
Page 16: Schematic Diagram
Wireless Current Sensor User Manual 5. Schematic Diagram Rev 1.10 10/19/2016... - Page 17 Wireless Current Sensor User Manual Rev 1.10 10/19/2016...
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Page 18: Pcb Mechanical
Wireless Current Sensor User Manual 6. PCB Mechanical Note: Dimensions are in mils. Rev 1.10 10/19/2016... -
Page 19: Appendix A - Specifications
Wireless Current Sensor User Manual 7. Appendix A – Specifications Power Requirements: 8V @ 400mA – minimum 32V maximum @ 100mA Do not exceed +32V input. The Input DC voltage (after the bridge rectifier) can be monitored at TP1 (see Figure 2 -1) on the board. Environmental: ... -
Page 20: Appendix B - Warranty
Wireless Current Sensor User Manual 8. Appendix B - Warranty Berkshire Products, Inc. warrants to the original consumer or other end user purchaser that this product is free from defects in materials or workmanship for a period of one (1) year from the date of purchase.
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