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27

1

st

screen:Import Energy. E_imp=68.32kWh.

Press "V/A" to scroll to the 2

nd

screen.

2

nd

screen:Export Energy. E_exp=25.58kWh.

Press "V/A" to scroll to the 3

rd

screen.

3

rd

screen:Total Energy. E_total=93.90kWh.

Press "V/A" to scroll to the 4

th

screen.

4

th

screen: Net Energy. E_net=47.74kWh.

Press "V/A" to scroll to return to the 1

st

screen.

Figure

3-5

Import Energy Display

Figure

3-6

Export Energy Display

Figure

3-7

Total Energy Display

Figure

3-8

Net Energy Display

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Summary of Contents for AcuDC 241

Page 1: ...AcuDC 240 Series Power Meter User s Manual...

Page 2: ......

Page 3: ...Accuenergy Tech Ltd This manual may not be altered or reproduced in whole or in part by any means without the expressed written consent of Accuenergy Accuenergy reserves all rights Document 1504E2101...

Page 4: ...re used to provide warning of danger or risk during the installation and operation of the meters Electric Shock Symbol Carries information about procedures which must be fol lowed to reduce the risk o...

Page 5: ...y and Operation 23 3 1 Display Panel and Keys 24 3 2 Metering Data 25 3 3 System Parameter Settings 28 3 4 I O Parameter Settings 32 3 5 Meter Information Display 38 Chapter 4 Communications 41 4 1 Mo...

Page 6: ...IV...

Page 7: ...meter will be affixed to the meter 5 Product Disk containing User s Manual and Warranty Card x1 User s manual contents Chapter 1 Introduces the basic AcuDC 240 features and applications Chapter 2 Prov...

Page 8: ...VI...

Page 9: ...1 Chapter 1 Introduction 1 1 Meter Overview 1 2 Area of Application 1 3 AcuDC 240 Series...

Page 10: ...ich makes installation or removal quick and convenient User Friendly Interface AcuDc 240 series utilizes a clear high definition LCD screen with large characters The LCD screen comes with a brightness...

Page 11: ...cuDC 242 AcuDC 243 AcuDC 241 is a voltage meter only monitors voltage AcuDC 242 is a current meter only monitors current AcuDC 240 is a multifunction meter monitors voltage current power and energy Ca...

Page 12: ...4...

Page 13: ...5 Chapter 2 Installation 2 1 Appearance and Dimensions 2 2 Installation Methods 2 3 Wiring...

Page 14: ...r mounting onto a panel Display Large LCD display Key Two keys are used to select display and set Voltage Input Terminals Used for voltage input Communication Terminals Communication output IO Module...

Page 15: ...larger temperature range is needed please contact Accuenergy Please note it can influence the meter life negatively if the meter operates in extremly high or extremly low temperature environments Acu...

Page 16: ...tallation Steps AcuDC 240 series power meter is generally installed into the switchboard panel 1 Cut a square hole standard DIN See Figure 2 3 for dimensions Unit mm 2 Remove the clips from the meter...

Page 17: ...Figure 2 5 2 3 Wiring Terminal Strips There are 3 groups of current terminal strips There will be another terminal strip if the me ter is connected with the I O module Voltage Current terminal strip F...

Page 18: ...symbol is used in this user s manual FIgure 2 7 Grouding Sign I O terminal strip 2DI 2AO I O terminal strip 2DI 2RO 2DO 17 18 19 DI11 DI12 DI21 20 21 22 DI22 AO1 AO1 23 24 AO2 AO2 Communicaton termin...

Page 19: ...1 12 13 L N G Figure 2 8 Power Supply Wiring The independent power supply circuit loop must have a fuse or air circuit breaker The fuse could be 1A 250Vac time delay type If circuit breaker is used a...

Page 20: ...Sensor The wire size for the voltage input is AWG16 22 or 0 6 1 5mm2 Please see the wiring diagrams for details Voltage Wiring Two ways Direct Input and Via Hall Sensor Figure 2 10 Voltage Input 1A F...

Page 21: ...nput Current Wiring using Current Hall Effect Sensor Load AcuDC 240 Current Hall Effect Sensor Vdc Vdc 6 5 I I Output External DC Power Current Input Current Wiring Three ways Direct Input Via Shunt V...

Page 22: ...dc Vdc 6 3 5 V V I I Output External DC Power Voltage Current Wiring using Hall Effect Sensors 1 3 AcuDC 240 Current Hall Effect Sensor Voltage Hall Effect Sensor Load Vdc Vdc 5 6 V V I I Input Output...

Page 23: ...n range shorter AcuDC 240 works as Slave device Maser device can be PC PLC Data Acquisition Device or RTU In order to improve communcation quality please pay attention to the following A high quality...

Page 24: ...iode is off OUT is in low state When the Switch is closed there is current flow in the diode side the triode is on OUT is in high state In this way the high and low state of OUT correspondes to closed...

Page 25: ...communication option can be configured via our software 1 Select AO parameter 2 Set AO upper and lower limits For voltage it can be set as 0 100 For current and power it can be set as 0 100 0 100 100...

Page 26: ...rent 100 Lower Limit Measured Value Full Range Value Lower Limit Upper Limit 100 Lower Limit Measured Value Full Range Value Lower Limit Upper Limit 100 Lower Limit Measured Value Full Range Value Low...

Page 27: ...e Value is 20A When the Measured Value is 10A AO is 3 AO is current type Set AO parameter as Current Upper Limit is 100 Lower Limit is 0 Full Range Value is 20A When the Measured Value is 10A AO is V...

Page 28: ...of the Lower Limit AO will be 0V 1V or 0mA 4mA When the Measured Value is out of the Upper Limit AO will be larger than 5V 20mA but the maximum will be 6V 5 8V or 23 2mA 24mA Relay Output AcuDC 240 se...

Page 29: ...ers over under limit alarming function When the monitored param eter goes beyond below the preset limit and stays at the level over the preset amount of time delay the over under limit alarm will be t...

Page 30: ...signal via RO1 Steps 1 Set RO1 as alarm mode set RO1 mode as 2 2 Select alarm parameter as current set alarm parameter code as 2 3 Set alarm inequality as larger than set the inequality sign as 1 4 S...

Page 31: ...23 Chapter 3 Meter Display and Operation 3 1 Display Panel and Keys 3 2 Metering Data 3 3 System Parameter Settings 3 4 I O Parameter Settings 3 5 Meter Information Display...

Page 32: ...viewing real time metering data and setting parameters using different key combinations 3 1 Display Panel and Keys The front of the AcuDC 240 series meter consists of an LCD screen and two control ke...

Page 33: ...t Two icons query sent and response received 4 Settings Mode Indicates the meter is in Settings Mode Table 3 1 LCD Display There are two keys on the front panel marked as F key and V A key Use these t...

Page 34: ...screen displays voltage current and power The first line displays voltage the second line diplays current the third line displays power U 220 2V I 49 99A P 11KW Communication status is active Note Com...

Page 35: ...s V A to scroll to the 3rd screen 3rd screen Total Energy E_total 93 90kWh Press V A to scroll to the 4th screen 4th screen Net Energy E_net 47 74kWh Press V A to scroll to return to the 1st screen Fi...

Page 36: ...entering the parameter settings mode via pressing F and V A the first screen is device address screen As the left figure shows the current device address is 1 After 1 second the screen will scroll to...

Page 37: ...e figure on the left indicates the baud rate is 19200 bps Baud rate editing is not by digit simply press F key to select the desired baud rate Press V A to go to the next screen Note Only meters with...

Page 38: ...wiring via external shunt has this screen 6th screen current hall effect sensor setting Two modes 0 0 5V 4 20mA 1 0 4V 4 12 20mA Press F key to select Press V A to go to the next screen Note only the...

Page 39: ...cleared to 0 10th screen backlight brightness setting 5 levels of backlight brightness 1 is minimum light level 5 is maximum light level Press F key to select Press V A to go to the next screen 11th...

Page 40: ...en pressing F and V A simultaneously will exit I O parameter settings mode and return to the system parameter settings mode I O module has two types AO type and RO type For AO type module it offers tw...

Page 41: ...n can be adjusted by moving the cursor to the digit Press F and V A to edit the vaule Press V A at the last digit to confirm and go to the next screen The figure shows the lower limit is 0 3rd screen...

Page 42: ...6th screen AO2 upper limit setting Except 100 100 all the other upper limit cannot be smaller or equal to the lower limit There is no sign digit when AO2 is set as voltage Press F and V A to edit the...

Page 43: ...confirm and go to the next screen 3rd scrreen RO1 alarm parameter when RO is set as Alarm mode 0 no alarm 1 voltage 2 current 3 power Press F key to select Press V A to confirm and go to the next scr...

Page 44: ...condition is no longer met after 15 seconds the alarm will be restored Press F and V A to edit the vaule Press V A to confirm and go to the next screen 7th screen RO2mode Threemodes 0 Latch 1 Momentar...

Page 45: ...ller than Press F key to select Press V A to confirm and go to the next screen 11th screen RO2 alarm threshold setting The threshold setting range is the same as the measurement range Voltage 0 1200 C...

Page 46: ...r display It is the accumulated running hours of the meter since being powered up The unit is hour The left figure shows the meter running hour is 1471 32 hours Press V A key to switch to load running...

Page 47: ...ds to en ter meter serial number display mode It displays the last 8 digits of the meter serial number The left figure shows the meter serial number is DC12012501 Press V A key to return to the meteri...

Page 48: ...40...

Page 49: ...41 4 1 MODBUS RTU Protocol 4 2 Communication Format 4 3 Communication Address Table Chapter 4 Communication...

Page 50: ...240 s communication Data format and error check methods are defined in Modbus protocol The half duplex query and respond mode is adopted in Modbus protocol Modbus allows master device PC PLC etc to c...

Page 51: ...ress Function Data Check 8 Bits 8 Bits N x 8 Bits 16 Bits Table 4 1 Data Frame Format 2 2 Address Field The address field is at the start of the frame It is composed of 1 byte 8 bits its decimal value...

Page 52: ...er and how many registers to read 2 5 Error Check Field The field allows the error check by master and slave devices Due to electrical noise and other interferences a group of data may be changed whil...

Page 53: ...SB is extracted and examined if the LSB equals to 1 the register is exclusive ORed with a preset fixed value if the LSB equals to 0 no action will be taken This process is repeated until eight shifts...

Page 54: ...device address and function code query frame must contain the relay register starting address and the number of registers to be read AcuDC 240 relay output address starts from 0000H Relay1 0000H Rela...

Page 55: ...ster starting address and the number of registers to be read AcuDC 240 DI address starts from 0000H DI1 0000H DI2 0001H Table 4 6 depicts of reading DI1 to DI2 status of the slave device with the addr...

Page 56: ...ave device address 1 voltage AcuDC 240 voltage address is 0200H 0201H Addr Fun Data start reg hi Data start reg lo Data of regs hi Data of regs lo CRC16 hi CRC16 lo 01H 03H 02H 00H 00H 02H C5H B3H Tab...

Page 57: ...anges the relay status to ON data 0000H changes the relay status to OFF The relay will not be influenced by any other data input The following is to query slave device 1 to set relay status as ON Addr...

Page 58: ...1 hi Value1 lo 01H 10H 01H 09H 00H 05H 0AH 00H 01H Value2 hi Value2 lo Value3 hi Value3 lo Value4 hi Value4 lo Value5 hi Value5 lo CRC16 hi CRC16 lo 00H 00H 00H 00H 00H 00H 00H 64H C5H 8AH Table 4 12...

Page 59: ...Read Address Parameter Range Data Type Property 0280H 0281H Meter running time 0 999999999 long R 0282H 0283H Load running time 0 999999999 long R Energy The data space below is for energy Function co...

Page 60: ...9999 0000 Word R W 0101H Device Address 1 247 1 Word R W 0102H Baud Rate 1200 38400 19200 Word R W 0103H Parity Setting 0 Even 1 Odd 2 None 2 3 None 1 3 Word R W 0104H Full Range Current Value 20 5000...

Page 61: ...arger than 0 Word R W 0117H RO1 Alarm Time Delay 0 255 s 5 Word R W 0118H 0119H RO1 Alarm Threshold The same as full range value s Float R W 011AH RO2 Mode 0 latch 1 momentar y 2 alarm 2 Word R W 011B...

Page 62: ...rty 0000H DO1 1 ON 0 OFF Bit R W 0001H DO2 1 ON 0 OFF Bit R W Table 4 18 Relay Status Note 1 Data Type Bit is 1 bit binary Word is 16 bit unsigned integer Integer is 16 bit signed interger Float is 32...

Page 63: ...55 Appendix Appendix A Technical Data and Specification Appendix B Ordering Information Appendix C Version Information...

Page 64: ...pm C Stability 0 5 year 2 Input DC Voltage Input Range Direct Input 0 1000V Via Hall Effect Sensor 0 1200V Impedance 2M Load 0 6W Accuracy 0 2 Digital Input Input Type Dry Contact Isolation Voltage 25...

Page 65: ...Isolation Voltage 4000Vac Mechanical Life 5 106 Analog Output Range 4 20mA 0 20mA 0 5V 1 5V Accuracy 0 5 Load Capacity mA type max load resistance 750 V type max load current 20mA Communication Type R...

Page 66: ...8 Power Supply Input P1 100 240Vac 50 60Hz 100 300Vdc P2 20 60Vdc Consumption 3W typical Operating Environment Operating Temperature 25 C 70 C Storage Temperature 40 C 85 C Humidity 5 95 non condensin...

Page 67: ...0mA 12mA 8mA A3 Voltage type Hall Effect Sensor 0 5V 0 4V Communication Current 1000V Full Range Value 1000Vdc 600V Full Range Value 600Vdc 300V Full Range Value 300Vdc 60V Full Range Value 60Vdc 5V V...

Page 68: ...ge Hall Effect Sen sor requires 0 5 V 2 I O X1 type is configured as 4 20mA by factory default X2 type as 0 5V by factory default If any other type is required please contact us in advance Current Hal...

Page 69: ...61 Appendix C Version Information Version Data Description V1 01 20120723 1st version...

Page 70: ...our Power and Automation Partner Accuenergy Corp Los Angeles Toronto Beijing North America Toll Free 1 877 721 8908 Web www accuenergy com Email support accuenergy com Your Power and Automation Partne...

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