Digital Power Meter User Manual DPM380 / DPM380B
Contents
1. ur gel ti 3 o 42 0 e Mikro No 1 Jin TP7 7 Sime UEP Industrial Park 40400 Shah Alam Selangor Malaysia Tel 603 51927155 Fax 603 51927166 Website www itmikro com e mail sales Gitmikro com2. 111 112 113 System seroll Neutral setting Minutes Hours Days NOTE Register list is based on firmware version 3 0 6 Maintenance and Troubleshooting The power meter does not contain any user serviceable parts If the power meter requires service please contact your local sales representative Do not open the power meter Opening the power meter voids the warranty NOTE We reserve the right to alter or modify the information contained herein at any time in line with our product de velopment without prior notification We also reserve the right to discontinue production amp delivery of product 39 9 Meter Dimension 96mm Front L1 17mm 40 SSSSSS Fe EL 86mm 86mm Rear 41 10 Appendix 10 1 DEMAND CALCULATION Demand parameters are used to show average values over a demand interval This power meter using sliding block method The demand value is based on interval divide by sub interval time Example is shown below SETTING Interval time 180 seconds sub interval 3 Measurement interval time sub interval 180 3 60 seconds EEn i sl i lt 60s s2 lt 60s ta 4 60s s4 60s Los 60s UM i i HT S i p i i ti 3
3. Read Only Function 0x03 or 0x04 Regis Description Unit Range Type ter 4018 Total power factor 0 001 0 to 1 000 Unsigned integer 4019 Frequency 0 01Hz 45 to 65 Unsigned integer 4020 Instantaneous 0 001A 0 005 to 15 Unsigned 4021 Current L1 secondary integer 4022 Instantaneous 0 001A 0 005 to 15 Unsigned 4023 Current L2 secondary integer 4024 Instantaneous 0 001A 0 005 to 15 Unsigned 4025 Current L3 secondary integer 4026 Instantaneous 0 001A 0 010 to 15 Unsigned 4027 Current Ln secondary integer 4028 Voltage Phase L12 0 1V 20 0to 520 Unsigned 4029 secondary integer 4030 Voltage Phase L23 0 1V 20 0 to 520 Unsigned 4031 secondary integer 4032 Voltage Phase L31 0 1V 20 0to 520 Unsigned 4033 secondary integer Read Only Function 0x03 or 0x04 Regis Description Unit Range Type ter 4034 Voltage Phase L1 0 1V 10 0 to 300 Unsigned 4035 secondary integer 4036 Voltage Phase L2 0 1V 10 0 to 300 Unsigned 4037 secondary integer 4038 Voltage Phase L3 0 1V 10 0 to 300 Unsigned 4039 secondary integer 4040 Real Power L1 IW 2000M to Signed 4041 2000M integer 4042 Real Power L2 IW 2000M to Signed 4043 2000M integer 4044 Real Power L3 IW 2000M to Signed 4045 2000M integer 4046 Apparent Power LI IVA 2000M to Signed 4047 2000M integer 4048 Apparent Power L2 IVA 2000M to Signed 4049 2000M integer 4
4. should be installed in a suitable electrical enclosure Failure to follow this instruction may result in serious injury CONTENTS 1 Parts of Power Meter 2 Installation Guide 2 1 Mounting 2 2 Wiring 3 Display and Buttons Function 5 Setting up 5 1 Access programming mode 5 2 Setup CT ratio 5 3 Setup PT ratio 5 4 Neutral current 5 5 Scroll mode 5 6 Reset all energy register 5 7 Reset on hour 5 8 Setup communication configuration 5 9 Remote set 5 10 LCD Backlight setting 5 11 Demand setting 5 12 Maximum demand clear SAR 5 13 System configuration 5 14 Clear full energy sign 5 15 Exit from programming mode 5 16 Setup the password Specifications Modbus table Maintenance and troubleshooting Meter dimensions Appendix 10 1 Demand calculation 24 25 26 27 29 32 39 40 42 42 FIGURES E b or Parts of the power meter Panel cut out 3 phase 4 wire system with 4 CTs 3 phase 4 wire system with 3 CTs 3 phase 3 wire with 3CTs and 3VTs 3 phase 3 wire with 2CTs and 3VTs Menu map for the normal mode Flow map for the programming mode Automatic display scrolling MN NS 0 amp We 10 16 1 Parts of the Power Meter Figure 1 Parts of the power meter Table 1 Meter Parts Number Description Auxiliary Meter auxiliary power supply power supply input Voltage input RS485 port Retainer clip Metering voltage connection Metering current con
5. 050 Apparent Power L3 IVA 2000M to Signed 4051 2000M integer Read Only Function 0x03 or 0x04 ter 4052 Reactive Power LI IVAR f 2000Mto Signed 4053 2000M integer 4054 Reactive Power L2 IVAR f 2000Mto Signed 4055 2000M integer 4056 Reactive Power L3 IVAR 2000Mto Signed 4057 2000M integer Na reserved always return 0 4064 Real Power De 1w 2000M to Signed 4065 mand 2000M integer 4066 Maximum Real IW 2000M to Signed 4067 Power Demand 2000M integer pg reserved always return 0 4082 THD Current LI 0 1 0 to 1000 Unsigned integer 4083 THD Current L2 0 1 0 to 1000 Unsigned integer 4084 THD Current L3 0 1 0 to 1000 Unsigned integer 35 Read Only Function 0x03 or 0x04 Regis Description Unit Range Type ter 4085 THD Voltage L1 0 196 0 to 1000 Unsigned integer 4086 THD Voltage L2 0 196 0 to 1000 Unsigned integer 4087 THD Voltage L3 0 196 0 to 1000 Unsigned integer Read Only Function 0x03 or 0x04 Energy full flag bit 7 to 5 reserved bit 4 negative kVARh bit 3 negative kWh bit 2 kVAh bit 1 positive KVARh bit 0 positive kWh 36 Read CRDI E 0x03 or 0x04 meer Dem Ju B reserved 37 Read or write Function 0x03 0x04 or 0x06 Register Description Range 100 33kV 100 120V 5 8000A reserved always return 0 0 or 1 0 or 1 0 59 0 23 0 9999 100 PT ratio primary 101 PT ratio secondary 102 CT ratio primary 103 108 109 110
6. 5 17 5 7 RESET ON HOUR e 0 oo a Scroll in programming mode until rSEt onHr is displayed using the or the button This function is to clear on hour register Press the button The PROG symbol will blink Use the or button to toggle YES or NO symbols To abort clearing on hour register select NO To clear on hour register select YES Press the button to temporarily confirm To proceed to the next setting press the 7 button To exit programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 18 5 8 SETUP COMMUNICATION CONFIGURATIONS 24 20 Scroll using the Sor button until the COM symbol is displayed b Press the button The PROG and id symbols will blink Press the 2 or button to change the device ID Next press the button and the r and PROG symbols will blink Use the or button to select the baudrates d Next press the button and the P and PROG symbols will blink Use the or button to select the parity bit Press the button to temporarily confirm the new setting v e rm o To proceed to the next setting press the button g To exit programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section
7. 5 15 NOTE Default value for the communication ID is 0001 baudrate is 38400 bps and parity set to none 19 5 9 REMOTE SET sa mhona g Scroll in programming mode until rMt SEt is displayed D g g play using the or the button Pressthe 6 button The PROG symbol will blink To change press the 2 or button To enable remote set select EnbL To disable remote set select dSbL Press the button to temporarily confirm the new setting To proceed to the next setting press the 7 button To exit programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 NOTE Enabling the remote set allows the remote terminal to read and write the meter setting via Modbus RTU otherwise the setting data can only be read 20 5 10 LCD BACKLIGHT SETTING a Scroll in programming mode until lcd beLt is displayed using the or the button b This setting allows user to turn on the backlight permanent ly or turn off backlight automatically after 5 minutes idle c Press the button The PROG symbol will blink d Use the or button to toggle symbols on or oFF e Select on for permanently on or oFF for automatically off f Press the button to temporarily confirm the new setting g To proceed to the next setting press the 7 button h To ex
8. O e Mikro Digital Power Meter User Manual DPM380 DPM380B nr LUUL nn bun 3 LULU HAZARD CATAGORIES AND SPECIAL SYMBOL Read all instructions carefully and check the device before installation The following safety alert symbol may appear throughout this manual or on device to warn any potential hazards or to call for attention PLEASE NOTE The power meter should be installed operated serviced and maintained only by qualified personnel No responsibility is assumed by the manufacturer for any consequences arising out of the use of this material BEFORE YOU BEGIN Apply appropriate personal protective equipment and follow safe electrical work practices NEVER work alone Turn off all power supplying the power meter and the equipment in which it is installed before working on it Always use a properly rated voltage sensing device to confirm that all power is off Before closing all covers and doors carefully inspect the work area for tools and objects that may have been left inside the equip ment NEVER bypass external fusing NEVER open circuit a CT use the shorting block to short circuit the leads of the CT before removing the connection from the power meter Before performing hi pot testing on any equipment in which the power meter is installed disconnect all input and output wires to the power meter High voltage testing may damage electronic components contained in the power meter The power meter
9. SOT var EST Evar 4 ok Oo EEN EEEN A ojo Hour MS Hours Minutes Ph Ph ae V12 V23 Ph Ph Voltage V12 V23 V31 Ph N Ph N Voltage L1 L2 L3 L2 L3 ol Figure 7 Menu map for normal mode 9 Figure 8 Menu map for programming mode PRESS PROG Enter Password Primary CT Ratio Setting To change the value range 5 8000A j Fo change tne value rango 100 33kV for PT Rallo Setting primary and 100 120V for secondary Neutral Current Setting Ln ase refer section 5 1 to enter password To enable neutral current display on o a To enable scrolling normal mode display when idle on off To reset the value no or yes To reset the values no or yes Communication Config gt To configure meter ID Baudrate Parity oio oio System Configuration posses configuration for 3 phase 3 wire or gt 3 phase 4 wire To enable the setting enable or disable To enable setting dimming after 3 minutes idle To configure interval and sub interval time i Full Sign Energy Clear gt To clear full warning sign no or yes ojo Only display when one of the energy accumulation full 10 TUM 5 Setting up This section explains how to set up the power meter 5 1 ACCESS PROGRAMMING MODE a Press the button to enter programming mode The user will be prompted to key in the passwo
10. al Accuracy 1 Freguency measurement Range 45 65Hz Accuracy 0 5 Energy measurement Active IEC62053 21 Class 1 Reactive 1EC62053 23 Class 2 Demand measurement Total Real Power Only Demand interval 60 to 1800 seconds Demand sub interval 1 to 120 Communication Hardware Interface Isolated RS485 Protocol Modbus RTU D 1 to 127 Baudrate 2400 4800 9600 19200 38400 0 Auxiliary Supply Operating Temperature Storage Temperature Operating time on hour Up to 9999 days 23 hours 59 minutes LCD view area Weigh Part 6 2 Generic Standards Immunity for industrial envi IEC61000 6 2 ronments Part 6 4 Generic Standards Emission standard for indus IEC61000 6 4 trial environments 31 7 Modbus Table Read Only Function 0x03 or 0x04 Regis Description Unit Range Type ter 4000 Negative real 1kWh 0 999999 99M Unsigned 4001 energy integer 4002 Positive real 1kWh 0 999999 99M Unsigned 4003 energy integer 4004 reserved always return 0 4005 4006 Apparent energy Ik VAh 0 999999 99M Unsigned 4007 integer 4008 Negative reactive Ik VArh 0 999999 99M Unsigned 4009 energy integer 4010 Positive reactive IkVArh 0 999999 99M Unsigned 4011 energy integer 4012 Total real power 1W 2000M to Signed 4013 2000M integer 4014 Total apparent 1VA 2000M to Signed 4015 power 2000M integer 4016 Total reactive IVAR 2000M to Signed 4017 power 2000M integer
11. e button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 NOTE This is only displayed when either one of the energy reaches the maximum limit 25 5 15 EXIT FROM PROGRAMMING MODE la Mun EZ rm rr LC JC LI Lh dow The SAVE CHG display will appear b Use the or button to select YES or NO sym bols c To exit without saving the modified value select NO d To exit and save the modified value select YES e To confirm press the 5 button Meter will exit from programming mode 26 Press the and buttons simultaneously until the pass word ID request window is displayed Key in the current password Refer to section 5 1 on how to do this After pressing the button the new id window will be displayed At this stage the user needs to key in the new password Use the or button to change the digit value and the button to shift to next digit Once confirmed press the 3 button 27 Next the new password will be displayed Use the or buttons to toggle the YES and NO symbols Once confirmed press the button and the meter will return to normal display mode c 28 6 Specification ENEN Three phase current amp neutral selectable SA ondary GA 100 105 110 115 120 noPT 9 2 Power factor measurement Display each phase amp tot
12. ed to confirm the saving of settings if change is made Refer section 5 15 5 13 SYSTEM CONFIGURATION ano Scroll in programming mode until SY St ConF is dis played using the C or the C button This setting allows user to set the meter configuration Press the button The PROG symbol will blink Use the Q or button to toggle symbols 3P3r for 3phase 3 wire or 3P4r for 3 phase 4 wire e Press the button to temporarily confirm the new setting To proceed to the next setting press the 7 button To exit programming mode press the amp button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 24 5 14 CLEAR FULL ENERGY SIGN somo and ji Full condition in display mode OPOE 00068 Z Scroll in programming mode until EnFL SiCL is dis played using the or the button This function is to allow the user to clear the full A symbol This will happen when an energy display reaches the maximum limit 999999 99 Mega unit Press the button The PROG symbol will blink Use the or button to change symbol YES or NO To abort clearing full energy sign select NO To clear all full energy sign select YES Press the button to temporarily confirm To proceed to the next setting press the 7 button To exit programming mode press th
13. it programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 21 5 11 DEMAND SETTING ads Scroll i orbe bU mode until dMd is displayed us ing the Oor the button This setting allows user to set the demand configuration Press the button The PROG and i symbol will blink Use the Qor O button to change value for interval demand The range is 60 to 1800 seconds Press the button to temporarily confirm the new setting And the PROG and S symbol will blink Use the or button to change value for sub interval Once confirm press the 6 button to temporary save To exit programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 22 5 12 MAXIMUM DEMAND CLEAR e 0 mo A Scroll in programming mode until CLr dMd is displayed using the or the button This function is to clear maximum demand value Press the button The PROG symbol will blink Use the or button to toggle YES or NO symbols To abort clearing maximum demand value select NO To clear maximum demand value select YES Press the 5 button to temporarily confirm To proceed to the next setting press the 7 button To exit programming mode press the f button The user will be prompt
14. nection RS485 connection for Modbus RTU Clip to hold meter in cut out hole Model Information DPM380 415AD Auxiliary 90 415VAC or 100 300VDC with RS485 DPM380B 415AD Auxiliary 90 415VAC or 100 300VDC without RS485 2 Installation Guide 2 1 MOUNTING a Insert the power meter through a 91mmx91mm or 101 6mm radius hole as shown in figure 2 below or 91 0 5mm 91 0 5mm Figure 2 Recommended panel cut out b Slide the retainer clip along the slots on both sides of the power meter until the device is tightly secured on the switch gear panel The retainer clip can be removed by lifting the tab lightly at the handle end 2 2 WIRING AN Polarity marks must be followed as shown for CTs S1 and S2 L1 L2 L3 Ln 7 90 415 V AC AUX 100 300vDC 51 11 52 ig 52 S1 13 eS2 Loss RS 485 TN Modbus RTU 52 ee GND r XXX ET eT E 12 PEM MEKE L3 Not applicable DH for DPM380B pe Ln LOAD Figure 3 3 phase 4 wire system with 4CTs connection direct voltage input L1 L2 L3 Ln 90 415 V AC 9100 300 V DC 51 S2 S1 52 S1 113 eS2 1 12 J RS 485 Modbus RTU In Le S2 Not applicable for DPM380B LOAD Figure 4 3 phase 4 wire System with 3CTs connection direct voltage input TE Neutral current measurement is ba
15. rd b Use the or button to change the value and the button to shift to next number The default password is 0000 C Press the button to confirm and enter programming mode Setup CT ratio display will appear with the PROG symbol If the password is incorrect the meter will return to normal mode d To exit without setting press the button and display will return to normal mode 11 5 2 SETUP CT RATIO a CT ratio setting is the first item display in programming mode Press the button to change The PROG symbol will blink Use the or button to change the primary CT value Press the button to temporarily confirm the new setting o To proceed to the next setting press the button To exit programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 mono 12 5 3 SETUP PT RATIO 0088 Scroll in programming mode until Pt is displayed using the or the button Press the button The PROG and P symbol will blink c Use the Z or Q button to change the primary PT value a m ga te Press the button and the S symbol will blink to change setting secondary PT ratio Use the or button to change the secondary PT value Press the button to temporarily confirm the new setting To proceed to the next setting press the 7 b
16. sed on the vector sum of 3 CTs L1 L2 L3 90 415VAC 100 300 V DC S1 I 52 S1 S2 S1 GND sle gt LOAD el Cal pe L3 n GND eS2 esi s2 RS 485 Modbus RTU Not applicable for DPM380B Figure 5 3 phase 3 wire with 3CTs and 3VTs connection L1 L2 L3 90 415 V AC AUX RS 485 Modbus RTU Not applicable for DPM380B LOAD GND Figure 6 3 phase 3 wire with 2CTs and 3VTs connection 3 Display and Buttons Digital Power Meter DPM 380 A PROGTOTAL 20000 ELL NWA m t El n Di tous III VVA a El El ih FB MA a Power Factor Indicator g DOWN button b Capacitive Inductive Indicator h PROG button c Phase Indicator i 4 digit display d Neutral Line Indicator j Unit Indicator e NEXT button k RS485 Setting Indicator f UP button l Warning Sign Indicator 4 Function Figure 7 below shows menu map for the power meter It includes the setting and measurement display for the power meter These menus can be accessed by pressing NEXT UP PROG DOWN buttons rm yO o Current L1 L2 L3 Neutral Current Ln oio Frequency Hz and Power Factor PF PERPE PES ES O vanvan Mars VAr VA3 P O Total Power Demand W Max Total Power Demand W Total Power W VAr VA AO y 0 29 roses
17. t setting press the button g To exit programming mode press the amp button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 NOTE The scroll mode display flow as shown in figure 9 15 THD Current L1 L2 L3 Voltage V THD Voltage Ph Ph Voltage V otal Reactive Ph N E Total Real Current A L1L213 Energy r Current A Total Apparent Ln Energy kVAh Total Reactive Energy kVARh Total Power Factor and Frequency Power Factor L1 L2 L3 Power Total Max Tatal kW kVAR kVA Demand kW Total Real Energy kWh 4 4 Real kW Total Demand L1 L2 L3 KW Reactive kVar Apparent kVA L1 L2 L3 L1 L2 L3 Figure 9 Automatic display scrolling 16 5 6 RESET ALL ENERGY REGISTER e s 0 mo a Scroll in programming mode until rSET EnEr is dis played using the or the button This function is to clear all energy register Press the 6 button The PROG symbol will blink Use the or button to toggle YES or NO symbols To abort clearing energy register values select NO To clear all energy register values select YES Press the button to temporarily confirm To proceed to the next setting press the 7 button To exit programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section 5 1
18. utton To exit programming mode press the 9 button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 NOTE For direct voltage input secondary PT set to noPt 13 5 4 NEUTRAL CURRENT L on a Scroll in programming mode until Ln is displayed using the Q or button b This parameter allows the user to display neutral current if the neutral current input In is connected c Press the button to change The PROG symbol will blink d Press the or button to toggle the symbol on for en able or oFF for disable e Press the button to temporarily confirm the new setting f To proceed to the next setting press the button g To exit programming mode press the button The user will be prompted to confirm the saving of settings if change is made Refer section 5 15 NOTE Neutral current measurement will be disabled when the system configuration is set to 3P3W 14 5 5 SCROLL MODE Serl oFF OH 2 e a In programming mode scroll until the SCrL symbol is displayed using the or button b This function enables automatic display scrolling at every 10 second interval time c Press the button The PROG symbol will blink d Use the or button to select the on or oFF sym bols e Press the 6 button to temporarily confirm the new setting f To proceed to the nex
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