Veesta World V-PM2000 Series User manual

Veesta World Co
User’s Manual
V-PM2000 Series
VP-2040 User’s Manual
Enhanced IED, Power Measurement, Power Quality
and Monitoring Device
Author: Veesta World Co., Engineering Department

TRADEMARKS
VEESTA and VEESTA WORLD are trademarks of Veesta World Co. Iran
V-PM2000 is trademarks of Power Measurement system of VEESTA WORLD Co.
NOTICE
The information in this document is subject to change without notice and should not
be construed as a commitment by VEESTA WORLD Co. Veesta World Co assumes
no responsibility for any errors that may appear in this document.
In no event shall Veesta World Co be liable for direct, indirect, special, incidental or
consequential damages of any nature or kind arising from the use of this document,
nor shall Veesta World Co be liable for incidental or consequential damages arising
from use of any software or hardware described in this document.
This document and parts thereof must not be reproduced or copied without
Veesta World Co’s written permission and the contents thereof must not be imparted
to a third party nor be used for any unauthorized purpose.

VP-2040 Enhanced IED Document History
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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DOCUMENT HISTORY
Version Date Comment
1.0 2017/07/18 First issue
1.1 2019/08/18 Add CT information

VP-2040 Enhanced IED Table of Content
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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TABLE OF CONTENT
Chapter 1 - Introduction..................................................................... 9
1.1 General Information...............................................................9
1.2 Features ..............................................................................10
1.2.1 Characteristics .........................................................10
1.2.2 Standard features ....................................................11
1.2.3 Metering...................................................................11
1.2.4 Set-points to Alarms.................................................12
1.2.5 Communications ......................................................12
1.2.6 Upgrade to future expansion....................................12
1.3 Power Conventions .............................................................13
1.3.1 Measured parameters..............................................13
1.4 IED Options .........................................................................14
1.4.1 Option ......................................................................14
1.5 Power analysis ....................................................................14
1.5.1 Harmonic Analysis ...................................................14
1.5.2 Event Logger ...........................................................15
1.6 VP-2040 IED Software Tools program ................................15
Chapter 2 - Model & Ordering.......................................................... 16
2.1 Overview .............................................................................16
Chapter 3 - Specifications................................................................ 17
3.1 VP-2040 Specifications .......................................................17
3.1.1 Measured Power Parameters ..................................17
3.1.2 Main AC Power input ...............................................17
3.1.3 Measuring Accuracy ................................................18
3.1.4 Optional Auxiliary Monitoring ...................................19
3.1.5 Communication Port ................................................19
3.1.6 Alarms trip set-point.................................................19
3.1.7 Data Logger Feature................................................20
3.1.8 Standards ................................................................20
3.1.9 Environment.............................................................21
3.1.10 Power Supply.........................................................21
3.1.11 Dimension / Physical..............................................21
Chapter 4 - Measuring Capability .................................................... 22
4.1 Real-time based Electrical Parameters ...............................22
4.2 Power Factor Symbols ........................................................23

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V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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4.3 Demand Parameters ...........................................................24
4.4 Energy Parameters .............................................................25
4.5 Harmonic Parameters .........................................................26
Chapter 5 - IED Capability................................................................ 27
5.1 Status Input .........................................................................27
5.2 Relay Output .......................................................................28
5.3 Pulse Output........................................................................30
5.4 Analog Output .....................................................................32
5.5 Alarm System ......................................................................34
5.6 Sequence of Event (SOE) Log ............................................36
Chapter 6 - Unit Installation ............................................................. 37
6.1 Unit Observation..................................................................37
6.2 Terminal Definitions.............................................................37
6.2.1 Base Terminal Definitions ........................................38
6.2.2 Expansion Option A: 4x Status + 4x Relay ..............39
6.2.3 Expansion Option B: 8x Status + 2x Relay ..............40
6.2.4 Expansion Option E: 8x Status + 2x Pulse ..............41
6.2.5 Expansion Option P: PROFIBUS Communication ...42
6.3 Power Supply Connection ...................................................43
6.4 Voltage to PT inputs ............................................................44
6.5 Current to CT inputs ............................................................44
6.6 Shielding Ground.................................................................45
6.7 RS485 Communication Wiring ............................................45
6.8 Wiring Diagrams..................................................................47
6.8.1 High Voltage, 3 Phase, 4 Wires, Star, 3PT/3CT ......47
6.8.2 High Voltage, 3 Phase, 3 Wires, Delta, 2PT/3CT ....48
6.8.3 High Voltage, 3 Phase, 3 Wires, Delta, 2PT/2CT ....49
6.8.4 Low Voltage, 3 Phase, 4 Wires, Star, 3CT...............50
6.8.5 Low Voltage, 3 Phase, 3 Wires, Delta, 3CT.............51
6.8.6 Low Voltage, 3 Phase, 3 Wires, Delta, 2CTs ...........52
6.9 Dimensions..........................................................................53
6.10 Application Configuration Sample .......................................54
Chapter 7 - Unit Front Panel Operation........................................... 55
7.1 Unit Observation..................................................................55
7.1.1 Display and Keys .....................................................55
7.1.2 Key pad function ......................................................57
Chapter 8 - Protocol and Communication ...................................... 58
8.1 PLC Modbus® Compatible..................................................58
8.2 Comprehensive System Integration ....................................58
8.3 Transmission Mode .............................................................58
8.3.1 Slave Address..........................................................59
8.3.2 Function Code .........................................................59

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8.3.3 Data .........................................................................59
8.3.4 CRC .........................................................................59
8.3.5 Protocol....................................................................59
8.4 Modbus Framing .................................................................60
8.4.1 Address Field...........................................................60
8.4.2 Function Field ..........................................................60
8.4.3 Data field..................................................................60
8.4.4 Error Check filed ......................................................61
8.4.5 Error Detection.........................................................61
8.4.6 CRC-16 Algorithm....................................................62
8.5 Supported Function Codes..................................................63
8.5.1 Function Code 3 (03H) - Read Holding registers .....63
8.5.2 Function Code 5 (05H) - Execute Operation............64
8.5.3 Function Code 16 (10H) - Write multiple registers ...65
8.6 Error responses...................................................................67
Chapter 9 - Register Map Profile ..................................................... 68
9.1 Introduction..........................................................................68
9.2 Summary of Data Conversion .............................................68
9.3 Memory Map Data Format...................................................70
9.4 Memory Map Register Table ...............................................78
Chapter 10 - Troubleshooting............................................................ 98
10.1 Introduction..........................................................................98

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Instructions & User's Manual
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TABLE OF FIGURES
Figure 1-1: VP-2040 E-IED Metering Conventions....................................................13
Figure 2-1: VP-2040 Models & Ordering ...................................................................16
Figure 4-1: VP-2040 Power Factor Symbols .............................................................23
Figure 4-2: VP-2040 Power Factor Symbols .............................................................24
Figure 5-1: VP-2040 Status Input Capability .............................................................27
Figure 5-2: VP-2040 Relay Output Capability............................................................28
Figure 5-3: VP-2040 Pulse Output Capability............................................................30
Figure 5-4: VP-2040 Analog Output Capability..........................................................32
Figure 6-1: VP-2040 Unit Observation ......................................................................37
Figure 6-2: VP-2040 Terminal Definitions .................................................................37
Figure 6-3: VP-2040 Power Supply Control ..............................................................43
Figure 6-4: VP-2040 RS-485 Communication Wiring ................................................46
Figure 6-5: VP-2040 H.V. Wiring, 3 phase 4 wires Start, 3PT/3CT ...........................47
Figure 6-6: VP-2040 H.V. Wiring, 3 phase 3 wires Delta, 2PT/3CT ..........................48
Figure 6-7: VP-2040 H.V. Wiring, 3 phase 3 wires Delta, 2PT/2CT ..........................49
Figure 6-8: VP-2040 L.V. Wiring, 3 phase 4 wires Start, 3CT ...................................50
Figure 6-9: VP-2040 L.V. Wiring, 3 phase 3 wires Delta, 3CT ..................................51
Figure 6-10: VP-2040 L.V. Wiring, 3 phase 3 wires Delta, 2CT.................................52
Figure 6-11: VP-2040 Dimension & Panel cut out .....................................................53
Figure 6-12: VP-2040 Sample Application Diagram ..................................................54
Figure 7-1: VP-2040 Front Panel Descritions ............................................................55

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Instructions & User's Manual
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INDEX OF TABELS
Table 1-1: VP-2040 Set-points condition table ..........................................................12
Table 4-1: VP-2040 Electrical Parameters ................................................................22
Table 4-2: VP-2040 Demand Parameters .................................................................24
Table 4-3: VP-2040 Energy Parameters ...................................................................25
Table 5-1: VP-2040 Analog Output Parameters ........................................................32
Table 5-2: VP-2040 Alarm System Capability ...........................................................34
Table 5-3: VP-2040 SOE Capability ..........................................................................36
Table 6-1: VP-2040 Base Terminal Definitions..........................................................38
Table 6-2: VP-2040 4x Status + 4x Relay Expansion Terminal Definitions ...............39
Table 6-3: VP-2040 8x Status + 2x Relay Expansion Terminal Definitions ...............40
Table 6-4: VP-2040 8x Status + 2x Pulse Expansion Terminal Definitions ...............41
Table 6-5: VP-2040 PROFIBUS Communication Expansion Terminal Definitions....42
Table 6-6: VP-2040 Recommendation for choosing CTs ..........................................44
Table 7-1: VP-2040 Key Pad Functions ....................................................................57
Table 8-1: VP-2040 Modbus conventions table.........................................................58
Table 8-2: VP-2040 Modbus Function Codes............................................................60
Table 8-3: VP-2040 Modbus Exception Codes..........................................................67
Table 9-1: VP-2040 Data Conversion Formula..........................................................69
Table 9-2: VP-2040 Data Format types.....................................................................70
Table 9-3: VP-2040 Input Registers, Read Only Data...............................................79
Table 9-4: VP-2040 Holding Registers, Read/Write Data..........................................90
Table 9-5: VP-2040 Coil Registers, Write Data, Execution Command ......................96
Table 10-1: VP-2040 Troubleshooting.......................................................................98

VP-2040 Enhanced IED Chapter 1 - Introduction
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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Chapter 1 - Introduction
1.1 General Information
The power quality meter as Enhanced IED VP-2040 is an ideal
device to power monitoring in power quality when continuous
monitoring to a power system is required.
The VP-2040 provides metering for current, voltage, real and reactive
power, power energy, power factor, frequency energy demand.
Programmable set-points and optional assignable output relays allow
control functions to be added for specific applications. This includes
basic alarm on over/under current or voltage, unbalance, demand
based load shedding, and capacitor power factor correction control.
More complex control is possible using the 8 switch inputs which also
can be used for status such as breaker open/closed, or optional
pulse counter to flow information or demand synchronized trigger and
etc.
The provided measurement to main of AC power and digital inputs
and digital outputs, the VP-2040 may be used as a data gathering
device for a plant automation system that integrates process,
instrument and electrical requirements. All monitored values are
available via digital communication ports RS485 running the
ModBus® protocol. If analog values are required for direct interface
to a PLC, and of the monitored values can be output to one analog
output and 2 pulse outputs.
The quality of the power system is important with increasing use of
electronic loads such as switching power or variable frequency
drives. With the VP-2040 auxiliary input/output, any phase
current/voltage can be displayed and the harmonic content
calculated. By knowing the harmonic distribution, action can be taken
to prevent overheated transformer, motors, capacitors, neutral wires
and nuisance breaker trips. Redistribution of system loading can also
be determined. Waveform and chart recorder printouts available from
the VP-2040 assist in problem diagnosis.

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Instructions & User's Manual
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1.2 Features
VP-2040 is a multi-functional power meter, integrating data
acquisition and control into a whole. It can take the place of
numerous meters, relays, transducers, and other components.
Besides, it can be used in electric power systems of various voltage
classes.
VP-2040 provides one RS485 communication port, so it can be
integrated into any electric power monitoring system. The
management software or other configuration software with which it is
equipped enables the setting to be carried out easily. Furthermore, it
provides an optional PROFIBUS communication port, whose
1.5Mbps communication speed can fully meet the demand for
obtaining real-time data on the site.
VP-2040 is really a measuring meter based on true effective values,
able to carry out accurate measurement of highly non-linear loads.
The complicated sampling technology enables it to measure true
effective values up to the 31st harmonic. The user can read remotely
some dozens of measured values and minimum/maximum values on
a display screen or via software.
VP-2040 provides multiple extension modules and advanced
software functions to meet the demands of different sites. Its flexible
DI/DO configuration facilitates the design of the user.
VP-2040 adopts connection realized by terminals that can be pulled
out and inserted, thus facilitating on-site wiring and maintenance.
Especially for the parts to which current is inputted, VP-2040 uses
lockable fixation connections to prevent dangers that may be caused
by accidental coming off of connections.
1.2.1 Characteristics
 Metering of distribution feeders, transformers, generators,
capacitor bands and motors
 Medium and low voltage systems
 Achieving the class-1 measuring accuracy stipulated by IEC
62053, with bidirectional four-quadrant energy values
 High-accuracy measurement of current and voltage (0.1%)
(typical situation).
 Commercial, industrial, utility
 Flexible control for demand load shedding, power factor, etc.
 Power quality analysis
 A / W / Var / VA demand
 8 digital inputs

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Instructions & User's Manual
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 2 controlled relay outputs
 1 analog output to a transducer function
 2 pulse outputs based on KWH, KVarH, KVAH or AH
 50 SOE Event log records
 Minimum / maximum logger
 harmonic analysis through 31rd
 Triggered memory (Fault recording)
 Demand calculation and maximum recording.
 Build-in clock
 Large high-contrast LCD screen, easy for operating and
setting with password lock
 RS485 serial port
 ModBus® RTU protocol
1.2.2 Standard features
The VP-2040 of panel mount type with display is easy to local
interface. Standard models offer RS485 ModBus® communications
for programming and monitoring. To replace expensive additional
devices as control output, transducer output and power analysis use
with auxiliary I/O monitoring can be required to the VP-2040 option
series.
1.2.3 Metering
Each voltage and current is sampled 64 times per cycle for 0.2%
accuracy true RMS measured values.
 Ia, Ib, Ic, In
 Va, Vb, Vc, Vab, Vbc, Vca
 W, Var, VA, total & individual
 Hz & phase rotation sequence
 Current & Voltage Unbalance
 True PF & K factor
 WH, VarH
 Demand: A, W, Var, VA
A keyboard and light contrast LCD display module are used for field
programming, setup monitoring values and status.

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Instructions & User's Manual
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1.2.4 Set-points to Alarms
Any of the assignable output relays may be used to trigger and alarm
for specific applications.
Table 1-1: VP-2040 Set-points condition table
Condition Application
Over current Motors / transformers
Under current Pumps / compressors
Over load Motors / transformers
Over line voltage Equipment protection
Under line voltage Motors / load transfer
Over phase voltage Equipment protection
Under phase voltage Motors / load transfer
Phase lost Pumps / equipment
Over frequency Generators
Under frequency Load shedding
Switch input Process control
1.2.5 Communications
Integrate process, instrumentation and electrical requirements in a
plant automation system by connecting VP-2040 meters together to a
DCS or SCADA system. A PC running the VP-2040 can change
system set-points, monitor values, status and alarms. Continuous
monitoring minimizes process downtime by immediately identifying
potential problems due to faults or changes from growth.
 RS485 ModBus® 4,800; 9600; 19,200; 48,400 bps
 RTU SCADA system component
 Measure actual values
 Read status
 Issue control commands
 Load all set-points
 Change individual set-points
1.2.6 Upgrade to future expansion
The VP-2040 has ability to expansion module during ordering. Bellow
type of expansion module can be order:
 Option A: 4 x Status inputs + 4 x Relay outputs
 Option B: 8 x Status inputs + 2 x Relay outputs
 Option E: 8 x Status inputs + 2 x pulse outputs
 Option P: PROFIBUS communication module

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V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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1.3 Power Conventions
Based on bellow diagram the VP-2040 can calculate all of power
electric parameters that used in industry.
Figure 1-1: VP-2040 E-IED Metering Conventions
1.3.1 Measured parameters
VP1 / VP2 / VP3 3 phase, phase to neutral voltage
VPE Average of VP1 / VP2 / VP3
VL1 / VL2 / VL3 3 phase, line to line voltage
VLE Average of VL1 / VL2 / VL3
A1 / A2 / A3 / A0 3 phase and neutral current
AE Average of A1 / A2 / A3
W 3 phase total active power
W1 / W2 / W3 3 phase individual active power
Q 3 phase total reactive power
Q1 / Q2 / Q3 3 phase individual reactive power
VA 3 phase total apparent power
VA1 / VA2 / VA3 3 phase individual apparent power
Power Meter VP-2040 IED
B
C
M
A

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Instructions & User's Manual
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WH (±) 3 phase active energy
VarH (±) 3 phase reactive energy
PF 3 Phase total power factor
PF1 / PF2 / PF3 3 phase individual power factor
Frequency Line frequency
Vubl / Aubl % unbalance to 3 phase V and A
WD Watt demand
QD Var demand
SD Apparent demand
Status Switch status input DI1 to DI8
1.4 IED Options
The provided measurement to main of AC power and auxiliary of
digital inputs, digital outputs, analog output, the VP-2040 may be
used as a data gathering device for a plant automation system that
integrates process, instrument and electrical requirements. All
monitored values are available via RS485 digital communication
ports running the ModBus® protocol.
1.4.1 Option
Bellow options can be order for IED options in hardware and
software view of product:
 Status inputs: status inputs with internal DC24V powered
can be configured to 4 or 8 status inputs (breaker condition).
 Analog outputs: one analog output can be used to replace
analog transducers. Output signal can be selected from any
of the measured parameters.
 Energy pulse outputs: 2 energy pulse outputs of WH and
VarH can be used to energy management or used to replace
energy transducer.
 Relay outputs: many alarm set-points with 2 or 4 relay
control output or command output for breaker. The relay
output can be operating in local mode (alarm set point) or in
remote mode to receive commands from remotes.
1.5 Power analysis
1.5.1 Harmonic Analysis
Non linear loads such as variable speed drives, computers and
electronic ballasts can cause harmonics which may lead to problems
such as nuisance breaker tripping, telephone interference,
transformer, capacitor or motor overheating. For fault diagnosis such
as detecting undersized neutral wiring, need for a harmonic rated
transformer, or effectiveness of harmonic filters, details of the

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harmonic spectrum are useful and available with the power analysis
option.
1.5.2 Event Logger
Alarms, set-point triggers, input and output events can be stored in a
50 event record and time / date stamped by the internal clock. This is
use full for diagnosing problems and system activity. Minimum and
maximum values are also continuously up dated.
1.6 VP-2040 IED Software Tools program
The VP-2040 IED Tool is PC program in Windows based program for
the VP-2040. It can be used to enter set-points, read metered values,
monitor status and evaluate power quality. All data continuously
gathered by the VP-2040 can be transferred to a third party software
program for display, control or analysis via the communications
interface.
Once all set-points have been entered they can be downloaded into
any VP-2040 or stored in a file with a tag name for later reference.
Screens are available for monitoring all measured values such as
current, voltage or power. Status of alarms and control settings can
also be displayed.
Harmonic analysis may reveal excessive harmonic content requiring
a dreaded transformer or larger neutral wire. Early warning of these
problems can prevent equipment damage or nuisance breaker
tripping.

VP-2040 Enhanced IED Chapter 2 - Model & Ordering
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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Chapter 2 - Model & Ordering
2.1 Overview
The VP-2040 Enhanced-IED has some models that during product
ordering shall be defined about desired model. In the figure bellow
you can see model and ordering forms.
Figure 2-1: VP-2040 Models & Ordering
VP-2040-L
1A
380V
B
N
C
Current Input (CT)
1A: 1.0A rated input
5A: 5.0A rated input
Voltage Option (PT)
100V: 57.7V(p-n), 100V(p-p) rated input
380V: 220V(p-n), 380V(p-p) rated input
Software Option
N: No Option
A: Analysis of the 31
st
harmonic of I, V, THD
and K-factor
B: SOE event logger
C: Option A & B
Option
N: No Option (50Hz)
A: 60 Hz Operation
B: 1 x Analog output
C: Option A & B
Power
H: AC85~265V, DC80~300V
L: DC18~75V
Expansion Option
N: No Option
A: 4 x Status inputs + 4 x Relay outputs
B: 8 x Status inputs + 2 x Relay outputs
E: 8 x Status inputs + 2 x pulse outputs
P: PROFIBUS communication module

VP-2040 Enhanced IED Chapter 3 - Specifications
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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Chapter 3 - Specifications
3.1 VP-2040 Specifications
3.1.1 Measured Power Parameters
1. Display : All measured display scaled to primary readout
- Display 4 digits to V / A / W / Var / VA / PF
- Display 9 digits to WH / VarH
All Status Input/Output and communication
All Demand, Harmonic data
All Setting and programmable options
2. Power Values Display :
& Measurement
True RMS, 1 sec refresh time
VP1 / VP2 / VP3 / VPE, phase to neutral voltage
VL1 / VL2 / VL3 / VLE, line to line voltage
A1 / A2 / A3 / AE/ A0, phase current
VPE / VLE / AE, 3 phase averaged
A0, neutral current
PF1/PF2/PF3, coincident to conversion element
WH / VarH accuracy vs limited input range
Up to 31st harmonic analysis, K factor, THD
3. Display Screen Type : Large Backlit FSTN LCD display / Blue color
3.1.2 Main AC Power input
1. Phase & Wires : 3 phase 4 wires wye 3VTs
3 phase 4 wires wye 2VTs
3 phase 3 wires
2. Input Voltage Range : Option 100V: 57.7V(p-n), 100V(p-p) rated input
Option 380V: 220V(p-n), 380V(p-p) rated input
3. Input Current Range : Option 1A: 1.0A rated input
Option 5A: 5.0A rated input

VP-2040 Enhanced IED Chapter 3 - Specifications
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
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4. Burden : Voltage < 0.2VA at 600V / phase
0.02VA at 120V / phase
Current < 0.1VA at rating
5. Current Overload capacity : 120% x rated continuous
10 x rated 1 seconds
25 x rated 2 seconds / 50 x rated 1 seconds
6. Voltage Overload capacity : 120% rated continuous
2x rated 1 seconds
3.1.3 Measuring Accuracy
1. Voltage : Accuracy: 0.2% Resolution: 0.01 V
Measuring Range:
- Directly: 300Vph-N, 520Vph-ph
- PT primary: 0~499,999V
- PT secondary: 57.7Vph-N, 100Vph-ph
2. Current : Accuracy: 0.2% Resolution: 0.001 A
Measuring Range:
- CT primary: 0~49,999A
- CT secondary: 1 A or 5A
3. Power : Accuracy: 0.5% Resolution: 0.1 W/Var
Measuring Range: Each phase: 0~100 MW/Mvar
4. Power Factor : Accuracy: 0.5% Resolution: 0.001
Measuring Range: -1.000 ~ +1.000
5. Frequency : Accuracy: 0.01 Resolution: 0.01 Hz
Measuring Range: 35~ 65 Hz
6. Active Energy : Accuracy: 1.0% Resolution: 0.1 kWh
Measuring Range: 0~ 99,999,999.9 kWh
7. Reactive Energy : Accuracy: 2.0% Resolution: 0.1 kWh
Measuring Range: 0~ 99,999,999.9 kVarh
8. THD : Accuracy: 1.0% Resolution: 0.001
Measuring Range: 0~100.0%
9. Individual Harmonic : Accuracy: 1.0% Resolution: 0.001
Measuring Range: 0~100.0%
10. Unbalance : Accuracy: 1.0% Resolution: 0.001
Measuring Range: 0~100.0%

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3.1.4 Optional Auxiliary Monitoring
1. Digital Input (DI) : 4 or 8 status input by option choose
Internal powered of DC 30V
Input / dry contact
2. Control Output (CO) : 2 or 4 Relay outputs by option choose
Dry contact form A SPST
Contact material: gold plate silver alloy
Normal operation:
- 220Vac / 30Vdc, 5A resistive
3. Analog Output (AO) : 1 Analog output by option choose
Accuracy, 0.5% fs
Standard output: 4-20mAdc
Load resistance 400Ω
Configurable:
- Measured parameters
- Input range, uni-polar / bipolar
4. Pulse Output (PO) : 2 pulse outputs photo-isolated by option choose
Configurable:
- Parameter: WH / VarH
- Unit: ±1WH / ±1QH
Pulse width: 80 ms, 50% duty cycle
3.1.5 Communication Port
1. Rear panel port : RS-485 Network 2 wires for networking to master
Baudrate: 4800, 9600, 19200, 38400bps
2. Communication Protocol : ModBus RTU Protocol
Address: 1~247
3.1.6 Alarms trip set-point
1. Set points : 44 set point,
Over current, under current, over voltage, under
voltage, over load, phase lost, over frequency,
under frequency, status change
Circuital set-value
Time delay

VP-2040 Enhanced IED Chapter 3 - Specifications
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
Page 20 of 100
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3.1.7 Data Logger Feature
1. Event Logger : 50 events with time-stamped in NVRAM
Status change of switch input
Activation of set-points
Alarms Operation of controlled relay output
2. Control Output : 2 assignable relay outputs
3. Max / Min Logger : 12 parameters without time-stamped A1, A2, A3,
W, Var, VA, Voltage V1,V2,V3 THD, Current
A1,A2,A3 THD
4. Demand / Max Logger : 4 parameters with time-stamped AE, W, Var, VA
3.1.8 Standards
1. Metering : Class 1 For:
Electricity Metering Part 21 Active Energy
IEC 62053-21
Electricity Metering Part 21 Reactive Energy
IEC 62053-23
2. Dielectric Strength : 2KV ACrms 1 minute
IEC 255-5
Insulation resistance ≥50MΩ
3. Impulse & Surge Test :
(EMC)
Electrostatic discharge immunity test
IEC 61000-4-2,Level 4
Radiated immunity test
IEC 61000-4-3,Level 3
Electrical fast transient/burst immunity test
IEC 61000-4-4,Level 4
Surge immunity test (1, 2/50μs~8/20μs)
IEC 61000-4-5,Level 3
Conducted emissions
EN 55022,Class B
Radiated emissions
EN 55022,Class B