Datakom DKM-411 User manual

DKM-411 User Manual Rev_01 Firmware V-1.0
DKM-411
ADVANCED
NETWORK
ANALYSER WITH
INTERNET
COMMUNICATIONS
The DKM-411 is an advanced precision metering
device offering an 3.5” size, 320x240 pixel color TFT,
together with unrivalled remote monitoring
capabilities over internet in a compact and low cost
package.
The unit itself is a web page and can be opened
through any browser for remote monitoring.
The central monitoring feature allows monitoring of
thousands of meters from one central PC.
The unit complies and mostly exceeds world’s
tightest safety, EMC and environmental standards
for the industrial category.
Software features are complete with easy firmware
upgrade process through USB port.
The Windows based PC software allows monitoring
and programming through USB, RS-485, Ethernet
and GPRS.
The PC based Rainbow Scada software allows
monitoring and control of an unlimited number of
devices from a single central location.
Ethernet 10/100Mb
RS-485 isolated (Modbus RTU)
RS-232 for external GPRS modem
USB Host for data recording on flash memory
USB Device for PC connection
True RMS measurements
3.5” TFT LCD, 320x240 pixels
Internal battery backed-up real time clock
Harmonic distortion display (63 harmonics)
Oscilloscope, waveform display
Phasor diagram display
Max demand display
User configurable display screens
2 configurable relay outputs
Free internet based monitoring program
2 opto-isolated, configurable digital inputs
Dual active-reactive power counters
Both mains & generator energy metering
Configurable user counters
Voltage transformer ratio for MV applications
Password protected front panel programming
Reduced panel depth
Sealed front panel (IP54)
3 phases 4 wires, star
3 phases 3 wires, 3 CTs
3 phases 3 wires, 2 CTs (L1-L2)
3 phases 3 wires, 2 CTs (L1-L3)
3 phases 4 wires, delta
2 phases 3 wires, L1-L2
1 phase 2 wires
COMMUNICATION PORTS
FEATURES
TOPOLOGIES
DESCRIPTION

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Any unauthorized use or copying of the contents or any part of this document is prohibited.
This applies in particular to trademarks, model denominations, part numbers and drawings.
This document describes minimum requirements and necessary steps for the successful installation of
the DKM-411 family units.
Follow carefully advices given in the document. These are often good practices for the installation of
genset control units which reduce future issues.
For all technical queries please contact Datakom at below e-mail address:
[email protected]r
If additional information to this manual is required, please contact the manufacturer directly at below e-
mail address: [email protected]r
Please provide following information in order to get answers to any question:
- Device model name (see the back panel of the unit),
- Complete serial number (see the back panel of the unit),
- Firmware version (read from the display screen),
- Measuring-circuit voltage and power supply voltage,
- Precise description of the querry.
REV.
DATE
AUTHOR
DESCRIPTION
01
04-12-2012
MH
First issue
QUERRIES
REVISION HISTORY
ABOUT THIS DOCUMENT
COPYRIGHT NOTICE

DKM-411 User Manual Rev_01 Firmware V-1.0
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FILENAME
DESCRIPTION
Rainbow Installation
Rainbow Plus Installation Guide
Rainbow Usage
Rainbow Plus Usage Guide
DYNdns account setting
Dynamic DNS Account Setting
Ethernet Configuration
Ethernet Configuration Guide
GSM Configuration
GSM Configuration Guide
Firmware Update
Firmware Update Guide
411-MODBUS
Modbus Application Manual for DKM-411
411-snmp_E_34076_DKM411
MIB file for SNMP Application of DKM-411
Rainbow Scada Installation
Rainbow Scada Installation Guide
Rainbow Scada Usage
Rainbow Scada Usage Guide
CAUTION: Potential risk of injury or death.
WARNING: Potential risk of malfunction or material damage.
ATTENTION: Useful hints for the understanding of device operation.
RELATED DOCUMENTS
TERMINOLOGY

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The DKM-411 family units are available in various options and peripheral features. Please use below
information for ordering the correct version:
DKM-411
-G
-T
-00
Screw type bracket
Stock Code=J10P01 (per unit)
Self Retaining type bracket
Stock Code=K16P01 (per unit)
Sealing Gasket, Stock Code= K46P01
SPARE PARTS
ORDERING CODES
Family Code
With Sealing
gasket
With Conformal
Coating
Variant
00: standard unit
01...99: customer
specific products

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Electrical equipment should be installed only by qualified
specialist. No responsibility is assured by the manufacturer or
any of its subsidiaries for any consequences resulting from the
non-compliance to these instructions.
Check the unit for cracks and damages due to transportation. Do
not install damaged equipment.
Do not open the unit. There are no serviceable parts inside.
Fuses must be connected to the power supply and phase voltage
inputs, in close proximity of the unit.
Fuses must be of fast type (FF) with a maximum rating of 6A.
Disconnect all power before working on equipment.
When the unit is connected to the network do not touch
terminals.
Short circuit terminals of unused current transformers.
Any electrical parameter applied to the device must be in the
range specified in the user manual. Although the unit is designed
with a wide safety margin, over-range parameters may reduce
lifetime, alter operational precision or even damage the unit.
Do not try to clean the device with solvent or the like. Only clean
with a dump cloth.
Verify correct terminal connections before applying power.
Only for front panel mounting.
SAFETY NOTICE
Failure to follow below instructions
will result in death or serious injury
Current Transformers must be used for current measurement.
No direct connection allowed.

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1.INSTALLATION INSTRUCTIONS
2.MOUNTING
2.1. DIMENSIONS
2.2. SEALING, GASKET
2.3. ELECTRICAL INSTALLATION
3. TERMINAL DESCRIPTIONS
3.1. AUXILIARY SUPPLY INPUT
3.2. AC VOLTAGE INPUTS
3.3. AC CURRENT INPUTS
3.4. DIGITAL INPUTS
3.5. DIGITAL OUTPUTS
3.6. RS-485 PORT
3.7. ETHERNET PORT
3.8. USB DEVICE PORT
3.9. USB HOST PORT
3.10. MODEM PORT
3.11. EXTERNAL GSM MODEM (DKG-090)
4. TOPOLOGIES
4.1. SELECTING THE TOPOLOGY
4.2. 3 PHASE, 4 WIRE, STAR
4.3. 3 PHASE, 3 WIRE, DELTA
4.4. 3 PHASE, 4 WIRE, DELTA
4.5. 3 PHASE, 3 WIRE, DELTA, 2 CT (L1-L2)
4.6. 3 PHASE, 3 WIRE, DELTA, 2 CT (L1-L3)
4.7. 2 PHASE, 3 WIRE, DELTA, 2 CTs (L1-L2)
4.7. 1 PHASE, 2 WIRE
5. CONNECTION DIAGRAM
6. TERMINAL DESCRIPTION
7. TECHNICAL SPECIFICATIONS
8. DESCRIPTION OF CONTROLS
8.1. FRONT PANEL FUNCTIONALITY
8.2. PUSHBUTTON FUNCTIONS
8.3. DISPLAY SCREEN ORGANIZATION
8.4. MEASURED PARAMETERS
9. WAVEFORM DISPLAY & HARMONIC ANALYSIS
10. PHASOR DIAGRAM
11. ANALOG DISPLAYS
12. COMPARING MEASUREMENTS
13. USER CONFIGURABLE DISPLAY SCREENS
14. POWER COUNTERS & INCREMENTAL COUNTERS
15. DEMAND VALUES
16. MIN-MAX VALUES
17. DISPLAYING EVENT LOGS
18. PROTECTIONS AND ALARMS
TABLE OF CONTENTS

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19. PROGRAMMING
19.1. ENTERING THE PROGRAMMING MODE
19.2. NAVIGATING BETWEEN MENUS
19.3. MODIFYING PARAMETER VALUE
19.4. PROGRAMMING MODE EXIT
19.5. RESETTING TO FACTORY SET PARAMETERS
20. PROGRAM PARAMETER LIST
20.1. CONTROLLER CONFIGURATION GROUP
20.2. ELECTRICAL PARAMETERS GROUP
20.3. COUNTERS MIN/MAX PARAMETERS GROUP
20.4. DIGITAL INPUT CONFIGURATION
20.5. OUTPUT CONFIGURATION
20.6. USER INPUT STRINGS
20.7. CONFIGURING USER DISPLAY SCREENS
20.8. SITE-ID STRING
20.9. DEVICE SERIAL NUMBER
20.10. SMS1-2-3-4 TELEPHONE NUMBERS
20.11. ADJUST DATE AND TIME
20.12. GSM MODEM PARAMETERS
20.13. ETHERNET PARAMETERS
21. ETHERNET CONFIGURATION
22. GSM CONFIGURATION
23. DYNAMIC DNS FEATURE
24. ACCESSING THE EMBEDDED WEB SERVER
25. WEB MONITORING
26. CENTRAL MONITORING
27. E-MAIL SENDING
28. ETHERNET/GPRS –MODBUS GATEWAY OPERATION
29. SMS COMMANDS
30. DATA RECORDING
30.1. DATA RECORDING MEDIA
30.2. DIRECTORY STRUCTURE
30.3. UNDERSTANDING THE CSV FORMAT
30.4. RECORDED DATA LIST, RECORD PERIOD
31. MODBUS COMMUNICATIONS
31.1. PARAMETERS REQUIRED FOR RS-485 MODBUS OPERATION
31.2. PARAMETERS REQUIRED FOR MODBUS-TCP/IP VIA ETHERNET
31.3. DATA FORMATS
32. SNMP COMMUNICATIONS
32.1. PARAMETERS REQUIRED FOR SNMP VIA ETHERNET
33. CALIBRATION
34. DECLARATION OF CONFORMITY
35. MAINTENANCE
36. DISPOSAL OF THE UNIT
37. ROHS COMPLIANCE
38. TROUBLESHOOTING GUIDE

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Before installation:
Read the user manual carefully, determine the correct connection diagram.
Remove all connectors and mounting brackets from the unit, then pass the unit through the
mounting opening.
Put mounting brackets and tighten. Do not tighten too much, this can brake the enclosure.
Make electrical connections with plugs removed from sockets, then place plugs to their sockets.
Be sure that adequate cooling is provided.
Be sure that the temperature of the environment will not exceed the maximum operating
temperature in any case.
Below conditions may damage the device:
Incorrect connections.
Incorrect power supply voltage.
Voltage at measuring terminals beyond specified range.
Voltage applied to digital inputs over specified range.
Current at measuring terminals beyond specified range.
Overload or short circuit at relay outputs
Connecting or removing data terminals when the unit is powered-up.
High voltage applied to communication ports.
Ground potential differences at non-isolated communication ports. (USB, RS-232)
Excessive vibration, direct installation on vibrating parts.
Below conditions may cause abnormal operation:
Power supply voltage below minimum acceptable level.
Power supply frequency out of specified limits
Phase order of voltage inputs not correct.
Current transformers not matching related phases.
Current transformer polarity incorrect.
Current Transformers must be used for current
measurement.
No direct connection allowed.
1. INSTALLATION INSTRUCTIONS

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Dimensions: 102x102x49mm (4.0”x4.0”x2.0”)
Panel Cutout: 92x92mm minimum (3.62”x3.62”)
Weight: 480g (1.1 lb)
2.1. DIMENSIONS
2. MOUNTING

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Mount the unit on a flat, vertical surface. Before mounting, remove the mounting brackets and connectors
from the unit, then pass the unit through the mounting opening.
Place and tighten mounting brackets.
Panel Cutout
Required Panel Depth
The unit is designed for panel mounting.
The user should not be able to access parts of the
unit other than the front panel.

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Two different types of brackets are provided:
Screw type bracket
Self retaining type bracket
Installation of screw type bracket
Installation of self retaining type bracket
Do not tighten too much, this may break the unit.

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The rubber gasket provides a watertight means of mounting the module to the genset panel. Together
with the gasket, IEC 60529-IP65 protection can be reached from the front panel. A short definition of IP
protection levels is given below.
1st Digit Description of Protection Level
0 Not protected
1 Protected against solid foreign objects of 50 mm diameter and greater
2 Protected against solid foreign objects of 12,5 mm diameter and greater
3 Protected against solid foreign objects of 2,5 mm diameter and greater
4 Protected against solid foreign objects of 1,0 mm diameter and greater
5 Protected from the amount of dust that would interfere with normal operation
6 Dust tight
2nd Digit Description of Protection Level
0 Not protected
1 Protected against vertically falling water drops
2 Protected against vertically falling water drops when enclosure is tilted up to 15 °
3 Protected against water sprayed at an angle up to 60 ° on either side of the vertical
4 Protected against water splashed against the component from any direction
5 Protected against water projected in jets from any direction
6 Protected against water projected in powerful jets from any direction
7 Protected against temporary immersion in water
8 Protected against continuous immersion in water, or as specified by the user
2.2. SEALING, GASKET
Module
Gasket
Panel

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Although the unit is protected against electromagnetic disturbance, excessive
disturbance can affect the operation, measurement precision and data communication
quality.
ALWAYS remove plug connectors when inserting wires with a screwdriver.
Fuses must be connected to the power supply and phase voltage inputs, in
close proximity of the unit.
Fuses must be of fast type (FF) with a maximum rating of 6A.
Use cables of appropriate temperature range.
Use adequate cable section, at least 0.75mm2 (AWG18).
Follow national rules for electrical installation.
Current transformers must have 5A output.
For current transformer inputs, use at least 1.5mm2section (AWG15) cable.
The current transformer cable length should not exceed 1.5 meters. If
longer cable is used, increase the cable section proportionally.
For the correct recording of events, adjust the real
time clock of the unit through programming menu.
Current Transformers must be used for current
measurement.
No direct connection allowed.
Do not install the unit close to high electromagnetic
noise emitting devices like contactors, high current
busbars, switchmode power supplies and the like.
2.3. ELECTRICAL INSTALLATION

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Supply voltage:
90 to 300V AC
DC supply version: 19-150V DC
Maximum operating
current:
20mA (All options included, digital outputs open.)
Maximum operating power:
< 5VA (All options included, digital outputs open.)
Isolation
3500VAC/1minute from all other terminals.
The connection cables for the power supply voltage
must be fused with a UL listed fuse (6A type C).
3.1. AUXILIARY SUPPLY INPUT
3. TERMINAL DESCRIPTIONS
Power Supply
Connector

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Measurement method:
True RMS
Sampling rate:
8000 Hz
Harmonic analysis:
up to 63th harmonic
Input voltage range:
0 to 300 VAC
Supported topologies:
3 ph 4 wires star
3 ph 3 wires delta
3ph 4 wires delta
2ph 3 wires L1-L2
2ph 3 wires L1-L3
1 ph 2 wires
Measurement range:
0 to 330VAC ph-N (0 to 570VAC ph-ph)
Common mode offset:
max 1000VAC between neutral and any aux. supply terminal
Input impedance:
1M-ohms
Display resolution:
0.1VDC
Accuracy:
0.2% + 1 digit @ 230VAC ph-N (±0.6VAC ph-N)
0.2% + 1 digit @ 400VAC ph-ph (±0.9VAC ph-ph)
Frequency range:
DC to 500Hz
Frequency display
resolution:
0.01 Hz
Frequency accuracy:
0.1% + 1 digit (±0.06 Hz @ 50Hz)
3.2. AC VOLTAGE INPUTS
AC Voltage
Measurement
Input Connector

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Measurement method:
True RMS
Sampling rate:
8000 Hz
Harmonic analysis:
up to 63th harmonic
Supported topologies:
3 ph 3 CTs
3 ph 2 CTs L1-L2
3 ph 2 CTs L1-L3
2 ph 2 CTs L1-L2
2 ph 2 CTs L1-L3
1 ph 1 CT
CT secondary rating:
5A
Measurement range:
5/5 to 10000/5A minimum
Input impedance:
15 mili-ohms
Burden:
0.375W
Maximum continuous
current:
6A
Measurement range:
0.1 to 7.5A
Common mode offset:
Max 50VAC between NEUTRAL and any CT terminal.
Display resolution:
0.1A
Accuracy:
0.2% + 1 digit @ 5A (± 1.1A @ 5/500A full range)
3.3. AC CURRENT INPUTS
AC Current
Measurement
Input Connector

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SELECTING THE CT RATING AND CABLE SECTION:
The load on a CT should be kept
minimum in order to minimize phase shift
effect of the current transformer. Phase
shift in a CT will cause erroneous power
and power factor readings, although amp
readings are correct.
Datakom advises CT rating to be selected
following this table for the best
measurement accuracy.
SELECTING THE CT ACCURACY CLASS:
The CT accuracy class should be selected in accordance with the required measurement precision. The
accuracy class of the Datakom controller is 0.5%. Thus 0.5% class CTs are advised for the best result.
CONNECTING CTs:
Be sure of connecting each CT to the related phase input with the correct polarity. Mixing CTs between
phases will cause faulty power and pf readings.
Many combinations of incorrect CTs connections are possible, so check both order of CTs and their
polarity. Reactive power measurement is affected by incorrect CTs connection in similar way as active
power measurement.

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CORRECT CT CONNECTIONS
Let’s suppose that the genset is loaded with 100 kW on each phase. The load Power Factor (PF) is 1.
Measured values are as follows:
kW
kVAr
kVA
pf
Phase L1
100.0
0.0
100
1.00
Phase L2
100.0
0.0
100
1.00
Phase L3
100.0
0.0
100
1.00
Total
300.0
0.0
300
1.00

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EFFECT OF POLARITY REVERSAL
The network is still loaded with 100 kW On each phase. The load Power Factor (PF) is 1.
PF in phase L2 will show -1,00 due to reverse CT polarity. The result is that total measured power
displayed by the analyser is 100 kW.
Measured values are as follows:
kW
kVAr
kVA
pf
Phase L1
100.0
0.0
100
1.00
Phase L2
-100.0
0.0
100
-1.00
Phase L3
100.0
0.0
100
1.00
Total
100.0
0.0
300
0.33
EFFECT OF PHASE SWAPPING
The network is still loaded with 100 kW on each phase. The load Power Factor (PF) is 1.
PF in phases L2 and L3 will show -0,50 due to phase shift between voltages and currents which is
caused by CT swapping. The result is that total measured power displayed by controller is 0 kW.
Measured values are as follows:
kW
kVAr
kVA
pf
Phase L1
100.0
0.0
100
1.00
Phase L2
-50.0
86.6
100
-0.50
Phase L3
-50.0
-86.6
100
-0.50
Total
0.0
0.0
300
0.0

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Function selection:
from list
Number of inputs:
2 inputs, all configurable
Contact type:
Normally open or normally closed (programmable)
Structure:
Opto-isolated with 10 k-ohms serial resistor.
Isolation voltage:
1000VAC, 1 minute
Measurement:
Digital
Low level threshold:
1.6VDC
High level threshold:
9.0VDC
Maximum input voltage:
±30VDC with respect to input common terminal
Noise filtering:
yes
3.4. DIGITAL INPUTS
Digital Input
Connector
MAX 30V DC or 30V AC
-+