Datakom DKM-430 User Manual

DKM-430 User Manual Rev_02
DESCRIPTION
DATAKOM DKM-430 is a precision instrument
allowing the measurement, recording and remote
monitoring of 10 3-phased or 30 single-phased feeders
(or any combination of these two). The number and
flexibility of current inputs allow the unit to be used in a
variety of applications like power distribution network
monitoring, ISO50001 energy efficiency or home and
factory automation.
The unit can be mounted on a DIN rail or backplane. It
can be easily adapted to existing panels.
Current inputs of the unit are designed for 0.1A output
current transformers (CTs). Different 0.1A rated CTs
are available at Datakom for sales.
Each CT can be assigned to any phase voltage and
any virtual analyzer. Inputs can be moved between
analyzers without modifying connections.
Independently adjustable current limits for each phase
provide pre-alarms and help to reduce energy failures.
All measurement values and program parameters may
be displayed on the graphic LCD screen.
The unit logs all fault conditions together with date and
time information. The internal real time clock is capable
of running 10 years without energy.
The astronomical relay function calculates sunrise and
sunset times precisely for daylight based applications.
Any fault or warning signal can be connected to digital
inputs of the unit. Input functions are selected from list.
Any function can be assigned to relay outputs of the
unit. Relays may be remotely operated through the
central monitoring program.
The isolated RS-485 MODBUS RTU data port is
unaffected by ground potential differences and allows
safe transmission of information to monitoring and
automation systems.
The optional internal GPRS modem allows remote
monitoring and control of the distribution panel without
the use of any additional module.
Parameter setting of the unit is made either manually or
through the USB port using the free PC program.
The unit records electrical parameters in its 1MB
internal memory with programmed period. Records are
read through Modbus.
DKM-430
MULTIPLE NETWORK
FEATURES
Equivalent to 10 3-phase analyzers
True RMS measurements
0.5% measurement precision
Internal record memory: 1MB
Internal battery backed-up real time clock
Astronomical relay function
Isolated RS-485 serial port
MODBUS-RTU communication
Internal GPRS modem (optional)
2 programmable relay outputs
2 optically isolated programmable inputs
Active-reactive energy counters
USB port for programming
Free programming software
Graphic LCD, 128x64 pixels
Wide supply range:85-305VAC / 88-450VDC
DC supply version available
Wide operating temperature range
MEASUREMENTS
VOLTAGE INPUTS:
▪ P-N and P-P voltages: V1-V2-V3-U12-U23-U31
▪ Harmonics: Voltage inputs, 2-17 harmonics
EACH CT INPUT:
▪ Current: In
▪ Active/reactive/apparent powers: Pn-Qn-Sn
▪ Power factor: COSn
▪ Current harmonics 2-17
EACH VIRTUAL ANALYSER:
▪ Total active/reactive/apparent power: ∑P-∑Q-∑S
▪ Total power factor: ∑cos
▪ Active and reactive counters: Pn-Qn
Firmware V-1.8
ANALYSER