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SEMS-Master

Introduction

SEMS-Master is a display and setting device of the existing SEMS-6G, and can display the data of SEMS-6G, communicate with the upper SCADA system or PLC, etc. through multi-TCP/IP and RS-485 (MODBUS RTU), and save the data to a USB memory. It is also a product that can monitor power data remotely by combining MPM-330A,AC 24 display and communication converter that transmits to the upper level.

Features

  • SEMS-6G monitors loads of up to 24ch for three phases or up to 72ch for single phases
  • Transmitting SEMS-6G data to the upper level (TCP/IP, RS-485)
  • MPM-330 Up to 24 load monitors
  • MPM-330 data transmission to upper level (TCP/IP, RS-485) converter function
  • Save data as CSV file to USB memory (save interval 1, 3, 5, 10 minutes)
  • Provides various communication methods RS-232, RS485, TCP/IP

Basic specifications

  • power supply : 110V ~ 220VAC
  • power consumption : 5VA
  • Temperature and humidity in use : -20~60 degrees 5~90% (no condensation)
  • External dimensions : 117(W)mm x 117(H)mm x 108(H)mm

Communication specifications

  • Top communication : TCP/IP, RS-485
    Protocol : MODBUS RTU
  • Sub-communication : RS-232C, RS-485
    Protocol : MODBUS RTU
    connected algebra : SEMS-6G(3상 24ch, 단상72ch)MPM-330(24대)

SEMS6G

Introduction

SEMS series was designed to be suitable for small or large-sized power management systems such as BEMS (Building Energy Management System) or FEMS (Factory Energy Management System) etc.
SEMS-6G was designed with the concept ‘maximum load in the minimum space’. This enables to monitor at least six 3-phase loads, which means monitoring from one module (load: 6EA) to up to 4 modules, (maximum 24 loads based on 3 phase), and in case of 3 phase, it is available to measure Neutral current and ZCT.

Features

  • Monitor up to 72 loads at single phase
  • Use both single phase and 3 phase
  • Scalability of minimum six 3-phase loads (single phase: 18 loads) ~ 24 loads (single phase: 72 loads) with one module.
  • Excellent precision for remote monitoring and used as measuring instrument.
  • Provides various communication modes - RS485, TCP/IP, SERVICE PORT
  • Displays voltage, current, power, and THD (Total Harmonic Distortion)
  • Various functions of internal DO: temperature alarm or Energy pulse output selection
  • Expansion of stable external DI/DO/AI module
  • Internal temperature measurement/Digital Input/Digital Output
  • Measures and calculates Line-to-Line/phase voltage, current, active/reactive/apparent power and accumulated/this month/last month active/reactive/apparent energy and other 30 power elements
  • Voltage phase angle and current phase angle measurement

Measurement items

Items unit Measuring range Precision Remarks
Line voltage V 69 ~ 700Vrms 0.3% F.S Line to Line
Phase voltage V 40 ~ 400Vrms 0.3% F.S Line to Neutal
Current A 0.1 ~ 9999 0.3% F.S
Neutral current A 0.03 ~ 9999 0.5% F.S 3 phase
Frequency Hz 47 ~ 63 0.3% F.S
Power factor % -1.000 ~ 1.000 0.5% F.S Each phase & 3 phase
Active power kW 0.006 ~ 9,999.999 0.5% F.S Each phase & 3 phase
Reactive power KVAR 0.000 ~ 9,999.999 0.5% F.S Each phase & 3 phase
Apparent Power KVA 0.006 ~ 9,999.999 0.5% F.S Each phase & 3 phase
Active energy kWh 0 ~ 99,999,999.9 0.5% F.S Each phase & 3 phase
Reactive energy KVARh 0 ~ 99,999,999.9 0.5% F.S Each phase & 3 phase
Apparent energy KVAh 0 ~ 99,999,999.9 0.5% F.S Each phase & 3 phase
Power THD % 0 ~ 100 1[%]F.S Each phase
Voltage THD % 0 ~ 100 1[%]F.S Each phase
Current THD % 0 ~ 100 1[%]F.S Each phase
Voltage unbalance factor % 0 ~ 100 Each phase and Total
Current unbalance factor % 0 ~ 100 Total
DI BI 0 : OFF, 1 : ON
DO BI 0 : OFF, 1 : ON
Temperature ℃ -20 ~ 110℃ · 1.0℃(-40 ~ 0℃)
· 0.5 ~ 1.5℃(0 ~ 80℃)
· 1.5 ~ 2.3℃(80 ~ 110℃)

Rating

Power 85 ~ 264Vac
Frequency 47 ~ 63Hz
Power consumption Max. 7W
Voltage input Up to 700Vrms (LINE TO LINE)
Current input Pri.30 ~500A/Sec. 100mV
Temperature measurement -20℃ ~ 110℃
Digital Input Dry contact input
Digital Output AC 250V/5A, DC 30V/5A (resistance load) or Pulse output - 500WH per 1 pulse
Operating temperature -10 ~ 50℃
Operating humidity 10 ~ 85% (Non condensing)

Communication specification

Communication mode Description
RS-232 FULL DUPLEX
TXD+,RXD-,GND – 3 wire
9600 BPS Fixed
1.2M
RS-485 HALF DUPLEX
MODBUS RTU Protocol
DATA+,DATA- - 2 wire
4800,9600,19200,38400 BPS selection
TCP/IP MODBUS TCP/IP protocol
10/100M BPS
CROSS CABLE

MPM-38s / 34s

Introduction

MPM-38s is a device that can efficiently monitor individual loads by installing them on small-scale/large switchgear, distribution panels, and MCC panels, and can measure 8 three-phase loads (in single-phase 24) on a single module. In addition, measurement data can be checked in the field directly through LCD, and remote monitoring is possible using communication function

Communication

  • The device uses a embedded RS-485 com.
  • Protocol: Modbus RTU
  • Type: RS-485, Half Duplex, 2-Wire
  • Speed: 4800, 9600, 19200, 38400 bps

Features

Ease of installation in a compact size. Adoption and scalability of industrial communications protocols. Provide various parameters for power monitoring. Precise accuracy(Voltage/Current - 0.3%, Active Power – 0.5%) External temperature / humidity measurement port (option) Easily check data

General Specification

Power supply 110 ~ 220VAC(45 ~ 65Hz)
Input current 100mA
Power consumption 5VA
Isolation method Galvanic Isolation and EMI Filter
Temperature used -20˚C ~ 60˚C (-4˚F ~ 140˚F)
Humidity used 5 ~ 90%(Non-condensing)