Lightstar KDX-300 User manual

KDX-300
Clear Large
LCD display
kwh
RS-485
Communication
MAX
Max. value
automatically saved
SIZE
INSTRUCTION MANUAL
(FULL VERSION)
Consumed Energy
Generated Energy
Compact size
(96x96mm)

Contents Page.1
6. Communication
Page.22
Page.22
Page.22
Page.23
6.4 Data Map
6.1 MODBUS Communication specification
6.3 Function Code
6.2 Modbus RTU Protocol
4.2 Default value
4.3 Conversion table for decimal point and unit
4. Setting method
Page.6
Page.7
Page.7
4.1 Setting
5.2 Display mode
5. Mode description
Page.10
Page.11
Page.15
Page.17
Page.19
5.5 Display Overview
5.3 Setting mode
5.4 Harmonic mode
5.1 Display item per page
3. Configuration
Page.5
Page.5
Page.5
Page.5
3.2 Key
3.1 LED
3.3 LCD
3.4 Terminals
2. Connection method
Page.42.1 Power, PT, CT connection
1.2 Dimensions
1. General Introduction
1.1 General
1.3 Specification
Page.2
Page.2
Page.3
Page.3
1.4 Function and accuracy

Safety warning
1.2 Dimensions
(1) During installation
Please be advised to avoid following severe conditions or equip with appropriate protection device in order to prevent
malfunctions.
Exposed to high electromagnetic field.
Located near circuit breaker, inverter, motor controller or frequently turned on/off power sources.
High temperature area, direct sunlight, chemical contaminated area, excessive vibration or excessive humidity.
(2) During cabling
Earthing point shall be located near this device as close as possible.
Please be advised to segregate power cable and control cable.
Otherwise, surge protection device shall be used at appropriate location.
Prior to cabling, be sure to check the designed aux power and connection diagram.
1.1 General
Chapter_1. General Introduction Page.2
Function
Features
Safety warnings must be read and understood before the instrument is used.
KDX-300 can measure/display electric data of the system and transmit data via RS-485 communication.
This can measure voltage, current, power, energy, power factor, frequency, phase angle, harmonics.
● Remote monitoring can be supported by RS-485 communication.
● Easily recognized display with various electric data as per pages
● Harmonics and phase angle can be displayed.
● Compact size with DIN 96 x 96
Unit : mm
91.5±0
1
91.5±0
1
50
6
18-M3.5 BOLT
90.5
90.5
99
100
100

Chapter_1. General Introduction Page.3
1.3 Specification
1.4 Function and accuracy
Line to line 40 ~ 700V
0.05 ~ 6A
±0.200~1.000
45 ~ 65Hz
Panel mounted
AC90V ~ 260V(50/60Hz), DC 110V
0~55℃
20~80%
Burst, Level 4 (IEC 61000-4-4)
Voltage(1.2㎲/50㎲, 5kV), Current(8㎲/20㎲)(IEC 60255-5)
±8kV(Air), ±4kV(Contact)(IEC 61000-4-2)
CE: 0.15~0.5MHz:79(66)dBuV, 0.5~30MHz:73(60)dBuV(KN22)
RE: 30~230MHz:40dBuV/m, 230~1000MHz:47dBuV/m(KN22)
10V/m(IEC 61000-4-3)
1P2W, 1P3W, 3P3W, 3P4W
RS-485 multi-drop 2wire (MODBUS RTU)
Function
Phase voltage
Line to line voltage
Current
Current load rate
Total power
Power per phase
Total reactive power
Reactive power per phase
Total apparent power
Apparent power per phase
Energy
Reverse Energy
Reactive energy
Reverse reactive energy
Frequency
Phase angle
Line to line angle
Current angle
Total power factor
Power factor per phase
Voltage THD
Current THD
Voltage Harmonic
Current Harmonic
Voltage
Line to line voltage
Current
Total power
Category
Voltage
Current
Power
Energy
Angle
Frequency
Power factor
T H D
Harmonic
Max value
Detail
V1,V2,V3
V12,V23,V31
I1,I2,I3
I1,I2,I3
W
W1,W2,W3
Var
Var1,Var2,Var3
VA
VA1,VA2,VA3
Wh_p
Wh_n
Varh_p
Varh_n
Frequency(Hz)
∠V12,∠V23,∠V31
∠V1,∠V2,∠V3
∠I1,∠I2,∠I3
PF
PF1,PF2,PF3
V1,V2,V3 THD
I1,I2,I3 THD
V1,V2,V3 Harmonic to 32nd order
I1,I2,I3 Harmonic to 32nd order
max V1, max V2, max V3
max V12, max V21, max V31
max I1, max I2, max I3
max W
Accuracy
±(0.2% of rdg + 0.02% of FS)
±(0.2% of rdg + 0.02% of FS)
Class 0.5 as per IEC 62053-22
Class 1.0 as per IEC 62053-24
Class 0.5 as per IEC 62053-22
Class 0.5 as per IEC 62053-22
Class 1.0 as per IEC 62053-24
±0.02Hz
±(0.5% of rdg +0.5°)
±(0.5% of rdg +0.5°)
-
-
-
-
-
-
-
-
Burst immunity test
Surge impulse test
Electrostatic discharge immunity test
Radiated radio-frequency immunity test
Connection method
Communication
Type
Operating power
Operating temperature
Operating humidity
Less than ‘2,000m above sea level’ without vibrations or shocks
Operating condition
Current
Power Factor
Frequency
Voltage
Radio disturbance test

Chapter_2. Connection method Page.4
2.1 Power, PT, CT connection
(without PT) (without PT)

Chapter_3. Configuration Page.5
LED
KEY
LCD
3.2 Key
(1) Key usage
3.1 LED
Setting mode
Key
KEY
LCD
1S
1L
2S
2L
3S
3L
A
B
G
S1
S2
G
P1
P2
P3
P0
KDX-300
PT Input AC 40 ~ 500 V
CT Input 0.1 ~6A
Source AC 90~260V, DC 110V
Panel Power Meter
DIsplay mode
page down
page up
Page down
Page up
Harmonic mode
Page down
Page up
Switch to basic mode
3.3 LCD
- Clear large LCD display with white backlight.
3.4 Terminals
Terminals
S1, S2, G
P1, P2, P3, P0
1S, 1L, 2S, 2L, 3S, 3L
A+, B-, SG
Usage
Aux. power / Earthing
Voltage input
Current input
RS-485 communication (to PC)
This device is equipped with 5 LED on the front top, which help to recognize power consumption easily.
Return to first page.
Or switch to setting mode
with holding 2 sec
Set-up ready
Set-up complete
Increase value.
Or rapid increase with holding 2 sec.
Decrease value.
Or rapid decrease with holding 2 sec.
Tap down(19>15>12>8>5>1 page)
Tap up(1>5>8>12>15>19 page) Tap up(1>17 page)
Tap down(17>1 page)

Chapter_4. Setting method Page.6
4.1 Setting
connection method > PT ratio > CT ratio > Communication ID & Adress > Max value reset -Energy reset
> All setting reset > backlight > Firmware information > Frequency
● Button function
- ◎ : enter to setting mode with holding 2 sec or finish setting mode.
- < , > : Choose setting page
- ∧, ∨ : Adjust setting value
● Setting procedure
1) connection method
Choose connection method from 3P3W, 3P4W, 1P2W, 1P3W
2) PT ratio
Input ratio for primary and secondary
Primary value can be set by the sequence as below.
Decimal point and unit > 1000 digit > 10 digit > 1 digit
Decimal point and unit can be chosen among (0.0V / 0V / 0,0kV/ 0kV)
Secondary value can be 190V(3P4W) or 110V(3P3W) (Refer to Page 11 for set up mode)
3) CT Ratio
Default value is 5/5A and setting range will be 5 ~ 6000A (56 kinds)
4) Communication ID & speed
Setting ID and speed(9600/14400/19200bps) for RS-485 communication.
5) Max value / Energy / All Setting reset
Reset max value or energy.
All setting reset includes max value and energy.
6) Back light
Can choose 3 options (Automatically off after 60 seconds on / ON / OFF)
7) Firmware information
This page can not be modified manually.
8)Frequency
Choose frequency according to the condition (50Hz/60Hz)

4.2 Default value
Page.7
Default value
- Decimal point of Power, Energy
+ If positive Energy exceed 9 digit, it will be reset as '0'
- If negative energy exceed 8 digit, it will be reset as '0'
4.3 Conversion table for decimal point and unit
- Decimal point and unit for Voltage
- Decimal point and unit for Current
5
10~50
60~500
600~6000
5.000A (3rd decimal point)
50.00A (2nd decimal point)
500.0A (1st decimal point)
6000A (Without decimal point)
Primary Current How to display
Primary voltage 110V
110.0V
11.0kV
11.00kV
190V
190.0V
11.4kV
11.40kV
11.40kV
380V
380.0V
380.0V
22.0kV
22.00kV
440V
440.0V
22.9kV
22.90kV
3.30kV
3.300kV
66.0kV
66.00kV
6.60kV
6.600kV
154kV
154.0kV
7.2kV
7.200kV
22.90kV
- Decimal point and unit for frequency, power factor, phase, harmonics
Phase angle
60.00 (2nd decimal point)
100.0 (1st decimal point)
120.0 (1st decimal point)
Hz
%
%
Decimal point Unit
3Φ3W voltage
3Φ4W voltage
Primary voltage
3Φ3W voltage
3Φ4W voltage
※ Secondary current 5A
100.0 (1st decimal point, excluding 1st order)
∠
Chapter_4. Setting method
Connection method : 3P4W
PT ratio : 190:190 (Direct)
CT ratio : 5:5
Backlight : Automatically off after 60 seconds on
RS-485 communistion : 255 (ID), 9600bps
Frequency : 60Hz
Frequency
Power factor
Harmonic

Page.8
Chapter_4. Setting method
5
10
15
20
25
30
40
50
60
70
75
80
90
100
120
125
130
140
150
160
170
175
180
200
225
240
250
300
350
400
450
500
600
700
750
800
900
1000
1200
1250
1300
1400
1500
1600
1700
1750
1800
2000
2500
3000
3200
3500
3600
4000
5000
6000
CT/PT Ratio 380 440 3.30k 6.60k 7.20k 11.0k 11.4k 22.0k 22.9k 66.0k 154k
.000kW .00kW
.0kW
.00kW
.0kW
kW
kW
kW
.00MW
.00MW
.00MW
MW
.0MW
kW
.00MW
3Φ3W

Page.9
Chapter_4. Setting method
CT/PT Ratio
5
10
15
20
25
30
40
50
60
70
75
80
90
100
120
125
130
140
150
160
170
175
180
200
225
240
250
300
350
400
450
500
600
700
750
800
900
1000
1200
1250
1300
1400
1500
1600
1700
1750
1800
2000
2500
3000
3200
3500
3600
4000
5000
6000
3Φ4W
190 380 11.4k 22.9k
- Decimal point and Unit
.000kW -> 3rd decimal point, Unit: kW
.00kW -> 2nd decimal point, Unit: kW
.0kW -> 1st decimal point, Unit: kW
kW -> Without decimal point, Unit: kW
.00MW -> 2nd decimal point, Unit: MW
.0MW -> 1st decimal point, Unit: MW
MW -> Without decimal point, Unit: MW
.000kW
kW
.00kW
.0kW
.0kW
kW
.00MW
.0MW