Qonnex DCE.230 User manual

DCE.230 DC Energy Meter
DCE.230 User Manual 1.7
1. Introducon
DCE.230 series DC energy meters are
designed for measuring and monitoring
in DC systems. The din rail DC energy
meters can measure of important DC
parameters: Voltage, current, power
and energy etc. It also support bi-
direconal measurement with pulse
output. All data in the meter are
accessible via RS485 using Modbus RTU.
The meter has DC power supply. Input
voltage range up to 1000V DC, and
current inputs are exible with DC shunt
and current sensors.
•Measures kWh, W, V, A etc.
•Bi-direconal measurement
IMP & EXP
•Pulse output
•RS485 Modbus
•Din rail mounng 35mm
•DC shunt connecon
•Class 1
1.1 General Specicaons
Voltage DC Input: 5~1000V DC
Auxiliary Supply: 9-40V DC
DC Shunt Input: 75mV
Current Range: 0~2000A
Power consumpon: ≤ 2W / 5VA
AC voltage withstand: 4400V/ 1min
Impulse voltage withstand: 6.4kV -
1.2/50μS waveform
1.2 Unit Characteriscs
The Unit can measure and display:
•voltage
•Currents
•Power
•Acve energy imported and
exported
Pulse output indicates real-me energy
measurement. An RS485 output allows
remote monitoring from another
display or a computer.
1.3 Shunt Primary Current
The unit can be congured to operate
with primary current and secondary
input.
Primary current range: 0~2000A.
Second input: 75mV
1.4 RS485 Output for Modbus RTU
For Modbus RTU, the following RS485
communicaon parameters can be
congured from the Set-up menu:
Baud rate 1200,2400, 4800, 9600,19200
Parity none (default)/odd/even
Stop bits 1 or 2
RS485 address 3-digit, 001 to 247
Modbus™ Word order Hi/Lo byte order
is set automacally to normal or
reverse. It cannot be congured
from the set-up menu.
Set-up screens are provided for seng
up the RS485 port.
1.5 Pulse output
The unit provides a pulse output. The
constant can be congured to below:
Pulse output: 1, 10, 100, 1000 imp/kWh
(default)
Pulse duraon: 60, 100 (default), 200mS
Pulse output indicate: Total kWh/
import kWh/ export kWh
Display: LCD with backlit
Max. Reading: 999999.9kWh
Weight: 220g
Standard: GB/T 33708-2017
10000 imp/kWh
1000 imp/kwh
100 imp/kWh
10 imp/kWh
1 imp/kWh
Pulse width: 200/100(default)/60 ms.
Note: the relaonship between pulse
constant and CT1
CT1
Default pulse
imp/kWh
Seable pulse
imp/kWh
1–20
1000
1000,100,10,1
21–200
100
100,10,1
201–2000
10
10,1
*when the CT seng on meter is 2000A,
the default pulse constant is 10
imp/kWh and it can be set to
10imp/kWh or 1 imp/kWh.
*Over-current alarm: Alarm will
happened when the current is over the
CT1 value set on the meter. The Alarm
LED will stay solid and the corres-
ponding register value will be changed.
The user can read this register through
communicaon to determine whether
an overcurrent alarm has occurred.
The pulse outputs can be set to generate
pulses to represent Import kWh/ Export
kWh/ total kWh.
The pulse output is passive type,
complies with IEC62053-31 Class A.
1.7 Environment
Operang temperature -25 to + 55℃
Reference temperature 23℃±2℃
Relave humidity 0 to 90%, non-
condensing
Altude up to 2000m
Installaon category CATIII
Mechanical Environment M1
Electromagnec environment E2
Degree of polluon 2
1.8 Mechanics
Din rail dimensions 36x100x63 (WxHxD)
DIN 43880
Mounng DIN rail 35mm
Ingress Protecon IP51 (indoor)
Material Self-exnguishing UL94V-0
2. Operaon
2.1 Inializaon Display
When it is powered on, the meter will
inialize and do self-checking.
Full Screen (stay
2s)
Soware Version
(stay 2s)
(This informaon
is for reference
only.)
Current Modbus
address
(stay 2s)
Current baud
rate (stay 2s)
Total acve
energy(kWh)
Total=Import+
Export
Max read:
999999.9 kWh
2.1 Buons funcon
There are two buons on the front
panel.
>Scroll the display for
data checking.
>Changing opon at
Set-up mode
>Exit the Set-up mode
>Set-up mode entry
>Conrmaon
2.1.1 Scroll display
Aer inializaon and self-checking
program, the meter displays the
measured values. The default page is
total kWh. If the user wants to check
other informaon, please press the
scroll buon on the front panel.
Total acve
energy(kWh)
Total=Import+
Export
Display format:
5+2 -> 6+1 -> 5+2
99999.99 ->
100000.0 ->
999999.9 ->
00000.00
Paral reseable
acve
energy
Display format:
5+2 -> 6+1 -> 5+2
99999.99 ->
100000.0 ->
999999.9 ->
00000.00
Voltage
Current
Power
Display format:
<1000 W: XXX W
<1000kW: XXX.XXX
kW
For other value:
XXXX.XX kW
Pulse constant
CT1 Primary
current
Meter address
Baud rate
Parity
Soware Version
Set-up Mode
To get into Set-up Mode, the user need
press the “Enter” buon for 3 second.
1 Password
To get into Set-up mode,
it asks a password
conrm. Default
password: 1000
Use Scroll and Set to
enter correct password.
2 Keep pressing Set for 3
second, the current
selecon
will ash, use Scroll and
Set to change the
Modbus address.
Opons: 1~247
Keep press Set for 3s to
conrm the selecon.
3 Keep pressing Set for 3
second, the current
selecon will ash, use
Scroll and Set to change
the Baud rate. Opons:
1.2k, 2.4k,4.8k,9.6k (
default ),19.2k
Keep press Set for 3s to
conrm the selecon.

4 Keep pressing Set for 3
second, the current
selecon will ash, use
Scroll and Set to change
the Parity.
Opons: EVEN, ODD,
NONE ( default )
5 Keep pressing Set for 3
second, the current
selecon
will ash, use Scroll and
Set to change the type
of Pulse Output.
Opons: total kWh, IMP
kWh, EXP kWh
6 Keep pressing Set for 3
second, the current
selecon will ash, use
Scroll and Set to change
the pulse constant.
Opons: 1000, 100, 10, 1
imp/kWh
*Default pulse constant
is related to the CT1
seng
7 Keep pressing Set for 3
second, the current
selecon will ash, use
Scroll and Set to change
the pulse width. Opons:
60, 100, 200, unit: ms
8 Use Scroll to select the
CT1 opon. Keep
pressing for Set 3
second, the current
selecon will ash, use
Scroll and Set to enter
the Primary current. The
range is from 0001 to
2000. For example, if
using a 100A/75mV
current transformer, the
CT1 shall be 0100.
Keep press Set for 3s to
conrm the selecon.
Default : 1A
9 Keep pressing Set for 3
second, the current
selecon will ash, use
Scroll and Set to change
the DIT(Demand
Integraon Time).
Opons: 0,5,8, 10,15,
20,30,60( default)
10 Use Scroll to select
the scroll display me
opon. Keep pressing Set
for 3 second, the current
selecon will ash, use
Scroll and Set to enter
the
opons: 0~60s.
Default: 0 s, represent do
not scroll display
11 Use Scroll to select
the backlit me opon.
Keep pressing Set for 3
second, the current
selecon will ash, use
Scroll and Set to enter
the opons:0,5,10,
20,30,60 minutes. 0
means the light is always
on. Default: 60 min.
12 Use Scroll to select
the Password opon.
Keep pressing Set for 3
second, the current
selecon will ash, use
Scroll and Set to enter
the new password. The
range is from 0001 to
9999.
Default: 1000
13 Shunt wiring
Use Scroll to select the
shunt connecon opon.
Keep
pressing Set for 3
second, the current
selecon will ash, use
Scroll to choose the
connecon way.
Opon: N, P
N: Negave type
(default)
P: Posive type
Keep pressing buon to
exit the set-up mold.
Keep pressing SCROLL buon to exit
the set-up mold.
3. Wiring diagram
3.1 Terminal Connecon
DC Power Supply:
3.2 Shunt Connecon
4. Shunt
Below a lisng of common shunt resistors
5. Dimensions
Qonnex bv
B-9310 Aalst
Belgium
Email: inf[email protected]
www.2-wire.be