25
26
6.6 Grounding the inverter
The inverter must be connected to the AC grounding conductor of the power distribution
grid via the ground terminal (PE) .
WARNING
Because of the transformerless design, the DC positive pole and DC
negative pole of PV arrays are not permitted to be grounded.
6.7 Active power control with smart meter , CT or ripple control
signal receiver
Information
The position of export limitation CT or Meter must between the
Inverter & Load and gird.
Multiple inverter combination is not suitable in Australia.
This series inverter has integrated generation limitation control and export limitation
functionality.
The generation control function is used to control the active or apparent power output
levels of an inverter.
The export limit control function for an inverter is used to control the generation from an
inverter to manage the export power level from an electrical installation to the grid.
To use this function, you can connect smart meter or CT. The smart meter model is
Eastron SDM120CT-M(40mA). The CT Model is ESC16-32 (ECHUN)/ CTF16-2K5-
32(Shenke) .The primary aperture is 10mm,output cable length is 5m . The arrow on the
CT must pointing towards the inverter.The detailed information about
the Meter,please refer to Annex -Eastron SDM120CT-M(40mA) user manual.
Fig 6.19
L O A D
L
N
L
N
COM
485A2
485B2
Manufacturer
Eastron
Type
SDM120CT-M(40mA)
General Specifications
Voltage AC (Un)
230V
Voltage Range
176~276V AC
Base Current (Ib)
0.1V AC
Power consumption
<2W/10VA
Frequency
50/ 60Hz(±10%)
AC voltage withstand
4KV for 1 minute
Impulse voltage withstand
6KV-1.2uS waveform
Overcurrent withstand
20Imax for 0.5s
Pulse output 1
1000imp/kWh (default)
Pulse output 2
0.001(default) /0.01/0.1/1 kWh/kVArh
(configurable)
Display
Max. Reading
LCD with white backlit
999999kWh
Environment
Operating temperature
-25
℃
to +55
℃
Storage and transportation temperature -40
℃
to +70
℃
Reference temperature
23
℃ ±
AC
to
Relative humidity
0 to 95%, non-condensing
Altitude
up to 2000m
Warm up time
3s
Installation category
CAT II
Mechanical Environment
M1
Electromagnetic environment
E2
Degree of pollution
2
Mechanics
Din rail dimensions
18x118x64 (WxHxD) DIN 43880
Mounting
DIN rail 35mm
Ingress protection
Ip51 (indoor)
Material
self-extinguishing UL94V-0
