Ac Output (Motor) Connection - SolarEdge 2.2KW User Manual

PV Module Selection:
When selecting proper PV modules, please be sure to consider below parameters:
1. Open circuit Voltage (Voc) of PV modules not exceeds max. DC voltage (800VDC).
2. Accumulated voltage of connected PV panels should be close to 560V for inverter with 380V output voltage.
Take 255Wp PV module as an example. After considering above two parameters, the recommended module
configuration for 7.5KW inverter is listed as below table.
Inverter Model
Rated Output Power (Po)
Maximum Power (Pmax)
Max. Power Voltage Vmpp(V)
Max. Power Current Impp(A)
Open Circuit Voltage Voc(V)
Short Circuit Current Isc(A)

AC Output (Motor) Connection

CAUTION!! There are two terminal blocks with "AC INPUT" and "AC OUTPUT" markings. Be sure to connect
motor with "AC OUTPUT" terminals. Please do NOT mis-connect input and output connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC output
connection. To reduce risk of injury, please use the proper recommended terminal and cable size as below.
Recommended terminal types:
Suggested cable requirement:
Model
2.2KW
7.5KW
11KW
Please follow below steps to implement motor connection:
1. Remove insulation sleeve 10mm for three conductors. And shorten three conductors 3 mm.
2. Insert wires according to polarities indicated on terminal block and tighten the terminal screws.
NOTE: To reverse the direction of motor rotation, reverse any two wires.
US
International
International standards for motor lead wire
7.5KW Calculation:
255W 1. 560V/Vmpp=panel number N
30.4V
N= 560V/30.4=18.4pcs ≒ 19
8.56A
2. Check if Voc: N*Voc < 800V. If not, please
37.5V
reduce the panel N number to get the value
9.12A
lower than 800.
19*37.5(Voc)=712.5V < 800V
3. Panel numbers in parallel (M):
M Po/(N*Pmax/Ƞ efficiency).
M=7.5KW/(19*255/0.97)=1.6≒2
19 pieces in serial and 2 sets in parallel
Typical Wire size
Amperage
4.8A
15A
22A
Black (BLK) Red (RED)
Gray (GRY) Black (BLK)
7.5KW
Dimensions
d (mm)
18 AWG 4.5
13 AWG 4.5
11 AWG 4.5
Yellow (YEL)
Brown (BRN)
7
Terminal Torque Value
D (mm)
9.5 1.3 ~ 1.4 Nm
9.5 1.3 ~ 1.4 Nm
9.5 1.3 ~ 1.4 Nm
Ground (GND)
Ground (GND)