Steca PAx4, Installation And Operating Instructions Manual

Page: 15 / 64

725.259 | Z04 | 2013-09-23
15
Introduction
Up to 4 Steca Solarix PI 550(-L60) / PI 600(-L60) / PI 1100(-L60) / PI 1200(-L60) stand-
alone inverters can be operated in parallel with the PAx4 parallel switch box on
115 V or 230 V (see table below). One inverter works as a master, the others as
slaves. The PAx4 has 2 outputs.
The PAx4 serves as a communication interface between inverters and a
Tarom
or Power Tarom type charge controller. This enables the PV system to be SOC
1)
controlled.
Example of a possible application.
A
D
C
B
E
F
G
Legend:
A Solar module
B Solar charge controller
C Battery
D Steca Solarix PI sine wave inverter
E Steca PAx4 parallel switch box
F Generator junction box
G Electrical load (230 V or 115V )
Possible configurations:
Parallel operation Master Slave
Con-
tinuous
output
2)
2 x PI 550 / PI 550-L60
1 x PI 550 / PI 550-L60
1 x PI 550 / PI 550-L60 1,000 W
3 x PI 550 / PI 550-L60 2 x PI 550 / PI 550-L60 1,500 W
4 x PI 550 / PI 550-L60 3 x PI 550 / PI 550-L60 2,000 W
2 x PI 600 / PI 600-L60
1 x PI 600 / PI 600-L60
1 x PI 600 / PI 600-L60 1,000 W
3 x PI 600 / PI 600-L60 2 x PI 600 / PI 600-L60 1,500 W
4 x PI 600 / PI 600-L60 3 x PI 600 / PI 600-L60 2,000 W
2 x PI 1100 / PI 1100-L60
1 x PI 1100 / PI 1100-L60
1 x PI 1100 / PI 1100-L60 2,000 W
3 x PI 1100 / PI 1100-L60 2 x PI 1100 / PI 1100-L60 3,000 W
4 x PI 1100 / PI 1100-L60 3 x PI 1100 / PI 1100-L60 4,000 W
2 x PI 1200 / PI 1200-L60
1 x PI 1200 / PI 1200-L60
1 x PI 1200 / PI 1200-L60 2,000 W
3 x PI 1200 / PI 1200-L60 2 x PI 1200 / PI 1200-L60 3,000 W
4 x PI 1200 / PI 1200-L60 3 x PI 1200 / PI 1200-L60 4,000 W
ATTENTION
Risk of malfunction and damage to PAx4.
X
Use only one of the configurations listed above.
1)
SOC = State Of Charge; see also www.steca.com.
2)
Continuous output is distributed amongst both outputs; see also p. 18.
EN