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All manuals and user guides at all-guides.com
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7.2 Expansion possibilities
Up to 4 Steca PI inverters can be connected in parallel via a parallel switch box
when the system is extended or when additional consumer devices are connected.
The parallel switch box also allows communication with Steca Tarom 4545(-48)
or Steca Tarom MPPT 6000-M charge controllers (software update required). This
allows the PV system to be controlled depending on SOC (State of Charge).
Please refer to the separate PA Link1 operating instructions for more informa-
tion.
(www.stecasolar.com)
8
Fault diagnosis and troubleshooting
Error
LED blinks red
slowly
LED blinks red
quickly
LED illuminates
red permanently
LED blinks red-green
slowly
LED blinks red-green
quickly
Noise
Inverter switches off
when a consumer
device is switched
on
Explanation:
Blinking slowly:
Blinking red/green slowly: 1 s red / 1 s green
Blinking red/green quickly: 0.1 s red / 0.1 s green
9
Commercial and legal guarantee conditions
You can find the warranty conditions in Internet at:
www.steca.com/pv-off-grid/warranties
754.923 | Z02 | 15.51
Cause
Remedy
• System error
X
• Overcurrent
X
• Overheating
X
• Battery undervolt-
X
age or low charge
state
• Battery overvoltage
X
• Fan switched on
X
X
• Load reversal
X
• Power consumption
X
too large
• Battery charge level
X
too low
1 s on / 1 s off
Inform your installation
company and have them
check the system
Switch off the consumer
devices
Switch off the consumer
devices
Charge the battery
System error
Wait until the temperature
conditions have normalized
Switch off the consumer
devices
Technical aspect, no error
Use an inverter with a higher
performance (parallel con-
nection)
Recharge the battery
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