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Fronius Symo Hybrid
with external battery
Installations instructions
EN
System monitoring
42,0426,0303,EN 015-12082019
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Contents
Connecting the external battery to the Fronius Symo Hybrid .................................................................... 5
Components.......................................................................................................................................... 5
Fronius Checkbox 500V........................................................................................................................ 5
External battery..................................................................................................................................... 5
Fronius Checkbox 500V technical data ................................................................................................ 6
Fronius Checkbox 500V status LED ..................................................................................................... 6
Installing the Fronius Symo Hybrid with the external battery ..................................................................... 7
Tips before commissioning ................................................................................................................... 7
Commissioning .................................................................................................................................... 7
Maximum clearances between the components .................................................................................. 7
Modbus cabling and terminating resistors ............................................................................................ 8
Data cables in the third-party battery .................................................................................................... 8
Installing the Fronius Checkbox................................................................................................................. 9
Safety.................................................................................................................................................... 9
Mounting and connecting up the Fronius Checkbox 500V ................................................................... 10
Installing the ferrite ring for the data line............................................................................................... 10
Installing and configuring Fronius system monitoring ................................................................................ 11
Safety.................................................................................................................................................... 11
Starting for the first time........................................................................................................................ 11
Information to help you work through the technician wizard ................................................................. 13
Software version of the Fronius system monitoring ..............................................................................14
Updating the firmware via the Web....................................................................................................... 15
Performing a third-party battery software update.................................................................................. 15
Fronius system monitoring settings ........................................................................................................... 17
Settings on the Fronius system monitoring website..............................................................................17
Creating IO mapping............................................................................................................................. 17
System monitoring settings................................................................................................................... 17
Troubleshooting ......................................................................................................................................... 18
Troubleshooting .................................................................................................................................... 18
EN
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Connecting the external battery to the Fronius Symo
Hybrid
Components
Solar module
Generates direct current
Inverter – Fronius hybrid
Converts the direct current into alternating current and charges the battery.
Thanks to the built-in system monitoring function, the inverter can be integrated into a network using WLAN technology.
Fronius Checkbox 500V
Needed to establish a secure connection between the inverter and the battery.
CHECKBOX 500V
Third-party battery
Connected on the DC side to the Checkbox and the inverter and stores
electrical energy.
Photovoltaic system consumers
The consumers connected to the PV system (single or three-phase)
EN
Fronius Checkbox 500V
Meter – Fronius Smart Meter
For optimum energy management. You can have the meter installed in a
switch cabinet by your electrical installer.
Grid
The Fronius Checkbox 500V connects the Fronius Symo Hybrid to an external battery. The
inverter and battery must never be directly connected to each other, as an error could lead
to surges that place the system in an unsafe state.
There are separate Installation Instructions for the battery and the Fronius Symo Hybrid.
This document is concerned only with the specifics of establishing a connection to the Fronius Checkbox 500V. The remaining steps for installing the equipment can be found in the
respective Installation Instructions. All Fronius documents are available at the following address: www.fronius.com/energy-package-manuals
External battery Fronius points out that the external batteries are not Fronius products. Moreover, Fronius
is not the distributor of these batteries. Therefore, Fronius does not assume any liability or
guarantee for these batteries.
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Fronius Checkbox 500V technical data
Environmental conditions
Degree of protection IP65
Permissible ambient temperature -25 °C - +60 °C
Maximum altitude 2000 m
Permitted humidity 0 - 100% (non-condensing)
Electrical specifications
Maximum input voltage
Inverter side
Battery side
Maximum current Idc max in / max out 16 A
Self-consumption @ 450 V 1.9 W
Dimensions and weight
Dimensions h x w x d (without packaging) 26 x 19 x 7.5 cm
Weight (without packaging) 1.4 kg
Dimensions h x w x d (with packaging) 36 x 30 x 13 cm
Weight (with packaging) 1.9 kg
Standards and directives
Applicable standards and directives LVD (2014/53/EU), IEC 62109-1
Udc max in_INV
Udc max out_BAT
1000 V
500 V
Fronius Checkbox 500V status
LED
When the status LED lights up green, an electrical connection has been
established between the inverter and the battery.
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