SMA METER BOX FOR SUNNY BACKUP - Manual (Page 27)

SMA Solar Technology AG 7 Commissioning the Meter Box
Installation Manual METERBOXSBU-IA-en-40 27
7 Commissioning the Meter Box
Requirements:
☐ The Meter Box is firmly mounted to a wall or top-hat rail. (see Section 5 "Mounting", page 12).
☐ The energy meter, the communication cables and the voltage supply are connected to the
Meter Box.
☐ The Sunny Backup system is installed correctly (see technical description of the Sunny Backup
system).
☐ The Sunny Backup system is redundantly grounded (see Technical Description "Sunny Backup
2200 - Integration of a Backup system into a PV plant, designed according to the 'internal
consumption of solar power' principle (Section 33, Para. 2 EEG 2009)").
1. Start the Sunny Backup (see technical description of the Sunny Backup system).
2. Check whether the "RDY" LED lights up green.
If the "RDY" LED does not light up green, make sure the Meter Box is supplied with voltage
(see Section 9 "Troubleshooting", page 30).
3. Check whether the LED next to the "RDY" LED is off.
If the LED next to the "RDY" LED flashes red, make sure the communication between the
Automatic Switch Box, the Sunny Backup and the Meter Box is established
(see Section 9 "Troubleshooting", page 30).
If the LED next to the "RDY" LED lights up red, contact the SMA Service Line
(see Section 13 "Contact", page 38).
4. Check whether the LED next to the "Grid-Meter" jack flashes.
If the LED next to the "Grid-Meter" jack does not flash, check whether the meter for the grid feed-
in and purchased electricity displays a value.
If the meter for the grid feed-in and purchased electricity does not display a value, wait for the
display.
If the grid feed-in and purchased electricity meter
displays a value, slowly turn the reading head on
the grid feed-in and purchased electricity meter
clockwise until the LED next to the "Grid-Meter" jack
starts flashing. To achieve this, the infrared
interfaces on the reading head and on the meter for
the grid feed-in and purchased electricity must rest
on top of each other.