User's Manual

Determining the Installation Location SMA Technologie AG
Page 14 SBRepU-11:NU0207 User Manual
4.3 Determination Procedure
1. Walk with the Sunny Beam into the range of the inverters and activate the Sunny
Beam as described in the Sunny Beam user manual. The inverters must be detected
and registered with the Sunny Beam.
2. Check that the inverters are operating.
3. Walk with the Sunny Beam until approximately three meters from the inverters (not
closer).
4. Set the data request frequency to the maximum frequency (the minimum selectable
interval) via the menu "VIEW OPTIONS/DATA REQUEST FREQ.".
5. Go to the "SETUP/SERVICE/DIAGNOSTICS" menu.
6. Here, you can read the communication quality (see figure below) which is
calculated on the basis of the ratio between the lost data packets and the sent data
packets.
The registered inverters are listed with the last five digits of the serial number. The
following values are also specified:
"S"= data packets sent
"LS"= data packets lost on sending
"LR" = data packets lost on receipt
This is followed by the communication quality calculated in %.
The communication quality specifies the ratio between received and sent data
packets of the registered inverters. With a communication quality of 100 %, the
signal strength is very good and no data packets are lost.
It is important to set the data request frequency back to at least 15 seconds once
you have successfully determined the installation locations of the repeater and the
Sunny Beam. Lower values (under 15 seconds) should only be set for
commissioning purposes (testing the radio connection) and not long-term.
3.PB V:0.00 4.PB V:0.00
SBeam V2.21US firmware
DIAGNOSTICS
1.PB V:2.10 2.PB V:2.04
DEVICE S LS LR
.67890: 204 0 0 100%
3.07V
.67891: 204 0 0 100%
Communication quality
LRLSS
in %