SMA Solar Technology AG
Operation of the Sunny Central String-Monitor
Technical Description
SSMUS-TUS094511
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Setting the monitoring period for individual groups of Sunny Central String-
Monitors
1. Set parameter "
MoniTmGr1On
" thru "
MoniTmGr6On
" to the monitoring start time.
2. Set parameter "
MoniTmGr1Off
" thru "
MoniTmGr6Off
" to the monitoring end time.
3. Select
[Save].
☑ Setting the monitoring period for the groups of Sunny Central String-Monitors is now
complete. Check the monitoring period settings according to the instructions below.
Checking the monitoring period
1. Select the tab "
Spot values
".
2. Check spot value "
ParaCfg
".
– If parameter "
ParaCfg
" displays the message "
WrnMoniTmGr
", this means that the end of
the monitoring period of the particular group is before the beginning of the monitoring
period.
– If parameter "
ParaCfg
" displays the message "
WrnMoniTmCom
", this means that the times
for "
MoniTmComOn
" or "
MoniTmComOff
" have been set incorrectly (see Section "Adjusting
the parameters of the Sunny Central String-Monitor Controller" (page 70)).
☑ Setting of the monitoring period is now complete.
☑ Setting the PV plant monitoring system is now complete.
11.6.3 Allocation of PV strings to groups
1. Log into the Sunny WebBox as an installer.
2. Go to "
System > Devices
" on the web interface.
3. Select the Sunny Central String-Monitor "
SSM-US
" in the list.
4. Select the "
Parameters
" tab.
5. Using parameter "
GrCh0
–
GrCh6
" allocate all strings of the Sunny Central String-Monitors to
a group. The Sunny Central String-Monitor does not monitor groups of less than 4 strings.
☑ The allocation of PV strings to groups is now complete.
