TriStar MPPT 600V Installation & Operation Manual

35TriStar MPPT 600V Operator’s Manual
All settings are for 48 volt nominal systems. Descriptions of battery type and stages are provided
below. See section 4.2 for full details.
Battery Type-Themostcommonbatterytypeassociatedwiththespeciedchargingsettings.
Absorption Stage - This stage limits input current so that the Absorption voltage is maintained.
As the battery becomes more charged, the charging current continues to taper down until the
battery is fully charged.
Float Stage - When the battery is fully charged, the charging voltage will be reduced to the Float
voltage setting.
Equalize Stage - During an equalization cycle, the charging voltage will be held constant at the
speciedvoltagesetting.
Equalize Interval - The number of days between equalization charges when the controller is con-
guredforautomaticequalizations(settingsswitch7).
Switch 7: Battery Equalization
Choose between manual and automatic battery equalization charging. In the manual equaliza-
tion setting, an equalization will only occur when manually started with the pushbutton or when
requested from the equalize menu on the TriStar meter. Automatic equalization will occur accord-
ingtothebatteryprogramspeciedbysettingsswitches4,5,&6inthepreviousstep.
In both settings (auto and manual), the push-button can be used to start and stop battery equal-
ization. If the selected battery charging setting does not have an equalization stage, an
equalization will never occur, even if requested manually.
Equalize Switch 7
manual OFF
automatic ON
Switch 8: Ethernet Security
TheEthernetSecurityswitchenablesordisablescongurationoftheTriStarMPPT600Vset-
tings through the Ethernet connection. When switch 8 is set to disabled, write commands to the
TriStar MPPT 600V custom memory are not allowed through the Ethernet connection. This safety
feature will prevent unintended changes to custom settings, but it is not a substitute for proper
network security.
Conguration via TCP/IP Switch 8
disabled OFF
enabled ON
NOTE:
Adjustment of network settings and custom set-points is always enabled via the RS-232 and EIA-
485 connections. The Ethernet Security switch only enables/disables remote conguration via
TCP/IP.