DISPLAY
20 August 2010 / SunMaster CS15TL/CS20TL / EN
8.6.1 StringMaster*
If a StringMaster Pro has been installed, the StringMaster
home screen appears. Figure 30 is an example. This
screen shows all string variables of StringMaster 1
(“---“ means not used).
Up to three StringMasters Pro can be combined with a
single inverter. This means the StringMasters have to be
configured on the CS20TL display to indicate to what
inverter they belong. Refer to section 8.10.8.
The StringMaster compares all string currents. If one
current stays behind in performance, it sends out an alarm
and the display reads “LOW”. Refer to section 8.10.8.
*
A software update may be necessary to activate this feature.
Contact Mastervolt for more information.
Figure 30: Multimeter inputs per string
The next table describes the messages in figure 30.
Status Description
OK StringMaster x is ON.
OFF StringMaster has been switched OFF.
HW Error Refer to StringMaster manual.
Not Connected StringMaster has no connection to MasterBus. StringMaster has not been configured.
Warning OC: over current (>30A)
NEG: negative current (reverse polarisation)
LOW: Performance (current) low.
OVP1(2) Overvoltage protection of String Input 1 (2)
GFD1(2) Ground Fault Detection and fuse TRIPPED of String Input 1 (2)**
Switch Open: DC switch open (Off)**
** This function is reserved for future use
.
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