condition “night“ is shown instead of the actual module current. The night condition can only be
determined if no reverse blocking diodes between the modules and the PowerTarom are used.
Another feature of the System-Manager recognizes whether a solar module has been connected or not
(I_mod = no modul). This status is displayed and is also sent to the external data logger. This signal can
be used as theft recognition only if the solar module array is completely disconnected, as this feature
does not recognize the disconnection of single strings in the array. The “no module” detection needs
between 15 and 60 minutes to be raised. If blocking diodes are used the “no module” message appears
during the night instead of the “night” message..
System-Manager status such as “normal charge”, “boost charge” and “equal charge”
indicate which stage of charging is in process. After a certain period of time of operating
in the “boost” and “equal” charging modes, the normal charge mode is resumed. “Deep protection”
(meaning the System-Manager has decided to disconnect the loads to protect the battery from deep
discharge) is also indicated on the display, even when automatic load disconnection has been de-
activated.
System configuration settings such as the selection of the electrolyte ”liquid electrolyte“
for liquid batteries or ”fixed electrolyte“ for sealed batteries as well as manual load
disconnection ”manual auto”, ”manual load off“ or ”manual load on“ are indicated.
5.2 Alarm contact
All PowerTaroms are equipped with a signal contact.. See illustration in chapter 6.4 to locate the
terminals. The signal relais switches if a system fault occurs: under/over voltage, overcurrent; >110%
max. current, SOC < 30%, overtemperature, no module connected, no charging during the last 24 hours.
If one or more of this events occurs the terminal contacts #5 and #6 close and #5 and #4 opens. The error
conditions resets automatically if the reason has stopped. Since software version 12.25 the SOC alarm
will close if the SOC falls 10% below the user defined load disconnect value. Since the default load
disconnect is at 30% the default alarm will come at 40% SOC.
The max. switching power of the contact will be 150 mA, 200V DC. Rds on = 35 Ohm.
Voltage Error Conditions
System voltage
12V
24V
48V
Undervoltage 10.5V
21V
42V
Overvoltage 15V
30V
60V
6 Operating The System-Manager
6.1 Factory Pre-Set Configurations
With the factory pre-set configurations, the System-Manager can be used in most applications without
further programming.
On delivery, the System-Manager is always set with these pre-set basic configurations that enable
immediate use of most typical solar systems after installation. This pre-set configuration match most PV
systems´ demands. We recommend only specialists and authorized dealers to change this factory
configuration.
The System-Manager can at any time be reset to the factory pre-set configurations with the Menu CONF
(chapter 6.5, page 13 facility. NOTE: you must set the battery type with the Menu CONF. Since this
setting is even necessary when no custom programming is desired, this manual provides a detailed
11
Содержание Power Tarom 2070
Страница 28: ......
