samlexsolar SCC-30AB - Control Terminal Connection; Back of the Unit; Fault Messages

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CONSTRUCTION, LAYOUT & CONTROLS
Fault Messages
The LCD displays might have the following fault messages when SCC-30AB stops
operating.
Table 5.1. Fault messages
Display Description Cause of Fault
Alarm: OC
Over Current
Over Current The current exceeds 45 A
Alarm: OT Heat Sink over temperature
Heat sink temperature exceeds
90 ºC
Alarm: CPF00
Link Master error
Display Panel error
The CPU is not able to exchange data
with the Display Panel
Back of the Unit
The back of the unit (Fig 5.2) has the following input / output connections and DIP
Switches for various settings.
Table 5.2. Control Terminal Connection (At the back of the unit)
Name Description
PV+ Connecting terminal for Solar Array Positive
PV– Connecting terminal for Solar Array Negative
Battery + Connecting terminal for Battery cable Positive
Battery– Connecting terminal for Battery cable Negative
DIP Switch 1
ON* Selection of battery voltage for 12V system
OFF Selection of battery voltage for 24V system
DIP Switch 2,3, 4 Battery charge control mode: Battery charging algorithm
DIP Switch 5
ON Selection of Auto Equalization
OFF* Selection of Manual Equalization
BTS Battery Temperature Sensor for temperature compensation
*NOTE: Factory preset condition