Samlex Solar SCC-30AB Owner's Manual page 37

LCD Display – Fault Messages
The LCD display (1, Fig. 5.1) indicates the following fault messages when SCC-30AB
stops operating.
DISPLAy
Alarm: OC
Over Current
Alarm: OT
Alarm: CPF00
Link Master error
Alarm: CPF04
DC / DC
LowV
Alarm: CPF09
Heat Sink SR Open
Battery Temperature
Sensor (BTS) displays:
- - - 0°C
NOTE: See Table 7.1 under Section 7 – Troubleshooting for remedies
Back of the Unit
The back of the unit (Fig 5.2) has the following input / output connections and DIP
Switches for various settings.
NAME
PV+
PV–
Battery +
Battery –
DIP Switch 1
DIP Switch 2,3,4
DIP Switch 5
BTS
*NOTE: Factory preset condition
Table 5.2. Control & Terminal Connections (At the back of the unit).
ConstruCtion, layout & Controls
DESCRIPTION
Over Current
Heat Sink over
temperature
Display Panel
error
Low Battery Voltage
< 9V for 12V Battery
< 18V for 24V Battery
Low operating
temperature
Battery temperature
is below 0°C
Table 5.1. Fault Messages on the LCD Display.
Connecting terminal for Solar Array Positive
Connecting terminal for Solar Array Negative
Connecting terminal for Battery cable Positive
Connecting terminal for Battery cable Negative
ON* Selection of Battery Voltage for 12V system
OFF Selection of Battery Voltage for 24V system
For programming Battery Type & Charging Algorithm (See Table 6.1)
ON Selection of Auto Equalization
OFF* Selection of Manual Equalization
Battery Temperature Sensor for temperature compensation
CAUSE OF FAULT
The current exceeds 150% of the rated current (45A)
Heat sink temperature exceeds 90°C.
The CPU is not able to exchange data with the
Display Panel.
1. Batteries are discharged below the minimum
acceptable level, or
2. DIP Switch 1 is set for 24V battery but the battery is 12V.
Operating temperature of the unit is below the
specified limit of 0°C or 32°F.
1. Lower limit of temperature compensation is 0°C.
2. Negative values can not be displayed.
DESCRIPTION
5
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