Velleman SOL30UC12V - Manual (Page 5)

SOL30UC12V & SOL30UC24V Rev. 04
25/11/2010 5 ©Velleman nv
Battery voltage.
Load on/off switch [3] has no function.
Output current from battery to DC-load.
Indicates 0.00A when load is switched off.
Use the Load on/off switch [3] to switch the output current to the
load on or off.
Note: in over-discharge protection mode trying to switch on output
to the load will fail and a buzzer will sound. When the system
recovered from over-discharge protection mode (battery charge level
back to normal) press the Load on/off switch [3] 2 times to
restart output current to the load.
Charging current from solar panel to battery
Load on/off switch [3] has no function.
8. Troubleshooting
Problem Possible cause Possible solution
Charging not
indicated on
display when
solar panel is
connected
1. Reverse polarity
2. Loose connection
3. Not enough sunlight 1. Correct polarity
2. Secure connection(s)
3. Reposition solar panel
No output on
load
connections 1. Load switch off
2. Battery not connected,
loose connection or wrong
polarity.
3. Polarity load reversed
4. Over-discharge protection
enabled
5. Short circuit or overload
protection enabled
1. Press switch [3]
2. Connect a battery to the regulator,
check correct polarity and secure
connection
3. Correct load polarity
4. Disconnect load and fully recharge
battery
5. Verify that load is not short circuited and
draws no more than 30A. Press switch [3]
when everything is OK.
9. Technical Specification
SOL30UC12V SOL30UC24V
Solar input current (max.) 30A
Load current (max.) 30A
Solar input voltage (max.) 28V 50V
Over-charge protection 14.5V±0.4V 29.0V±0.5V
Over-discharge protection 10.7V±0.4V 21.4V±0.5V
Rated output voltage 12VDC 24VDC
open circuit voltage (max.) 28V 50V
No-load current <25mA
Voltage loss charging circuit 13.3V±0.4V 26.5V±0.5V
Voltage loss discharging circuit 12V±0.4V 24.0V±0.5V
control method PWM charging
Operating temperature -25°C ~ 40°C