Campbell Scientific Morningstar SunSaver-10 10A 12V Regulator User Manual

Page 13

2. Confirm that the current levels of the PV array and load do

not exceed the SunSaver ratings.

3. Tighten all the terminals. Inspect for loose, broken, or burnt

wire connections. Be certain no loose strands of wire are

touching other terminals.

4. Check that the controller is securely mounted in a clean

environment. Inspect for dirt, insects, and corrosion.

5. Check that air flow around the controller is not blocked.
6. Protect from direct sun and rain. Confirm that water is not

collecting under the cover.

7. Check that the controller functions and LED indicators are

correct for the system conditions at that time.

7.0 TESTING AND TROUBLESHOOTING

7.1

ESTING WITH A

OWER

UPPLY

Normal SunSaver operation can be tested with a power supply
used in place of either the PV array input or the
battery. To be certain the SunSaver will not be damaged,
observe the following cautions:

• Current limit the power supply to no more than one half the

SunSaver rating.

• Set the power supply to 15 volts DC or less for 12V systems

and 30 volts DC or less for 24V systems.

• Connect only one power supply to the controller.

OTE

For more information on testing SunSaver

controllers with a power supply contact the

Morningstar Web Site for test procedures

7.2

ROUBLESHOOTING

The SunSaver is very rugged and designed for the most
extreme operating conditions. Most PV system problems will
be caused by connections, voltage drops, and loads.
Troubleshooting the SunSaver controller is simple. Some basic
troubleshooting procedures are listed on the next page.