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5.2 TROUBLESHOOTING
Troubleshooting Guide is shown at Table 5.1. Please refer to LED indications at Section 4.5, Table
4.1 for supplementary information.
TABLE 5.1 TROUBLESHOOTING GUIDE
Symptom
Possible Cause
Remarks / Remedy
Solar Panel Status LED
(
1, Fig 2.1
) is not lighted
although solar panel(s)
are exposed to sunlight
• Energy from solar panel(s)
is not available at the Solar
Panel Input Terminals of the
controller.
• Voltage > 8V is not available
simultaneously at the Battery
Terminals of the controller.
• Check solar panel(s) wiring
• Check battery connection and series
fuses and ensure voltage > 8V is available
at the battery terminals of the controller
Solar Panel Status LED (
1,
Fig 2.1
) is Steady ON
Low solar irradiance due to poor
sunlight. PV panel/array voltage is
> 8V but < the battery voltage &
hence, no charging
Ensure that Solar Panel is exposed to
unobstructed and bright sunlight with no
clouds/shading
Solar Panel Status LED (
1,
Fig 2.1
) is fast blinking
Green @ 4Hz
• PV polarity is reversed
• No charging
Correct polarity of Solar Panel connection.
Battery Status LED (
2,
Fig 2.1
) is Green - fast
flashing @ 4Hz and there
is no output at the Load
Terminals
Battery Over Voltage Disconnect
Protection has been activated
due to high voltage of ≥ 16V
/ 32V at the battery output termi-
nals. Solar Panel(s) and Load have
been disconnected
Auto reset at 15V / 30V
Battery Status LED (
2, Fig
2.1
) is steady Orange.
Output is available at the
Load Terminals
Battery Under Voltage Warning
Indication has been activated
at ≤ 12V / ≤ 24V. Output is still
available at the Load Terminals
Charge the battery. Reduce / switch OFF
load to allow the battery voltage to rise.
Will be reset automatically when voltage
rises to 12.2V / 24.4V and LED will go
back to steady Green from steady Orange
Battery Status LED (
2, Fig
2.1
) is steady Red.
No output voltage at the
Load Terminals
Protection against over discharge
of battery has been activated at
≤ 11.1V / ≤ 22.2V and the load
has been disconnected.
Charge the battery. Reduce / switch off
load to allow the battery voltage to rise:
- Load will be reconnected automatically
at 12.6V / 25.2V and the LED will go
back to steady Green from steady Red
Load Status LED (
3, Fig
2.1
) is slow blinking Red
@ 1Hz.
Load has been
disconnected.
Load has been disconnected due
to overload in the load circuit
connected to the Load Terminals:
- Read Section 5.1.4 for details
Remove the cause of overload:
- Reset by manually pressing the Load On/
Off Button (
4, Fig 2.
1) for 8 to 10 sec
- Read Section 5.1.4 for details
…Continued on page 25
SECTION 5 |
Protections & Troubleshooting
Summary of Contents for MSK-10A
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