User Manual

Understanding The Protection Features
De-rating Charging Current:
When the charger senses the environmental temperature is above 50°C, the maximum
charger current will de-rate to 1/2 of the set value (A01 warning code will display). The charger
will recover automatically back to maximum charging current when the environmental
temperature drops to below 45°C.
Over Temperature Shutdown:
When the charger senses the environmental temperature is above 60°C, the charger will
shutdown. It will recover automatically when the environmental temperature drops to
below 45°C.
Battery Reverse Polarity:
When a reverse polarity is connected to the battery bank, “Error Code E08” on the display
will appear.
Charging A Flat Battery
The charger is designed to charge batteries with terminal voltage greater than 17.0Vdc.
Re-charging a at battery requires extreme care and attention. It is best to re-charge using
short frequent cycles rather than one long bulk cycle. Battery damage or failure may occur
if the battery is discharged so deeply.
Understanding The Display Codes
Codes will show on the display when either a function or internal warning / fault, such as
high internal temperature or DC out of range is detected and the charger may shut down to
protect itself until the fault has cleared. See table description below for more information.
Code Description
The charger is in Bulk Charging Mode
Bulk or Boost charge; The battery is charged at the set rated output current of the charger until the battery reaches its nal
charging voltage, known as its absorption voltage. In this step, around 80% of the battery is recovered as fast as possible.
The Charger is in Absorption Charging Mode
Absorption Charge; With the charger voltage held steady, the remaining 20% is replaced with the charger allowing
the current to taper o as the battery approaches full charge.
The charger is in Float Charging & Power Supply Mode
Float; Finally, in the oat stage the charger voltage is lowered and held at a constant and safe predetermined level.
This prevents the battery from being overcharged, yet allows the charger to supply enough current to make up for the
self-discharge losses of the battery, while supporting additional loads connected to the battery (such as DC lighting and
refrigerators). This stage allows for the charger to be used as a DC power supply.
CH3 Input Voltage Check
This will display for 5 seconds every 3 minutes while charging from the alternator input (CH3) and is normal operation
when the charger is checking the under voltage recovery limit (see page 18 for details).
E01
CH3 High Input Voltage Shutdown
This means the unit has detected the input from the Start/Alternator has gone above 16.0V on a 12V input or 32.0V on a
24V input. This error will clear once the input has dropped below 15.5V on a 12V input or 31.0V on a 24V input.
E02
CH3 Low Input Voltage Shutdown
This means the unit has detected that the input from the Start/Alternator has gone below 10.5V on a 12V input or
21.0V on a 24V input. This error will clear once the input has risen above 13.2V on a 12V input or 26.4V on a 24V input.
If you have this error:
• Check that the voltage of your Start Battery is above 13.2V on a 12V input or 26.4V on a 24V input.
• Check that you have not left the “Priority” (Override) feature activated (Manual or Auto)
• Check that the battery cable from the Start Battery is correctly sized.
• Check you don’t have a loose terminal or blown fuse.
E03
CH2 High Input Voltage Shutdown
This means the unit has detected the input from the solar has gone above 45.0V. This error will clear once the input has
dropped below 44.0V.
If you have this error:
• Check the specication of your panels – the Volts Open Circuit (VOC) should not exceed 45VOC
• Make sure the solar panels have not been connected in series as this will increase the VOC voltage of the panel array.
Please Note: Maximum solar VOC input must not exceed 45VOC or damage to the unit will occur.
E04
CH2 Low Input Voltage Shutdown
This means the unit has detected the input from the Solar Array cannot sustain voltage above 14.5v.
If you have this error:
• Check that you are not in a low light/non direct sunlight situation i.e. Early morning / late afternoon.
• This may also happen if your solar panels are inside in a shed with a skylight or Hi Bay Lights running or outside under
Flood Lights.
If you nd this is happening with your unit when stored, we recommend tting a DC Breaker to the output of the DC2DC
24V and turning it o when the unit is not in use/storage.
E05
CH1 High Input Voltage Shutdown
This means the unit has detected that the Main/House battery has gone above 32.0V. This error will clear once the input
has dropped below 31.0V.
This may be due to charging from another source. i.e. Another solar controller or AC battery charger.
E06
Over Temperature Shutdown
When the charger senses the environmental temperature above 60°C, the charger will
Shut down. It will recover automatically when the environmental temperature drops below 45°C.
• Check to make sure the fan is working.
• Make sure the unit has good ventilation.
E07
BTS Over Temperature Shutdown
This means the units Battery Temp Sensor has detected that the batteries are too hot and has shut down to not over
charge the batteries.
If this occurs, take care and check the temperature of the batteries.
• If the Batteries are Hot –you may have a dropped cell or faulty battery. Stop all charging and see your local battery
shop to get your batteries tested.
• If the Batteries/Terminals are still cool or only warm, you may have a bad temp sensor. Unplug the temp sensor and
call Enerdrive.
Enerdrive ePOWER DC2DC 24V Battery Charger Owners Manual (Rev. 1.5) www.enerdrive.com.auPage 30 Page 31