Classic Manual Rev L
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controller’s deliberate overcharge. The goal is to return each battery cell to its optimum
condition through a series of voltage-controlled chemical reactions inside the batteries.
Resting
“Resting” will show on the display when the Classic is not charging the batteries; this is
typically due to low light. If the Classic is Resting and should not be, ensure AUX 2 is NOT set
to a logic input that is forcing it into Resting.
Mode is OFF
The Classic is unique in that it has multiple charging algorithms for just about any DC input.
Because we support such a wide variety of DC inputs, we have also added a software “ON” and “OFF”
feature. This software “switch” basically turns the relay off, effectively disconnecting the input
source so the Classic will not charge the battery. If you see “Mode is Off” in the bottom right corner
of the MNGP, then the Mode may have been turned off. To turn the mode back on:
Depress the MAIN MENU key several times until CHARGE is highlighted.
Scroll to the right until MODE is highlighted.
Depress the ENTER key.
On this screen, OFF should be highlighted. Use the UP or DOWN ARROW key to change it to
ON, then depress ENTER.
Depress the STATUS key once to return to the main status screen.
NOTE: This is the same menu you would use to change between charging algorithms (i.e., solar,
hydro, or wind).
Adjusting Absorb, Equalize, and Float Voltages
Absorb, Equalize, and Float voltages are fully adjustable. You will need to get the actual voltages
from the battery manufacturer. To adjust these voltages, follow these steps:
Depress MAIN MENU key.
Scroll right or left until CHARGE is highlighted, depress the ENTER key.
Highlight Volts and depress the ENTER key.
Use LEFT and RIGHT ARROW keys to highlight the set point voltage to adjust.
Use UP and DOWNB ARROW keys to lower or raise the voltage.
Press the ENTER key to save the new voltages.
Current Limit
The Classic has a current limit component which interacts with the temperature of the charge
controller. If the Classic is exposed to extremely hot ambient conditions, the output current will be
reduced automatically to keep the Classic safe. If the orange LED comes on the MNGP, it means that
the Classic is in current limit mode. If you believe the Classic is not hot and the orange LED is on,
most likely the current limit set point is too low. To check this, follow these steps:
Depress MAIN MENU key.
Highlight the CHARGE menu and depress the ENTER key.
Scroll to LIMITS and depress ENTER.
Depress the RIGHT ARROW key to highlight “Output Amps” or “Input Amps” column.
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