Manual

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Note. Use the description below to help complete the calibration of the Classic voltages.
TWEAKS screen
Figure 2.7
Configuring DC Input Source
To select the Mode the Classic will run in, follow the steps below.
 Push the Main Menu button.
 Scroll left or right until Mode is highlighted and then push the Enter button.
 Scroll to the right and highlight the current Mode than use the up and down arrows to set the
mode you want.
 Take note of the Right soft key most modes have some set points that can be adjusted.
 Press the Main Menu button until you get back to the Mode Menu
 Set the ON/OFF to ON and press Enter
The following Modes will appear in this order in the MODE Menu.
Micro Hydro
This mode is intended for use with hydro systems but can be used with other sources as well. When the
Classic first turns on after the input voltage goes above battery voltage, it will sweep from that open
circuit voltage down to battery voltage, finding the maximum power point voltage (MPP V). Then return
the input to that newly found voltage. After the original turn on sweep, the Classic will do mini sweeps at
user adjustable time intervals. If the time interval is set to 0, the Classic will not do any mini sweeps but
will stay on this first found MPP V until the user goes to the mode menu and turns it off and back on
again.
Micro Hydro mode sweeps slightly slower than Solar mode and has 2 user adjustable settings. Sweep
Interval is the time between mini-sweeps, in minutes, and sweeps around the present (i.e. the last found),
MPP Voltage. The range of this sweep is determined by the Sweep Depth user adjustment and is
expressed as a percentage of Watts that the sweep started from. For example, if in Micro Hydro mode,
the Classic was outputting 1000 Watts and the Sweep Depth percentage was set for 20%, (200 Watts), the
sweep will bring the input voltage DOWN until the output power drops down to 800 Watts, then will
sweep UP in voltage until the power drops again down to 800 Watts and then go back to the newly found
MPP Voltage, waiting for the next sweep.
This mode will NOT go to resting even when the input has been disconnected and will always stay awake
so the turbine has the least chance of over-spinning.
Solar
This is the default mode for PV systems and has a very fast sweep (typically1/2 second or less) that will
re-sweep at user adjustable sweep intervals, unless the Classic finds that it needs to do a sweep on its own
because of changing conditions. The timed sweep interval is user adjustable and is in units of
minutes. SOLAR mode is typically best for PV systems, especially if there is partial shading at times
during the day. The Classic will show a message of "PV SHADE" if it thinks the PV array is partially
Battery voltage adjust
Battery voltage
offset
Displayed
battery voltage
PV in voltage adjust
PV in voltage
offset
Displayed
battery voltage