Classic User Manual

Classic owner’s manual Rev H 2056
33 | P a g e 1 0 - 0 0 1 - 1 R E V : H
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 Voltage). Then it
will return 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 two 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.
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. SOLAR mode is best suited for shaded or un-shaded PV arrays that are at least one
nominal voltage above the battery voltage. For severe partial shading or PV arrays with nominal voltage
equal to battery voltage, you may also want to try Legacy P&O (Perturb and Observe) MPPT mode.
Legacy P&O
Legacy P&O (Perturb and Observe) mode is a slow tracking mode similar to the Micro Hydro mode but
with the difference that it is slightly faster and will shut off if the power source goes off.
It has two settings that are user adjustable. 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 Legacy P&O mode, the Classic was outputting 500 Watts and the Sweep Depth
percentage was set for 10% (50 Watts), the sweep will bring the input voltage DOWN until the output
power drops down to 450 Watts, then will sweep UP in voltage until the power drops again down to 450
Watts and then go back to the newly found MPP Voltage, waiting for the next sweep.
Wind Track
This mode uses a power curve that is either built by the user or one of the pre-installed graphs. The power
curve consists of 16 set points that consist of output amperage and input voltage, allowing the user to
custom build a curve for their Wind turbine. Please refer to the Wind section of the manual for full details
on programming the curve as well as our video that will help in understanding how to adjust these curves
using the wind graph editor.