Specifications

Extended Diversion Mode -- EDM

The basic operating philosophy of a diversion controller is quite simple. Monitor the battery voltage, and if it

should rise to a predetermined level, connect a diversion load, of sufficient size, to the battery or energy source

to prevent the battery voltage from increasing any further. The amount of time the diversion load is connected

is generally only a few seconds (or less). In this amount of time, the battery voltage will have dropped enough

to be back in the normal region. The controller will continue to open and close the circuit as often as necessary

to prevent battery overcharge. This is the normal mode of operation. The microprocessor uses several advanced

algorithms to determine the proper width of the energy pulses being sent to the diversion load.

There are; however, situations where you would really like the controller to engage the load for a longer period

of time once the batteries get to a “ Full” state. This is what we call Extended Diversion Mode. When you enable

this mode (see jumper settings), and the batteries reach the trip point you have set (the same trip point as the

normal mode), the controller will engage the load for approximately five minutes or until our batteries are

depleted by 15%, which ever comes first.

The EDM mode is very useful for running such items as water pumps or small grid tie inverters that you do not

want turning on and off every few seconds (or fractions of seconds). When you enable the EDM mode, the

wiring remains the same; the difference is that the load you connect will be engaged for a longer period of time.

It is very important that the load you choose is 100% dependable if this controller is being used to prevent

battery overcharge. If the load is not present, then your batteries will overcharge. Grid-tied inverters are no

longer a load if the grid fails (power outage due to thunderstorm etc.). Such a loss of load can also cause

damage to your wind turbine if it depends on this load.

If you will be using the EDM mode with a load that may not be present at all times, then it is important that you

have another controller in parallel that is also monitoring the system with a slightly higher trip point. This

second, failsafe controller will then divert the excess energy to a diversion load that is 100% dependable should

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controller’s load not be present or capable of disbursing all of the excess energy.

As in the case with the normal mode, the load you connect cannot exceed the capacity of the controller. Do not

attempt to hookup highly inductive, high amperage loads (large motors or pumps), as the controller may be

damaged due to high currents during the motor start or stop.

Important, pressing the test button with the EDM jumper set, may at times engage the load for a full 5 minutes.

This is especially true if you have pressed the test button for a very short time or have pressed it repeatedly.

As shipped, the EDM (Extended Diversion Mode) jumper will be hanging on one stud only. We have shipped

it in this manner so the jumper is available to you but not actually being used. To enable EDM, place the jumper

across both of the bottom pins as shown in the voltage selection image.

The EDM is only available in the diversion mode (not the solar charge mode.) The EDM jumper is simply

ignored if you are using the controller in the solar mode.