Missouri Wind and Solar 3PAL-DIG-12V Installation manual

Copyright © Missouri Wind and Solar, LLC 2014
Remove and safely brake charging sources
such as wind/solar/hydro. When in doubt, use a
qualified electrician. Missouri Wind and Solar,
LLC is not responsible for damages or injuries
caused by misuse or improper programming.
DANGER! SHOCK WARNING: Wind, solar,
hydro, batteries etc. may produce lethal
voltages! Use extreme caution.
Preset controller configuration (use ½ these
voltages for a 12v system): divert relay on at
28.8 battery volts, start relay off timer at 27.2
battery volts, relay off timer 5 seconds after
27.2 volts is reached. If battery voltage does
not fall below 27.2 volts, the relay will stay on.
WE RECOMMEND YOU DO NOT CHANGE
THE CONTROLLER’S SETTINGS UNLESS
YOU ABSOLUTELY NEED TO. READ AND
UNDERSTAND ALL INSTRUCTIONS
INCLUDED WITH YOUR EQUIPMENT.
WARRANTY WILL BE VOID IF THE
SETTINGS ARE CHANGED
UNECCESSARILY.
Possible reasons to change settings:
You have an inverter charger or other charge
controller which may charge batteries to above
28.8 volts. If another charging source performs
an equalize charge, you can leave the factory
settings alone and safely disconnect the
Missouri Wind Digital Controller while an
equalize charge is taking place.
Outback Inverter Charger/Grid feed
inverters: Typically adjust the DIG controller
high volt trip point to 15 volts (12v system) or
29.5 volts (24v system).
To change settings:
1. Connect the small sense wires to proper
battery voltage or use a dc power supply
(red wire +, black wire -).
2. Wait 6 seconds.
3. Use the two black push buttons below volt
meter “set”& “enter.”
You will be entering P-1 for time setting, P-3
for voltage set points.
4. Hold “enter”until you see “P-3 display”,
then release.
5. Short press ”set”until you see “P-1”
display. This is the time setting. Time
setting is recommended for experienced
users as this changes the amount of time
the relay is on after battery falls to 27.2v, or
13.6v.
6. Press “enter.”You will see “005.”This is 5
seconds. Short press “set”to move the
flashing digit from left to right. Stop on the
digit for the preferred setting. Press “enter”
to confirm the new setting.
If you pass the desired digit, continue to
short press “set”until you cycle back
around to it.
7. After first 3 digits are changed, press “set”
to view the second set of 3 digits. This is
the relay activity timer (RAT). Relay activity
timer starts countdown every time the relay
turns off. The RAT time period is preset at
5 seconds.
Relay Activity Timer: Assuming the RAT is
005 (5 seconds), when the relay has activity
(turns on then off) the RAT will immediately
start a countdown from 5 to 0 seconds.
If the relay turns on again before the
countdown reaches 0, the relay will stay on for
10 seconds then relay off and RAT countdown
starts from 5 to 0 seconds again.
If the relay turns on again before countdown
reaches 0, the relay will stay on for 20 seconds
then relay off and RAT countdown starts from 5
to 0 seconds again.
If the relay does not turn on again before RAT
countdown reaches 0, then the next time the
relay turns on again it will be on for 5 seconds.
The relay must turn on again before the RAT
time reaches 0, otherwise the relay’s on time
will stay at 5 seconds.
The RAT's purpose is to hold the controller in
divert for an increasing amount of time
because your controller is repeatedly diverting
within a short period of time (i.e. batteries
nearing full).
Referring to the example above, 20 seconds is
the maximum amount of time the relay will stay
on if the conditions continue to be met. If you
change the RAT (the second set of 3 digits) to
20 seconds (020 on display), then relay on time
will be 20 sec, 40 sec, 80 sec, 80 sec, 80 sec.,
etc. In most systems there is no need to
change the RAT.
8. The third set of digits will appear as: d-9.
This means the LED display will turn off
after 9 minutes if no buttons are pressed
(user is not changing settings). Changing to
d-0 means the display will always remain
on.
You can turn the display back on at any
time by short pressing any button.
9. After the third set of digits, you will see your
first time setting with no flashing digits.
Hold “enter”until you see P-1.
You are now done with the time (P-1)
settings.
Stop, do not press any buttons or make
changes.
10. If you don't need to change the preset high
or low voltage points, you still need to enter
into P-3 directly after programming P-1. If
this is the case, short press “set”until you
Missouri Wind and Solar Digital Charge Controller Information and Custom Programming Instructions (WHITE COVER MODELS)
Whether or not you will be changing the settings, read and understand these instructions thoroughly. Failure to do so can cause damage to the
controller or system components.

Copyright © Missouri Wind and Solar, LLC 2014
see “P-3.”Press “enter.”
You should see your real-time battery
voltage.
Stop. You are now done with this step.
11. The next step is to set the high and/or low
voltage set points in P-3.
In most cases, only the high voltage set
point needs to be changed.
12. Short press “set”until you see P-3.
13. Press “enter.”You will see your real-time
battery voltage.
14. Short press “set.”You will see 28.8, or 14.4
with the first digit flashing.
This is the high voltage set point (Green Light
ON circuit board indicates relay on,
diverting).
15. Short press “set”to move the flashing digit
left to right. Stop on the digit you want
changed. Press “enter”to change it.
16. When you finish changing the first 3 digits,
short press “set”to move to the next 3
digits on display. You should see 27.2, or
13.6 with first digit flashing. This is low
voltage set point to start timer.
17. Short press “set”to move the flashing digit
left to right. Stop on the digit you want
changed. Press “enter”to change it.
18. When you're done changing the second set
of 3 digits, short press “set”to move to the
next 3 digits on display.
You should see 00.0 with the first digit flashing.
Make sure to leave them at 00.0. Do not
change them.
19. Short press “set”until you see dL9. This
means delay of 9/10 of a second before
relay on (28.8v is reached). 0-9/10 of a
second.
The next set of digits after will be ONL, (leave
on ONL. It is not recommended to change
this setting).
If you change to ONH (experienced
experimenters ONLY), the relay will turn on
and off in reverse.
The relay will turn off at 28.8v and on at
27.2.
ONH will drain or overcharge your batteries
and ruin them!!!
1. Short press “set”one time until you see
your real-time battery voltage on display.
You are now in operation mode.
The controller will be using both the P-1
program and P-3 program together.
Stop. Programming is complete.
TESTING: To ensure your settings are correct,
perform a voltage rise and fall test.
If you don't have a variable dc power supply
then you'll need to charge your batteries with a
charger, wind turbine, or solar panels until you
reach your high voltage set point.
1. Ensure the relay turns on (Green Light
ON).
2. Then, remove the charging source and
apply a load to the batteries to draw them
down below 27.2 volts.
3. The relay should turn off after the timer
runs out. The only time the relay will be on
is if the battery voltage rises to your high
voltage set-point. It should remain on until
the battery voltage falls below 27.2 and the
timer runs out. The relay will turn off.
If the relay is on when it should not be. For
example the relay is on below 27.2 volts for a
longer period of time than your P-1 time
setting.
Keep in mind that your RAT setting, if met, will
increase your first P-1 time setting (see above).
If the relay does not turn on when you reach
your high voltage set point. This would
indicate that the relay was accidentally inverted
where on should be off and off should be on.
Make sure you have selected the ONL (see
above).
Perform your voltage rise and fall test again to
ensure operation is correct.
Note: while in normal operation mode (you are
entered into P-3 and see your real-time battery
voltage) you can short press “enter”to see the
timer screen instead of the voltage screen.
When low volt set-point is reached, you will see
your first P-1 time setting start countdown.
When finished, the RAT countdown will start.
In conclusion, it must be noted that the
controller includes programs: P-1, P-2, P-3, P-
4.
P-2 and P-4 may ONLY be used by inventors
or experienced users. Do not use them with a
typical wind/solar/hydro charge controller
scenario ESPECIALLY if your controller is pre-
wired to other components, or system damage
will occur.
P-2 is similar but opposite than P-3. P-4 is
“voltage overrun”whereas if your voltage is
between a high and a low point, you can have
relay on or off. If you chose relay off between
high and low, then the relay will be on under
low point and on above high point.