10
your pump can successfully run at. If you are in doubt then the default gure can safely be used.
8. ENTER THE MOTORS MAXIMUM SPEED: Here you can enter the maximum operang RPM of the
motor. This gure may be adjusted up to double the motors rated nameplate RPM but please note that very few pumps can be
operated at this sort of speed. If you are in doubt about the maximum speed that your pump can be operated at then please
set this gure to the same value as the Motors Rated Nameplate speed. Note that this is the value that appears by default.
9. MAXIMUM LEVEL SETTING: This is an automated seng. Reach into the can and raise the oat to where
you would like the maximum milk level to be. The controller will remember the highest posion that the oat reached. If, for
some reason you are unable to perform this seng by raising the oat don’t worry as this gure can be entered manually in
the next step
10. ENTER MAXIMUM MILK LEVEL: In this step the maximum milk level that was created in step 9 is dis-
played and can be altered if desired.
11. MOTOR DIRECTION CHECK: Pressing the up arrow will cause the motor to run at low speed for a couple of
seconds so that you can check that the direcon of rotaon is correct. If it isn’t then turn o the power and, aer the control-
ler screen goes completely dark, remove the controller terminal cover and swap any two wires connected to U,V and W. Once
this is done turn the power on again and you will be bought back to this step, all of your previous programming will have been
saved. Conrm that the direcon is now correct and then press ENTER to connue.
12. SELECT THE OPERATION MODE: There are three choices, the default is ‘Convenonal‘ ,in this mode the
MPC behaves exactly like any other convenonal variable speed milk pump controller. The second choice is Eco-Flow. Eco-Flow
is a soware algorithm (fancy name for a formula )which strives to keep the ow of milk through the heat exchanger as low
and slow as possible in order to allow the heat exchanger to extract as much heat as possible from the milk. This results in a
lower milk delivery temperature to the Vat which saves costs in running refrigeraon plant and also reduces the bacteria count
in the vat. Eco-Flow achieves this lower ow rate by allowing the level of milk in the can to vary within quite wide limits. If the
shed has a large receiving can and does not have a frothing issue then Eco-Flow should work very well if however the plant
has a small can or suers from frothing then do not aempt to use Eco Flow. The third mode is Froth Fighter, this mode tries
to keep the can empty while, at the same me, only running the pump as fast as it needs to. This mode is highly recommended
for sheds that have frothing issues.. The operaon mode can be changed at any me aer setup is completed, see the secon
on changing parameters for instrucons on how to change it.
13. ENTER PUMP OUT TIME: This gure sets the me (in seconds) that the controller will connue to run for
aer the oat is at the boom. This is to allow milk below the level of the oat to be pumped out of the can. Be careful not to
set an excessively long me as this can cause the pump to run dry. The default of 15 seconds is usually a good choice for most
plants.
14. ENTER THE EMPTY CAN INTERVAL: Because of the way that the Eco-Flow mode works it is not un-
common for the receiving can to never empty itself. In some plants this is undesirable as it can lead to excessive froth for-
maon. To combat this a me, in minutes, can be entered aer which the controller will automacally pump the can dry. If the
can empes naturally before this me expires then the mer is reset so it is really the MAXIMUM me that is allowed to
elapse between the can being emped. Seng this gure to 0 will disable this feature.
15. SELECT WHEN RELAY OPERATES: This seng allows you to select when the relay, which is connected
between terminals 10 and 11, turns on. Available opons are: Milk Mode Only, Wash Mode Only, In any Mode.
16. SELECT WHETHER THE RELAY TURNS ON WITH THE PUMP. This allows you to select
whether the relay is on all the me or only turns on when the pump runs.
17. RELAY OFF DELAY. A me, in seconds, can be entered here as a delay before the programmable relay turns o
