MAKOT MCH-07 v.3 User manual

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PPH MAKOT
ul. Przewóz 34/304
30-716 Kraków | Poland
[phone] [Sales]
[email protected] [Support]
[email protected] [Sales]
1. DESCRIPTION.
The third generation of MCH-07 controller is a universal, combined controller intended for use
in milking machines (devices) and milk tanks. This controller allows you to cool the milk contained
in the tank and to carry out the milk tanks and milking devices washing process.
The controller is characterized by flexibility in adapting it to various requirements. It is fully
programmable at the installation stage, and at the same time protected against possible
interference by the user in the settings.
The controller consists of two complex segments:
cooling segment,
washing segment,
however, it is not possible, even accidentally, to activate the washing process during the cooling
process. The washing segment is activated only when the cooling is switched off.
The MCH-07 controller has a waterproof casing (protection class IP65), adapted for built-up.
On request also the following variants are available:
MCH-07.f with a flange (for panel mounting), in which power as well as control inputs and
outputs are led through glands placed on the back of the casing,
MCH-07.b with the glands placed on the back of the casing is provided, which allows the
controller to be installed in such a way that the wires are hidden.
In the set with the controller there is a temperature sensor. In version MCH-07T an additional
temperature sensor is connected, which controls the heating of the water temperature during
the washing process.
The temperature sensors are in the rubber cover (protection class IP68), ending with stainless steel
sleeve. The controller signals the failure of the temperature sensor.

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MCH-07 casing dimensions
177 x 126 x 56 mm
MCH-07.f casing dimensions
206 x 140 x 56 mm
power supply
230V AC 50/60 HZ
protection class
IP65
safety class
CE
basic version of MCH-07 controller

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MCH-07.f variant (with flange)

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2. INSTALLING AND CONNECTING THE CONTROLLER.
In order to install the controller, unscrew the six screws and swivel the front of the controller, paying
attention to the cable connecting the upper PCB board with the bottom board. After opening
the casing, disconnect this cable. The cable is disconnected by removing the connector plug located
in the bottom plate.
basic version of MCH-07 controller
ATTENTION
Fixing the casing can be done only by screwing using the marked holes. It is forbidden to drill
the casing and fix the casing through such holes, because it causes loss of tightness of the casing.

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dimensioning for assembly MCH-07.f variant (with flange)
connection diagram

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3. COOLING SEGMENT.
Activation of the cooling process by the user blocks the possibility of switching on the washing
process, which results in the total turning off of the washing segment display.
view of the controller with the cooling process on
3.1. Technical data of the cooling segment.
temperature measuring range
from -40,0 OC to +120,0 OC
control temperature range
from -40,0 OC to +120,0 OC
(decreased by a set hysteresis)
measuring resolution of the temperature
measurer
(resolution of control temperature
settings)
1 OC in the scope under -9,9 OC and over
+100 OC
0,2 OC in the scope from -10 OC to +100 OC
control hysteresis
from 0,2 OC to 10 OC in the scope from -10 OC
to +100 OC
from 1 OC to 10 OC in the scope <-10 OC and
>+100 OC

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stirrer / ventilator operation time
from 1 min. to 60 min.
stirrer / ventilator standstill time
from 1 min. to 60 min.
stirrer / ventilator temporary operation
time
from 1 min. to 60 min.
delay time for switching on the chiller
(unit) / stirrer after the controller is
turned on or the power supply is lost
from 1 s. to 999 s.
length of temperature sensors
5 m
type of temperature sensor
thermistor NTC
type of temperature meter
digital LED
load capacity of the relay contacts,
controlling the chiller (unit) /
heating system
30A 250V AC
load capacity of the relay contacts
controlling the stirrer / heating system
10A 250V AC
3.2. Controller functions in the cooling mode.
The cooling segment of the MCH-07 controller is equipped with the functions described below.
1. Continuous temperature measurement function, regardless of whether the controller is on
(must be connected to the power supply) –parameter d1 is set to 1.
2. Control function of the refrigeration system (chiller), depending on the measured temperature
–parameter C9 is set to 0.
3. Light signaling function for switching on the cooling (heating) process –blue diode.
4. Control function of the heating system, depending on the measured temperature –parameter
C9 is set to 1.
5. The stirrer or ventilator control function, enabling the implementation of the following variants
of this control –depending on the F0 parameter settings:
a) automatic operation:
cyclic operation of the stirrer / ventilator, independent of the operating condition
of the chiller / heating system;
the stirrer works continuously during the operation of the chiller and when the chiller
is switched off, the stirrer switches to cyclical operation;
stirrer / ventilator works only when the chiller / heating system is switched on;
continuous operation of the stirrer / ventilator;
b) manually triggered operation:
switching on the continuous operation of the stirrer / ventilator, regardless
of whether the control work of the controller is switched on; in order to end
the stirrer / ventilator operation, press the button [3];

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switching on the stirrer / ventilator operation for a strictly defined time,
independently whether the control work of the controller is switched on.
6. The chiller (unit) operation supervision function, consisting in the possibility of setting
the maximum and the minimum operation time of the chiller, as well as the minimum standstill
time of the chiller –parameters E1 and E2.
7. Registering the maximum and minimum temperature values in the whole cycle of the
controller's operation. This function is connected with the possibility of delaying the saving
of temperature data to the controller's memory since its activation –parameter AA.
8. The function of alarm signaling (visual and audible) of exceeding the set temperature range –
parameters HA and HE. This function is connected with the possibility of delaying the time
of switching on the alarm system of the controller from the moment of its activation.
9. Temperature monitoring and signaling function of the temperature sensor –in this case,
the letters ACU appear on the display.
10. The function of the adjustable delay time for switching on the chiller (unit) and stirrer after
the loss and re-supplying of the voltage –parameter dE.
11. Real-time clock.
3.3. Programming for the cooling segment.
In order to ensure the correct cycle of the controller's operation, it is necessary to program its
operating parameters accordingly. By default, the controller is programmed for standard operating
conditions for the purpose of controlling the milk cooler.
In order to change the default programming, enter the setting mode. Entering the setting mode is
possible only when the cooling process is on; interrupts the current operation of the cooling process.
Entering is done by holding the button marked with the letter Sfor approx. 17 seconds. After
entering the setting mode, UCO appears on the controller's display. The next pressing of the Sbutton
confirms the willingness to make changes. Then press the ▲key to enter the access code and
confirm with the Sbutton.
After correct entry into the setting mode, the symbol of the required parameter is selected using
the ▲and ▼buttons. The entry to the parameter settings is made by pressing the Sbutton.
The change of the parameter value is made using the ▲and ▼buttons; for the change to be saved,
confirm with the Sbutton.
The exit from the setting mode is made by setting the EE parameter and confirming with the Sbutton
or automatically after 17 seconds of inactivity.
The following figure illustrates the programming procedure:

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3.4. Table of settings for the cooling segment.
ATTENTION
The parameters from the table below, which are marked in gray, must not be changed.
The warranty granted by the manufacturer does not cover damage to the controller due to the
change of these parameters.
description of the function
symbol
range of the settings
factory
setting
entry in the setting mode
UC0
access code
1.2
controller operation mode
C9
0–cooling mode
1–heating mode
0
limitation of the lower value for
the control temperature range 1
b1
setting the temperature value from
-40 OC to +120 OC, every 1,0OC
2 (OC)
limitation of the upper value for
the control temperature range 1
b2
setting the temperature value from
-40 OC to +120 OC, every 1,0OC
10 (OC)
control hysteresis
HI
setting the temperature value:
2 (OC)

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from 0,2 OC to 10 OC, every
0,2 OC –in the scope from -10 OC
to +100 OC
from 1,0 OC to 10 OC, every
1,0 OC –in the scope <-10 OC and
>+100 OC
minimum operation time of the
chiller (unit)
CA
0–inactive
1–active; setting the time from
1 min. to 60 min., every 1 min.
0
maximum operation time of the
chiller (unit) 2
CC
0–inactive
1–active; setting the time from
0,5 h to 9,5 h, every 0,5 h
0
minimum standstill time of the
chiller (unit)
CF
0–inactive
1–active; setting the time from 1
min. to 60 min., every 1 min.
0
AF
function not available to the installer
/ user 3
stirrer operation mode
F0
0–operation according to the times
set in E1 and E2, independent of the
operation of the chiller (unit)
1–continuous operation during
the chiller (unit) operation, while
during the standstill of the chiller
(unit), the stirrer works according
to times set in E1 and E2
2–unavailable 3
3–unavailable 3
4–continuous operation,
independent of the chiller operation
and times set in E1 and E2
1
stirrer standstill time
E1
setting the time from 1 min. to 60
min., every 1 min.
15 (min.)
stirrer operation time
E2
setting the time from 1 min. to 60
min., every 1 min.
2 (min.)
stirrer manual operation 4
CP
0–continuous operation
>0 –operation for a specified time
from 1 min. to 60 min., every 1 min.
5 (min.)
delay time of registering
the maximum and minimum
temperatures
and delay time of switching on the
temperature alarm
AA
setting the time from 0 h to 24 h,
every 0,1 h
2 (h)
lower alarm temperature
A1
setting the temperature from -40 OC
to +98 OC
2 (OC)
upper alarm temperature
A2
setting the temperature from -40 OC
to +98 OC
12 (OC)
alarm sound
HE
0–active
1–inactive
0
alarm system (visual and audible)
of exceeding the set temperature
range (A1 and A2)
HA
0–active
1–inactive
0

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scaling the temperature sensor 5
CU
every 0,2 OC
wartość
skalowalna
UU
function not available to the installer
/ user 3
delay time of switching on the
chiller and the stirrer after
connecting the controller to the
mains or power supply decay
dE
setting the time from 1 s. to 999 s.,
every 1 s.
5 (s.)
display status with control disabled
d1
0–the dot is displayed
1–current measured temperature
is displayed
0
return to the factory settings
FA
0–inactive
1–active; after setting to 1 and
disconnecting the controller from
the power supply, switching it back
on restores the factory settings and
the function value is reset to 0
0
exit from the setting mode
EE
1Adjustments must be made so that the condition b1<b2 is always met. The values of parameters b1 and b2
are not control temperature settings; these are the temperature values between which the control temperature
can be set (a section from the entire control temperature range of the controller).
2This function is active only when the minimum standstill time of the chiller has been set (CF).
3Changing the parameter value is not recommended, because it can lead to incorrect operation of the
controller, and even its damage.
4 The manual stirrer operation, depending on the washing program set, can be associated with the washing
segment.
5Set up during the production phase –do not change without a clear need.

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4. DESCRIPTION OF THE COOLING SEGMENT OPERATION CYCLE.
At the moment of connecting to the mains and starting with the button, the controller –after
the delay set in the dE parameter –goes to the control phase.
The controller controls two control circuits:
control circuit for the chiller unit or heating circuit;
control circuit for motoreducer of the stirrer or ventilator.
The work for the control settings of the refrigeration system will be discussed below.
ATTENTION
The dE parameter is the delay of switching on the chiller and the stirrer after switching on the
controller or after power supply failure –factory setting is 5 s.
4.1. Control of the chiller unit.
The control temperature value (in the range specified in the parameters b1 and b2) is set by pressing
the buttons marked with the symbols ▲and ▼. A short press of any of these buttons displays
the currently set value, while the next pressing causes the change of this value. Moving from reading
the measured temperature to the reading of the set control temperature is signaled by the flashing
of digits / numbers.
The chiller control in the cooling phase takes place depending on the temperature present
in a refrigeration chamber. The controller can control the cooling temperature in the range of -40 OC
up to +120 OC. In order to limit the range of control so as to prevent the user of the refrigeration
device from setting the temperature outside this range, the following parameters must be set in the
right ranges: b1 (limitation of the lower control temperature range) and b2 (limitation of the upper
control temperature range).
ATTENTION
Temperatures specified in parameters b1 and b2 are not control points for switching off and
switching on the operation of the chiller.
Setting b1=b2 blocks the possibility of changing the programmed temperature by pressing the ▲
and ▼buttons.
It is not allowed to set b1>b2.
The change in the value of b1 or b2 can be blocked by the currently set control temperature.
In the event of such a situation, change the control temperature settings and then change
the parameters b1 and/or b2.
It is also important to set the control hysteresis correctly –parameter HI. The control hysteresis is
a parameter that determines the temperature difference at which the switching off occurs and then
the chiller is switched on. For example, if the control temperature is set to +4 OC, and the hysteresis
at 2 OC, then switching off of the chiller will occur after reaching 4 OC, while its re-activation will
occur after the temperature has risen to 4+2=6 OC.
The controller makes it possible to set the hysteresis of the control in the range from 0.2 OC to
10 OC, every 0.2 OC.

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ATTENTION
If the controller is set in heating mode, the hysteresis operation has the opposite character,
i.e. the heating system is switched off after the temperature has dropped below the set value,
taking into account the value of the programmed hysteresis.
4.2. Control of the stirrer motoreducer.
The operation status of the stirrer is indicated by a red diode (see section 3.).
The controller has two modes of stirrer operation (automatic or manual), which are described in
detail below.
4.2.1. Automatic operation of the stirrer.
In this mode, depending on the settings of parameters F0, E1 and E2, the stirrer may be connected
to the operation of the chiller or completely independent of it (see section 3.4).
The stirrer operation setting in the automatic mode is signaled by a continuous lighting of the stirrer
operation red diode.
4.2.2. Manually triggered operation of the stirrer.
The manual stirrer operation can be initiated by pressing the button marked with the symbol
(seesection 3.); at this point, the automatic stirrer operation is stopped and the manual operation is
switched over. Manual mode is signaled by a blinking of th stirrer operation red diode.
Manual operation of the stirrer is possible when the controller is turned off, as well as when
the washing process is switched on –depending on the washing program set up and the
configuration made.
The stirrer operation in this mode can be interrupted at any time by pressing the button again.
The manual stirrer operation can take place in two variants, depending on the CP parameter settings:
setting the value 0means continuous operation of the stirrer,
setting the value >0 means that the stirrer operates for the set number of minutes;
after the set time elapses, the manual operation of the agitator is automatically switched
off.

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5. DESCRIPTION OF THE CONTROLLER FUNCTIONS.
Below, some specific controller functions will be discussed, enabling the controller to be used for
various applications.
5.1. Registering the minimum and maximum temperatures.
The MCH-07 controller has the function of recording in the internal memory the values of maximum
and minimum temperatures that occur throughout the controller's entire cycle. This function makes
it possible to check if the milk is stored under the correct temperature conditions. When the device
is switched on, after the set delay elapses (parameter AA –see section 3.4.), the temperature values
are stored in the controller's memory. The programmable delay time of this function allows not to
take into account the maximum temperature when the controller is started and thus to pre-cool
the milk. This time should be selected by the user for the type of tank and the actual operating
conditions of the device.
At any time, you can read the maximum values presently available and minimum temperature
values. The following figure illustrates the reading:
ATTENTION
1. If there are no entries of maximum and minimum temperatures in the controller's memory,
the symbol --- is displayed.
2. The loss of the supply voltage will erase the controller's memory.
At any time, you can manually delete the current maximum and minimum values by pressing the S
button when the maximum or minimum temperature is displayed.

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5.2. Alarming the exceeding of the correct temperature range.
The controller has the function of signaling the exceeding of the set temperature range. In order for
the function to work properly, the appropriate temperature range must first be programmed, that
is: parameter A1 –temperature below which the alarm will be activated, and parameter A2 –
temperature above which the alarm will be activated (see section 3.4.).
The third parameter to be defined is the time delay of switching on the alarm function from
the moment the controller is switched on –parameter AA. This delay eliminates the triggering
of an alarm in the initial cooling phase.
Exceeding the set temperature range is signaled visually and audibly. In the event of an alarm,
the buzzer is triggered cyclically every 1 min. for 5 sec., and alternately: PPP letters and temperature
value are displayed.
ATTENTION
The parameter AA is the same to the delay time specified in the function of recording maximum
and minimum temperature values. In other words, the delay value set in parameter AA will be
the same for recording maximum and minimum temperature and for parameters A1 and A2.
The audible alarm can be turned off by setting the HE parameter to 1(see section 3.4.). In this case,
exceeding the set temperature range is signaled only visually, as shown in the figure above.
The alarm system (audible and visual) can also be turned off completely by changing the HA
parameter to 1(see section 3.4).
5.3. Temperature sensor damage indication.
If the controller detects damage to the sensor, the letters ACU appear on the display and at the same
time the audible alarm is activated. The operation of the chiller and the stirrer is interrupted until
the failure is removed.

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ATTENTION
Sensor damage indication also occurs if the temperature range measured by the controller is
exceeded.
5.4. Delay of switching on the chiller and the stirrer’s motoreducer after voltage decay.
Controller has the ability to protect the chiller and motoreducer in the event of momentary decays
and the appearance of the supply voltage –this is done by setting the dE parameter (see section
3.4.).
5.5. Real-time clock.
From the moment the MCH-07 controller is switched on to the power supply, yet the washing
process is not activated, the current time is displayed.

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6. WASHING SEGMENT.
The washing segment in the MCH-07 controller can only be started with the cooling off.
This segment may vary depending on the version of the controller:
basic version (MCH-07),
MCH-07T1 –version with the possibility of water heating control and thermostatic control,
equipped with one sensor common with the cooling segment,
MCH-07T2 –version with the possibility of water heating control and thermostatic control
equipped with two sensors, a sensor for the cooling segment and a sensor for the washing
segment.
view of the MCH-7 controller with the washing process on

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view of the MCH-7T controller with the washing process on
The washing segment is equipped with:
LED type display, indicating:
with the washing process off –current time (clock)
during implementation of a washing program –time remaining until its completion
(without taking into account the time of pouring water, when using the hydrostatic)
in MCH-07T version, it is possible to set the controller to indicate the current
temperature measured by the temperature sensor
LED diodes marked with numbers 1-8, indicating which relays are active during the
program execution
LED diode with the Tsymbol, indicating the hydrostatic operation
LED diode with symbol, indicating the switching on/off of the washing process
button with the symbol that activates the program; this button is also used to manually
stop the program
button with the symbol, that disables the program

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button with the symbol, used for manual switching on and off the operation of relay 3,
and as a setting button in the service mode (changing settings of the controller)
button with the symbol, that allows you to enter the setting mode
setting buttons with the symbols, enabling: program change, transition to the next
step or going back to the previous one during program execution and making changes
in the program (activated in setting mode)
The controller also has:
8 control outputs: in relays 1-4 and 6-8, the outputs have normally open contacts, while
relay 5 has normally short-circuited contacts and normally open and the input of the
switched voltage, which can have a different value than other relays
switching voltage input for relays 1-4 and 6-8, permanently connected to the L signal
of the 230 VAC supply voltage
switching voltage input for relay 5, any of the range from 6V to 380V, which can be
different from the voltage connected to relays 1-4 and 6-8
input for hydrostatic connection,
input for connecting an additional temperature sensor (version MCH-07T2).
6.1. Technical data of the washing segment.
range of the external temperature of operation
from -10 OC to +50 OC
number of relay outputs
8
load capacity of the relay contacts
10A 250V AC
number of control inputs
1 (hydrostatic)
type of display
LED
range of control temperature setting
(MCH-07T version only)
from 20 OC to 80 OC,
every 0,5 OC
hysteresis range of thermostatic control
(MCH-07T version only)
from 1 OC to 20 OC,
every 1 OC
number of programs available
8
number of factory (default) programs
4
maximum number of steps (sequences) in each program
(maximum number of successive turns of various relays)
100
minimum duration of a step (sequence)
1 s.
maximum duration of a step (sequence)
99 min.
range of time changes with pulsation dosing
1-59 s.

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6.2. Controller functions in the washing mode.
The controller is equipped with a number of functions that, together with the option to create your
own program, allows to adapt the controller to the individual needs (see section 6.4).
1. Washing programs. The controller has 8 programs; three programs for washing the milking
machines (devices) and one program for washing milk coolers are pre-programmed. Factory
programs can be freely modified and deleted. The remaining four places in the controller's
memory enable creating control programs according to the individual needs of the user.
2. Modification and creation of programs (function symbol in the table of settings: EdPr).
The controller allows the user to create a control program. Each program can have a maximum
of 100 steps (sequences), with duration from 1 to 99 min. each. The programming method has
been described in detail in the instruction, in iconographic form. Factory programs can also be
modified according to the needs of the user.
3. Manual activation of the vacuum pump or the stirrer (function symbols: UPP and UPt). This
function is active only when the washing process is not running. Depending on the settings made,
the function is deactivated by pressing again the button that activates the function or
automatically after the time set in the settings.
4. Protection function in case of power supply failure (function symbol: UAP). Loss of power
supply interrupts the execution of the activated washing program. After returning the correct
supply voltage, depending on the settings made, the program execution remains off or starts
in the same place where it was stopped. You can limit the return time in the settings of this
function for interrupted operation after voltage decay (in the range from 1 h to 9 h).
5. Functions related to the clock (function symbols: CL0, CL5, PA and Pb). The controller is
equipped with a real-time clock. The purpose of this clock is the ability to determine the time
(limit hour) separating the two seasons of the day (e.g. morning and afternoon). Depending on
the settings, the following can be set to activate the functions related to the clock:
possibility of dispensing various detergents, depending on the time of day, by switching on
relay 6 in the “morning”(before the set limit hour) and switching on relay 7 in the
“afternoon”(after the limit hour);
work of two different programs, depending on the time of day.
The clock has no time stamp, so settings related to the days of the week or dates are not possible.
6. Pulsation dosing (function symbol: PUL5). This function allows user to set the relay 7 in such
a way that it will be cycled on and off during the step in which this function will be activated.
This function can be activated in any steps during the washing program. Duration of switching
on and off can be set in the range of 1 to 59 s.
ATTENTION
If this function is activated, it is performed only by the relay 7.In this case, setting
the switching on function for relay 7 in the afternoon (also assigned to the clock function) will
activate pulsation dosing, instead of dispensing detergent.
If it is necessary to use both pulsation dosing and dosing of various detergents depending on
the time of day, you should use the option of setting two different programs on, depending
on the time of day.