USER MANUAL
COMMUNICATION MODULE
SCMI-01
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Translation of the original user manual.
SCMI-01 CONTROL MODULE – DESCRIPTION AND
INSTRUCTION MANUAL
1. INTRODUCTION
The SCMI-01 control module is designed for controlling ASGE–xxAIN WK and ASGE-xxAIN3 WK outdoor inverter units with R410 refrigerant. This module can operate in the
autonomous pressure (evaporation temperature) control mode, autonomous temperature
control mode for cooling or heating, or as a slave unit. In the slave mode, the module serves
as a converter between the control system and outdoor unit; it controls the outdoor unit
compressor performance via a serial line according to voltage 0-10V from an external control
system. The control module is placed in a standard box for mounting on DIN rail. The front
panel has LCD with 2x8 characters and four LED indicators. The green LED indicates the
power-on state and three yellow LEDs indicate the switching state of the module relays.
Setting up the module and downloading the stored data is done using four control keys and a
USB connector. The module is powered by AC voltage of 230V/50Hz. To control the outdoor
unit, the control module is equipped with 9600bps serial communication channel
complemented with power supply circuits to power the outdoor unit communication circuits.
To control the other devices, the module contains three relays with selectable features and a
230V/2A NO (normally open) contact. In addition, this module has two digital TTL inputs, one
voltage input 0-10V/100kΩ, one current input 4-20mA and two inputs for 10kΩ resistance
thermometers (ß=3435).
Fig. 1. SCMI-01 control module
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2. SAFETY INSTRUCTIONS
WARNING
Please read this manual carefully before installing this device!
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This manual is a part of the product and must be kept near the device to be available
to easily obtain the information.
This device is not intended to be used for other purposes than those described below.
Before starting operation, please check the range of operating conditions of the given
installation.
The SCMI-01 control module may be installed only by a company that has the
relevant qualification and is authorized by the manufacturer.
This device is designed for mounting on a DIN rail in a dry and dust-free environment.
Do not allow the water to get into the electrical components; there is a risk of electric
shock or damage to the unit.
Do not allow persons without the necessary qualification, and especially children, to
manipulate the device.
Cleaning and maintenance may only be performed by persons with the suitable
qualification. Otherwise, personal injury or property damage may occur. Do not
dismantle nor repair the device.
Disconnect the device from the power supply before cleaning or maintenance.
Otherwise, an electric shock may occur.
Do not touch the device with wet hands, do not operate it in a wet environment and
do not wash it with water. There is a risk of electric shock.
Damaged power cables must be replaced by the manufacturer, authorized service
center or appropriately qualified person.
Do not repair the device yourself. Otherwise, electric shock or damage to the device
may occur. Contact your dealer, if you need to repair the device.
Immediately turn off the device and disconnect it from the power supply, if any of the
following conditions occurs. Then ask your dealer or an authorized service center for
repair. If you let the device running under these conditions, this may cause a
malfunction, electric shock or fire.
• The power cord overheats or it is damaged.
• An abnormal noise during operation.
• An upstream breaker repeatedly trips.
• The device smells like something is burning.
Ensure that the wires for sensors, load, and power supply are led separately and far
enough from each other, without crossing or parallel leading.
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3. TERMINALS AND WIRING THE UNITS
The SCMI-01 control module is equipped with 20 screw terminals to connect the external
circuits. On one side of the module, there are terminals for supply voltage 230V/50Hz and
terminals for NO contacts of the output relays R1 to R3. Terminals on the other side of the
module allow you to connect a current output 4-20mA from a relative pressure sensor 018bar, output 0-10V from an external performance control, two 10kΩ resistance
thermometers with coefficient ß=3435, two digital TTL inputs and two wires of a serial
communication line for controlling an outdoor unit. To connect external signals from
temperature sensors, pressure sensors, the control voltage of 0-10V, ON/OFF control and
H/C control, ordinary wires with a cross-section of 0.35-1.5mm² can be used. To connect the
outdoor units (SC1 & SC2 signals), shielded wires (cable) with a cross-section of 0.751.5mm² are needed. The cable shielding may only be connected to the protective wire of the
outside unit. Connecting wires length is not critical. Regarding the thermometers, the
temperature measurement error due to wire resistance is 0.1°C if wire cross-section is
0,35mm² and length is 130m. The maximum distance between the control unit and outdoor
unit with respect to the command transmission errors is about 30m when using the
communication rate 9600bps and wire cross section 0,75mm². To connect the supply voltage
of 230V/50Hz and relay outputs, it is necessary to use wires (cables) rated for 230V/50Hz
with a cross-section of 0.5-1.5mm². For 1-phase outdoor units, the terminals SC-1 and
SC-2 of the module must be connected to the terminals 1 and 2 of the outdoor unit,
respectively. For 3-phase outdoor units, the terminals are interchanged, so to work
properly, the terminals SC-1 and SC-2 of the module must be connected to the
terminals 2 and 1 of the outdoor unit, respectively.
No.
1
2
3
4
5
6
7
8
10
11
12
13
14
Label
230V-N
230V-L
R1-0
R1-1
R2-0
R2-1
R3-0
R3-1
VE+
VE4-20mA
+Un
15
16
17
18
19
20
21
22
23
0-10V
GND
T1
GND
T2
On/Off
GND
H/C
SC-1
24
SC-2
Signal type
Input 230V N
Input 230V L
Relay output
Relay output
Relay output
Relay output
Relay output
Relay output
NC
Fan control
Fan control
Current input
Sensor
power
supply
Voltage input
GND
Resistance input
GND
Resistance input
Digital input
GND
Digital input
Communication
signal
Communication
signal
Description
Input of the mains supply voltage – neutral wire
Input of the mains supply voltage – phase wire
R1 relay NO contact 230V/2A
R1 relay NO contact 230V/2A
R2 relay NO contact 230V/2A
R2 relay NO contact 230V/2A
R3 relay NO contact 230V/2A
R3 relay NO contact 230V/2A
Not used
PWM signal to control the indoor fan
Common terminal for PWM signal to control the indoor fan
Current input 4-20mA for a pressure sensor
Output +(18 to 24)V to power a pressure sensor
Voltage input 0-10V for an external control voltage
Common terminal for an external control voltage
Resistance input for T1 temperature sensor (10kΩ, ß=3435)
Common terminal for T1&T2 temperature sensors
Resistance input for T2 temperature sensor (10kΩ, ß=3435)
Digital input for On/Off signal
Common terminal for digital inputs
Digital input for Heating/Cooling signal
Output of serial communication line to control an outdoor
unit
Output of serial communication line to control an outdoor
unit
Recommended accessories:
1) Carel NTC015WF00 temperature sensors (NTC type, IP67, 1.5m cable), 2pcs
2) Alco Controls PT5-18M pressure sensor + cable PT4-M15 (1.5m)
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The control module is equipped with four keys to control and set the module. Press these
keys to access and use the module menus. These menus contain a number of items (or
submenus). You can select or set the menu items using the ▼/▲ keys. Use the ENTER key
to confirm the selected menu item or use the ESC key to exit the current menu and return
one level back. Press this key repeatedly to get to the default screen of the module.
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ESC key to exit the setting without any change, or exit the menu.
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Down arrow key to decrease the value or move down in the menu.
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Up arrow key to increase the value or move up in the menu.
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ENTER key to confirm the value, or shift to the right
Fig. 2. Keys of the SCMI-01 module
4. SETTING THE MODULE
The SCMI-01 control module can operate in the autonomous pressure (evaporation
temperature) control mode, autonomous temperature control mode for cooling, autonomous
temperature control mode for heating (simple heat pump) or in the slave mode. After
powering on, the module is initialized and then the display shows the default screen. For
example, if the module is in the slave mode and the outdoor unit compressor is stopped, the
display shows:
Inputs
Off 0%
When the compressor is running in the Cooling mode, the display shows:
Inputs
On C xx%
Character C indicates Cooling mode and xx represents the desired compressor
performance in percent. After switching to Heating mode (using the H/C input), the character
H is displayed instead of C.
In other modes, this screen is omitted and T1 and T2 temperatures, which are measured by
the resistance thermometers of the module, will appear first. The T1 sensor detects the
temperature of the indoor unit heat exchanger, while the T2 sensor detects the temperature
of the indoor unit supply air.
T1 xx.xºC
T2 xx.xºC
After pressing the ▲ key again:
P x.xx b
T xx.xºC
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The first line shows the pressure (in bars), which is measured by the SCMI-01 module, and
the second line shows the corresponding calculated evaporation temperature for the specific
refrigerant type. The pressure and the calculated evaporation temperature are displayed and
used for control only in the autonomous pressure (evaporation temperature) control mode.
For the other modes, if the pressure sensor is connected, the pressure and the evaporation
temperature are also displayed, but these values are for information only, and they are not
used to control. After pressing the ▲ key again:
Cset xx%
Cact xx%
The xx represents the set (Cset) and current (Cact) compressor performance in %. After
pressing the ▲ key again, the current speed Fact of the evaporator fan and the current
position ExV of the expansion valve are displayed.
Fact xxx
ExV
xxx
After pressing the ▲ key again:
CurrMode
Stop<
Character < indicates the current operation (Stop, Cool, Heat, Wait).
If any error of the outdoor unit is detected, the current error code is displayed in the last
position of the main menu of the control module.
Error
AABBCCDD
The AABBCCDD represents the four two-digit hexadecimal numbers. Each number can take
values 00, 01, 02, 04, 08, 10, 20, 40 or 80, if one error occurs. If multiple errors occur at the
same time, .the displayed value corresponds to the sum of the hexadecimal values of the
individual errors. This means that single digit can take a hexadecimal value of 0 to F (i.e. 0-9
and A, B, C, D, E, and F). List of errors displayed by the SCMI-01 module is given in Chapter
5 on page 19.
Important Cautions:
The actual performance of the compressor (Cact), the current fan speed (Fact), the current
position of the expansion valve (ExV) and errors are detected by the outdoor unit and
transmitted to the SCMI-01 control module SCMI-01 via the communication line.
When controlling the outdoor unit performance, the SCMI-01 module determines the
compressor speed to achieve the required power. The outdoor unit increases the
compressor speed according to its algorithm, and when a certain speed is achieved, about a
3-minute delay is used to stabilize the operation. These delays are used usually when 30%,
45% (and also 75% for some units) of the compressor speed is achieved, and the SCMI-01
module takes this feature of the outdoor units into account.
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Press the ENTER key to enter the main menu for module setting, when the default screen is
displayed. This menu consists of the following items (submenus).
Goal val
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Function
-
Defrost
-
Outputs
-
Reg.cons
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Display
-
Password
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This menu allows you to set the desired temperature depending on
the selected mode. This menu is not accessible in the slave
mode!
This menu allows you to select one of the four basic operation modes
of the SCMI-01 control module.
This menu allows you to set the method and necessary parameters
to defrost the indoor unit evaporator.
This menu allows you to set the function and switching logic of the
output relays of the module.
This menu allows you to set the control constants needed for the
operation of the module.
This menu allows you to set the display of the control module.
This menu allows you to log in to set the control module. Without
logging, you can only view the set parameters (they cannot be
changed). After successful login, this menu is not displayed,
while the log-on state remains valid!
4.1. Using the Password
The access to the set parameters of the module is protected by a six-digit password
201201. This password must be entered in advance (to log on); otherwise, you cannot
change any settings except the display settings. If you try to change settings without
logging, the display returns one level back. When the default screen is displayed, press the
ENTER key to enter the module setting, and select the Password menu.
Settings
Password
After opening this menu, the display shows:
Password
000000
The cursor blinks on the first digit. Use the ▼/▲ keys to set the first digit of the password and
short press the ENTER key to move to the next digit. Repeat this operation to enter all
digits of the password. After setting all digits, long press the ENTER key to confirm the set
password. If the password is correct, the following message briefly appears:
Password
Passw OK
If an incorrect password has been entered, the display shows Error and then the display
returns one level back. If the correct password has been entered, it is possible to
change the module settings for 30 minutes; then the operator is logged out. While the
log-on state remains valid, menu Password is not displayed in the main setting menu
of the SCMI-01 module.
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4.2. Setting the Desired Temperature
In the autonomous modes, this menu allows you to set the desired value of the output or
evaporation temperature in the range of –10.0ºC to +60.0ºC. The factory preset temperature
is +10°C. In the slave mode, the target value is not being set on the module and the
compressor performance is controlled by an external voltage 0-10V. Press the ENTER key to
enter the setting menu, and select the menu for setting the target value.
Settings
Goal val
After opening this menu:
Goal val
+xx.x
The set value is displayed. You can use the ▼/▲ keys to set the selected digit. After you
press the ENTER key, you can change the sign. If you next press the ENTER key, you can
set other digits. Long press the ENTER key to save the set value; the following message
briefly appears:
Saved OK
+yy.y
Then the display returns one level back in the menu. When attempting to write lower than the
permitted value, the error message Err.min appears on the first line of the display and the
minimum permitted value of the set parameter is displayed on the second line. Similarly,
when attempting to write higher than the permitted value, the error message Err.max
appears on the first line of the display and the maximum permitted value of the set parameter
is displayed on the second line.
4.3. Setting the Operation Mode of the SMCI-01 Control Module
Press the ENTER key to enter the setting menu and use the ▼/▲ keys to select the
Function menu.
Settings
Function
Press the ENTER key to open this menu and then you can use the ▼/▲ keys to select the
module function. The current (selected) mode is followed by the sign <.
Operated
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Reg. P
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Slave mode. Slave unit is controlled by an external voltage of 0-10V.
Depending on the external voltage value, the module controls the
outdoor unit compressor performance.
Autonomous pressure (evaporation temperature) control mode
Reg. T*
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Autonomous temperature control mode for cooling
Reg. T+
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Autonomous temperature control mode for heating
Use the ▼/▲ keys to select the desired mode and press the ENTER key to confirm it.
Changing of the mode is briefly confirmed by message Saved OK and then the display
returns one level back in the menu.
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Slave unit mode - Operated
Outdoor unit compressor performance is controlled by the SCMI-01 module according to
direct voltage 0-10V from an external device. The voltage value corresponds to the desired
compressor performance 0-100%. The On/Off switch must be in the On position and, at the
same time, the control voltage must be higher than 0.5V. Otherwise, if the control voltage
drops below 0.5V, the module switches to the Off state. The slave unit can operate in the
heating mode (Heat) or cooling mode (Cool). In the cooling mode, the outdoor unit heat
exchanger operates as a condenser and transfers the heat to the surrounding environment.
The thermometer T1 measures the temperature of the indoor unit heat exchanger (which
operates as an evaporator), and based on the measured temperature T1, the evaporator
defrosting is controlled. In the heating mode, the outdoor unit heat exchanger operates as
an evaporator and its defrosting is controlled by the outdoor unit circuits. The indoor unit heat
exchanger operates as a condenser and its temperature T1 is used to control the outdoor
unit and to protect against exceeding the condensation temperature of the refrigerant used.
The thermometer T2 measures the temperature of the indoor unit supply air. The heating
(cooling) mode can be set via the input H/C and the control module can be activated via the
input On/Off. If the input H/C is not connected, the module operates in the cooling
mode; if this input is connected to the common terminal, the module operates in the
heating mode. If the input On/Off is not connected, the module is switched off; if this
input is connected to the common terminal, the module is switched on. The outdoor
unit is controlled via a serial line, which also supplies its communication circuits. For 1-phase
outdoor units, the terminals SC-1 and SC-2 of the module must be connected to the
terminals 1 and 2 of the outdoor unit, respectively. For 3-phase outdoor units, the terminals
are interchanged, so to work properly, the terminals SC-1 and SC-2 of the module must be
connected to the terminals 2 and 1 of the outdoor unit, respectively.
Fig. 2. SCMI-01 control module in the slave mode
-8-
Autonomous pressure (evaporation temperature) control for cooling – Reg. P
In this mode, the outdoor unit compressor performance is controlled to keep the desired
pressure behind the indoor unit evaporator and thereby also the evaporating temperature of
the refrigerant R410A. The pressure is measured by the pressure sensor with the output of
4-20mA in the range of 0-18bar (relative). The resistance thermometer T1 measures the
temperature of the indoor unit evaporator and the SCMI-01 control module uses this
temperature to control the evaporator defrosting. The thermometer T2 measures the
temperature of the indoor unit supply air. The control module can be activated remotely using
the digital input On/Off. If the input On/Off is not connected, the module is switched off;
if this input is connected to the common terminal, the module is switched on. The
outdoor unit is controlled via a serial line, which also supplies its communication circuits. For
1-phase outdoor units, the terminals SC-1 and SC-2 of the module must be connected to the
terminals 1 and 2 of the outdoor unit, respectively. For 3-phase outdoor units, the terminals
are interchanged, so to work properly, the terminals SC-1 and SC-2 of the module must be
connected to the terminals 2 and 1 of the outdoor unit, respectively.
Fig. 3. SCMI-01 control module in the autonomous pressure control mode
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Autonomous temperature control mode for cooling (heating) - Reg. T* (T+)
In this mode, the outdoor unit compressor performance is controlled to keep the set
temperature for cooling (or heating). The room temperature is measured by the resistance
thermometer T2. The resistance thermometer T1 measures the temperature of the indoor
unit heat exchanger. The thermometer T2 measures the temperature of the indoor unit
supply air. In the cooling mode, this heat exchanger operates as an evaporator and the
measured temperature is used to control its defrosting, while in the heating mode, it operates
as a condenser and the measured temperature is used to control the outdoor unit and protect
against exceeding the condensation temperature of the refrigerant used. The control module
can be activated remotely using the digital input On/Off. If the input On/Off is not
connected, the module is switched off; if this input is connected to the common
terminal, the module is switched on. The outdoor unit is controlled via a serial line, which
also supplies its communication circuits. For 1-phase outdoor units, the terminals SC-1 and
SC-2 of the module must be connected to the terminals 1 and 2 of the outdoor unit,
respectively. For 3-phase outdoor units, the terminals are interchanged, so to work properly,
the terminals SC-1 and SC-2 of the module must be connected to the terminals 2 and 1 of
the outdoor unit, respectively.
Fig. 4. SCMI-01 control module in the autonomous supply air temperature control mode
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4.4. Setting the Evaporator Defrosting
This menu allows you to set the method and necessary parameters to control the defrosting
of the evaporator of the indoor unit when running in the cooling modes. In the heating modes,
the indoor unit heat exchanger operates as a condenser and defrosting of the outdoor unit
evaporator is controlled by the outdoor unit. Press the ENTER key to enter the setting menu
and use the ▼/▲ keys to select the Defrost menu.
Settings
Defrost
After opening this menu, you can use the ▼/▲ keys to select and set the following
parameters:
Mode
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Setting the defrosting mode of the indoor unit evaporator.
Period
-
Length
-
Start
-
Stop
-
Setting the minimum time period (in minutes) between successive
defrosting cycles of the indoor unit evaporator.
Setting the maximum duration (in minutes) of defrosting of the
indoor unit evaporator.
Setting the T1 temperature to start defrosting of the indoor unit
evaporator.
Setting the T1 temperature to stop defrosting of the indoor unit
evaporator.
To start defrosting of the indoor unit evaporator, the set temperature to start defrosting must
be reached and simultaneously the set minimum period from the last defrosting must have
elapsed. Evaporator defrosting is stopped when the set temperature to stop defrosting is
reached or the set maximum time length of defrosting has elapsed.
Setting the defrosting mode of the indoor unit evaporator.
Press the ENTER key to enter the setting menu and use the ▼/▲ keys to select the Defrost
menu. After opening this menu, select and set the Mode menu with the following options:
Off
-
Defrosting the indoor unit evaporator is not in use.
External
-
Reverse
-
If the condition for defrosting the evaporator is met, the compressor
is stopped until the condition for termination of defrosting is met.
Simultaneously, to accelerate the defrosting process, relay with
Defrost function can activate an external device (the heating cable,
fan etc.).
If the condition for defrosting the evaporator is met, the operating
mode is switched from cooling to heating, the function of indoor and
outdoor heat exchangers is swapped, and the indoor unit evaporator
is defrosted. After the condition for termination of defrosting is met,
the operating mode returns to its original state.
You can use the ▼/▲ keys to select the desired indoor unit evaporator defrosting mode and
confirm it with the ENTER key. Changing of the defrost mode is briefly confirmed by
message Saved OK and then the display returns one level back in the menu.
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Setting the minimum defrosting period
Press the ENTER key to enter the setting menu and use the ▼/▲ keys to select the Defrost
menu. After opening this menu, select the Period menu.
Defrost
Period
After opening this menu:
Period
xx.x
The xx.x represents the set minimum defrosting period in minutes. Use the ▼/▲ keys and
the ENTER key to set the individual digits. You can set 0.1-99.9 hours; the default value is
1 hour. Long press the ENTER key to save the set value; the following message briefly
appears:
Saved OK
yy.y
Then the display returns one level back in the menu.
Setting the maximum duration of defrosting
Press the ENTER key to enter the setting menu and use the ▼/▲ keys to select the Defrost
menu. After opening this menu, select the Length menu.
Defrost
Length
After opening this menu:
Length
xx.x
The xx.x represents the set maximum duration of defrosting in minutes. Use the ▼/▲ keys
and the ENTER key to set the individual digits. You can set 1.0-99.9 minutes; the default
value is 10 minutes. Long press the ENTER key to save the set value; the following
message briefly appears:
Saved OK
yy.y
Then the display returns one level back in the menu.
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Setting the T1 temperature to start defrosting
Press the ENTER key to enter the setting menu and use the ▼/▲ keys to select the Defrost
menu. After opening this menu, select the Start menu.
Defrost
Start
After opening this menu:
Start
-xx.x
The set temperature to stop!!! defrosting is displayed. Use the ▼/▲ keys and the ENTER
key to set the individual digits and sign. You can set –20.0°C to +5.0°C; the default value is
-5.0°C. Long press the ENTER key to save the set value; the following message briefly
appears:
Saved OK
-yy.y
Then the display returns one level back in the menu.
Setting the T1 temperature to stop defrosting
Press the ENTER key to enter the setting menu and use the ▼/▲ keys to select the Defrost
menu. After opening this menu, select the Stop menu.
Defrost
Stop
After opening this menu:
Stop
+xx.x
The set temperature to stop defrosting is displayed. Use the ▼/▲ keys and the ENTER key
to set the individual digits. You can set +3.0°C to +25.0°C; the default value is +7.0°C. Long
press the ENTER key to save the set value; the following message briefly appears:
Saved OK
yy.y
Then the display returns one level back in the menu.
- 13 -
4.5. Setting the Output Relays and Fan Speed
The SCMI-01 control module has three output relays with NO (normally open) contacts,
which can switch 230V/2A. This module can also control the indoor fan speed using PWM
(Pulse Width Modulation) Press the ENTER key to enter the setting menu and use the ▼/▲
keys to select the Outputs menu. After opening this menu, you can select the desired
output.
Relay 1
-
Setting the output relay R1 of the control module
Relay 2
-
Setting the output relay R2 of the control module
Relay 3
-
Setting the output relay R3 of the control module
DC Vent
-
Setting the indoor fan control mode
Then you can set the function and the switching logic for each relay or set the indoor fan
control mode or set the fan speed directly.
Relay function
This menu allows you to set the function of the selected relay.
Relay x
Function
Individual relays of the control module may have the following functions:
ON/OFF
-
Compres.
-
Defrost
-
Error
-
Heat/Coo
-
Limiting
-
The relay is controlled by the digital input On/Off of the control
module.
The relay is controlled identically with the outdoor unit compressor.
The relay is controlled identically with the defrosting of the indoor
unit evaporator.
The relay is activated, if an error state is detected.
The relay is controlled by the current state of the system
(Heat/Cool).
The relay is activated when the set limit of the compressor output is
exceeded.
There are not any other parameters to set for the first five relay functions; for the relay with
the Limiting function you need to set the following parameters after you select and confirm
this function:
Min sp.
-
Max sp.
-
Delay
-
Setting the compressor output limit to deactivate the relay with
Limiting function
Setting the compressor output limit to activate the relay with
Limiting function
Setting the period of time for which the Max sp. must be overcome
Setting the compressor output limit to deactivate the relay – Min sp.
This parameter allows you to set the lower output limit of the outdoor unit compressor in % of
its maximum output. If the relay with Limiting function has been activated due to exceeding
the Max sp., and then the compressor output drops below the Min sp., the relay will be
deactivated. You can set the value from 0.0 to 99.0% by 1%. When the compressor output
drops below the set limit, the relay will be deactivated with about 30s delay.
- 14 -
Setting the compressor output limit to activate the relay – Max sp.
This parameter allows you to set the upper output limit of the outdoor unit compressor in % of
its maximum output. If the compressor output exceeds the Max sp. for Delay minutes, the
relay with the Limiting function will be activated. You can set the value from 0.0 to 99.0%
by 1%.
Setting the duration of the condition for changing the relay state – Delay
This parameter allows you to set the period of time in minutes for which the compressor
output must exceed the Max sp. to activate the relay with Limiting function. You can set this
value from 0.0 to 99.0% by 0.1 minutes.
Relay logic
This menu allows you to set the switching logic of the selected relay. Relay switching logic
can be direct or inverse.
Direct
-
The relay contact is closed if relay function is activated (and vice versa)
Inverse
-
The relay contact is opened if relay function is activated (and vice
versa). (This applies only when the module is turned on.)
Setting the indoor fan control mode
This menu allows you to set the indoor fan control mode or set the fan speed directly using
the FMD-01 module. You must connect this module to the SCMI-01 unit via wiring that
connects the corresponding VE+ and VE- terminals on the SCMI-01 unit and FMD-01
module.
- Setting the speed and control mode of the indoor unit fan
Fixed
- The fan speed is controlled according to the compressor speed in the
Auto 1
Auto 2
-
Off
-
1:1 ratio
The fan speed is controlled according to the compressor speed in the
60-200% ratio
The output to control the indoor fan speed is not used
Setting the Constant Fan Speed – Fixed
This menu allows you to set the constant speed of the indoor fan using the additional FMD01 module. The speed can be set from 30 to 100% of the maximum fan speed. After setting
the required fan speed, short press the ENTER key to confirm the set value. Then you have
to select the indoor unit fan operation mode. If the Co – compressor is selected, the indoor
fan runs at the set speed only if the outdoor unit compressor is running; if the Fa – fan is
selected, it runs only if the outdoor fan is running; if On is selected, it runs continuously at the
set speed regardless of the outdoor unit operation. Use the ▼/▲ keys to select the desired
mode and long press the ENTER key to save the set outdoor fan speed and mode.
Automatic fan speed control Auto 1
In this option, the indoor unit fan speed is derived from the outdoor compressor speed in the
1:1 ratio. This means, for example, that at 50 percent of the compressor speed, the indoor
fan runs also at 50 percent of its maximum speed.
Automatic fan speed control Auto 2
In this option, the indoor unit fan speed is derived from the outdoor compressor speed at the
preset ratio. The ratio of the indoor fan speed to the outdoor compressor speed can be set
using the USBCommunicator program or using the ▼/▲ keys on the SCMI-01 unit display
in the range of 60 to 200 percent. Press the ENTER key to save the set ratio into the SCMI01 unit.
- 15 -
Off mode
In this mode, the output to control the indoor unit fan speed is not used
Setting the Control Constants
This menu allows you to set the control constants of the SCMI-01 module. Press the ENTER
key to enter the setting menu and use the ▼/▲ keys to select the Reg.cons menu. After
opening this menu, you can select and set the control constants.
Time con
-
Setting the time constant of the module.
Prop.con
-
Setting the proportional constant of the module.
Int.cons
-
Setting the integral constant of the module.
Der.cons
-
Setting the derivative constant of the module.
Time constant
It determines the time period to perform the control and can be set from 10 to 999 sec. The
default value of the time constant is 30 seconds.
Proportional constant
It has a basic effect on the control process. The smaller proportional constant, the minor
interventions of the controller in the period given by the time constant. The default value is 35
and can be set from 0 to 999.
Integral constant
It allows to reach the minimum deviation of the regulation. Use caution when adjusting the
integral constant. If this constant is too high, the controlled system may be unstable and
prone to oscillation. The default value is 0 and can be set from 0 to 999.
Derivative constant
It determines, how the rate of the changes of the controlled variable effects the control
process. At higher derivative constant the system will be more responsive to the changes
and will counteract these changes. The default value is 60 and can be set from 0 to 999.
How to set the control constants
Characteristics of the controlled system must be considered when adjusting the control
constants. According to the rate of change of the controlled variable, the time constant must
be set first. The time constant should be generally at least twice the time it takes, when the
change of the desired value, set on the control module, starts to show in the system output.
It is not recommended to set the time constant value lower than about 30 seconds. The value
of the proportional constant affects the control accuracy and also the influence of the
derivative and integral constants on the controlled process. If you cannot achieve the desired
value with the required minimum deviation, it is necessary to increase the proportional
constant. It is also necessary to monitor the deviation between the desired and actual value
and adjust the derivative constant according to this deviation. If the system responds too fast
to the interventions of the controller and there is overshooting of the controlled variable, it is
necessary to increase the derivative constant. If the system cannot reach the desired
minimum deviation from the desired value for a long time, it is necessary to carefully increase
the integral constant. Settings of the control constants for the given operation mode of control
module may need to be adjusted and adapted to the new conditions if the mode is changed.
- 16 -
4.6.
Settings the Display
This menu allows you to set the parameters of the display of the SMCI-01 control module.
Press the ENTER key to enter the setting menu and use the ▼/▲ keys to select the Display
menu.
Settings
Display
After opening this menu, you can set the following display parameters.
Backlit
-
Setting the brightness of the LCD backlight.
Contrast
-
Setting the contrast of the LCD.
IdleTime
-
Language
-
Setting the time period to restore the default screen of the display, if
the operator is idle.
Setting the language version.
Setting the backlight and contrast of the LCD
Both settings are similar and you can do this without entering the password to logging in.
After opening the Display menu, the menu item for setting the backlight is displayed.
Display
Backlit
After opening this menu, the current backlight level is displayed using 1 to 16 bars.
Backlit
||||||||
You can use the ▼/▲ keys to change the backlight level and then use the ENTER key to
save the setting. In a similar way, you can set the contrast of the LCD.
Setting the timeout
This menu allows you to set the time period after which the display returns to the default
screen if the operator is not active. To set the time period of inactivity, open the Display
menu and then open the IdleTime menu.
Display
IdleTime
- 17 -
After opening this menu:
IdleTime
xxx
You can use the ▼/▲ and ENTER keys to set the timeout from 1 to 999 sec. and then long
press the ENTER key to save the set value. Saving is briefly confirmed by message Save
OK and then the display returns one level back in the menu.
Setting the language version
The default factory language set is CZE+ENG (Czech + English). Using the
USBCommunicator, it is possible to upload the SCMI-01 menu in the desired language set,
consisting of two language versions: the required language + English. You can choose from
5 language sets (CZE+ENG, GER+ENG, CRO+ENG, POL+ENG, SVK+ENG). The upload
instructions are described in sinclair_manual_user_usbc_scmi-01_cz_v02.docx.
Display
Language
After opening this menu:
Language
Cesky
or
Language
English
The current (selected) language version is followed by the sign <.
You can use the ▼/▲ keys to change the language version and then press the ENTER key
to save the setting. Saving is briefly confirmed by the message Zaps. OK for the Czech
version or Saved OK for the English version and then the display returns one level back in
the menu.
- 18 -
5. ERROR MESSAGES
5.1. Sensors and Communication Errors of the SCMI-01 Module
During its operation, the SCMI-01 module tests the connection of the T1 & T2 resistance
thermometers, and in the autonomous pressure (evaporation temperature) control mode, it
also tests the connection of the pressure sensor to the input 4-20mA. Besides that, it also
tests the communication with the external unit. The module checks the electrical resistance
of both temperature sensors, and if some limit values are detected, it sends a command to
the outdoor unit to gradually stop the compressor. At the same time, it displays the
corresponding error message on the display to distinguish short/open circuit of the
temperature sensor. Errors are indicated in the following sequence. The possible error of the
T1 thermometer will be displayed first, and the next error may be displayed only after fixing
the previous error. Example: Open circuit of the T1 thermometer:
Error T1
Open
Only after fixing this error, the next error, such as a short circuit of the T2 thermometer, may
appear:
Error T2
Short
If both thermometers are functioning properly, the short/open circuit of the pressure sensor
connected to the current input 4-20mA may be indicated next. In addition, a low-pressure
error on the suction side of the outdoor unit compressor may appear.
Error P
Low
Also, in this case, the SCMI-01 module sends a command to stop the outdoor unit
compressor; the operation will resume when the pressure exceeds the minimum allowed
value.
If the communication between the active SCMI-01 module and the outdoor unit is
interrupted (the module is switched on and the demanded compressor output is greater than
30% in the controlled mode), this status is after about 20 seconds indicated on the display
as:
Err.comm
Disconnected
In this case, it is necessary to check for broken or swapped communication wires that
connect the SC-1 & SC-2 terminals of the SCMI-01 module to the corresponding terminals of
the outdoor unit.
If the power and communication cables are placed side by side, this may cause
interference to the communication line, resulting in interrupted signaling of speed or status of
the compressor, fan and expansion valve. In this case, you must use a shielded
communication cable and connect its shielding with the protective wire of the outdoor unit
(connect the cable shield to the ground of the outdoor unit) to eliminate this problem.
- 19 -
5.2. Outdoor Unit Errors
Current errors of the outdoor unit are displayed in the last position of the main menu of the
SCMI-01 module. The first line contains the title Error and the second line contains four twodigit hexadecimal error codes (or the sum of these codes, if multiple errors occur). After
eliminating the displayed errors, this item will cease to be displayed. To view already not
displayed errors, you should press ESC and ENTER keys simultaneously, when the default
screen of the SCMI-01 module is displayed. You must press these keys in the given order,
i.e. first press and hold ESC key and then press also the ENTER key. The display shows:
Err -1
AABBCCDD
The number –1 after the title Error identifies the last (previous) error and the second line is
the same as when displaying the current error, i.e. four two-digit hexadecimal error codes (or
the sum of these codes, if multiple errors occur). You can use the ▼/▲ keys to display other
previous errors with numbers from –2 to –8, i.e. it is possible to display up to eight previous
errors. If the number of errors stored in the SCMI-01 module memory is lower than 8,
horizontal dashes will be displayed instead of error codes in the empty positions. If the
number of previous errors exceeds 8, all stored error records are shifted and the oldest one
is deleted. In this way, the error list is updated whenever a new error occurs and it cannot be
deleted nor changed by another way. Summary of errors is given in the following tables:
Errors displayed in the AA position
- Compressor discharge high-temperature protection
01
E4
- Lack of refrigerant protection
02
- Fan DC motor protection
04
- 4-way valve protection
08
- Overcurrent protection
10
- Overload protection
20
H3
- Compressor low pressure protection
40
E3
- Compressor high pressure protection
80
E1
Errors displayed in the BB position
- Indoor unit freezing protection
01
- Outdoor ambient temperature sensor malfunction
02
F3
- Discharge temperature sensor malfunction
04
F4
- Condenser temperature sensor malfunction
08
F2
- Condenser inlet tube temperature sensor malfunction
10
- Invalid power code (invalid position of the jumper)
20
C5
- Drive unit memory chip malfunction
40
80
Errors displayed in the CC position
- Protection against starting compressor at a low frequency at a low voltage
01
- DC Bus overvoltage protection
02
- AC current protection
04
- IPM protection
08
- PFC protection
10
- Start up malfunction
20
- Compressor wrong phase order protection
40
- Drive unit module sensor malfunction
80
- 20 -
Errors displayed in the DD position
- Compressor overcurrent protection
01
P5
- Power supply protection
02
- Circuit current measurement malfunction
04
- Compressor desynchronization protection
08
H7
- Compressor stalling protection
10
20
- Drive unit module high-temperature protection
40
- Drive unit module sensor malfunction
80
In addition to the above errors, the unit automatically checks each parameter setting whether
the set values are within the allowed range. When attempting to write lower than the
permitted value, the error message Err.min appears on the first line of the display and the
minimum permitted value of the set parameter is displayed on the second line. Similarly,
when attempting to write higher than the permitted value, the error message Err.max
appears on the first line of the display and the maximum permitted value of the set parameter
is displayed on the second line.
The error codes E1-P5 are displayed on the digital display of the main board of the outdoor
unit ASGE-xxAIN WK and ASGE-xxAIN-3 WK.
6. TECHNICAL PARAMETERS
Supply voltage range:
230V/50Hz ±10%
Maximum input power:
15VA
Net dimensions (W x D x H): 70 x 58 x 90 mm
Net weight:
210 g
Operating temperature:
0°C to +60°C
Storage temperature:
-25°C to +70°C
Inputs:
2 x digital input with TTL levels
2 x input for temperature sensors Carel NTC015WF00, 10kΩ ß
= 3435
1 x voltage input 0-10V with input resistance of 100kΩ
1 x current input 4-20mA for pressure sensor 0-18bar Alco
Controls PT5-18M
Outputs:
3 x relay with NO (normally open) contact, max. 230V/2A
Communication:
Service connector:
Warning:
Serial communication for controlling the outdoor unit, combined
with the power supply of the outdoor unit communication circuits
(about 18-22V/100mA).
USB, Mini-B connector
It is not possible to use an ordinary USB to serial data
converter to monitor the communication between the
indoor and outdoor units because of alternation (timedivision multiplexing) between the serial communication
data signal and the supply voltage of up to 22V (used to
supply the communication circuits of the outdoor unit) on
the SC-1 & SC-2 terminals of the SCMI-01 module.
7. CONTENTS OF PACKAGING
SCMI-01 communication module
Temperature sensor
Instruction manual (CD)
1pc
2pc
1pc
- 21 -
8. SUMMARY OF THE MODULE SETTINGS
Main menu
Goal val
Function
Defrost
Submenu/Option
Range
Default
Setting the desired temperature; this menu is not accessible in the -10 to +60
+10,0°C
slave mode.
Operated
Slave unit mode. The module is controlled by an external voltage 0- Operated
10V.
Reg. P
Autonomous pressure (evaporation temperature) control mode
Note:
p. 7
Reg. T*
Reg. T+
Mode
p. 10
Period
Outputs
Reg.cons
Display
Autonomous temperature control mode for cooling
Autonomous temperature control mode for heating
Off
Defrosting the indoor unit evaporator is not in use
Off
External
Defrosting with an external support (heating cable
etc.)
Reverse
Defrosting by switching from cooling to heating
mode.
Setting the minimum time period between defrosting 0.1 to 99.9 1 hour
cycles
Length
Start
Setting the maximum duration of defrosting
Setting the temperature to start defrosting
Stop
Relay 1
Setting the temperature to stop defrosting
+3 to +25.0 +7,0°C
Function
ON/OFF
The relay is controlled by On/Off On/Off
input.
Compres.
The relay is controlled according to
the compressor
Defrost
The relay is controlled according to
the operation (Heat/Cool)
Error
The relay is controlled according to
the error state
Heat/Coo
The relay is controlled according to
the operation (Heat/Cool)
Limiting
The relay to limit the long lasting
compressor load.
Logic
Direct
Relay switches with direct logic
Direct
Inverse
Relay switches with inverse logic
Relay 2
Relay 3
Function
Logic
Function
This setting is the same as setting the Relay 1
This setting is the same as setting the Relay 1
This setting is the same as setting the Relay 1
DC Vent
Logic
Fixed
This setting is the same as setting the Relay 1
Direct
Setting the speed and mode (Co, Fa, On) of the Off
indoor fan
Auto 1
Auto 2
Off
Fan speed according to the compressor speed 1:1
Fan speed of 60-200% of the compressor speed
Output not used
10 min
-5,0°C
Setting the time constant of the module.
Setting the proportional constant of the module.
Setting the integral constant of the module.
10 to 999
0 to 999
0 to 999
30 sec.
35
0
Der.cons
Backlit
Contrast
Setting the derivative constant of the module.
Setting the LCD backlight.
Setting the LCD contrast.
0 to 999
1 to 16
1 to 16
60
8
8
Setting the time period of the operator inactivity
10 to 999
60
Setting the language version
CZ / EN
EN
Enter the password before setting the module. After logging in, you can perform 201201
settings for about 30 minutes. Without knowing the password, you can only adjust
the contrast and backlight brightness of the display.
- 22 -
p. 9
p. 11
p. 12
p. 13
p. 14
Compres.
Direct
Error
Time con
Prop.con
Int.cons
IdleTime
Language
Password
1.0 to 60.0
-20 to +5,0
p. 8
p. 15
p. 16
p. 17
p. 18
p. 6
APPENDIX
FMD-01 module to control the indoor fan speed
The FMD-01 module is designed to set the speed of the DC motor of the indoor unit fan
using the PWM (Pulse Width Modulation) output of the SCMI-01 unit. The module is built on
a printed circuit board with dimensions 50x35 mm and equipped with rubber supports and
one hole for the fixing screw. Disconnect the indoor unit from the power mains and open
the outer and inner side cover of the indoor unit. Disconnect the DC-MOTOR 1 terminal,
which connects the fan motor, from the control board of the indoor unit. Attach the module
into the hole in the plate, to which the terminal board and control board of the indoor unit are
attached, using the supplied 3,5x16mm screw. Insert the terminal with red and blue wires
into the DC-MOTOR 1 terminal on the control board and insert the fan motor terminal into the
terminal on the FMD-01 module. After powering the indoor unit, you must first open the
louvers, which direct the air flow, into the required position using the remote control.
If the indoor unit is connected to power mains, the indoor fan motor is supplied by the
DC voltage of +300V, its speed is controlled by the DC control voltage of +(2.1 ± 0.2 to 5.4 ±
0.5)V and its electronics is supplied by the DC voltage of +15V. These voltages are
connected to the DC-MOTOR 1 terminal only if the indoor unit is started using the remote
control. To avoid the need to use remote control, which has no other use for this application,
the FMD-01 module uses only the voltage of +300V, which is permanent at the DC-MOTOR
1 terminal after connecting the indoor unit to the power mains. The module converts this
voltage into the voltage of +15V and control voltage of +(1.9 to 5.9)V to control the indoor fan
speed. After opening the louvers of the indoor unit using the remote control, it is suggested to
disconnect the terminal on the control board in order to disable the remote control receiver
module and thus prevent undesirable operation of the indoor unit.
The indoor fan speed is set remotely using the PWM output of the SCMI-01 control
unit. To do this, you must connect this unit to the FMD-01 module via wiring, which connects
the corresponding VE+ and VE- terminals on the SCMI-01 unit and FMD-01 module. After
that, the indoor fan speed can be set by the SCMI-01 control unit as follows:
Fixed
Auto 1
-
Auto 2
-
Off
-
Setting the constant speed and control mode of the indoor fan
The fan speed is controlled according to the compressor speed in
the 1:1 ratio
The fan speed is controlled according to the compressor speed in
the preset ratio
The output to control the indoor fan speed is not used
A more detailed description of setting the indoor fan speed is described in the user's guide
for the SCMI-01 unit, section 4.5 on page 15.
- 23 -
9. TABLE OF CONTENTS
1.
2.
3.
4.
Introduction .................................................................................................................... 1
Safety Instructions .......................................................................................................... 2
Terminals and Wiring the Units....................................................................................... 3
Setting the Module ......................................................................................................... 4
4.1. Using the Password ................................................................................................ 6
4.2. Setting the Desired Temperature............................................................................. 7
4.3. Setting the Operation Mode of the SMCI-01 Control Module ................................... 7
4.4. Setting the Evaporator Defrosting...........................................................................11
Setting the defrosting mode of the indoor unit evaporator..............................................11
4.5. Setting the Output Relays and Fan Speed .............................................................14
Relay function ...............................................................................................................14
Relay logic.....................................................................................................................15
Setting the indoor fan control mode ...............................................................................15
Setting the Control Constants ........................................................................................16
4.6. Settings the Display................................................................................................17
5. Error Messages .............................................................................................................19
5.1. Sensors and Communication Errors of the SCMI-01 Module ..................................19
5.2. Outdoor Unit Errors ................................................................................................20
6. Technical Parameters ...................................................................................................21
7. Contents of Packaging ..................................................................................................21
8. Summary of the Module Settings...................................................................................22
Appendix ..............................................................................................................................23
FMD-01 module to control the indoor fan speed ...............................................................23
9. Table of Contents ..........................................................................................................24
- 24 -
NOTE CONCERNING PROTECTION OF
ENVIRONMENT
This product must not be disposed of via normal household waste after its service life, but must be
taken to a collection station for the recycling of electrical and electronic devices. The symbol on the
product, the operating instructions or the packaging indicate such disposal procedures. The materials
are recyclable in accordance with their respective symbols. By means of re-use, material recycling or
any other form of recycling old appliances you are making an important contribution to the protection
of our environment. Please ask your local council where your nearest disposal station is located.
PRODUCER
SINCLAIR CORPORATION Ltd.
1-4 Argyll St.
London W1F 7LD
Great Britain
www.sinclair-world.com
This product was manufactured in China (Made in China).
REPRESENTATIVE
SINCLAIR EUROPE spol. s r.o.
Purkynova 45
612 00 Brno
Czech Republic
TECHNICAL SUPPORT
NEPA spol. s r.o.
Purkynova 45
612 00 Brno
Czech Republic
Tel.: +420 800 100 285
Fax: +420 541 590 124
www.sinclair-solutions.com
info@sinclair-solutions.com
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