ONTROL E3122 User manual

E3122
Universal Controller
Owner’s Manual

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INTRODUCTION
E3122 is an advanced digital controller designed for heating, ventilating, air-conditioning (HVAC)
systems. It can control two different process variables with PI control, cascade, compensation, low and
high limit functions. Thus, it can control two different physical parameters on a single HVAC system
(e.g. temperature and humidity control on a single air handling unit). Or, it can control two different
HVAC systems (e.g. temperature control on two air handling units).
The E3122 must be configured for the particular application that it will be used in. This is easily
achieved using the integral keypad&display or a personel computer. Depending on the installation,
either one or both process controls can be configured. For detailed information on configuration
options, see the “E3122 Engineering Manual”.
BASIC OPERATION
Operating the E3122 is straightforward, efficient and user-friendly. Self-explanatory menu headings
will guide you through the basic functions.
Display
The E3122 can display two lines of alphanumeric text with 16 characters per line.
When the keypad is being used, the display will automatically illuminate for better visibility. If no key is
pressed for a while, the backlight will turn off.
Keypad
In addition to numerical keys, the keypad includes four navigation keys (right, left, up, down) and two
command keys : Key Function
0 ...... 9 Numerical keys. Use to select menus and change
settings.
ÕMoves the cursor one character to the left.
ÖMoves the cursor one character to the right.
×Moves the cursor or screen up by one line
ØMoves the cursor or screen down by one line
9ACCEPT command key.
8BACK command key. Displays the previous menu.
Cursor
Whenever a value that you can change is displayed, one of the digits on the screen will be flashing.
This is the cursor.
By pressing any numerical key, you can change the flashing digit. Or, you can press one of the four
navigation keys (left, right, up,down) to move the cursor to the digit you want to change.

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Top Screen
Normally the display will alternately show the measured values of the two main sensors (the sensor
that you adjust the setpoint for).
Temperature ÎHumidity ÎOntrol E 3122
I1 = 16.2 ºC I4 = 62.0 %Rh
This is the top screen. The controller will automatically return to this basic display automatically if no
key is pressed for some time. You can always go back to this top screen by pressing the 8key
repetitively.
Main Menu
E3122 will guide you to the function that you require by displaying a number of choices and waiting for
you to select one. The choices are organized in “menus” for logical and easy access.
Pressing the 9key will take you from the top screen to the main menu:
The main menu consists of five items but
only two lines will be visible at a time.
You can scroll through the other items
using the ×and Økeys.
Press a numeric key to select the corresponding menu item. A submenu will be displayed and you can
continue similarly until you find the function or setting that you require.
1.Edit Setpoints
2.View I/O
3.View Process
4.Fix/Unfix I/O
5.Configuration

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Menu Structure
The basic menu structure is shown below for reference. Each branch is explained in detail in the
following pages. The “Configuration” menu (item 5) is explained in the “E3122 Engineering Manual”.
1.Edit Setpoints
2.View I/O
3.View Process
4.Fix/Unfix I/O
5.Configuration
Temperature
Spt: 20.0°C
Main I1= 20.2
Setp = --.-
Casc I2= 16.4!
Comp. = --.-
Output1= 12%
Output4=CLOSED
I5= 16.5°C !
I3= FREEZE
1.Temperature
2.Humidity
1.Inputs
2.Outputs
3.Calc.Values
CalcSpt= 21.0
Sec Spt= 16.8
Control Sig= 32%
I5= 20.0°C !
Unfix? Yes
See “E3122
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Engineering Manual “
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1.Temperature
2.Humidity
Ontrol E3122
Main1= 21.2°C
9
1
1
2
3
4
5
2
3

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EDIT SETPOINTS
This menu allows changes to two user setpoint values.
Penetration Path
You reach the setpoints menu following the below path from the top screen.
When you press the ckey in the main menu, the process selection submenu will be displayed only if
there are two process variables being controlled. If only one process is configured, this submenu will
be skipped and the appropriate setpoint will be displayed automatically.
The process selection submenu displays the descriptive names of two process variables. Select the
desired setpoint by pressing cor d. The descriptors shown in the above diagram are examples only,
they will be different depending on the application. These names are defined by the installer in the
configuration menu.
Adjusting
When a setpoint that you can change is displayed, the cursor will be visible.
To change the setpoint,
•move the cursor over any digit using the Õor Ökeys,
•type a new value,
•press 9to enter the changes into memory.
You can also move the cursor to the plus or minus sign and press any digit key to change the sign of
the number.
If you make a change and then change your mind, you can press 8key to undo your changes.
When you are finished, press the 8key to exit this menu.
Important
If a remote setpoint adjustment is provided on your system, the remotely adjusted value will be added
to this setpoint. For example, if you have a wall type adjustment that allows you to set the room
temperature setpoint between 0..30°C, the setpoint on the E3122 must be entered as 0°C.
1.Edit Setpoints
2.View I/O
3.View Process
4.Fix/Unfix I/O
5.Configuration
Temperature
Spt: 20.0°C
1.Temperature
2.Humidity
Ontrol E3122
Main1= 21.2°C
9
1
Humidity
Spt: 50.0%Rh
1
2
Process selection
submenu (Example)
Main Menu
Top Screen

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VIEW INPUTS & OUTPUTS
This menu allows you to read the current status of any connected input or output point. Since values
are referenced by input or output number, you need to have a list of connected inputs and outputs by
point number. Typically, this list is written down, by the installer in Appendix A of this manual.
Penetration Path
You reach the “View I/O” menu following the below path from the top screen.
Use
This display allows viewing of two connected points simultaneously. You can select the desired point
in the following way:
•Position the cursor over the first letter of any line and press any digit key to toggle between “I”
(input point) and “O” (output point.)
•Move the cursor to the point number, and type in the desired point number.
After each change, the value of the selected points will be displayed instantaneously. This display is
continuously updated. The values on display will be refreshed automatically as the inputs or outputs
change.
Values of analog input and output points are displayed with appropriate engineering unit. Condition of
digital input and output points are displayed with descriptive state names.
An exclamation mark (“!”) indicates that the value is fixed, i.e. it is not updated automatically and
remains at the displayed value. To fix or unfix a point, see page 8.
The controller will remember the points that you last selected and will display them when you re-enter
this menu.
1.Edit Setpoints
2.View I/O
3.View Process
4.Fix/Unfix I/O
5.Configuration
I5= 16.5°C !
O3= START
Ontrol E3122
Main1= 21.2°C
9
2

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VIEW PROCESS
This menu allows you to view values related to each process. The available values include calculated
values as well as inputs and outputs assigned to each process.
Penetration Path
You reach the “View Process” menu following the below path from the top screen.
Process selection
When you press the ekey in the main menu, the process selection submenu will be displayed only if
there are two process variables being controlled. If only one process is configured, this submenu will
be skipped and the next submenu will be displayed automatically.
The process selection submenu displays the descriptive names of each process. Select the desired
setpoint by pressing cor d. The descriptors shown in the above diagram are examples only, they will
be different depending on the application.
Value Type Selection
Values related to each process are organized under three headings. Select one of the three headings
to view the values.
These displays are continuously updated. The values on display will be refreshed automatically as the
inputs or outputs change.
1.Edit Setpoints
2.View I/O
3.View Process
4.Fix/Unfix I/O
5.Configuration
Main I1= 20.2
Setp = --.-
Casc I2= 16.4!
Comp. = --.-
Output1= 12%
Output4=CLOSED
1.Temperature
2.Humidity
-Temperature-
1.Inputs
2.Outputs
3.Calc.Values
CalcSpt= 21.0
Sec Spt= 16.8
Control= 32%
Ontrol E3122
Main1= 21.2°C
9
1
3
2
3
Value type
selection
b
Process
selection
b
Main Menu
1

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Inputs
Allows you to view actual measured values for inputs related to the selected process.
Main : Displays the main sensor value. The controller is trying to maintain this value at the setpoint
that you adjust.
SetPnt : Displays the value of the remote setpoint adjustment. This line is visible only if a remote
setpoint adjustment is being utilized.
Compens : Displays the compensation sensor value. This line is visible only if summer or winter
compensation function is enabled.
Limit : Displays the limit sensor value. This line is visible only if high or low limit function is enabled.
Cascade : Displays the cascade sensor value. This line is visible only if cascade function is enabled.
An exclamation mark (“!”) indicates that the value is fixed, i.e. it is not updated automatically and
remains at the displayed value. To fix or unfix a point, see page 8.
Outputs
Displays actual status of outputs assigned to the selected control process.
Analog outputs are displayed with value and engineering unit (%). Condition of digital outputs are
displayed with descriptive state names.
Since ouputs are listed by number, you need to have a list of connected outputs by point number.
Typically, this list is written down, by the installer, in Appendix A of this manual.
An exclamation mark (“!”) indicates that the value is fixed, i.e. it is not updated automatically and
remains at the displayed value. To fix or unfix a point, see page 8.
Calculated Values
This menu displays the results of some internally calculated values that are used for automatic control.
Calc.Spt : The internally calculated setpoint value. This could be different from the user setpoint for
two reasons:
(i) When a remote setpoint adjustment is used, the value from the remote setpoint adjustment input is
added to the internal setpoint. For example, the internal (base) setpoint can be set at 20°C and a
wall type adjustment unit can provide +/- 3 degrees adjustment option.
(ii) If the compensation function is enabled, the setpoint will be shifted depending on the value of the
compensation sensor.
This line displays the resulting calculated setpoint for the main sensor.
Sec Spt : This line will be visible only if the cascade function is enabled. The cascade function
calculates a setpoint for the secondary (cascade) sensor based on the value of the main sensor. This
line displays the calculated setpoint for the secondary sensor.
Control : One internal control signal is calculated for each control process. The calculated control
signal is always between 0..100%.

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FIX / UNFIX INPUTS AND OUTPUTS
This menu allows you to “fix” or “unfix” any input or output point. The value of a fixed point does not
change, it remains at the fixed value.
Since points are referenced by input or output number, you need to have a list of connected inputs
and outputs by point number. Typically, this list is written down, by the installer in Appendix A of this
manual.
An exclamation mark is used on many displays (“!”) to indicate that a value is fixed.
Penetration Path
You reach the “Fix/Unfix I/O” menu following the below path from the top screen.
Use
The first line displays the current value of a selected input or output point. You can select the desired
point in the following way:
•Position the cursor over the first letter and press any digit key to toggle between “I” (input point)
and “O” (output point).
•Move the cursor to the point number, and type in the desired point number.
After each change, the value of the selected point will be displayed instantaneously. Values of analog
input and output points are displayed with appropriate engineering unit. Condition of digital input and
output points are displayed with descriptive state names.
An exclamation mark (“!”) indicates that the value is fixed.
To fix or unfix a point, press Ø. The second line will become visible.
•If the selected point is already fixed, the second line will display “Unfix? No”. Press any digit key to
toggle between Yes and No.
•If the selected point is not fixed, the second line will display “Fix To?:”. Type in the value that you
want to fix this point to.
•Press 9to enter the changes into memory.
•Press 8key to exit without making any changes.
SYSTEM CONFIGURATION
This menu is provided for the installer to configure the system. It is password protected. Refer to
“E3122 Engineering Manual” for detailed information.
1.Edit Setpoints
2.View I/O
3.View Process
4.Fix/Unfix I/O
5.Configuration
I5= 20.0°C !
Unfix? Yes
Ontrol E3122
Main1= 21.2°C
9
4