Omega Products CN2204 Installation Manual
Installation and Operation Handbook Contents
MODELS CN2208 and CN2204
TEMPERATURE CONTROLLERS
INSTALLATION AND OPERATION HANDBOOK
Contents Page
Chapter 1 OPERATION................................................................1-1
Chapter 2 INSTALLATION...........................................................2-1
Chapter 3 ACCESS LEVELS.......................................................3-1
Chapter 4 TUNING.......................................................................4-1
Chapter 5 CONFIGURATION.......................................................5-1
Chapter 6 USER CALIBRATION.................................................6-1
Chapter 7 ALARM CONFIGURATION.........................................7-1
Appendix A UNDERSTANDING THE ORDERING ....................... A-1
Appendix B SAFETY & EMC INFORMATION ...............................B-1
TECHNICAL SPECIFICATION ...................................B-5
Issue 1; February 1999 Applies to CN2204 and CN2208 controller software version 3.0 i
Installation and Operation Handbook Operation
Chapter 1 OPERATION
CONTENTS PAGE
Front Panel Layouts............................................................................ 1-2
Getting Started .................................................................................... 1-4
Navigation Diagram .......................................................................... 1-10
Parameter Tables .............................................................................. 1-12
Setting Alarm Levels......................................................................... 1-17
Diagnostic Alarms ............................................................................ 1-18
CN2208 and CN2204 Controller 1-1
Operation Installation and Operation Handbook
PDLINK Remote Setpoint
Button
Setpoint rate limit active
MAN
RUN
Upper readout
Button
Button
limit active
FRONT PANEL LAYOUT
CN2208
Output 1
Setpoint 2 active
Manual mode
Output 1
OP1 OP2
200.0
200.0
REM
SP2
Scroll
Button
OP2
Down
Button
Page
Button
Fig 1-1 Model CN2208 front panel layout
OP1
Up
CN2204
200.0
Output 2
Upper readout
Lower readout
Output 2
200.0
Setpoint 2
active
Manual mode
Page
Fig 1-2 Model CN2204 front panel layout
1-2 CN2208 and CN2204 Controller
SP2
Scroll
Button
REM
Down
Button
RUNMAN
Up
Lower readout
Remote Setpoint
Setpoint rate
Installation and Operation Handbook Operation
Button or
indicator
OP1 Output 1
OP2 Output 2
SP2 Setpoint 2
REM Remote Setpoint
MAN Manual light
RUN Run light
Name Explanation
Page button Press to select a new list of parameters.
Scroll button Press to select a new parameter in a list.
Down button Press to decrease a value in the lower
When lit, it indicates that output 1 is on. This
is normally the heating output.
When lit, it indicates that output 2 is on. This
is normally the cooling output.
When lit, this indicates that Setpoint 2 has
been selected.
When lit, this indicates that the PDLINK
remote Setpoint input has been selected.
‘REM’ is also used to indicate that user
comms is active.
When lit, it indicates that manual mode has
been selected
When lit, it indicates that Setpoint rate limit is
active.
readout.
Up button Press to increase a value in lower readout.
Figure 1.3 Controller buttons and indicators
CN2208 and CN2204 Controller 1-3
Operation Installation and Operation Handbook
OP1
OP2
G
H
OP1
OP2
GETTING STARTED
Thank you for selecting the OMEGA CN2208/CN2204 controller.
This section shows the principle of operation.
VIEWING THE PROCESS VALUE and SETPOINT
Install and wire up the controller in accordance with Chapter 2 and switch on.
Following a 3-second self-test sequence, this is the display you will see:
Output 1
20.0
23.0
NOTE
**
TO ADJUST THE SETPOINT
The display may flash an alarm message. Refer to the Parameter Tables later
in this chapter for a complete list and meaning of the messages.
Fig. 1.4 The “Home Display”
Output 2
Actual Temperature (Process Value)
Required Temperature (Setpoint)
20.0
140.0
Press and hold to
decrease temperature
Fig 1.5 The lower readout shows the setpoint
After 2 secs the lower readout will ‘blink’ indicating that the new value has been
accepted. For everyday use you may not need to do anymore than this.
1-4 CN2208 and CN2204 Controller
Press and hold to
increase temperature
Installation and Operation Handbook Operation
No units - Linear Inputs
VIEWING THE DISPLAY UNITS
0.5 sec.
23.0 23.0
23.0
o
C
Display Units
oo
CC Degrees Centigrade
oo
FF Degrees Fahrenheit
oo
KK Degrees Kelvin
140.0140.0
Momentarily
press either
G
NOTE
**
G
If you get lost, pressing and together will return you to the Home
display
Fig. 1.6 Pressing or will flash the display units for 0.05 sec.
button
USE OF THE “SCROLL” BUTTON
Pressing the scroll button will display the output power level. Continued
pressing will display further parameters in what is referred to as the operator
scroll list.
2nd press
OPOP
100.0100.0
Output
Actual output level %
CN2208 and CN2204 Controller 1-5
3rd press
m-A m-A
AutoAuto
Keep pressing to return to
Home display or select further
parameters (if available)
Fig. 1.7 Upper readout is parameter name. Lower is value
Manual/Auto
Actual state
Operation Installation and Operation Handbook
USE OF THE PAGE BUTTON
The “PAGE” button accesses parameter LISTS
Parameters are settings in the instrument which, generally, can be changed by the user to
suit the process. Examples are: Alarms, Self-Tune, etc. They are found under headings
called LISTS and a full set is given later in this chapter.
0.5 sec.
23.0 23.0
o o
23.0 23.0
140.0140.0
CC
1st press
NOTE
**
23.0 23.0
14.0.014.0.0
2nd press
Fig 1.8 Press to choose a parameter list
The actual list headings may be longer or shorter than indicated above and
you can customize this for the operator’s convenience in EDIT level,
Chapter 3.
ALAL
LiStLiSt
3rd press
Keep pressing to
select more list headings and
continue around a continuous loop
atunatun
LiStLiSt
1-6 CN2208 and CN2204 Controller
Installation and Operation Handbook Operation
G
button
PARAMETER LISTS
Press to choose a LIST - “ALARMS” is a good one. This list allows you to set the
alarm trip levels. The parameters, which appear in the list, will vary according to the
configuration of your controller.
0.5 sec.
23.023.0
o o
23.0
CC
140.0
1st press
Fig. 1.9a Choose a list
There are 4 alarms in the
controller. The first
character is the alarm
number. The following
three letters indicate the
alarm type as follows:
-FSL-FSL Full Scale Low
-FSH-FSH Full Scale High
-dHi-dHi Deviation High
-dLo-dLo Deviation Low
-dEv-dEv Deviation Band
Disabled alarms will not
be displayed.
Chapter 7 gives a full
description of alarms.
Fig. 1.9b Press to select a parameter
Alarm
2nd press
List
ALAL
LiStLiSt
Now press
the SCROLL
1---1---
50.050.0
2---2---
200.0200.0
Keep pressing
1. to scroll through further parameters
2. to return to list header
Alarm 1
or to
change trip level
2nd press
Alarm 2
or to
change trip level
NOTE
If, at any time, no key is pressed within 45 seconds, the display will always
return to the “HOME” display.
**
CN2208 and CN2204 Controller 1-7
Operation Installation and Operation Handbook
OPERATING MODES
The controller can be used in two modes:
Automatic mode - in which the output power is automatically adjusted to hold the
temperature at the required value. The controller normally operates in this mode.
Manual mode - in which the output is manually adjusted by the Operator. In this mode
the ‘MAN’ light will be on.
One other mode is available:
Remote setpoint - The setpoint is generated as an input signal from a master 2000 series
controller. In this mode the REM light is on.
AUTO or MANUAL SELECT
0.5 sec.
23.023.0
o o
23.0 23.0
CC
140.0140.0
1st press
2nd press
OP OP
100.0100.0
m-A m-A
Output
Actual output level %
3rd press
Manual/Auto
or to select
mAnmAn
AutoAuto automatic mode
ManMan manual mode
Keep pressing
to return to “HOME”
display
Fig. 1.10 Auto/manual select
1-8 CN2208 and CN2204 Controller
Installation and Operation Handbook Operation
OP1
OP2
MAN
G
H
**
MANUAL ADJUSTMENT OF OUTPUT POWER
23.0 23.0
50.050.0
Press and hold to
decrease power
Fig. 1.11 The “Home Display” in manual mode
NOTE
SUMMARY
To step through list headers, press the Page button until the required header is
obtained
To step through parameters within a particular list, press the Scroll button until the
required parameter is obtained
To change the value (or state) of a parameter, press the Raise button or the Lower
button
Manual mode is generally used for test and commissioning purposes, take
care not to leave the controller in this mode since damage or personal
injury could occur.
Actual Temperature (Process Value)
Output Power Demand
Manual Indicator on
Press and hold to
increase power
The remainder of this chapter provides a complete list of all parameters available.
CN2208 and CN2204 Controller 1-9
Operation Installation and Operation Handbook
(1)
List
List
List
2
2
2
2
NAVIGATION DIAGRAM (Part A)
Alarm
AL AL
LiStLiSt
1---
100.0
2---
20.00
3---
Autotune
AtunAtun
LiStLiSt
TunE
OFF
Adc
mAn
0
Home
List
20.020.0
20.020.0
OP
100.0
AmPS
5
m-A
Auto
4---
0
Lbt
OFF
The navigation diagram shows a full
list of possible parameters.
However, some may not appear
because they are dependent upon
the particular controller variant.
PID
PidPid
LiStLiSt
Pb
50
Ti
300
td
50.0
RES
0.0
Lcb
Auto
Hcb
Auto
REL.C
1.00
Setpoint
List
SPSP
LiStLiSt
SSEL
SP 1
L-r
Loc
SP 1
20.0
SP 2
0.0
Rm.SP
0.0
Loc.t
0.0
SP1.L
3
Notes:
1. Either the PID list or the On/Off list will be
present depending upon the type of control in
use.
2. The last three characters depend upon the type
of alarm configured
3. Absolute setpoint limits are set in configuration,
see Chapter 5.
The shaded boxes are normally hidden in
Operator level. To see all the available
parameters you must select Full level. See
Chapter 3, Access Levels.
Figure 1.12a Navigation diagram
1-10 CN2208 and CN2204 Controller
SP1.H
SP2.L
SP2.H
Loc.L
100.0
Loc.H
0.0
SPrr
OFF
3
3
3
Installation and Operation Handbook Operation
List
Display
NAVIGATION DIAGRAM (PART B)
Input
iP
LiSt
FiLt
CAL
FACT
CAL.L
Adj.L
CAL.H
Adj.H
CJC
21.0
1.0
no
no
Output
List
oP
LiSt
OP.Lo
100.0
OP.Hi
0.0
Sb.OP
100.0
4
CYC.H
20.0
On Off
(1)
List
OnOF
LiSt
hYS.H
1.0
hYS.C
1.0
HC.db
0.0
Comms
List
CmS
LiSt
Addr
Access
List
ACCS
LiSt
coDE
1
PASS
Goto
OPEr
ConF
Return to
“HOME”
0
CYC.C
5.0
4
Ont.H
1.0
Ont.C
1.0
MV
1.17
Note:
4. Beware! Used for calibration. See Chapter 6.
The shaded boxes are normally hidden in
Operator level. To see all the available
parameters you must select Full level. See
Chapter 3, Access Levels.
Figure 1.12b Navigation diagram
CN2208 and CN2204 Controller 1-11
Operation Installation and Operation Handbook
PARAMETER TABLES
Name Parameter Description Default Value Minimum Maximum Units
UK USA Value Value
Home List
Home Measured Value and Setpoint (SP)
OP
AmPS
m-A
Additional parameters may appear in the Home display if the ‘promote’ feature has been used (see Edit Level, Chapter 3).
ALAL
1--2--3--4---
In place of dashes, the last three characters indicate the alarm type, as follows:
-FSH
-FSL
-DEv
-dHi
-dLo
Lbt
% Output Level
Heater current (PDLINK mode 2) Amps
Auto/manual select
Alarm List
Alarm 1 setpoint value
Alarm 2 setpoint value
Alarm 3 setpoint value
Alarm 4 setpoint value
Full Scale High alarm 800
Full Scale Low alarm 32
Deviation band alarm 31
Deviation High alarm 31
Deviation Low alarm 31
Loop break time
SP=25 SP=78
0.00 100.00
Auto Auto
0 Per Alarm See Below 0 9999
0 Per Alarm See Below 0 9999
0 Per Alarm See Below 0 9999
0 Per Alarm See Below 0 9999
OFF OFF 0 9999
as display
%
as display
as display
as display
as display
secs
Customer
Setting
1-12 CN2208 and CN2204 Controller
Installation and Operation Handbook Operation
Name Parameter Description Default Value Minimum Maximum Units
UK USA Value Value
AtunAtun
tunE
Adc
PidPid
Pb
ti
td
rES
Lcb
Hcb
rEL.C
Autotune List
Self tune enable
Automatic droop compensation (Manual
Reset) enable (only present if ti set to OFF
PID List
Proportional band
Integral time
Derivative time
Manual reset (appears when ti set to OFF)
Cutback low
Cutback high
Relative cool gain (set 1)
OFF OFF OFF ON
MAN MAN MAN CALC
20.0 46 0.0 9999
360 360 OFF 9999
60 60 OFF 9999
0.0 0.0 0.00 100.0
Auto Auto 0 9999
Auto Auto 0 9999
1.00 1.00 0.01 9.99
as display
seconds
seconds
%
as display
as display
Customer Setting
CN2208 and CN2204 Controller 1-13
Operation Installation and Operation Handbook
Name Parameter Description Default Value Minimum Maximum Units
UK USA Value Value
SPSP
SSEL
L-r
SP1
SP2
rm.SP
Loc.t
SP1.L
SP1.H
SP2.L
SP2.H
Loc.L
Loc.H
SPrr
Set Point List
Select SP1 or SP2
Local or remote setpoint select *
Setpoint 1 value
Setpoint 2 value
Remote setpoint
Local trim
Setpoint 1 low limit
Setpoint 1 high limit
Setpoint 2 low limit
Setpoint 2 high limit
Local setpoint trim low limit
Local setpoint trim high limit
Setpoint rate limit
SP1 SP1 SP1 SP2
Loc Loc Loc rmt
25
25
0
0
0
1000
0
1000
-210
1200
OFF
78 As display range
78 As display range
32 As display range
0 As display range
32 As display range
800 As display range
32 As display range
800 As display range
-340 As display range
2192 As display range
OFF As display range
Customer Setting
* Only appears if PDLINK fitted and configured in the HA comms slot.
1-14 CN2208 and CN2204 Controller
Installation and Operation Handbook Operation
Name Parameter Description Default Value Minimum Maximum Units Customer Settings
UK USA Value Value
iPiP
FiLt
Input list
Input filter time constant
1.6 1.6 1.0 999.9
secs
The next 5 parameters will appear if User calibration has been enabled in configuration level. To perform a user calibration, refer to Ch 6.
CAL
FACt will re-instate factory settings and disable User Calibration. Default setting FACt
USEr will re-instate any previously set User Calibration offsets and make available User Calibration parameters as follows:
CAL.L User low point calibration if YES allows access to next parameter. if no the next parameter is hidden
AdJ.L
*
Adjust low point to calibrated ref. source
CAL.H User high point calibration if YES allows access to the next parameter if no the next parameter is hidden
AdJ.H
*
Adjust high point to calibrated ref. source
The following two parameters are always present in Full Access level but not in Operator level
o
CJC
mV
*
Do not make adjustments to the AdJ.L or AdJ.H parameters unless you wish to offset the controller calibration
Cold Junction compensation temperature
Millivolt input
oPoP Output list Note; If On/Off control is configured only Sb.OP, ont.H and ont.C will appear in the following list
OP.Lo
OP.Hi
Sb.OP
CYC.H
CYC.C
ont.H
ont.C
Low (power) output limit
High (power) output limit
Output setting when in sensor break
Heat cycle time
Cool cycle time
Heat output min. on time
Cool output min. on time
0.0 or -100.0 (cool) -100.0 100.0
100.0 100.0 -100.0 100.0
0.0 or -100.0 (cool) -100.0 100.0
1.0 (dc pulse) 20 (relay) 0.2 999.9
1.0 (dc pulse) 20 (relay) 0.2 999.9
0.1 0.1 Auto (50mS) 1.0
0.1 0.5 Auto (50mS) 1.0
%
%
%
secs
secs
mins
mins
CN2208 and CN2204 Controller 1-15
Operation Installation and Operation Handbook
Name Parameter Description Default Value Minimum Maximum Units Customer Settings
UK USA Value Value
OnOfOnOf
This set of parameters only appear if On/Off control has been configured
hYS.H
hYS.C
HC.db
cmScmS
Addr
ACCSACCS
codE
Goto Goto level -OPEr,FuLL,Edit,or
ConF
On/off list
Heat hysteresis
Cool hysteresis
Heat/Cool dead band
Comms list
Communications address
Access list
Full and Edit level password
conF
Configuration level password
0 0 0 9999
0 0 0 9999
1 1 0 9999
1 1 1 254
1 1 0 9999
OPEr OPEr OPEr conF
2 2 0 9999
as display
as display
as display
1-16 CN2208 and CN2204 Controller
Installation and Operation Handbook Operation
SETTING ALARM LEVELS
Up to 4 Alarms may be configured. Each alarm is given a name to describe its function see table below. If an alarm is not used it does not appear in the list below.
In place of dashes,
letters indicate alarm
type as follows:
-FSL Full S
-FSH Full Scale High
-dHi Deviation High
-dLo Deviation Low
-dEv Deviation Band
cale Low
ALAL
LiStLiSt
1--1-100100
2---2---
200200
3---3---
4---4---
00
00
Alarm List
Alarm 1
or to change
2nd press
Alarm 2
or to change
3rd press
Alarm 3
or to change
4th press
Alarm 4
or to change
5th press
Lb tLb t
OFFOFF
Press to return
to list header
CN2208 and CN2204 Controller 1-17
Loop break time
or to change
Operation Installation and Operation Handbook
Diagnostic alarms
These indicate that a fault exists in either the controller or the connected devices.
Table 1.1a Diagnostic alarms
Display
shows
EE.Er
S.br
L.br
Ld.F
SSr.F
What it means What to do about it
Electrically Erasable
Memory Error:
The value of an operator
or configuration
parameter has been
corrupted.
Sensor Break:
Input sensor is unreliable
or the input signal is out
of range.
Loop Break:
The feedback loop is
open circuit.
Load failure
Indication that there is a
fault in the heating circuit
or the solid state relay.
Solid state relay failure
Indication that there is a
fault in the solid state
relay
This fault will automatically take you into
configuration level. Check all of the
configuration parameters before returning to
operator level. Once in operator level, check
all of the operator parameters before
resuming normal operation. If the fault
persists or occurs frequently, contact Omega
Engineering, Inc.
Check that the sensor is correctly connected.
Check that the heating and cooling circuits
are working properly.
This is an alarm generated by feedback from
a Omega SSC-TE10S solid state relay (SSR)
operating in PDLINK mode 1-see Electrical
installation Chapter 2. It indicates either an
open or short circuit SSR, blown fuse, missing
supply or open circuit heater.
This is an alarm generated by feedback from
a Omega SSC-TE10S solid state relay (SSR)
operating in PDLINK mode 2 -see Electrical
installation Chapter 2. It indicates either an
open or short circuit condition in the SSR.
Htr.F
HW.Er
1-18 CN2208 and CN2204 Controller
Heater failure
Indication that there is a
fault in heating circuit
Hardware error
Indication that a module
is of the wrong type,
missing or faulty
This is an alarm generated by feedback from
a Omega SSC-TE10S solid state relay (SSR)
operating in PDLINK mode 2 -see Electrical
installation Chapter 2. It indicates either a
blown fuse, missing supply or open circuit
heater.
Check that the correct modules are fitted.
Installation and Operation Handbook Operation
Diagnostic alarms continued
These indicate that a fault exists in either the controller or the connected devices.
Table 1.1b Diagnostic alarms
Display
shows
rmt.F
LLLL
HHHH
Err1
Err2
Err3
Err4
Err5
Pwr.F
What it means What to do about it
Remote input failure. The
PDLINK input is open
circuit
Out of Display range, low
reading
Out of Display range, high
reading
Error 1: ROM self-test fail
Error 2: RAM self-test fail
Error 3: Watchdog fail
Error 4: Keyboard failure
Stuck buttons, or a button
was pressed during power
up.
Error 5: Input circuit failure
Power failure. The line
voltage is too low
Check for open or short circuit wiring on the
PDLINK input
Check the value of the display range
Check the value of the display range
Return the controller for repair
Return the controller for repair
Return the controller for repair
Switch the power off and then on without
touching any of the controller buttons.
Return the controller for repair
Check that the supply to the controller is
within the rated limits
CN2208 and CN2204 Controller 1-19
Installation and Operation Handbook Installation
8
3
7
8
4
Chapter 2 INSTALLATION
8
6
2
1
2
Figure 2-1 CN2208 1/8 DIN controller
5
KEY
1. Display screen
2. Latching ears
3. Panel sealing gasket
4. Panel retaining clips
5. Label
6. Sleeve
7. Terminal covers
8. Ratchets
7
8
4
2
6
1
5
2
4
3
Figure 2-2 CN2404 ¼ DIN controller
CN2208 and CN2204 Controller 2-1
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