CN1514/1517 KEYS AND FUNCTION .................................................................................................................................. 5
Process Mode...........................................................................................................................................................................6
Proportional band ................................................................................................................................................................8
How to Enter a Typical Process Profile............................................................................................................................... 9
Programming ‘Voltage or Current’ Input:.............................................................................................................................11
Controller Type (On/Off or PID):......................................................................................................................................11
Decimal Point Position ...................................................................................................................................................... 12
High Scale .........................................................................................................................................................................12
Engineering Units .............................................................................................................................................................. 14
Controller type (On/Off or PID):.......................................................................................................................................15
‘Input SIGNAL’ Type .......................................................................................................................................................15
Temperature Units .............................................................................................................................................................16
Engineering Units .............................................................................................................................................................. 16
Input Range ( Current and Voltage) .....................................................................................................................................18
Voltage Range (0-5vdc, 0-10vdc).....................................................................................................................................18
Voltage Range ( Millivolt inputs).....................................................................................................................................18
Current Range.................................................................................................................................................................... 19
Correct Range Settings ...................................................................................................................................................... 19
Run Mode ..............................................................................................................................................................................22
Hold Mode............................................................................................................................................................................. 23
Data Description.................................................................................................................................................................... 26
External Control Relay Installation ...........................................................................................................................................26
Figure 1. Solid State relay hookup to a controller output..................................................................................................... 26
ERROR MESSAGES AND SOLUTIONS ...............................................................................................................................26
POWER ..................................................................................................................................................................................... 27
FIGURE 2. TERMINAL COMPARTMENT OF CN1514/1517 INSTRUMENT................................................................ 27
Typical @ 25 C and rated supply voltage unless otherwise specified.
INPUT TYPE:
i) J,K,T,E,R,S,B, thermistor, RTD
ii) 4-20 milliamp & 0-50 milliamp loop current
iii) 0-10 vdc & 0-5 vdc
iv) 0-100 millivolt
Cold junction error: +/- 0.5 C (10C to 45C)
Open thermocouple indication: ‘HELP’ displayed
ACCURACY:
Temperature resolution: 1C/1F, 0.1% of Full Scale
Voltage = 0.05% FS
Current = 0.05% FS
ANALOG TO DIGITAL CONVERSION
20,000 count A/D converter
Dual slope integrating converter.
Conversion rate: Seven conversions/sec (typical)
DISPLAY
Red 7-segment LED display, 0.8 inch (20mm) height
Negative polarity indication
Over-range indication: HELP
Display test: Briefly indicates 8.8.8.8.8.8.8. on power up
SCAN RATE
Two channels per second
Channel display time: programmable from 1 - 999 seconds
PROPORTIONAL BAND: RESET:
0 - 100% of span 0.00 TO 50.00 repeats per minute
3
CN1514 is a four channel unit. Therefore, any reference to channel numbers with respect to this
model is for channels 1 through 4 only
CN1517 is a seven channel unit, and therefore, any reference to channel numbers for this model
is for channels 1 through 7.
.
NOTE
DESCRIPTION
The CN1514/1517 series is a compact unit that offers the features of up to seven full-blown PID controllers in a
single wall-mount enclosure. Careful design, high functionality and its compactness allows it to offer unmatched
cost/performance ratio of any controller in its class.
CN1514/1517 series offers PID control for optimum process stability. Additionally, processes that do not require
tight control through complex tuning of PID parameters can be run under simple ON/OFF control.
Programmable from the front keys, the unit will accept signals from many different types of transducers. These
include thermocouples, thermistors, RTDs, 4-20ma loop current, 0-50ma loop current, 0-5vdc, 0-10vdc and 0100mv etc. (Check Model number for specific input types). Input signal for each zone is selected independently.
Scaling and offset allows current and voltage signals to be converted to engineering units. Additionally, each zone
has its own ramp/soak profile which can be tailored to its specific requirements. ON/OFF as well as PID
parameters (Rate, Reset and Proportional band) for each zone are also independent of each other.
Each zone can be programmed for either heating or cooling. Setpoint deviation, positive as well as negative, can
be viewed by the push of a key.
The maximum and minimum readings for each zone are also captured. This feature can be helpful in quality
control or as a tool in fine-tuning the PID parameters.
Any zone can be put on an indefinite hold anywhere along the process profile. Also, a manual mode for setpoint
entry is available. Using this feature, a setpoint can be entered without going into the program mode and entering
the entire ramp/soak profile for a given zone.
4
CN1514/1517 KEYS AND FUNCTION
The five CN1514/1517 keys have several functions packed into each key. These Functions are listed below.
* Pushing this key, while scanning, will place the display in a hold mode. The
SCN/HLD
Display will hold on the current display function until the key is pushed again.
* If the unit is in a display hold mode, push this key to continue scanning
RST/EXT
between controllers.
* This key is also used to exit Programming Mode, indicated by the word ‘SAVInG'
displayed.
NOTE:
controlling. The HLD led comes on when the unit is placed in a hold mode.
* To select a controller, toggle this key until the unit displays the desired controller number.
* To enter programming mode, push and hold this key, on the desired controller to be programmed, until the unit scrolls the message 'EntEr PASSCOdE'.
* Toggling this key will sequentially display process value for each controller.
PROCESS
* This key's function is similar to the above (Process/Data) key except that it displays
setpoint instead of process for each controller.
* In Programming Mode this key is used to select a digit to be increment or decremented.
DIG
* This key functions only after a controller has been selected by pushing CTR. SEL
RUN/STP
key. It is used for displaying and changing the current status of selected
* In Programming Mode this key is used to increment or decrement a selected digit or to toggle between selections.
HOLD mode places only the display on hold. Internally, all the enabled channels keep on scanning and
CTR.SEL
PROG
* If a controller is selected (by pushing CTR SEL key) before pushing this key , it will cause
DATA
SETPT
DIG
controller (RUNNING, HOLDING. STOPPED & ENTER SP).
the unit to display the following data for that controller: process value, soak time, deviation,
Min/Max readings and rate of process change.
being
5
The LEDS on the front indicate the controller status. They are turned on when each controller is in auto run
(automatic ramping) or in manual setpoint entry mode. The HOLD led indicates that the display is being held on
any one parameter (e.g. controller number 1's process value).
DISPLAY MODES
The CN1514/1517 can be programmed to display in one of the following modes:
DisplayDescription
Mode
PROCESS PrOCESS
SETPOINT SEtPt
controller.
(Only those controllers that are in run/hold mode)
Display only the process value for the controllers.
Displays only the setpoint value for each
PROCESS - SETPOINT P
each controller that is running a program.
SEE PROGRAMMING ON HOW TO SELECT ONE OF THE DISPLAY MODES.
r-StPt Displays Process as well as Setpoint Values for
PROCESS MODE
Process Display Mode sequentially displays the process value of each controller. Process value is displayed,
regardless of whether the controller is running or not. All the controllers that are enabled will be displayed. The
display time is as setup during programming.
SETPOINT MODE
This mode displays ONLY
the unit will scroll the message 'nO CntrL rUnnInG' on the display. Setpoints are displayed for the
programmed amount of display time.
the setpoint value for those controllers that are running. If NO controller is running,
PROCESS-SETPOINT MODE
This mode displays Process as well as Setpoint value for each controller that is in run/hold mode. If no controller
is running a profile, the unit will display only the process reading of the controllers that are enabled. If any
controllers are being run, then their process value is displayed followed by their setpoint. The display period is as
programmed during setup, for example, if display time is 10 seconds, the process will be displayed for ten
seconds, followed by setpoint for ten seconds.
PROGRAMMING MODES
Programming mode is used for configuring various parameters of the
unit. This is accomplished by first selecting the controller that needs to
be programmed (by pushing the CTR SEL key), and then holding in the
CTR.SEL (which is also the PROG key) until the units scrolls the
message 'EntEr PASSCOdE'. At this point, pass code for the system
can be entered. The entry code is a four digit number which keeps
unauthorized personnel from changing the system parameters. The front
panel keys are each marked with a small digit in the lower right corner.
6
For the five keys there are five digits --- 1,2,3,4,5. The pass-code is a combination of these digits and for
CN1514/1517 systems it is 3254
If, at any time during programming, it is desired to exit, just push the
RST/EXT key twice (and hold it in till the display reads ‘SAVInG’).
First push takes you to the very beginning of the program mode (display
shows 'PrG CTr '), and the second push will exit. Display briefly reads
'SAVING' to indicate that the data is being saved in nonvolatile
memory.
As soon as the correct four digit pass-code is entered, the system is ready
for programming. Once in programming mode, one of the following
selections can be made:
Display
tuninG Enter PID parameters or hysteresis for ON/OFF control
VErIFY
PrOFILE Program a Ramp/Soak profile for a controller.
PrG CTr
PrG SYS Program System parameters
Description
Verify a previously entered Ramp/Soak profile .
Program Controller parameters.
.
TUNING MODE:
Tuning mode is used for entering relay hysteresis (if controller is
programmed for ON/OFF mode) or Rate, Reset and Proportional Band (if
the unit is set as a PID controller). This mode is selected in SETUP mode
by pushing PROG key while the unit is displaying 'tUnIng'. After this
selection, the unit will display any one of the following: 'Cntr 1', 'Cntr 2', 'Cntr 3', 'Cntr 4', 'Cntr 5', 'Cntr 6', or 'Cntr 7'. At this time any
controller can be selected by pushing DIG key. LED for selected
controller will flash (this provides an easy way to track the controller
being programmed). After selecting a controller, use PROG key to step
through programming. To exit, push EXT key.
NOTE: ‘TUNING’ mode can also be entered by pushing and holding
‘DATA’ key till the display reads ‘TuninG’. Once in this mode, any controller can be selected by pushing
DIG key. (This procedure can only be done from normal display mode and not from SETUP). To exit, push
& hold RESET key.
ON/OFF HYSTERESIS (DEAD-BAND)
This step is used for setting up controller deadband or hysteresis and is
indicated by the message ‘Cntr db’ followed by the display of current
deadband value. The flashing digit is the active digit. Pushing DIG
key and keeping it pushed, will increment the digit. Releasing DIG
key and then pushing it again will decrement the value (DIG key
works as a toggle -- alternating between increment and decrement). To
change the next digit, first push the DIG key. This will advance the
flashing to the following digit. Use DIG key to change the value.
After the desired setting is displayed, push PROG key. This will take
you to the beginning of setup mode (or Tuning Mode)
NOTE: This step comes up for programming only if the unit is programmed to work as ON/OFF
controller. If not, Rate, Reset and Proportional Band are programmed.
7
ENTERING PID VARIABLES
PROPORTIONAL BAND
If PID mode is selected, then next parameter to be programmed is the proportional band. Proportional band, also
referred to as gain, determines the output in proportion to the error between setpoint and actual process
temperature. It is based on percent error of 1000 degrees if the display units are Centigrade and 2000 degrees if
units are Fahrenheit (or scaled for voltage/current inputs). For example, if the proportional band is set to 5.0 and
the units are Centigrade, then a process error of 50 degrees between setpoint and temperature will result in an
output that will be fully on. To enter a new value for proportional band, use DIG and DIG keys . Once
the value has been entered, push PROG key.
RESET
Parameter programmed after proportional band is Reset. As with other
functions, this is indicated by the display first showing the message
followed by current reset value. The message in this case is 'RESET'.
Again, use DIG key in conjunction with DIG key to change the
value.
Reset is used with proportional band to fine tune the controller.
Proportional band alone will bring down the error between setpoint and
process up to a certain point only. To reset the differential left by
proportional band, the error is integrated slowly over time until setpoint
and process coincide. This is done by introducing the reset factor. After
programming reset, push PROG key to program RATE.
RATE
Rate is the third factor in the PID control. This factor provides the
anticipation for the control as to how fast or slow process change is being
realized. This factor is usually handy at start ups when, generally, process
tends to lag setpoint and a higher output is required. On entering rate
mode, the display first reads 'RAtE' followed by rate value. This value
can be change by using DIG and DIG keys.
VERIFY MODE:
The Verify function is used for checking a previously programmed
ramp/soak profile. This mode is selected by pushing PROG key while
the unit is displaying 'VE
display one of the following: 'Cntr 1', 'Cntr 2', 'Cntr 3', 'Cntr 4',
'Cntr 5', 'Cntr 6', or 'Cntr 7'. At this time any one of the controllers can
be selected by pushing the DIG key. After selecting a controller, use
PROG key to step through the profile. To exit Verify mode at any time,
push EXT key. Unlike exiting 'ProFILE' mode, exiting VERIFY at any
point does not mark the end of a profile.
rIFY'. After this selection, the unit will
NOTE: Verify mode should only be used to check or change a previously programmed
parameter. DO NOT USE THIS MODE TO ENTER A NEW PROFILE. TO ENTER A
NEW RAMP/SOAK PROFILE, USE 'PrOFILE' MODE.
NOTE: Before verifying a profile, all Controllers must be in Stopped Mode. If not, the unit will
scroll the message 'StOP rUnnInG'
8
PROFILE MODE (ENTERING RAMP/SOAK):
This programming mode is used for entering process profile for a selected
controller. Once in programming mode (after entering pass-code), use
DIG key until the unit displays PrOFILE (for ramp/soak ‘Profile’ ).
Next, push the PROG key. The unit will display one of the following with
each push on DIG key: CntrL 1, CntrL 2, CntrL 3, CntrL4, CntrL
5, CntrL 6 or CntrL 7). After selecting the desired controller, push
PROG key to select it. A profile can now be programmed in the following
manner:
NOTE: Before programming or checking a programmed profile the Controller Must Be in the
Stopped Mode. If not, the unit will scroll the message "STOP RUNNING'.
HOW TO ENTER A TYPICAL PROCESS PROFILE
Upon entering the process profile mode, the display will briefly read Strt
SP (for ‘Start Setpoint’), and then the current value of Starting setpoint.
Use DIG and <DIG > keys to enter a desired value. The DIG
key increments and decrements the FLASHING
DIG key selects the digit to increment or decrement. Next, press
SETUP key to go on to the next function.
At this point the display will briefly read SetPt 1 and then the current
value of Setpoint #1. Use DIG and DIG keys to enter a desired
value. Next, press ‘PROG’ key to go to the following function.
The display will now read EntEr t (for ‘Enter time’), and then show the
current time value. Time entered is the time that it takes to ramp to the set
point (or soak time, if the previous and current set-points are same). The
value shown for time is in minutes
enter the desired value, and then press PROG key to go on to the next
function.
Repeat the above steps to program setpoints #2 thru #7. Once all 7
segments have been programmed, the display will revert back to beginning
of Programming mode selection. If all the seven segments are not desired,
the program can be aborted at any segment by simply pushing the EXT
key. The segment in which the EXT key is pushed is the one that is
considered to be the end of the program. During Verify Program mode, that segment and all the following
segments are labeled as ‘PrG End’.
NOTE:
AFTER ENTERING TIME FOR THE LAST SEGMENT GO TO THE NEXT
HIT THE EXIT KEY. THE UNIT MARKS THE SEGMENT BEING DISPLAYED AT THE TIME OF
PUSHING 'EXT' KEY AS THE END OF PROGRAM. THEREFORE, MAKE SURE THAT THE UNIT
IS IN THE SEGMENT THAT YOU WISH TO BE CONSIDERED AS THE END OF PROGRAM
BEFORE PUSHING 'EXT' KEY.
DO NOT PUSH 'EXT' KEY IN THE LAST SEGMENT OF YOUR RAMP/SOAK PROFILE.
. Use DIG and DIG keys to
digit, where as the
SEGMENT AND THEN
9
RAMP/SOAK PROFILE EXAMPLE
This is an example of how to program
Controller 1 with following parameters.
Ramp for 6 min. to 100 degrees
Soak at 100 for 30 min.
Ramp for 20min. to 200 degrees
Soak at 200 for 45 min.
Shutdown.
100
This profile would be programmed in the
following manner:
From 'VErIFY' display press DIG
key until ‘PrOFILE’ (Enter Ramp/Soak)
is displayed.
Press PROG key. The display will show 'C
key to select controller one.
Press PROG. The display will briefly show 'SEtPt 1', and then the current value for Setpoint #1. Use
DIG and DIG keys to set the display to 100 (Setpoint #1 = 100 ).
Press PROG. The display will briefly show 'EDIG keys to set the display to 6 (Time #1 = 6 min.).
Press PROG. The display will briefly show 'SEtPt 2' and then the current value for Setpoint #2. Use DIG
and DIG keys to set the display to 100 (Setpoint #2 = 100).
Press PROG. The display will briefly show 'EDIG keys to set the display to 30 (Time #2 = 30 minutes).
Press PROG. The display will briefly show 'SEtPt 3', and then the current value for Setpoint #3. Use
DIG and DIG keys to set the display to 200 (Setpoint #3 = 200).
Press PROG. The display will briefly show 'EDIG keys to set the display to 20(Time #3 = 20 min.).
Press PROG. The display will briefly show 'SEtPt 4', and then the current value for Setpoint #4. Use
DIG and DIG keys to set the display to 200 (Setpoint #4 = 200)
Press PROG. The display will briefly show 'E
and DIG keys to set the display to 45 (Time #4 = 45 minutes).
ntrL x', where x is the current Controller Number. Use DIG
ntr t', and then the current value for Time #1. Use DIG and
ntr t', and then the current value for Time #2. Use DIG and
ntr t', and then the current value for Rate #3. Use DIG and
ntr t', and then the current value for segment #4. Use DIG
Figure 2. Example Ramp/Soak profile
Degrees
200
Start
SetPt
Setpt #1
30 Min.
6Min.
Setpt #3
20 Min.
Setpt #2
Setpt #4
45 Min.
Time
Press PROG. Then press EXT to cause the program to end. The display will show 'VE
At this point the profile has been programmed into CN1514/1517 and may be verified by using VERIFY function.
rIFY'.
NOTE: ProFILE mode should only be used for entering new programs. VErIFY
mode should be used for program verification and making changes to an existing
program.
‘PROGRAM CONTROLLER’ MODE:
Depending upon input type, following parameters for individual controllers can be programmed:
CURRENT OR VOLTAGE INPUT
1) Controller selection 1) Controller selection
2) Controller type (ON/OFF or PID) 2) Controller type (ON/OFF or PID)
3) Input Signal type 3) Input Signal type
THERMOCOUPLE INPUT
10
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