Dwyer 2600 User Manual

Bulletin 949-1194
a Division of Dwyer Instruments, Incorporated
PO Box 338 Michigan City, IN 46361-0338
(800) 828-4588 (219) 879-8000 FAX (219) 872-9057
LOVE CONTROLS
®
LOVE
INSTRUCTIONS FOR THE 2600 SERIES
MICROPROCESSOR BASED
TEMPERATURE /PROCESS CONTROL
May, 2013 Page 1 of 52 949-1194 Rev. 7
CONTENTS
GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
MODEL IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Input Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Wiring for 4 to 20mA Transmitter inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Wiring for Optional Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Wiring for Option 924 Remote Set Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Wiring for Option 926 Remote Set Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Wiring for Option 928 Remote Set Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Wiring for Option 934 Analog Retransmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Wiring for Option 936 Analog Retransmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Wiring for Option 948 4-Stage Set Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Wiring for Option 992, 993, 995, 996 Serial Communications . . . . . . . . . . . . . . . . .11
FRONT PANEL KEY FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
PASSWORD TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
SECURITY LEVEL SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
NOTATION CONVENTIONS FOR THE MENUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
DISPLAY CONVENTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
THE HOME DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Programming and Operation for Ramp / Soak Feature . . . . . . . . . . . . . . . . . . . . . . . . . .15
AUTO / MANUAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Self Tune Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Operation AND PROGRAMMING OF OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Options 924, 926, 928, Analog Remote Set Point . . . . . . . . . . . . . . . . . . . . . . . . . .19
Option 934, 936, Isolated Analog Retransmission. . . . . . . . . . . . . . . . . . . . . . . . . .20
Option 948, 4-Stage Set Point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Option 992, 993, 995, 996 Serial Communication. . . . . . . . . . . . . . . . . . . . . . . . . .21
Serial Communications Options and Nonvolatile Memory . . . . . . . . . . . . . . . . . . . .22
MENU SELECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PRIMARY MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
SECONDARY MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
SECURE MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
ERROR MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41-43
CONFIGURATION MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
INPUT RANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
© 2001, Love Controls. All rights reserved. No portion may be copied without the express written consent of Love Controls.
May, 2013 Page 2 of 52 949-1194 Rev. 7
GETTING STARTED
1. Install the control as described on page 5.
2. Wire your control following the instructions on pages 5-11. If you are using a two-
wire transmitter as an input, see the drawing and instructions on page 7. Option
wiring instructions are on pages 8-11. Option descriptions and specific instructions
start on page 19.
3. Most controls do not need many (if any) program changes to work on your process.
For best results when changing the programming, make all the necessary changes
in the Secure Menu (page 31) before making changes to the Secondary Menu (page
24). If error messages occur, check the Error Messages on page 41-43 for help.
Take the example of a Model 26010 that comes from the factory programmed for type J thermocouples. Suppose for this example you wish to change the input to a 100 ohm Platinum RTD and limit the set point range between 0° and 300°C.
First, enter the Secure menu by pressing and holding the UP ARROW & ENTER keys for 5 Seconds. Press the INDEX key until the display shows I n P and press the
DOWN ARROW until the display shows P385. Don’t forget to press the ENTER
key to retain your setting.
Next, press the INDEX key to display U n i t . Press the DOWN ARROW until the display shows C. Press ENTER.
Next, press the INDEX key until S P L is displayed (pass the dPt, I n P t , and S E n C selections). Press the UP ARROW until the display shows 0. Press ENTER.
Finally, press INDEX key to display S P H . Press the DOWN ARROW until the display shows 3 0 0 . Press ENTER.
The necessary program changes are now complete. After 30 seconds the display will switch back to the temperature reading. If you want to return faster, press the
UP ARROW & ENTER keys (at the same time) and then press the DOWN ARROW & INDEX keys (again at the same time). This will ‘back out’ of the menu and
immediately display the temperature reading.
If you want to use Self Tune
®
, Auto/Manual, or the Ramp/Soak Programmer features, see the special sections on these items. Page numbers for these are in the Contents section on the previous page.
May, 2013 Page 3 of 52 949-1194 Rev. 7
MODEL IDENTIFICATION
26
Options (blank if none)
Alarm 0 = No 1 = Yes
Output A 1 = SSR* 3 = Relay* 5 = Current
Output B 0 = None 1 = SSR* 3 = Relay* 5 = Current
* Note: Switched15 VDC output standard on Output 1 or Output 3.
Option Description 924 Analog Remote Set Point, 0 to 10 VDC, scalable. 926 Analog Remote Set Point, 0 to 20 mADC, scalable (may be programmed for 1 to
5mA, 4 to 20 mA, etc.). 928 Analog Remote Set Point, 0 to 10,000 ohms, scalable. 934 Analog Retransmission of Process Variable or Set Variable, 0 to 20 mAdc, scalable
(may be programmed for 1 to 5mA, 4 to 20 mA, etc.). 936 Analog Retransmission of Process Variable or Set Variable, 0 to 10 VDC, scalable. 948 4-Stage Set Point. One of four pre-set set point values can be implemented via
contact closure. 992 RS-485 Serial Communications, Lovelink™ protocol. 993 RS-232 Serial Communications, Lovelink™ protocol. 995 RS-232 Serial Communications, Modbus 996 RS-485 Serial Communications, Modbus
®
protocol.
®
protocol.
Lovelink™, Lovelink™II, and Mother Node™ are Trademarks of Love Controls. MODBUS
®
is a trademark of Schneider Automation.
May, 2013 Page 4 of 52 949-1194 Rev. 7
INSTALLATION
92.0 mm
(3.620 in)
MOUNTING COLLAR
+0.8
-0.0
+0.032
-0.000
PANEL
Mount the instrument in a location that will not be subject to excessive temperature, shock, or vibration. All models are designed for mounting in an enclosed panel.
Select the position desired for the instrument on the panel. If more than one instrument is required, maintain the minimum of spacing requirements as shown on the drawing below. Closer spacing will structurally weaken the panel, and invalidate the IP66, UL type 4X rating of the panel.
Prepare the panel by cutting and deburring the required opening.
PANEL CUTOUT
From the front of the panel, slide the housing through the cut out. The housing gasket should be against the housing flange before installing.
From the rear of the panel slide the mounting collar over the housing. Hold the housing with one hand and using the other hand, push the collar evenly against the panel until the spring loops are slightly compressed. The ratchets will hold the mounting collar and housing in place.
CAUTION: It is not necessary to remove the instrument chassis from the housing for installation. If the instrument chassis is removed from the housing, you must follow industry standard practice for control and protection against Electro-Static Discharge (ESD). Failure to exercise good ESD practices may cause damage to the instrument.
WIRING
Do not run RTD, thermocouple, or other class 2 wiring in the same conduit as power leads. Use only the type of thermocouple or RTD probe for which the control has been programmed. Maintain separation between wiring of sensor, optional inputs and outputs and other wiring. See the “Secure Menu” for input selection.
For thermocouple input always use extension leads of the same type designated for your thermocouple.
May, 2013 Page 5 of 52 949-1194 Rev. 7
For supply connections use No. 16 AWG or larger wires rated for at least 75°C. Use copper conductors only. All line voltage output circuits must have a common disconnect and be connected to the same pole of the disconnect.
Input wiring for thermocouple, current, and RTD; and output wiring for current and 15 VDC is rated CLASS 2.
Control wiring is as shown (view is from rear of instrument showing wiring terminals).
Note: Illustrations shown inside the wiring terminals represent internal circuitry. See next page for output wiring chart.
INPUT WIRING
Wire inputs as shown in the chart below. Terminals 1 3 4 5 Thermocouple + ­RTD - 3 wire A B B RTD - 2 wire A B & J J (Jumper 3 to 4) Voltage + ­Current - + Key: ‘+’ = positive; ‘-’ = negative; ‘A’ = ‘odd’ colored lead; ‘B’ = ‘common’ leads; ‘J’ = Jumper.
May, 2013 Page 6 of 52 949-1194 Rev. 7
OUTPUT WIRING
Wire outputs as shown in the chart below.
Terminals
SP1 SSR SP1 15 VDC SP1 Relay SP1 Current SP2 SSR SP2 15 VDC SP2 Relay SP2 Current
10
+
+
13
NC
14
C
C +
15
NO
NO
-
16NC17
C
C +
NO
-
NO
-
27-28
18
Key: ‘+’ = positive; ‘-’ = negative; ‘NC’ = Normally Closed; ‘NO’ = Normally Open; ‘C’ = Common.
WIRING FOR 4 TO 20MA TRANSMITTER INPUTS
Wire power and outputs as shown above. Two-wire transmitters wire as shown below. View is of instrument as seen from the rear to show wiring terminals. For three- or four-wire transmitters follow the wiring instructions provided with your transmitter.
CAUTION: DO NOT WIRE THE 24 VOLT POWER SUPPLY ACROSS THE INPUT OF THE CONTROL. DAMAGE TO THE CONTROL INPUT CIRCUITRY WILL RESULT.
May, 2013 Page 7 of 52 949-1194 Rev. 7
WIRING FOR OPTIONAL INPUTS AND OUTPUTS
3
2
1
21
22
23
24
25
26
13
12
11
+
-
Option 924
Option 924: Input 0 to 10 VDC, 1 Megohm Impedance
3
2
1
21
22
23
24
25
26
13
12
11
+
-
Option 926
Option 926: Input 0 to 20 mADC, 10 Ohms Impedance
All wiring shown below is Class 2. Shielded twisted pair is required for Options 992 and
996. Shielded cable is required for Options 993 and 995. Options 924, 926, and 928 share a common ground with input.
CAUTION: DO NOT RUN SIGNAL WIRING IN THE SAME CONDUIT OR CHASE AS THE POWER WIRING. ERRATIC OPERATION OR DAMAGE TO THE CONTROL CIRCUITRY WILL RESULT.
WIRING FOR OPTION 924 REMOTE SET POINT
WIRING FOR OPTION 926 REMOTE SET POINT
May, 2013 Page 8 of 52 949-1194 Rev. 7
CAUTION: DO NOT RUN SIGNAL WIRING IN THE SAME CONDUIT OR
3
2
1
21
22
23
2
4
25
2
6
13
12
11
Option 928
Option 928: Input 0 to 10 kohms, 4µA Search Current
3
2
1
21
22
23
24
25
26
13
12
11
+
-
Option 934: Output 0 to 20 mADC, into 600 Ohms maximum
3
2
1
21
22
23
24
25
26
13
12
11
+
-
Option 936: Output 0 to 10 VDC, 20 mADC maximum
CHASE AS THE POWER WIRING. ERRATIC OPERATION OR DAMAGE TO THE CONTROL CIRCUITRY WILL RESULT.
WIRING FOR OPTION 928 REMOTE SET POINT
WIRING FOR OPTION 934 ANALOG RETRANSMISSION
WIRING FOR OPTION 936 ANALOG RETRANSMISSION
May, 2013 Page 9 of 52 949-1194 Rev. 7
CAUTION: DO NOT RUN SIGNAL WIRING IN THE SAME CONDUIT OR
5
4
3
2
1
21
22
23
24
25
26
15
14
13
12
11
Option 948
C A B
Switch Truth Table for Option 948
A to C B to C Active Set Point
open open 1SP1 closed open 2SP1 open closed 3SP1 closed closed 4SP1
2
1
21
22
23
24
25
26
12
11
C A B
Wiring for Relay control (Coil wiring not shown)
Alternate wiring for Transistor control. Use NPN open collector transistors. (Drive circuit not shown)
CHASE AS THE POWER WIRING. ERRATIC OPERATION OR DAMAGE TO THE CONTROL CIRCUITRY WILL RESULT.
WIRING FOR OPTION 948 4-STAGE SET POINT
SWITCH CONTACTS FOR OPTION 948 MUST BE ISOLATED AND CAN NOT SHARE WIRING WITH OTHER CONTROLS.
TRANSISTOR DRIVE MUST BE ISOLATED AND MAY NOT SHARE A COMMON GROUND WITH OTHER EQUIPMENT OR OTHER CONTROLS.
May, 2013 Page 10 of 52 949-1194 Rev. 7
CAUTION: DO NOT RUN SIGNAL WIRING IN THE SAME CONDUIT OR
10
9
8
7
27 28
29
30
31
32
20
1
9
1
8
1
7
*For half-duplex operation wire only A and B. Do not connect to Y and Z.
Options 992, 996
DIP Switch Positions*
Half Duplex* Full Duplex
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
DATA IN 30 DATA OUT 32 DATA GROUND 31
PIN DESCRIPTION 1 SHIELD 2 TRANSMIT 3 RECEIVE 4 RTS 5 CTS
PIN DESCRIPTION 6 DSR 7 GROUND 8 DCD 20 DTR
DB-25 WIRING
(VIEWED FROM WIRE SIDE)
1 2 3 4 5
6 7 8 9
RS-232 DB-9 WIRING
(VIEWED FROM WIRE SIDE)
PIN DESCRIPTION 1 DCD 2 RECEIVE 3 TRANSMIT 4 DTR 5 GROUND 6 DSR 7 RTS 8 CTS
DATA OUT 32 DATA IN 30 DATA GROUND 31
CHASE AS THE POWER WIRING. ERRATIC OPERATION OR DAMAGE TO THE CONTROL CIRCUITRY WILL RESULT.
WIRING FOR OPTION 992, 993, 995, 996 SERIAL COMMUNICATIONS
May, 2013 Page 11 of 52 949-1194 Rev. 7
FRONT PANEL KEY FUNCTIONS
Heater Fail Lamp Set Point 1 Lamp Set Point 2 Lamp
Process Display
Set Point Display
Manual Indicator
Alarm 1 Lamp Alarm 2 Lamp °F Indicator °C Indicator Remote Set Lamp Percent Lamp
The decimal point flashes when Self Tune is operating.
INDEX: Menu Navigation. Pressing the INDEX key advances the display to the
next menu item. May also be used in conjunction with other keys as noted below.
UP ARROW: Increments a value, changes a menu item, or selects the item to ON.
The maximum value obtainable is 9999 regardless of decimal point placement.
DOWN ARROW: Decrements a value, changes a menu item, or selects the item to
OFF. The minimum value obtainable is -1999 regardless of decimal point placement.
ENTER: Pressing ENTER stores the value or the item changed. If not pressed,
the previously stored value or item will be retained.The display will flash once when
ENTER is pressed. AUTO/MANUAL: This key toggles the control output between Automatic mode and Manual mode. Press and hold key for three seconds to activate. See section on AUTO/MANUAL operation on page 18. RUN/HOLD: This key toggles the Ramp/Soak program functions between Run mode (program runs as set up), and Hold mode (program functions are suspended). Press and hold key for three seconds to activate. See section on Ramp/Soak (page 15) for further details.
UP ARROW & ENTER: Menu Access. Pressing these keys simultaneously brings up the secondary menu starting at the alarm, tune, or cycle item (depending on programming). Pressing these keys for 5 seconds will bring up the secure menu.
INDEX & DOWN ARROW: Menu navigation. Pressing these keys simultaneously will allow backing up one menu item, or if at the first menu item they will cause the display to return to the primary menu.
INDEX & DOWN ARROW: Alarm Reset. If an alarm condition has occurred, press and hold these keys for three seconds to reset the alarm. Note that the alarm condition will not reset if the alarm condition still exists.
INDEX & ENTER: ‘Global Reset’. Pressing these keys simultaneously and holding them for 5 seconds forces a ‘warm boot’, restarting the control (similar to turning power off and on). ‘Global Reset’ will allow recovery from errors and reset the following menu items:
May, 2013 Page 12 of 52 949-1194 Rev. 7
A L i H : Alarm inhibit O P E n I n P : Input error message b A d I n P : Input error message C H E C C A L : Check calibration error
Correct the problems associated with the above conditions before using these reset keys. More than one error could be present. Caution is advised since several items are reset at one time.
While in the Primary or Secondary Menu, if no key is pressed for a period of 30 seconds, the display will return to the HOME position displaying the temperature value. While in the Secure Menu, if no key is pressed for a period of 60 seconds, the display will return to the HOME position displaying the temperature value. Outputs are disabled (turned off) when the Secure Menu is active.
NOTE: To move to the Primary Menu quickly from any other menu, press the UP ARROW & ENTER keys followed by pressing the INDEX & DOWN ARROW
keys.
SECURITY LEVEL SELECTION
Four levels of security are provided. The display shows the current security level. To change security levels change the password value using the UP ARROW and
DOWN ARROW keys and press the ENTER key. Refer to the password table (following) for the correct value to enter for the security level desired. The SE C r menu item security level may be viewed or changed at any time regardless of the present security level.
To set the access level to, for example, 2 , at the S E C r menu item press the UP
ARROW key until the upper display shows the password for level 2 access, 1 1 0 1 . Press the
ENTER key. The display will blink and return with the level value, 2, in the upper
display.
The password values shown in the table cannot be altered, so retain a copy of these pages for future reference. This is the only reference made to password values in this instruction book.
PASSWORD TABLE
Security Level
Menu
Primary Secondary Secure Primary Secondary Secure Primary Secondary Secure Primary Secondary Secure
May, 2013 Page 13 of 52 949-1194 Rev. 7
Status
Locked Locked Locked Unlocked Locked Locked Unlocked Unlocked Locked Unlocked Unlocked Unlocked
Displayed Value When Viewed
1
2
3
4
Password Value To Enter
1 1 1 0
1 1 0 1
1 0 1 1
1 1 1
NOTATION CONVENTIONS FOR THE MENUS
Because of the number of features available in this control, information is included that may not apply to your specific control. All usable features are included in this book, but may not be used in your process. To increase clarity the following conventions are used:
1. Certain features, menu items, and functions shown in this book may or may not appear on your control, depending on other menu item selections. At various places in the menus there are notes identifying menu items that “control” or “direct” other menu items. If you are looking for a particular menu item and can’t find it, check the menu item that is its “control” for proper setting.
2. The “#” symbol is used in two ways. It is used inside a group of characters to indicate which set point function (S P 1 or SP2) is being affected. It is also used before a group of characters of a menu item to indicate that there may be more than one selection or value for that menu item. This is used for certain repeated items such as in the Ramp/Soak Program section.
DISPLAY CONVENTIONS
The instrument front has two four digit displays, eleven indicators, and six keys. The diagram on page 12 shows the location of the displays and descriptors.
During normal operation the top four digit display indicates the temperature that is being read by the sensor. The bottom display indicates the set point. When you are programming the instrument, the bottom display indicates the Menu Item being programmed and the top display the value selected for that Menu Item. Error messages use both the top and bottom displays to indicate a particular error.
Each character can only be displayed with seven light segments. Alphabet characters may look peculiar when seen presented this way. The following is an example of the ‘seven segment alphabet’ as used in the instrument:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A b CdEFGHIJKLmnOPQ rSt U V U XYZ
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 567 8 9
Notice that some characters are in upper case while others are in lower case. Some look the same (e.g. G [G] and 9 [9 ]) and must be interpreted by context. Others are close (e.g. B [b ] and 6 [6 ]), but different. Usually, the context of the term or value will help you determine the correct character.
May, 2013 Page 14 of 52 949-1194 Rev. 7
THE HOME DISPLAY
The home display is the normal display while the control is operating. If no errors or functions are active, the HOME display will indicate the Process Variable (the temperature, pressure, flow, RH, etc., that is being measured) on the top display and the Set Variable (Set Point 1) on the bottom.
Items that can change the HOME display are the Auto/Manual function, the Run/Hold function, the P r o 9 function, the Pct O function, and any error message. Description of these special displays follows.
If the Auto/Manual key is pressed, the Manual indicator lights, the “%” indicator lights, and the home display is changed. The upper display continues to show the Process Variable (PV), but the lower display changes to show the percentage of output in tenths of a percent to 99.9% (0.0 to 99.9), or 100 if 100%. The display digit to the right of the number shows a flashing letter o to indicate that the value displayed is no longer the SV, but percent output. The SP2 percent output is indicated by the use of an overline on the letter õ. Access to the SP 2 value is made by the INDEX key. See Auto/Manual Operation on Page 17 for further information.
If P r o 9 is turned On, the HOME display changes the SV display from S P 1 to the Present Set Variable as calculated by the Ramp/Soak Programmer function. See Programming and Operation for Ramp/Soak Feature below for more information.
If P c t O (Secondary Menu) is turned On, the lower display changes to show the active percentage of output as required to maintain S P 1 . The display is similar to the Auto/Manual display above, except that the percent indicators (o ,õ ) do not flash, and the output is displayed in whole percentages of output, not in tenths of a percent. If the control has both S P 1 and SP2, the lower display will alternate between the S P 1 percent output and the SP2 percent output.
Error messages are listed on pages 41-43.
PROGRAMMING AND OPERATION FOR RAMP / SOAK FEATURE
The ramp / soak feature offers a great deal of flexibility by allowing changes in the set point to be made over a predetermined period of time. Dwell times can be programmed, and the alarm output relay can be programmed to open or close during any of the segments.
Theory of Operation
The 2600 Series controls offer a very simple approach to programming a ramp. Rather than requiring the operator to calculate an approach rate (usually in degrees per minute), the 2600 does the calculation internally. Thus, the operator only needs to program the target set point and the time desired to reach that point. When the ramp segment is executed by the control, it calculates the ramp required to move the process from the starting value (current PV) to the desired value (programmed SP) in the time allowed.
May, 2013 Page 15 of 52 949-1194 Rev. 7
Soaks (or dwells) are ramp segments where the target set point is the same as the beginning process value. This allows for multistage ramps without wasting intermediate soak steps. Care must be taken, however, that the process does actually reach the soak value before the soak time starts. If not, the next segment will calculate a slope from the starting PV to the target SP. Depending on your process requirements, this difference may be important. Make sure to test any program for desired results before running production material.
Do not operate Self Tune while a ramp function is operating. The ramp function will prevent the Self Tune from operating properly. Make sure that all tuning is set up before operating Ramp / Soak.
Program Setup
All of the programming for the Ramp / Soak function is done in the Secondary Menu. You may wish to work out your program on paper before going into the programmer menu sequence.
In the Secondary Menu INDEX to P r o 9 and make sure that Pro 9 is set to OFF.
INDEX to P S E t and turn On. Press ENTER.
Skip the S t A t setting (this is discussed later) and press INDEX to 1ti .
The following items repeat in the following order: 1 t i , 1 S P , 1 A 1 and/or 1A2 (if A L 1 or AL2 in the Secure Menu are programmed set to E U n t ), 2 t i , 2 S P , 2 A 1 ,..., 1 6 t i , 1 6 S P , 1 6 A 1 , 1 6 A 2 . To avoid repetition each item will only be described once.
Set 1 t i to the amount of time you want for the first ramp. This value is in time units (determined by the t b A S menu item) from 0 to 99 9 9 . Press ENTER.
Set 1 S P to the target value desired for the first ramp. This value is in actual units just like S P 1 . If the control is programmed for temperature, then the SP displays are in temperature. If the control is programmed for some other engineering unit, the SP is set in that unit.
Press INDEX to continue. If Alarm 1 is programmed as an event (AL 1 = EUnt), then 1 A 1 will appear. If you wish the Alarm 1 contact to function for this segment, set 1A1 for On . If not, set for O F F . Press ENTER. When 1 A 1 is set to O n , the Alarm 1 function will be active for the entire period set in 1 t i above.
Complete setting the segment times (2 t i ... 16ti ), segment set points (2 S P ... 1 6 S P ), and event alarms (2 A 1 ... 16A1 ) to O n or OFF.
For unneeded or unused segments set the segment times (2 t i ... 16ti ) to 0 , and set the segment set points (2 S P ... 16SP ) to the same value as the last active set point. A segment alarm may be set to indicate “end of run” at the segment number you select.
May, 2013 Page 16 of 52 949-1194 Rev. 7
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