Bulletin 949-1194 INSTRUCTIONS FOR THE 2600 SERIES MICROPROCESSOR BASED TEMPERATURE /PROCESS CONTROL LOVE ® May, 2013 LOVE CONTROLS a Division of Dwyer Instruments, Incorporated PO Box 338 ❍ Michigan City, IN 46361-0338 (800) 828-4588 ❍ (219) 879-8000 ❍ FAX (219) 872-9057 www.love-controls.com Page 1 of 52 949-1194 Rev.
CONTENTS GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 MODEL IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 twowire 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.
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.
INSTALLATION 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.
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.
OUTPUT WIRING Wire outputs as shown in the chart below. Terminals 10 13 14 SP1 SSR C SP1 15 VDC + NC C SP1 Relay SP1 Current + SP2 SSR SP2 15 VDC + SP2 Relay SP2 Current 15 16 17 18 27 28 NO NO C NO NC C NO + - 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.
WIRING FOR OPTIONAL INPUTS AND OUTPUTS 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.
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.
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 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.
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 992, 993, 995, 996 SERIAL COMMUNICATIONS Options 992, 996 DIP Switch Positions* 7 Half Duplex* Full Duplex 8 17 18 9 1 2 3 4 5 6 10 27 28 29 1 2 3 4 5 6 19 30 20 31 32 *For half-duplex operation wire only A and B. Do not connect to Y and Z.
FRONT PANEL KEY FUNCTIONS Alarm 1 Lamp Alarm 2 Lamp °F Indicator °C Indicator Remote Set Lamp Percent Lamp Heater Fail Lamp Set Point 1 Lamp Set Point 2 Lamp Process Display Set Point Display Manual Indicator 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.
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.
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.
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 P c t O function, and any error message.
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.
The last menu item for the ramp / soak function is P E n d . P E n d determines what the control does when the program has ended. You may choose to have the program repeat (L o o P ), H o l d the last set point (1 6 S P ), revert to the local S P 1 , or turn the outputs off (O o F F ). It is important to remember that if you want the program to repeat, you must allow the process to return to the same condition that existed when the program first started.
AUTO / MANUAL OPERATION The AUTO / MANUAL function allows you to manually adjust the output of the control. This is normally used during process setup or start up. It can also be used for troubleshooting. To switch from AUTO to MANUAL press the AUTO / MANUAL key and hold for three seconds. The MANual indicator will light and the lower display will change from normal to showing the actual output in percent. The value will be the actual percentage of output that was active when the key was pressed.
Program Setup and Operation Do not cool the process or add heat while the tuning is occurring. In the secondary menu set t u n E to S E L F . Skip L E r n and check to make sure that d F A C is set to the desired value. Back up to L E r n and set to Y E S . The control will begin the Self Tune function. While the Self Tune function is active, the right hand decimal point on the lower display will blink. When Self Tune is complete, the blinking will stop.
Option 934, 936, Isolated Analog Retransmission. The analog retransmission option allows the Process Variable or the Set Variable to be sent as an analog signal to an external device. The signal may be either 0 to 10 VDC (Option 936) or 0 (or 4) to 20 mADC (Option 934). The output may be changed in the field from one to the other by the toggle switch located on the top printed circuit board. Wire the output as shown on page 9.
Option 948, 4-Stage Set Point. The 4-stage set point option allows four different values to be used for S P 1 and all of the values associated with the t u n E menu items. The control will switch to a given stage when an external contact or contacts are made or opened across the appropriate terminals at the rear of the control (S P S A , Set Point Switch Action, set for remote, r E ), or when the stage is selected from the Secondary Menu, S P (when S P S A is set for I n t ).
SERIAL COMMUNICATIONS OPTIONS AND NONVOLATILE MEMORY There are many different types of memory used in computer driven devices. The terms RAM (random access memory) and ROM (read only memory) are a couple with which you may be familiar. RAM is used in computers to run programs and hold data for a short period of time. This is the memory that is used primarily in PCs. RAM is very fast and can be read and written to over and over again. Its major weakness is that it is erased when the power is turned off.
Adding one of the computer communications options (e.g. 992, 993, 995, 996) changes the picture. The speed of computer communications is such that hundreds of instructions can be made in less than a minute. In such a situation, the million erase / write cycles could be used up in a couple of months causing the chip (and the control) to fail. Usually in such a situation, the control is under close observation by the host computer.
SECONDARY MENU Hold UP ARROW & ENTER. Press INDEX to advance to the next menu item. Press UP ARROW or DOWN ARROW to change the value in the display. Press ENTER to retain the value. If your instrument is not equipped with alarms (third character of part number is ‘0’), the Secondary Menu starts with O u t 1 , below. A1Lo Alarm 1 Low: The Low Alarm point is usually set below the Set Point. May not appear depending on A L 1 setting in Secure Menu.
##tP ProP Time Proportioning Cycle Time. Select 1 t P to 8 0 t P . 1tP A setting of 1 t P is recommended for solid state outputs (SSR or 15 VDC). 2 t P to 8 0 t P Time Proportioning Control is adjustable in 1 second steps. Recommended for mechanical outputs (relays, solenoids, etc.). For best contact life, a time should be selected as long as possible without causing the process to wander. #PuL Pulsed Time Proportioning Output: Select 1 P u L to 7 P u L . 1 P u L = Linear and 7 P u L = most nonlinear.
#PuL ProP Pulsed Time Proportioning Output: Select 1 P u L to 7 P u L . 1 P u L = Linear and 7 P u L = most nonlinear. Changes output linearity for use in cooling applications or for extremely fast response processes. At the center of the proportional band, a pulse value of 1 provides an output of one second on and one second off (50% output). A pulse value of 2 provides an output of one second on and two seconds off (33% output).
Damping factor, Select O F F , 1 to 7. Sets the ratio of Rate to Reset for the S E L F t u n E mode. 7 = most Rate. Factory set to 3. For a fast response process the value should be lowered (less Rate). For a slower process the value should be increased (more Rate). Manually adjust the PID values. PID control consists of three basic parameters, Proportional Band (Gain), Reset Time (Integral), and Rate Time (Derivative).
ArtE Approach Rate Time: Select O F F , 0 . 0 1 to 9 9 . 9 9 minutes. The function defines the amount of Rate applied when the input is outside of the Proportional Band. The A r t E time and the r t E time are independent and have no effect on each other. To increase damping effect and reduce overshoot set the approach rate time for a value greater than the natural rise time of the process (natural rise time = process value time to set point). Fint Fuzzy Logic Intensity: Select 0 to 1 0 0 %.
Pro9 Ramp/Soak: Select O n or O F F On Allows Programmed Ramp/Soak function to be started by the Run/Hold key on the control front panel. OFF Turns Ramp/Soak function O F F and resets program to beginning. PSEt Programmer function set: Select O n or O F F . OFF Skip Ramp/Soak Programming. Go to next Secondary Menu Item, InPC (next page). On Enable Ramp/Soak Programming. StAt Programmer Status Display in the Primary Menu when Prog (above) is On: Select O n or O F F .
InPC Input Correction: Select - 5 0 0 to 0 to 5 0 0 °F, °C, or counts. This feature allows the input value to be changed to agree with an external reference or to compensate for sensor error. Note: I n P C is reset to zero when the input type is changed, or when decimal position is changed. Factory default is 0 . FiLt Digital Filter: Select O F F , 1 to 9 9 . In some cases the time constant of the sensor, or noise, could cause the display to jump enough to be unreadable.
LOrE (Option 992, 993, 995, 996, Serial Communications) Local / Remote Status: Select L O C or r E . Does not affect other instruments on daisy chain. LOC The host computer is advised that remote write commands will be rejected. Any write commands sent to this control will be rejected. All read commands are accepted. rE The host computer is allowed to send write commands.
InP Input Type: Select one of the following. Refer to the Wiring section for the proper wiring. J-IC Type “J” Thermocouple CA Type “K” Thermocouple EType “E” Thermocouple tType “T” Thermocouple LType “L” Thermocouple nType “N” Thermocouple r-13 Type “R” Thermocouple S-10 Type “S” Thermocouple bType “B” Thermocouple CType “C” Thermocouple P392 100 ohm Platinum (NIST 0.00392 Ω/Ω/°C) n120 120 ohm Nickel P385 100 ohm Platinum (IEC/DIN 0.00385 Ω/Ω/°C) 1P38 1000 ohm Platinum (IEC/DIN 0.
InPt Input Fault Timer: Select O F F , 0 . 1 to 5 4 0 . 0 minutes. Whenever an Input is out of range (U F L or O F L displayed), shorted, or open, the timer will start. When the time has elapsed, the controller will revert to the output condition selected by I n P b below. If O F F is selected, the Input Fault Timer will not be recognized (time = infinite). SEnC Sensor Rate of Change: Select O F F , 1 to 4 0 0 0 °F, °C, or counts per 1 second period.
If O u t 1 (Page 19) is set for # # t P , # P U L , or P r o P , then S 1 O L and S 1 O H appear. If O u t 1 is set for O n O F , then skip to S 1 r E . S1OL Set Point Output Low Limit: Select 0 to 1 0 0 % but not greater than S 1 O H . This item limits the lowest output value. This is useful for adding a bias to the process when needed. Factory set to 0 for output codes 1 and 3. Factory set to 2 0 for output code 5 (20% output equals 4 mA output).
If your control is not equipped with Set Point 2, then proceed to the alarm section (next page). S2t Set Point 2 type: Select A b S or d E . AbS Absolute S P 2 . S P 2 is independent of S P 1 , and may be set anywhere between the limits of S P L and S P H . dE Deviation S P 2 . S P 2 is set as a deviation from S P 1 , and allows S P 2 to retain its relationship with S P 1 when S P 1 is changed (S P 2 tracks S P 1 ). S2St Set Point 2 State: Select d i r or r E . dir Direct Action.
S2rE Set Point 2 Reset. Select O n O F or H o l d . OnOF Output will automatically reset when process passes back through SP2d. Hold Manual Reset. Reset (acknowledge) by simultaneously pressing the INDEX & DOWN ARROW keys for 3 seconds. S2Pi Set Point 2 Power Interrupt. Select O n or O F F . On Alarm Power Interrupt is O n . Output will automatically reset on powerup if no alarm condition exists. OFF Alarm Power Interrupt is O F F .
The diagram below shows the action and reset functions for both absolute and deviation alarms. D = 1 degree F, 1 degree C, or 1 count. Note that when Alarm Power Interrupt, A 1 P i , is programmed O n and Alarm Reset, A 1 r E , is programmed for H o l d , the alarm will automatically reset upon a power failure and subsequent restoration if no alarm condition is present.
If A L 1 is set to O F F goto A L 2 (next page). If A L 1 is set to E U n t , go to A 1 S t below. A1t Alarm 1 Type: Select A b S or d E AbS Absolute Alarm that may be set anywhere within the values of S C A L and S C A H and is independent of S P 1 . dE Deviation Alarm that may be set as an offset from S P 1 . As S P 1 is changed the Alarm Point will track with S P 1 . A deviation alarm will also track any active ramp or soak set point. A1rE Alarm 1 Reset: Select O n O F or H o l d .
If A L 2 is set to O F F and the control is not equipped with options, the Secure Menu ends here. If A L 2 is set to O F F and the control is equipped with options, proceed to S P S A , A d d r , or r S C L below. If A L 2 is set to E U n t , go to A 2 S t below. A2t Alarm 2 Type: Select A b S or d E AbS Absolute Alarm that may be set anywhere within the values of S C A L and S C A H and is independent of S P 1 . dE Deviation Alarm that may be set as an offset from S P 1 .
SPSA (Option 948, 4-Stage Set Point) Switch Action: Select r E or I n t . rE Set Point Stage selected by external contact closures. Int Set Point Stage selected by internal menu selection. See S P menu item in Secondary Menu. Addr (Option 992, 993, 995, 996, Serial Communications) Control Address: Set from 1 to 3 F F for Options 992 and 993. Set from 1 to F F for Options 995 and 995. This number (hexadecimal, base 16) must match the address number used by the host computer.
ERROR MESSAGES Any error message may be cleared by using the ‘Global Reset’ by pressing and holding the INDEX & ENTER keys for five seconds. Display ArEA (Alternates with PV) Meaning This message appears if the ambient temperature of the control approaches the ends of tolerance. ArEA This message appears if the ambient temperature of the control is out of range or RJC sensor is broken May, 2013 Action Required Correct the ambient temperature conditions.
ERROR MESSAGES Any error message may be cleared by using the ‘Global Reset’ by pressing and holding the INDEX & ENTER keys for five seconds. Display UFL or OFL Meaning Underflow or Overflow: Process value has exceeded input range ends. SP Outputs Set point outputs active Alarm active Action Required May be normal if Input signals go above or below range ends. If not the case, check sensor, input wiring and correct.
ERROR MESSAGES Any error message may be cleared by using the ‘Global Reset’ by pressing and holding the INDEX & ENTER keys for five seconds. Display No display lighted Meaning Display is blank. Instrument is not getting power, or the supply voltage is too low. FAIL tESt Fail test appears upon power up if the internal diagnostics detect a failure. This message may occur during operation if a failure is detected. Displays flash. Fail test may also occur due to an EEPROM failure.
CONFIGURATION MENU DO NOT ENTER THE CONFIGURATION MENU UNLESS YOU HAVE BEEN INSTRUCTED TO BY THESE INSTRUCTIONS. INCORRECT ENTRY OF DATA IN THE CONFIGURATION MENU MAY CAUSE IMPROPER OR UNPREDICTABLE OPERATION OF THE INSTRUMENT. The Configuration Menu is used to quickly recover the instrument after certain Error Codes. The configuration for your particular model is shown on the Model / Serial label located on the left side (when viewed from the front) of the instrument housing.
4. Press INDEX to C n F 1 . 5. Press INDEX to A c P t . If you do not want to retain the re-confi guration, this is your last chance to return to the old confi guration. Press ENTER at A c P t n o to exit and retain the old configuration. Otherwise, press UP ARROW and ENTER at A c P t Y E S to retain the new configuration. 6. The instrument will re-boot with factory settings. May, 2013 Page 45 of 52 949-1194 Rev.
SPECIFICATIONS Selectable Inputs: Thermocouple, RTD, DC Voltage, or DC Current selectable. Input Impedance: Thermocouple = 3 megohms minimum. RTD current = 200 μA. Current = 10 ohms. Voltage = 5000 ohms. Sensor Break Protection: De-energizes control output to protect system after customer set time. (See I n P t in Secure Menu.) Set Point Range: Selectable (See Input Ranges Page 49). Display: Two 4 digit, 7 segment 0.56˝ high LEDs.
Control Output Ratings: SSR: 2.5 A @ 240 Vac at 25°C (77°F). Derates to 1.25 A @ 55°C (130°F); Relay: SPDT, 10 A @ 240 VAC resistive; 1/2 hp @ 120 VACor 1/3 hp @ 240 VAC; Alarm Relay: SPST, 3 A @ 240 VAC resistive; 1.5 A @ 240 VAC inductive. Pilot Duty Rating: 240 VA, 2A @ 120 VAC or 1A @ 240 VAC. Current (isolated): 0 to 20 mA across 600 ohms maximum. Switched Voltage (isolated): 15 VDC @ 20 mA. Panel Cutout: 92 mm x 92 mm (3.625˝ x 3.625˝). Depth Behind Mounting Surface: 103 mm (4.0˝) maximum.
-992 RS-485 Series Communications Port Compliance: EIA-485 Isolation: 500 VAC Protocol: Lovelink™ II Address Range: 001H to 3FFH Baud Rates: 300, 1200, 2400, 4800, 9600, 19.2k, 28.8k. Mode: Half duplex Character: 8 bits, 1 start, 1 stop, no parity. Number of units on line/port1: 32. Cable Length1: 6,000 ft (1,828 m). Termination: 120 Ohms, balanced.
INPUT RANGES INPUT TYPE Type J or L1 Thermocouple Type K1 Thermocouple Type T1 Thermocouple Type E1 Thermocouple Type R Thermocouple Type S Thermocouple Type B Thermocouple Type C Thermocouple Type N1 Thermocouple 100 Ω Plt. 0.00385 DIN1 RTD 100 Ω Plt. 0.00392 NIST1 RTD 120 Ω Nickel 0.00628 US1 RTD 1000 Ω Plt. 0.
Meets IP66 (UL Type 4X) All dimensions are in millimeters with inches in parenthesis. Panel cutput for all models is 92mm x 92mm (3.625in x 3.625in). Allow for 13mm (0.5in) clearance at the rear of the instrument. May, 2013 Page 50 of 52 949-1194 Rev.
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