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ATC770 Microprocessor-Based Pressure/Process Controller

53

SMART (TUNE) function in hundredths of a second. The display will show zero until the first Smart
trial.

Process Gain:

(AT.KP) will display the Process Gain value as estimated by the SMART (TUNE)

function in hundredths of units. The display will show 1.00 until the first Smart trial. The computed
value after the First Smart trial will be stored in non-volatile memory because it is used in automatic
computation of the Integral Pre Load Value.

Start Time of Smart Function:

(AT.T1) will display the time the SMART (TUNE) function started to

collect data for transient response analysis in hundredths of seconds. The display will show zero
until the first Smart trial.

Stop Time of Smart Function:

(AT.T2) will display the time the SMART (TUNE) function finished

collecting data for transient response analysis in hundredths of seconds. The display will show zero
until the first Smart trial.

Adaptive Step:

(AT.ADS) will display the integral step number used by the adaptive algorithm (the

range is 0 to 8). The display will show zero until the first Smart trial.

8.

I

NSTRUMENT

C

ALIBRATION

8.1

S

ETTING

THE

I

NTERNAL

D

IP

S

WITCH

NOTE: In this section the word Calibration means to set the Instrument to an internationally
recognized standard, independent of input device.

The instrument is shipped fully calibrated and need not be further calibrated.

Calibration of the ATC770 is a complicated procedure, requiring specialized equipment. Consult
the Dynisco technical assistance line at 800-221-2201 before attempting to work on this
instrument.

The instrument calibrations are accessible by an internal dip-switch (see below). This is done to
protect the calibration data area of the EEPROM.

Remember to change the switch settings back to the proper input as shown in Figure 13 for board
location and switch settings.

Remove the instrument from its case by gently pulling back the tabs on either side of the display.
This can be done with the unit powered, without fear of damage.

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Содержание ATC770

Страница 1: ...ATC770 Microprocessor Based Pressure Process Controller Installation and Operation Manual P N 974086 12 04 Rev G ECO 29250...

Страница 2: ...ions 8 3 Unpacking 17 4 Mounting and Wiring 18 5 Start Up Procedures 24 6 Configuration 31 7 Operation 45 8 Instrument Calibration 53 9 Error Codes 57 10 Normative References 60 11 Parameter Group Men...

Страница 3: ...emove instrument from case by spreading locking tabs Grasp the bezel and slide the instrument out of its case Slide the rubber gasket over the case Slide the instrument case into the cutout Attach the...

Страница 4: ...ads OFF Be sure transducer is at operation temperature and that no pressure is applied Change upper display to ON by using the Up arrow key Enter with the FUNC key After a few seconds the lower displa...

Страница 5: ...ain the correct P I D parameters for the process It will remain on until manually turned off It will also come on anytime the ATC770 is the automatic control mode Return to Group none and observe the...

Страница 6: ...nitor 6 2 1 37 Set the Alarm Type high low etc 6 2 2 37 Set the Reset Mode for Alarms 6 2 5 38 Set the Failsafe Mode for Alarms 6 2 6 38 Set the Alarm Value 6 2 7 39 Setting Control Ouput Set the Cont...

Страница 7: ...ATC770 Microprocessor Based Pressure Process Controller 7 Instrument Maintenance and Repair Instrument Maintenance 9 3 59 Repair the Instrument 13 83 Get Technical Assistance 13 83...

Страница 8: ...only parameters can also be viewed In the programming mode the lower display will show the parameter being displayed and the upper display will show its value In the operating mode the upper display w...

Страница 9: ...ibration and security codes protection Agency Approvals UL File 193253 cUL pending Self Certification CE Electromagnetic Compatibility and Safety Requirements The instrument is marked CE Therefore it...

Страница 10: ...absolute value with 0 1 resolution RPM Lit when lower display shows the Output Value scaled to RPM PEAK Lit when lower display shows the peak value 2 3 MAIN INPUT SPECIFICATION Main Input Selectable b...

Страница 11: ...any position of the display 2 4 REMOTE SET POINT INPUT SPECIFICATION Remote Set Point Input Selectable between the ranges 0 10 VDC 0 20 mA or 4 20 mA by jumper and instrument configuration Input Prot...

Страница 12: ...digital inputs are provided for control purposes The interface circuit is opto isolated with respect to the CPU and analog inputs DIG1 This contact acts as an automatic manual switch if it is enabled...

Страница 13: ...ed in no alarm condition failsafe or relay coil energized in alarm condition non failsafe The default condition is failsafe Threshold From 0 to 110 Full Scale the threshold may be limited due to the s...

Страница 14: ...CPU input and output circuits Type of Analog Output Jumper and keyboard selectable between 0 10 VDC min load 5 K with under overrange capability from 2 5 to 12 5 V 10 VDC min load 5 K with under over...

Страница 15: ...UNE algorithm 2 The Adaptive algorithm 1 TUNE ALGORITHM To implement the TUNE algorithm set the instrument in manual mode and the select SMART ON SMART will switch to OFF after the PID parameters PB T...

Страница 16: ...input and output when the input value goes lower than a threshold specified by the Automatic Stand By Pressure Low Limit parameter When this happens and the output value reaches the saturation condit...

Страница 17: ...output value NOTE A dry contact switch or relay must be fitted between terminal 62 Common and terminal 63 Digital Input 1 Remote AUTO MAN to enable the use of Digital Input 2 DIG2 and Digital Input 3...

Страница 18: ...his spread the two locking tabs located on either side of the case The instrument will move forward past the locked position Grasp the bezel and slide the instrument from the case Depending on the opt...

Страница 19: ...ATC770 Microprocessor Based Pressure Process Controller 19 Fig 2 ATC770 Outline Drawing...

Страница 20: ...e completion of a circuit when used as an interlock Should the alarm threshold be exceeded OR should power be lost to the instrument the contacts will open and the circuit will be broken If the alarm...

Страница 21: ...for service The safety requirements for Permanently Connected Equipment say a switch or circuit breaker shall be included In the building installation it shall be in close proximity to the equipment a...

Страница 22: ...rm 1 Common 47 Alarm 1 NC 48 Alarm 2 NO 49 Alarm 2 Common 50 Alarm 2 NC 51 Alarm 3 Common OPTIONAL 52 Alarm 3 NC NO 53 100 240 VAC OR 24 VAC OR 24 VDC Polarity need not be observed 54 Line Neutral Lin...

Страница 23: ......

Страница 24: ...tire instrument is reset to its default parameters If a unit does not have a particular option its parameters will not appear For example an instrument that does not have RS 485 communications will sk...

Страница 25: ...it is used to access and decrease the set point parameter When pressed for less than 3 seconds in automatic mode it used to switch the lower display from set point value deviation value output value...

Страница 26: ...ting Group 5 resets groups 1 2 3 4 and 5 5 3 SETTING THE INSTRUMENT S BASIC CONFIGURATION The example below shows those parameters by group which will permit an ATC770 to control a motor A modificatio...

Страница 27: ...ey until the lower display shows LI TYP Press the or key until the upper display shows the correct selection OFF AL alarms reset P Peak reset or AL P Press the FUNC key to set the value and move to th...

Страница 28: ...ey until nonE and GROUP show on the display Press the key until 4 shows in the upper display Press the FUNC key until the lower display shows LINE F Press the or key until the upper display shows the...

Страница 29: ...until nonE and GROUP show on the display Press the key until 5 shows in the upper display Press the FUNC key until the lower display changes to RI TYP Using the or keys select the voltage or current...

Страница 30: ...30 Fig 6 Remote Set Point Jumper Location Board E...

Страница 31: ...ote Set Point High parameter SP HI To set the Remote Set Point High parameter press the or keys select the desired value from the default PI SFV to the value selected in SP LO When finished press the...

Страница 32: ...10 VDC signal output The ATC770 s default setting is strain gage input To verify that the input is set for strain gage press the FUNC key until nonE and GROUP show on the display Press the key until...

Страница 33: ...o set the internal scaling for correct display To Access the Shunt Calibration parameter press the FUNC key until nonE and GROUP show on the display Press the key until 4 shows in the upper display Pr...

Страница 34: ...ions amplified units have a middle or end number of 4 5 or 6 The S840 000 1C has a 4 20 mA signal output the PT150 7 5M has a 0 5 VDC signal output while PT276 5M has a 0 10 VDC signal output If you h...

Страница 35: ...it can be psi bar mPa kg cm2 or any engineering unit the magnitude is all that is important To set the full scale value press the FUNC key until nonE and GROUP show on the display Press the key until...

Страница 36: ...than a safety mechanism that tells the instrument what to do in the event of a loss of the primary signal If the system is set up to shut down the process in a high alarm condition the Primary Input...

Страница 37: ...nel Link defaults to the primary process input To check or change this value press the FUNC key until nonE and GROUP show on the display Press the key until 3 shows in the upper display Press the FUNC...

Страница 38: ...ress the or keys until the upper display changes to the desired value Press the FUNC key to lock in the value and advance to the next parameter or press A M to return to the operating screen Similarly...

Страница 39: ...nd the lower display will change to AL1 with the threshold value in the upper display Press the or keys until the upper display changes to the desired value Press the FUNC key to lock in the value and...

Страница 40: ...e or keys until the upper display changes to the desired value Then press the FUNC key to lock in the value Press A M to return to the operating screen Next select the jumper setting necessary See Fig...

Страница 41: ...expander i e if the system has a 10 000 psi transducer but usually runs from 3 000 to 6 500 the RO HI can be set to 7 500 so that the output at 7 500 psi is full scale voltage or current Once the desi...

Страница 42: ...he upper display Press the FUNC key until the lower display shows CO TYP Using the or keys select the desired value 0 5 VDC 0 20 mA 4 20 mA 0 10 VDC or 10 10 VDC When finished press the FUNC key to lo...

Страница 43: ...4 shows in the upper display Press the FUNC key until the lower display shows CO MAX Using the or keys select the desired value from 10 0 to 100 0 When finished press the FUNC key to lock in the valu...

Страница 44: ...to lock in the value and A M to return to the main screen 6 5 SETTING THE SECURITY CODES The security code setting is accessible by setting an internal dip switch see Figure 12 below There are three S...

Страница 45: ...locked and cannot be changed If finished remove the instrument from its case and place both dip switch SW1 and SW2 into the OFF position to return to the operating mode 6 5 3 SETTING THE SECURITY CODE...

Страница 46: ...RE TRANSMITTERS EQUIPPED WITH AN INTERNAL SHUNT RESISTOR Be sure that the full scale and low scale values PI FSV and PI LSV have been set to match the range of the transducer and that the SHUNT functi...

Страница 47: ...s the or keys until the upper display changes to ON Press the FUNC key to calibrate the zero value When the lower display changes to SPAN C zero calibration is complete With signal applied equivalent...

Страница 48: ...the lower display changes to ZERO C Press the FUNC key until SMART shows on the lower display and OFF shows on the upper display Press the key to turn the upper display to ON and enter with the FUNC k...

Страница 49: ...e these parameters the power output of the controller is changed by a small step value Then the controller stores the process variable response From this response the controller estimates the three pr...

Страница 50: ...alue for Integral Pre Load he may do so by pressing the FUNC key until nonE and GROUP appears Press the key until 2 shows in the upper display Press the FUNC key until the lower display shows IP The u...

Страница 51: ...value reaches the saturation condition and the control output saves the last value stored when the process was stable This freezing of the output of the controller will last for the time specified by...

Страница 52: ...MA TRF The default will be bumpless bmPL To change to Set Point modification press the or key until the upper display changes to SP Press the FUNC key to set the value and move to the next parameter S...

Страница 53: ...ero until the first Smart trial Adaptive Step AT ADS will display the integral step number used by the adaptive algorithm the range is 0 to 8 The display will show zero until the first Smart trial 8 I...

Страница 54: ...bration mode as shown above The upper display should show CAL while the lower display shows ATC 2 Use the or keys to show the following functions Firmware revision Zero input counts ZERO Pressure inpu...

Страница 55: ...10 Primary Input Voltage 0 10V Full scale 10 V P 010 Primary Input Voltage 0 10V Verify 3 ML CUR Main analog output Current Zero 5 mA MH CUR Main analog output Current Full Scale 25 mA M CUR Main anal...

Страница 56: ...operating screen 8 3 3 COMMUNICATION TYPE This function is used to select the number and format of the serial bits used in communication To view or access this function press the FUNC key until nonE a...

Страница 57: ...available in Dynisco s publication 974089 Modbus J Bus Protocol for Dynisco UPR700 ATC770 Please contact Dynisco at 800 221 2201 for a copy of this manual 9 ERROR CODE On power up the ATC770 will ente...

Страница 58: ...heck that the Time Constants either AT TO or AT TAU are not too large If so it is necessary to run SMART tuning again or manually tune the system 8 Error during the automatic compute of the filter tim...

Страница 59: ...ODE AND TROUBLESHOOTING The display will show OPEN under one or more of the following conditions A D converter saturation Input current lower then 0 8 mA for 4 20 mA inputs Pressure input lower then 2...

Страница 60: ...minal front and cut out dimensions EN 61010 1 Safety requirements for electrical equipment for measurements control and laboratory use Part 1 General requirements EN 50081 2 Electromagnetic compatibil...

Страница 61: ...FLT Loading Default Data 5 2 3 GROUP Group Access Number N A Group 2 Function Sec As Set ZERO C Zero Calibration 7 1 1 SPAN C Span Calibration 7 1 1 SMART Self Tuning 7 2 2 RLTM Time of Smart Function...

Страница 62: ...dress 8 3 1 SC BUS Protocol Type 8 3 2 SC FRM Communication Type 8 3 3 SC BDR Communication Baud Rate 8 3 4 DEFLT Loading Default Data 5 2 3 Group 4 Function Sec As Set SHUNT Shunt Calibration 5 3 1 S...

Страница 63: ...RAMETERS SET POINT Group 1 Available Always Upper display Set point value Lower display SP Range From SP LO to SP HI ALARMS MASK RESET Group 1 Available Only if one or more alarms are configured with...

Страница 64: ...essure input full scale value for process and band alarm From pressure input full scale to pressure input full scale for deviation alarm The high limit may be expanded to 110 of span if display capabi...

Страница 65: ...ERO C Range Use and keys to switch the upper display from OFF to On then press FUNC key to start the zero calibration It is also possible to select the CLEAR value to delete the field calibration and...

Страница 66: ...of the step change used by the SMART TUNE function to estimate the process parameters Lower display AT STP Range From 25 0 to 25 0 Default value 10 0 PROPORTIONAL BAND Group 2 Available Always Upper...

Страница 67: ...d selected integral pre load value Lower display AT IP Range nAn manual Auto automatic Default value nan INTEGRAL PRE LOAD Group 2 Available Always Upper display Integral pre load value The value may...

Страница 68: ...Only if ASB is equal to On Upper display Pressure low limit threshold in percentage of full scale value Lower display ASB PL Range From 0 to 15 of full scale value Default value 5 AUTOMATIC STAND BY...

Страница 69: ...han OFF Upper display Time constant of the alarm 3 filter Lower display A3 FL Range OFF 0 4 1 2 3 4 5 sec Default value 0 4 sec RETRANSMISSION OUTPUT FILTER Group 2 Available Only if RO TYP is differe...

Страница 70: ...cale value Lower display PI DP Range Use and keys to select the position of the decimal point Default value None REMOTE SET POINT INPUT RANGE LOW Group 3 Available Only if RI TYP is different than OFF...

Страница 71: ...rm ALARM 2 TYPE Group 3 Available Only if A2 LNK is different from OFF Upper display Selection of alarm 2 type Lower display A2 TYP Range HI LO InhIb High low low with mask at start up For band alarm...

Страница 72: ...h for control output Lower display CO DP Range Use and keys to select the position of the decimal point Default value One decimal digit RETRANSMISSION OUTPUT RANGE LOW Group 3 Available Only if RO TYP...

Страница 73: ...NTERFACE ADDRESS Group 3 Available Only if serial communication interface is fitted Upper display Serial communication interface address Lower display SC ADR Range OFF 1 2 255 OFF means disabled seria...

Страница 74: ...to load the default data of the parameters belonging to group 1 group 2 and group 3 11 4 GROUP 4 PARAMETERS SHUNT CALIBRATION Group 4 Available Always Upper display OFF if shunt calibration disabled O...

Страница 75: ...ifferent than OFF Upper display Selected reset mode for alarm 1 Lower display A1 RES Range auto LAtCh Automatic reset manual reset Default value Auto ALARM 1 FAILSAFE MODE Group 4 Available Only if A1...

Страница 76: ...range Default value 1 0 ALARM 3 RESET MODE Group 4 Available Only if A3 LNK is different than OFF Upper display Selected reset mode for alarm 3 Lower display A3 RES Range Auto LAtCh Default value Aut...

Страница 77: ...mode without modification of set point or set point modification mode Default value Bumpless NOTE The bumpless mode returns to the previously entered set point The set point modification mode changes...

Страница 78: ...for control output Lower display CO D R Range r d r r d d d r The first digit shows the relationship between input signal and displayed output value The last digit shows the relationship between displ...

Страница 79: ...is fitted Upper display Type of remote set point input circuit is fitted Lower display RI TYP Range OFF 0 20 4 20 0 10 Disabled 0 20 mA 4 20 mA 0 10V Default value 4 20 mA NOTE Remember to make the p...

Страница 80: ...y value of the process time constant as estimated by SMART TUNE function Lower display AT TAU Range The time resolution is hundredths of second Default value Not applicable The display shows zero unti...

Страница 81: ...re are three security levels level A access to parameters group 1 level B access to parameters groups 1 and 2 level C access to parameters groups 1 2 3 4 and 5 SECURITY CODE LEVEL A Available Always U...

Страница 82: ...the process to set point This response is only concerned with the amount of error that exists between the actual pressure and set point and how long time the error has existed The integral response ON...

Страница 83: ...pressure increases Direct Reverse Action Examples Direct Action LED on Relay Energized LED off Relay De Energized Reverse Action Failsafe LED on Relay De Energized LED off Relay Energized NOTE Reverse...

Страница 84: ...NOTES...

Страница 85: ...NOTES...

Страница 86: ...NOTES...

Страница 87: ..._________________________ STATE _____________ ZIP __________________ COUNTRY _____________________________________________________________________ TELEPHONE _____________________________ FAX _________...

Страница 88: ...DYNISCO INSTRUMENTS 38 FORGE PARKWAY FRANKLIN MA 02038 ATTN MARKETING DEPT Place Stamp Here...

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