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Mounting and Operating Instructions EB 6493-1

1. 6493 1 EN 49 Functions of the compact controller 3 5 11B OUT Configuration of binary outputs and BO2 This function enables you to specify which operating conditions are to be indicated by the bi nary outputs and BO2 You can view the states of the binary outputs in the level with the BIN function see section 3 9 4 Note When you have selected a three step output see section 3 5 10 you are not able to use the functions of the binary outputs Having selected a two step output you can use the functions of the binary output BO2 All the settings of B OUT have priority over the settings made with the functions LIM1 and LIM2 see section 3 6 1 Choose between Configuration of binary output oFF B BO1 Binary output BO1 deactivated Active when binary input active F02 1 Active when external reference variable selected B BO1 Active in automatic mode Configuration of binary output BO2 oFF B BO2 Binary output BO1 deactivated F01 B BO2 Active when binary input active F02 B BO2 Active when external reference variable selected F03 B BO2 Active in automatic mode 50 EB 6493 1 EN Functions of the compact controller 3 6 ALRM Alarm functions This main group enables you to determine the functions of the limit relays L1 and L2 The limit relays m
2. YR Ty Y 4 1 gt 1 KPL2 gt Y TZ d 1 gt t TYL2 TYL2 Ye Fig 16 Three step output with internal position feedback and PPM 48 6493 1 EN Functions of the compact controller Three step output with external position feedback and PPM This type of three step output is similar to the three step output with internal position feedback and pulse pause modulation PPM The only difference is that the position of a connected actu ator is fed back externally via the WE input for example using a potentiometer The parameter TY is omitted The assignment of the WE input for the external position feedback is performed in the main group SETP function SP VA setting WE Refer to section 3 3 1 If a potentiome ter is used for external position feedback it must be calibrated as described in section 3 9 5 Parameters to be set KPLT KPL2 TYL2 TYL2 TZ Gain Y Gain Y Duty cycle in s Duty cycle Y in s Minimum on time Y in s Minimum on time Y in s Dead band of three step output in Y n e_ t ias gt _ u 1 v gt en t m2 Fig 17 Three step output with external position feedback and PPM
3. Display blinks Reason Remedy 1 No access to EEPROM Return device to SAMSON ERR 2 EEPROM cannot be programmed Return device to SAMSON ERR 3 Default settings lost Return device to SAMSON ERR 4 Functions changed without user Check settings of the functions ERR intervention 5 Parameters changed without user Check settings of the parameters ERR intervention 6 Unknown whether external or inter Specify internal or external ERR nal reference variable is to be used reference variable 7 Data of calibration process changed Re adjust the analog inputs and or ERR without user intervention the analog ouputs 30 Error during adaption Refer to page x for more details ERR to 36 ERR In case any of these error messages arises the binary output is set for alarm messages 96 EB 6493 1 EN Appendix C Checklist TROVIS 6493 Compact Controller Controller no Date of configuration Firmware no Signature Appendix C Main Function Settings Parameters group PAR KP TN TV Y PRE IN INT INI X INI IN2 IN2 X IN2 MEAS MAN 1 1 CLAS X WE X TS X WE TS WE SQR X WE 6493 1 EN 97 Appendix Main Function group CO Settings Parameters IN FUNC cont X MIN MAX K X K Y WE MIN MAX K X K Y SETP SP VA W WINT A WINT
4. 25 Fixed set point control practical 61 Follow up 25 practical 62 practical example with function 64 Function shown on the display Function generation input variables 23 output variable 39 Infrared interface 16 75 Input 18 24 Input signal range IND a 24 teer etie dee 20 IN das 20 Input variables 22 TINGLING iue ceres terio bes 22 function generation 23 monitoring with limit relays 51 root extraction 23 K Key number 10 11 fast 12 14 31 L 1 52 12 52 Limit relays 52 5 51 Limitation rate of output change 37 Locking of output signal 39 M Manual mode upon transmitter failure 21 Manual automatic changeover by 35 Manual automatic 7 Manual automatic switchover 8 Measuring range 21 Index N INI 100 2 2 encor ya iR SEE 20 1000 re 20 Operating
5. Wav MIND Fig 6 Main group CNTR 30 6493 1 EN Functions of the compact controller Parameters to be set KP Proportional action coefficient TN Reset time TV Derivative action time Derivative action gain Y PRE Y rate action DZXD Dead band of error DZXD Limitation of error lower limit DZXD Limitation of error upper limit 3 4 2 SIGN Inversion of error Xd This function enables you to reverse the input operating direction Multiplication by 1 converts an increasing error into a decreasing one or vice versa a decreasing error into an increasing one This also inverts the operating direction of the output signal Note the set operating direc tion in the DIRE function see section 3 4 6 There the operating direction of the output signals may be changed as well Choose between dir d No inversion of error in d Inversion of error 3 4 3 D PID Assignment of controller output D element When dynamic behavior with D component has been selected see section 3 4 1 you may set different input variables for the D element error or controlled variable If you have selected error the compact controller reacts to a fast change in the controlled vari able the reference variable or the disturbance variable by generating a D step response If you select the controlled variable only a fast change in the controlled variable causes a D step response in the output variable The D component of the compact
6. sayy Big juawuBissp zwi LWIT 1004 4ndu Wav NI lo NI Buunspayy Fig 2 Main group IN 6493 1 EN 19 Functions of the compact controller 3 2 1 INT Input signal range IN1 This function enables you to define the input signal type and range for the analog input In1 The parameters lower and upper range values must be given as absolute values Choose between 0 20 mA to 20 mA input 4 20 mA 4 to 20 mA input 0 10V Oto 10 V input 210 2to 10 V input Parameters to be set Y INI Lower range value as absolute value INI Upper range value as absolute value 3 2 2 IN2 Input signal range IN2 Note that there are two hardware versions for the analog input In2 controller version 6493 01 model no on the name plate has a temperature sensor or potentiometer input whereas con troller version 6493 02 has a mA input This function enables you to define the input signal type and range for the analog input In2 The measuring range must be specified with the parameters IN2 and IN2 Make sure that the span is not smaller than 100 C Choose between 100 PT Pt 100 resistance thermometer hardware range 100 to 500 C 1000 PT Pt 1000 resistance thermometer hardware range 100 to 500 C 100 NI Ni 100 resistance thermometer hardware range 100 to 500 C 1000 NI Ni 1000 resistance thermometer hardware range 60 to 250 C 0 1 KOHM 1000 Q input Parameters to be set YINI
7. are stated in absolute values However in Fig 18 is given in per cent Second case the limit relay monitors the controlled variable X for falling below a preset limit The limit relay is activated when the controlled variable decreases and reaches the preset limit LIX LI WE or LI XD When the controlled variable increases and reaches the limit plus the differential gap L HYS the limit relay is deactivated When limit relay 1 is activated icon appears on the display The Micon is displayed when limit relay 2 is activated 6493 1 EN 51 Functions of the compact controller 3 6 1 LIMT Limit relay L1 The function of the limit relays has been described in the previous section 3 6 Note Functions of the two step or three step output C OUT see section 3 5 10 and functions of the binary outputs B OUT see section 3 5 11 have priority over the settings of the functions and LIM2 Choose between Limit relay L1 oFFL1 Limit relay LI deactivated Lo L1 X L1 activated when LI X is not reached Hi L1 X activated when LI X is exceeded Lo L1 WE L1 activated when LI WE is not reached Hi L1 WE L1 activated when LI WE is exceeded Lo L1 YP L1 activated when LI YP is not reached Hi L1 YP L1 activated when LI YP is exceeded Lo L1 XD L1 activated when LI XD is not reached Hi L1 XD L1 activated when LI XD is exceeded AbSLIXD activated when the value of LI XD is excee
8. WRAN A WRAN W2 W2 WE SP FU RAMP TSRW WIRA CH SP CNTR KP Y PRE DZXD DZXD A DZXD SIGN D PID CH CA CUP CLI M 98 6493 1 EN Appendix Main Function Settings Parameters group CO CNTR M ADJ cont DIRE F FOR FC K2 FC K3 AC VA AV KI OUT SAFE YIKI MA AU Y LIM Y Y XY RAMP TSRA YIRA BLOC FUNC MIN MAX 1 2 3 4 5 6 7 K X K Y Y VA Y SRC CALC CA K1 CA K2 CA K3 C OUT KPL2 TYL2 MinTYL1 MinTYL2 XSDY TZ TY 6493 1 EN 99 Main Function Settings Parameters group CO OUT B OUT cont LIMI LI WE LI YP LI XD L HYS LIM2 LI WE LI YP LI XD L HYS AUX RECO 1 KEYL VIEW FREQ DP 100 6493 1 EN EB 6493 1 EN 101 Index Index A Actual value increase decrease 34 Alarm 21 PUNE Sr EE kei 21 Analog inputs adjustment 00005 59 VIEW lad eR cec eR 58 Analog output assignment 40 mathematical adaption 40 signal 39 B Binary input change between reference variables 28 enable disable operator keys 54 increase decrease of actual value 34 initialization of constant output value NIK ist
9. Parameters to be set MIN Lower range value of output signal MAX Upper range value of output signal K1 X to K7 X Input values for points 1 to 7 K1 Y to K7 Y Output values for points 1 to 7 3 3 SETP Reference variable This main group enables you to determine one or more reference variables and you can switch between them as required The compact controller has two internal reference variables W and W2 for fixed set point control However you must activate W2 to use it The default setting of the controller is fixed set point control To obtain follow up control you only need to activate the external reference variable WE However the input WE can also be used for fixed set point control serving as an input for the position transmission of a three step output with external po sition feedback or as feedforward control If you want to activate one of these control modes you need to adjust them in this main group Moreover you may select a set point ramp with var ious starting conditions 6493 1 EN 25 Functions of the compact controller VAdS 79485 3M ZN M 45 2 7445 dwva lt DEN P FAT s 0M E dumm IM IM jag uoiejes eqptupA e ueJejey 0245 O I 4135 02 34 Fig 4 group SETP 26 EB 6493 1 EN Functions of the compact controller 3 3 1 SP VA This function enables you to define which reference variables are a
10. jo uoyojdopy Ando A O I dt dA NONNA dvav 2018 dwva WITA NV VW 3dvs Wn rd o i lt lt lt P A a l Buppoy duy uoyopw _ ejqpup 4ndjno pug 1no 1no O I 1no Fig 9 Main group OUT 36 6493 1 EN Functions of the compact controller 3 5 3 Y LIM Output signal limitation Yp p Output signal limitation is always active When entering parameter level only the minimum and maximum output variable may be set on LI YP Output signal limitation activated Parameters to be set Y Y Minimum output variable Y Maximum output variable 3 5 4 RAMP Output ramp or limitation of rate of output changes This function enables you to implement an output ramp or limit the rate of output changes The rate of output changes can be limited for an increasing and or a decreasing output signal Out put ramp means that the output variable changes at a constant speed The parameter TSRA de termines the transit time of the output variable ramp and thus the speed TSRA refers to an output change of 100 see Fig 10 The output ramp is started by mmm activating the binary input bil You may choose between starting the ramp with either 10 or with the value of the parameter YIRA The ramp is deactivated in manual mode and
11. Decimal place depends on the DP function main group AUX The parameter values in brackets only apply to controller version 6493 02 EB 6493 1 EN 81 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default Reference variable SEIP on W Internal reference variable W always active SP VA W W Internal reference variable 1 MWRAN 100 0 SP VA AWRAN I 0 0 WINT Lower range value W W2 WE 599 100 0 AWNT 1 0 0 AWINT Upper range value for W W2 WE MWINT 500 0 9999 1 100 0 MWRAN Limitation of lower range value MWINT 100 0 ZA WRAN 0 0 AWRAN Limitation of upper range value WRAN 500 0 AWINT 100 0 absolute oFF W2 oFF W2 Internal reference variable W2 off SP VA W2 2 Internal reference variable W2 100 0 onW2 on X WRAN 0 0 absolute oFF WE oFF WE External reference variable WE off p 27 noPA SP VA WE No parameters on WE on WE input for ext position feedback with 3 step output FO2 WE input for feedforward control CO oFF RAMP oFFRAMP Set point ramp off SP FU RAMP _ TSRW Time parameter 1 9999 s 10 SP FU RAMP starts with and meas value WIRA Initial value for reference variable MWINT 100 0 202 RAMP starts with Bl and WIRA AW
12. The parameter TYLI is the duty cycle and the maximum on time at the same time is a gain factor T TYLI s In addition you need to set the parameter It specifies the minimum on time in percent of the duty cycle Due to the hardware the minimum on time is at least 0 3 s When choosing the parameters TYL1 and suitably the two step output with PPM provides a good compromise between small fluctuations in the controlled variable high switch ing frequency and high service life of the final control element low switching frequency The eletrical wiring is the same as for binary output BO1 see section 7 The two step output with adjustable hysteresis is described on page 42 Parameters to be set KPLI Gain Y TYLI Duty cycle maximum on time in seconds Y TYLI Minimum on time of Y in TZ Dead band of two step output in 6493 1 45 Functions of the compact controller Ypip m KPLI Yro Y A 1 T 1 1 50 1 1 L Fig 15 Two step output with PPM 46 6493 1 EN Functions of the compact controller Three step output with internal position feedback and PPM The three step output with internal position feedback and pulse pause modulation converts the three step signal into a pulse sequence The characteristic of t
13. matic key Changes from manual to automatic mode and vice versa In manual mode appears No function Cursor keys Alv Change the value of W or W2 when they are displayed in the lower dis play section Change controller output in manual mode and when Y is indicated in the lower display section Browse within the main groups functions settings and parameters Change function settings and rameter values Return key Displays the current reference vari able Return to preceding level up to oper ating level No key pressed After approx 5 minutes display changes to current reference vari able Exception in manual mode and when output variable is displayed Changes to operating level after approx 5 minutes EB 6493 1 EN 7 Operation 2 3 Operating level In the operating level you can Press Comments view different variables W W2 WE Y Xd Press selector key repeat edly until the desired vari able appears on the dis play W2 and WE are only dis played when you have activated them in SETP see section 3 3 1 select another reference variable Press selector key repeat edly until the desired ref erence variable W W2 or WE is displayed Press the enter key When the reference vari ables are deactivated W W2 or WE blink Whereas they do not blink when active change the value of the internal reference va
14. 3 2 8 FUNC Function generation of X and WE You may apply function generation to the signal X as well as to WE Choose between Function generation of X oFF X No function generation of signal X on X Function generation of X Function generation of WE oFF WE function generation of signal WE on WE Function generation of WE 6493 1 EN 23 Functions of the compact controller Function generation means EL that a signal is re evaluated to be further processed This al lows you to adapt auxiliary reference or equivalent vari ables required for measuring gt and control to your specific control loop For this purpose you must specify 7 points to characterize the relationship between signal E to be func tion generated X WE and mi Toss ies S aet the desired new output signal E X or WE This relation MBA Lower range value MBE Upper range value ship should be known to you either from physical laws ex perience or from calculated values e g the relationship between steam pressure and temperature We recommend that you either draw up a table or create a curve in a Cartesian coordinate system Choose the 7 points in such a way that a curve can easily be created by drawing straight lines between two adjacent points Fig 3 Example of parameter for function generation The points are entered via the parameters K1 X to K7 X for the input signal and K1 Y to K7 Y for t
15. 30 3 mA Outputs Optionally continuous action on off or three step output Continuous Signal range 0 4 to 20 mA load lt 7400 action output Control range O to 22 mA 0 to 110 95 6493 1 EN 73 Technical data Error Zero lt 0 2 76 lt 0 1 Temperature influence Zero lt 0 1 26 10 span lt 0 1 10 K Switching output 2 relays with floating switching contact Max 250 V AC max 250 V DC max AAC max 0 1 DC cos 1 Spark suppression 2 2 nF and varistor U 275 V Binary output Isolated transistor output max 50 V DC and 30 mA min 3 V DC Infrared interface Transfer protocol SAMSON protocol SSP Transfer rate 9600 bit s Angle of reflection 50 Distance Max 0 7 m General specifications Display 4 digit LCD Configuration Function blocks saved in read only memory for fixed set point and follow up control Power supply 90 to 250 V AC 47 to 63 Hz 24 V AC 21 5 to 26 5 V AC 48 to 62 Hz Power consumption 13 VA 90 to 250 V AC 6 VA 24 V AC Temperature range 0 C to 50 C operation 20 C to 70 C shipping and storage Degree of protection Front panel IP 65 housing IP 30 terminals IP 00 Device safety Design and testing according to EN 61010 1994 Protection class Overvoltage category Degree of contamination 2 Noise emission EN 61000 6 3 N
16. So far WE had to be assigned manually to input IN2 The parameter Y PRE has been added to the PAR function This parameter determines the rate action of the output signal see section 3 1 2 EB 6493 1 EN Contents 1 2 2 1 2 2 2 3 2 4 2 5 2 6 2 7 3 4 8 3 5 1 3 5 2 3 5 3 3 5 4 Contents n PDC TT 5 Operation 6 Display a ea tT D 6 Keys kk uh ouvre ROSE RS Roe e E a 7 Operating level uocem e y eX sodes 3 8 9 Key number dub 4 2er eed dra iced ee 10 Example for configuration and parameterization 12 TROVIS VIEW Configuration and Operator Interface 16 Functions of the compact controller 18 PAR Control parameters 1 18 IN Input funchions ECC 18 INT Input signal range INT 20 IN2 Input signal range IN2 20 MEAS Measuring range monitoring for analog input 1 and 2 21 MAN Changeover to manual mode upon transmitter failure 21 CLAS Assignment of X and WE 22 DI FI Filtering of input variable X WE 22 SQRRootextraction se cresa receret temi 23 FUNC Function generation of X and WE 23 SETP Reference 25 at oo ttc E bb P HE Sra gus 27
17. between outdoor temperature and required flow temperature is given in the table below The resulting characteristic serves as external reference variable The Type 6493 01 Compact Controller controls the valve via a three step signal with internal position feedback Fig 21 Temperature control with function generation Proceed as follows The controlled variable X represents the flow temperature which is measured by a two wire transmitter In controller version 6493 01 two wire transmitters can only be connected to the input In1 This input is adjusted to 4 to 20 mA by default i e it does not need to be changed However you have to adjust the measuring range for this input to a range of 0 to 150 C Additionally you must assign the controlled variable X to input In1 The outdoor temperature is represented by the external reference variable WE and applied to the input In2 This input is already set up for Pt 100 sensors by default The measuring range is also fixed Nevertheless you have to assign WE to input In2 By default WE is not activated Set the measuring range for the internal reference variable W to 0 to 150 C as well In operating level you may choose between W and WE When selecting WE as active reference variable follow up control is implemented automatically Define the relationship between outdoor temperature and flow temperature in the main group IN with the function FUNC and WE in the parameter level ta
18. range of the parameters and factory defaults can be found in Appendix A 3 1 PAR Control parameters This main group serves a special purpose In contrast to all other main groups it does not in clude any functions When you open this level the controller immediately jumps to the parame ter level where the control parameters Kp Tn Tv and Y PRE can be set This main group allows you to quickly set the control parameters You may also adjust the same settings in the main group CNTR with the C PID function 3 2 IN Input functions This main group defines all the functions of the two analog inputs In1 and In2 You may specify the input signal range and assign the analog inputs to the controlled variable X or the external reference variable WE In addition you can determine the measuring range of both signals You may also perform measuring range monitoring Moreover the input signal can be filtered or functions may be generated from it 18 6493 1 EN Functions of the compact controller SV3W Bu ZN ON bcelewn zwi xIoNnd x os xliria xlsvio pz e e x A 4 3 X UN BwbN ld l pwos Mia am uw 5 e e Ud IM BA 26 uopuny
19. we will explain which parameters are relevant for which out put so that you only need to define the ones you require Note On switching over from automatic to manual mode the relays of the two step and three step outputs are deactivated In manual mode and with the Y reading at the bottom of the display the relay outputs can be activated using the V and A keys EB 6493 1 EN 41 Functions of the compact controller Two step output The two step output can only assume two states on 1 or off 0 This controller output is used for applications such as electric radiators with thermostat behavior This version of the two step output corresponds with a monitoring of the limit value violation by the The parameters dead band TZ and XSDY determine the switch on and switch off point of the two step output The parameter XSDY represents the differential gap and is used to prevent the two step output from constantly switching on and off upon small deviations The electrical wiring is the same as for the binary output see section 7 The two step output with pulse pause modulation PPM is described on page 45 Parameters to be set XSDY Differential gap e g 0 2 2 TZ Dead band Switching point 0 1 100 0 XSDY Y A Y TZ Fig 12 Two step output 42 6493 1 EN Functions of the compact controller Three step output wit
20. 0 1 1 0 ADAP run ADP S Start adaption TN Reset time 1 0 9999 s 120 0 TV Derivative action time 1 0 9999 s 1 0 Y JMP Step response value 100 100 0 20 0 View process data ro CIN FIR i View firmware version p 58 S No View serial number p 58 ANA View value of analog input 1 p 58 IS ill IN2 2 View value of analog input 2 a View value of contr var before function generation WE VA 2 View value of ref var before function generation FE CO x View value of WE before applying feedforward con SRECO trol YPID View value of reference variable at comparator 10 0 110 0 YOUT View value of Y after limitation View value of controller output after mathematical adaption Your BIN 4 Status binary input p 59 BOI Status binary output BO2 Status binary output BO2 ADJ Ad INI u Adjustment analog input IN1 p 59 10 0 110 0 IN2 Adjustment analog input IN2 YOUT Adjustment analog output Y 1 All functions and parameters can be read without the key number Only when changing functions or parameters for the first time you are prompted to enter the key number 2 94 6493 1 EN Range of values is identical to that of the assigned input 3 4 Decimal place depends on the DP function main group AUX The parameter values in brackets only apply to controller version 6493 02 6493 1 EN 95 Appendix B Appendix B Error messages
21. A 3 Limit relay L2 active Not displayed 4 Three step output Not displayed 5 Limit relay L1 active Not displayed 6 Three step output or two step output displayed 7 Alarm messages see section 3 2 3 Not displayed 8 Hand icon displayed in manual mode Not displayed No icon in automatic mode 9 Pras the 3 key to display W W2 Y and are used for minimum and WE or Xd in sequence The asso maximum values of different parame ciated value appears in 2 ters W2 and WE only when they have been activated see section 3 3 1 10 Bar graph display of Xd in percent Not displayed 6 EB 6493 1 EN 2 2 Keys Operation The compact controller is operated using six keys whose function depends on the selected level Key Function in operating level Function in setup level Enter key a Provides access to setup level Activates a new reference variable if its icon W W2 or WE blinks in the display 9 Activates functions and parameters to be changed display blinks Confirms new settings of functions or parameters display stops blink ing Selector key Switches lower display section be tween W internal reference variable 1 W2 internal reference variable 2 WE external reference variable Y continuous output variable Xd Only when selected see p 27 error Provides access to parameter level Jump within the value range in pa rameter level Manual auto
22. SEEN un ee ee 28 CNTR Controller structure and functions 29 C PID Dynamic behavior of controller output 29 SIGN Inversion of error Xd 31 D PID Assignment of controller output D element 31 CH CA Control mode changeover P D PI D control 32 M ADJ Operating point adjustment in manual mode for Yppp 33 DIRE Operating direction of output variable 33 F FOR Feedforward control 33 AC VA Increase decrease of actual value 222 0 34 Output functions 2 0 ace uw RR 35 SAFE Initialization of constant output value YIK1 for YPD 35 MA AU Manual automatic changeover 35 Y LIM Output signal limitation YPID 37 RAMP Output ramp or limitation of rate of output changes YPID 37 EB 6493 1 EN 3 Contents 3 9 5 4 1 4 2 4 3 5 1 5 2 5 3 5 4 4 6493 1 EN BLOC Locking of output signal 39 FUNC Function generation of output variable 39 Y VA Output signal range son Bra 39 Y SRC Assignment of continuous action output 40 CALC Mathematical adaption of continuous output AO C OUT Configuration of two step or three step Al B OUT Configuration of binary outputs BOT 2 50 ALRM Alarm functions 2
23. be prompted to enter the key number Proceed as follows Press Reading on display Comment KEY blinks Enter the key number Skip the next step for operation without key number Note If the reading on the display looks like this the key number can always be changed see next section A KEY blinks or Enter the valid key number In this ex v ample it is 12 If you have entered the correct key number the selected function blinks in the display If not you are prompted to enter the key number again with 1 ap pearing in the upper display section This means that the controller operates with key number Enter the key number again or cancel by pressing the return key l Changing the key number You may define a new key number or set up the controller to operate without key number When defining a new key number you need to know the service key number which is to be found on page 104 To prevent misuse you should cut it out or make it unreadable Proceed as follows to define a new key number 10 EB 6493 1 EN Press Reading on display Operation Comment You are in operating level The reading on the display looks like this KEY blinks Note If the reading on the display looks like this the key number can always be changed KEY blinks Enter the service key number See page 104 You have confirmed the service key num ber You now see KEYP w
24. direction 31 output 33 Operating level 7 8 Operating point adjustment in manual mode TEE 33 Operation 6 17 Operator key disable 54 Output configuration 35 50 Output ramp 37 Output signal limitation 37 Output signal 39 P Pcontroller 29 1 29 PD controller 29 29 PID 29 Power failure restart conditions 53 Power frequency 55 Proportional action coefficient KP 31 et 20 vos P REL 20 R Reference variable aclivdle 27 Enge ee 8 changeover 8 29 25 29 internal e 25 29 EB 6493 1 EN 103 Index Reference variable 28 T Reset ime 3 Return 7 Technical data 74 76 Root extraction 23 Three step output configuration Al S with external position feedback 43 7 with internal position feedback 43 6 79 with
25. in C K1 X to KZ X 20 0 10 0 0 0 10 0 20 0 30 0 40 0 tyin C KI Xto K7 X 100 0 90 0 85 0 75 0 60 0 55 0 50 0 Select a three step signal with internal position feedback as output 6493 1 EN 63 Practical examples The following table lists the required settings Setup level Main group Function Setting Parameter Value Comment CO PA IN CO 4 20 mA MINI 0 0 C Define measuring INT default INI 150 0 C range for input 1 tv CO X In Assign controlled vari CLAS able X tv to input In1 WE 2 Assign external refer ence variable WE tA to input In2 CO WE on MIN 0 0 C Activate function gen FUNC MAX 150 00 C eration for WE K1 X 20 0 C Define measuring K1 Y 100 0 C range for output K2 X 10 0 C signal tv obtained by K2 Y 90 0 C function generation K3 X 0 0 C Indicate 7 pairs of K3 Y 85 0 C values which deter 4 10 0 C mine the relationship KA Y 75 0 C between outdoor and K5 X 20 0 C flow temperature K5 Y 60 0 C K6 X 30 0 C K6 Y 55 0 C K7 X 40 0 C K7 Y 50 0 C SETP CO WE on Activate WE and SP VA follow up control with it W 25 C Define value for default WINT 0 C ternal variable W and AWINT 150 C measuring range of CNTR CO Pl factory 0 8 Specify control pa C PID default TN 16 0 rameters TV 6 0 64 EB 6493 1 EN Pract
26. the compact controller Press Display shows Comments e oFF You are leaving the parameter level ADP S L oFF blinks ADP S A run blinks ADP S 20 blinks Adaption is started In sequence status ADP S messages indicating the progress of the adaption are displayed in the upper sec tion End You have successfully completed start up ADP S adaption Canceling start up adaption Press Display shows Comments StoP You may cancel adaption at any time to ADP S modify the parameters Errors during start up adaption Press the enter key again to restart adap tion The following errors may appear in the display In addition the binary output is set for alarm messages Display shows Type of error Comments 30 Timeout gt 5h Adaptation is terminated after 5 hours ERR 31 Impossible to determine Adaptation cannot determine any parame ERR parameters ters 32 Xinput lt 0 or gt 100 Modify Y JMP ERR EB 6493 1 EN 57 Functions of the compact controller 33 Interferences too strong Increase Y JMP and check interferences ERR 34 Selected PID setting does Set P Pl or PID control in the C PID function ERR not allow adaption main group CNTR 35 Control signal in limit Modify Y JMP ERR 36 Disturbance Restart adaption ERR 3 9 1 O View process data This main group enables you to view different variables and data In addition you may adjust zero and span for the analog inputs I
27. to analog input INT Assignment of X INIX X assigned to analog input IN IN2 X X assigned to analog input IN2 Assignment of WE INI WE WE assigned to analog input IN IN2 WE WE assigned to analog input IN2 3 2 6 DI FI Filtering of input variable X and WE This function enables you to determine whether X and or WE are to be filtered The first order filter low pass filter or Pt behavior smooths the selected signals and suppresses input signal interferences of higher frequency The time constant of the Pt1 element is defined by the parameter TS X for the input signal X and by TS WE for the input signal WE The time constant is given in seconds Filtering of input variable X oFFX Filtering of input variable X deactivated on X Filtering of input variable X activated Filtering of input variable WE oFFWE Filtering of input variable WE deactivated on WE Filtering of input variable WE activated 22 6493 1 EN Functions of the compact controller Parameters to be set TS X _ Time constant X filter in seconds TS WE Time constant WE filter in seconds 3 2 7 SQR Root extraction This function enables you to root extract the signals X as well as WE Thus you may easily cal culate the flow rate from a differential pressure for example Choose between Root extraction X oFF X No root extraction of signal X on X Root extraction of X Root extraction WE oFF WE root extraction of signal WE on WE Root extraction of WE
28. 0 mA 0 20 mA output 4 20 mA 4 20 mA output 6493 1 EN 39 Functions of the compact controller 3 5 8 Y SRC Assignment of continuous action output This function enables you to determine whether the continuous action output is used as control ler output PID output or assigned to the inputs X or WE or to error Optionally the signals can then be transferred to a recorder The Y XD setting allows the error XD in the range 0 to 100 to be issued at the output If the range 100 to 100 is to be issued at the output the CALC mathematical adaption must be activated on CA Y and the parameters must be set as follows CA K1 100 0 CA K2 0 5 CA K3 100 0 on Y PID Assignment to PID output on Y X to X input on Y WE to WE input for feedforward control on Y XD to error Xd 3 5 9 CALC Mathematical adaption of continuous output This function enables you to mathematically modify the continuous action output to set it up for a recorder for example The following formula applies YOUT CA K1 CA K2 oFF CA Y Mathematical adaptation deactivated Note No output signal POS CA Y Mathematical adaptation with positive sign Y CA K1 CA K2 CA K3 Whereby Y CA K1 gt 0 applies CA Y Mathematical adaptation with negative sign Y CA K1 CA K2 CA K3 Whereby Y CA K1 gt 0 applies on CA Y Mathematical adaptation without condition Y CA K1 CA K2 CA K3 Parameters to b
29. 38 6493 1 EN Functions of the compact controller 3 5 5 BLOC Locking of output signal This function locks the output signal upon activation of the binary input As a result cur rent value of the output variable at the controller output remains unchanged as long as the bi nary input is active When it is deactivated the locking of the output signal will be canceled and the controller continues to work with the last output value calculated Choose between oFF BL YP No locking of output signal via binary input factory default bil BL YP Locking of output signal via binary input Note Several functions can be assigned to the binary output 3 5 6 FUNC Function generation of output variable Functions may be generated of the output variable as well as of the input variables X and WE We do not go into any further details here as function generation is dealt with in section 3 2 8 However make sure to enter the pairs of values in percent The parameters MIN and MAX are preset 10 and 110 and cannot be changed Choose between oFF FU YP No function generation of output variable on FU YP Function generation of output variable Parameters to be set K1 X to K7 X Input values for points 1 to 7 in K1 Y to K7 Y Output values for points 1 to 7 in 3 5 7 Y VA Output signal range This function enables you to define the range of the continuous action output oFF Y No continuous action output 0 2
30. 51 LIMI Limit relay Ll 52 UM Limit relay L2 csse or te Rte 52 AUX Additional functions o 53 RE CO Restart conditions after power 53 ST IN Resetting to factory 54 KEYL Operator 54 VIEW Setting of display 54 FREQ Power frequency ooa a 55 DP Decimal place setting 55 TUNE Start up adaption a a 55 ADAP Start up adaption a a 55 l O View process data 58 CIN Firmware 24 2 um a ARR ee ee ee wes 58 S No Serial number 2222 ee ee ee 58 ANA View values of analog inputs 2 58 BIN Status of binary input and 59 ADJ Adjusting the analog inputs and output 59 Practical examples 2 2 lolo lees 61 Fixed set point control 61 62 Follow up control with function generation 64 Star p iso uos ete doe RU ue a dex Me Rite Se 67 acie ud 0 CADRE HUS e ACC ae EO TS UR 67 ee 6a E RU ERE S 67 68 u 4 6 anche ee gt doe ee 68 Installation 22 45 95 8 ee E6565 70 Electrical connections 72 Technical data od
31. A YP Limitation for decreasing ramp p 37 CO oFFBLYP oF FBLYP Locking of output signal off noPA BLOC BL YP No parameters BLOC bil BLY via binary input Bl oFFFUYP oFFFU YP Function generation of controller output off 39 FUNC FU YP KI X Input value point 1 X values K1 X 0 0 FUNC on FU YP on K1 Y Output value point 1 10 0 110 0 0 0 K2 X Input value point 2 0 0 K2 Y Output value point 2 Y values K1 Y 0 0 K3 X Input value point 3 10 0 110 0 0 0 K3 Y Output value point 3 0 0 K4 X Input value point 4 0 0 KA Y Output value point 4 0 0 K5 X Input value point 5 0 0 K5 Y Output value point 5 0 0 K6 X Input value point 6 0 0 K6 Y Output value point 6 0 0 K7 X Input value point 7 0 0 K7 Y Output value point 7 0 0 CO 4 20 0 20 Output signal range to 20 mA p 39 no PA Y VA Y No parameters Y VA 4 20 mA 4 20 mA no PA Y VA mA oFF Y No continuous action output PA Y VA mA 1 All functions and parameters can be read without the key number Only when changing functions 3 Decimal place depends on the DP function main group AUX or parameters for the first time you are prompted to enter the key number 4 Range of values is identical to that of the assigned input 86 6493 1 EN The parameter values in brackets only apply to controller version 6493 02 6493 1 EN 87 Appendix A Appendix A Main Function Displayed KEY Setting
32. Appendix A lists all functions and parameters provided by the compact controller The table in cludes the main groups and their functions with the setting options in the left column and the as sociated parameters in the right column This table will considerably facilitate learning how to operate the controller You only have to keep the following in mind To move from left to right in columns press To move in the reverse direction from right to Ich use the return key t The key number KEY must be entered in setup level only when a function or parameter is changed for the first time The right column of the table i e the parameters can be accessed by pressing the selector key Again press the enter key to move A in columns To move in rows from top to bottom ress To move in reverse direction press iv costes new settings or the new value by pressing example in section 2 6 illustrates how to configure and parameterize the controller prop erly Note The display changes from setup level to operating level after 5 minutes when no key is pres sed 6493 1 EN 9 Operation 2 5 Key number You are prompted to enter the key number when you want to change the settings of functions and parameters The compact controller can be operated with or without a key number Factory default is without key number Each time you wish to change a function or parameter in the setup level for the first time you will
33. Automation System TROVIS 6400 Compact Controller TROVIS 6493 Samson Mounting and Operating Instructions EB 6493 1 EN Firmware version 2 03 and 3 03 C Edition February 2002 Firmware versions 2 03 and 3 03 Modifications of firmware versions 2 03 and 3 03 The latest version of the TROVIS 6493 Compact Controller is equipped with an infrared inter face Apart from setting and operating the controller using the operator keys on the front panel the integrated infrared interface allows you to configure parameterize and operate the control ler using the TROVIS VIEW Configuration and Operator Interface The software for both compact controller versions has been upgraded 6493 01 Firmware version 2 03 6493 02 Firmware version 3 03 The measuring range of the reference variable WINT WINT is adapted automatically to the previously determined measuring range of the controlled variable X INT AINT or N2 IN2 However changing the measuring range of the reference variable afterwards does not result in an automatic adaption of the measuring range of the controlled variable see section 3 3 1 Automatic adaption in the CLAS function see section 3 2 5 The CLAS function enables you to assign the signals X and WE to the analog inputs INT and IN2 By default X is assigned to input IN2 WE is assigned to input INT If however X is as signed to input INT WE is automatically assigned to input IN2
34. Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default OUT CO onYPD Assignment of continuous action output p 40 no PA Y SRC Y PID No parameters Y SRC on Y PID to PID output no PA Y SRC Y X conti on Y X to X input no PA Y SRC Y WE nued on Y WE to WE input for feedforward control no PA Y SRC Y XD on Y XD to error Xd Mathematical adaption of controller output p 40 PA CALC CA Y Y CA KI CA K2 CA K3 CALC on CA Y without condition 1 Constant 0 0 100 0 0 0 oFF CA Y deactivated no output signal CA K2 Constant 0 0 10 0 1 1 0 POS CA Y with positive sign CA K3 Constant 10 0 110 0 0 0 6 with negative sign CO 2 3 5 oFF2 3 5 Configuration of two step or three step output off 41 C OUT 2 3 S Gain for BO1 0 1 100 0 1 1 0 C OUT on 2 STP Two step output C OUT Z STP 2 Gain for BO2 0 1 100 0 1 1 0 i Fb 3 STP Three step output with internal position feedback COUT 3 STP Duty cycle for BO1 0 1 9999 s 10 0 E Fb 3 STP Three step output with external position feedback COUT 3 STP TYL2 Duty cycle for BO2 0 1 9999 s 10 0 PP 2 STP Two step output with pulse pause modulation PPM COUT 2 STP Minimum on time of BOI 0 1 TYL1 1 0 i PP 3 STP output with interna
35. E F F 23 Electrical connections 71 EB 6493 1 EN Electrical connections Voltage output for Binary output transmitter supply i Binary input 81 82 14 15 14 15 81 82 RED Terminal example with internal supply 24V 20 V max 25 mA Terminal example with external supply Note The transmitter supply can only be used for one two wire transmitter at IN1 or Binary output for at IN2 or for the supply of the binary input Continuous output alarms Bl 4 0 to 20 mA Ag Power supply 31 32 83 84 NIL 3 50 V DC LEES max 30 mA N L Switching outputs imi Three step output Binary outputs Limit relays p of 3 42 43 41 42 43 51 52 53 41 42 43 51 52 53 41 42 43 51 52 53 BO2 LIMI LIM2 Floating contacts Fig 24 Electrical connections continued 72 6493 1 EN 8 Technical data Technical data Inputs Analog input 1 Analog input 2 two controller versions Two analog inputs optionally for controlled vari able X or reference variable W 0 4 to 20 mA o
36. E INIT appears on the display 2 Use the cursor keys to select from the above listed settings All FUnC PArA AdJ 3 Press the enter key Selected settings are reset to factory defaults When resetting is com pleted FrEE INIT is displayed again 3 7 3 KEYL Operator keys This function enables you to switch the function of the six keys via the binary input on and off or to disable the selector key the manual automatic key or the cursor keys oFF LOCK Operator keys enabled bil LOCK Enable disable all keys via the binary input on noH W Selector key manual automatic key and cursor keys disabled The compact controller remains in the operating mode effective before you activated this function Note Several functions can be assigned to the binary input 3 7 4 VIEW Setting of display contrast This function enables you to modify the display contrast from grade 1 to 10 This allows opti mum display illumination at the site of installation 1 is especially suitable for installation on high places whereas 10 suits low places of installation Choose between VIEW Contrast setting 1 to Contrast setting 10 54 EB 6493 1 EN Functions of the compact controller 3 7 5 FREQ Power frequency This function enables you to set the power frequency of the system to either 50 or 60 Hz Choose between on 50Hz Power frequency set to 50 Hz on 60Hz Power frequency set to 60 Hz 3 7 6 DP Decimal place setting Th
37. ER XR EGS 74 Dr c Cmm 101 Notes 1 Notes The TROVIS 6493 Compact Controller is a microprocessor based controller with a flexible soft ware design for the automation of industrial process plants It is suitable for single control loops as well as for more complex control tasks The flexible software design allows you to configure control circuits without changing the hardware The read only functions can be adapted to your specific plant configuration These Mounting and Operating Instructions EB describe the powerful features of the compact controller First we will explain how to operate the controller conveniently All functions and parameters are described in section 3 Section 4 provides some practical examples to show you which settings need to be adjusted for the specific cases of application In sections 6 and 7 the electrical connections and the installation are dealt with The index at the end of this EB gives you quick and direct reference in case you have specific questions or problems perienced personnel familiar with the product According to these mounting and operating instructions trained personnel re h fers to individuals who are able to judge the work they are assigned to and re cognize possible dangers due to their specialized training their knowledge and experience as well as their knowledge of the applicable standards The controller may only be installed started up or operated by trained and ex The
38. F LI Limit relay L1 deactivated p 52 Lo L1 X L1 activated when X is not reached PA LIM1 L1 X Limit for X MINI XINI 500 0 Hi L1 X L1 activated when X is exceeded or MIN2 AIN2 100 0 Lo L1 WE activated when WE is not reached PA LIM1 L1 WE Limit for WE MINI 1 100 0 Hi L1 WE activated when WE is exceeded or MIN2 AIN2 Lo L1 YP activated when Y is not reached PA LIM1 L1 YP LI YP Limit for YPID YY A Y 100 0 Hi L1 YP activated when Y is exceeded Lo L1 XD L1 activated when XD is not reached PA LIM1 L1 XD LI XD Limit for XD 110 110 0 0 0 activated when XD is exceeded AbSLI XD LI activated when amount of XD is exceeded L HYS Differenial gap 0 10 100 0 0 5 ofFl2 Limit relay L2 deactivated p 52 LIM2 Lo L2 X L2 activated when X is not reached PA LIM2 L2 X L X Limit for X MINI AINI 500 0 Hi L2 X L2 activated when X is exceeded or MIN2 AIN2 100 0 Lo L2 WE L2 activated when WE is not reached PA LIM2 L2 WE Limit for WE MIN1 AINI 100 0 Hi L2 WE L2 activated when WE is exceeded or 2 AIN2 Lo L2 YP L2 activated when Y is not reached PA LIM2 L2 YP Limit for Ypo SWAY cca ZAN EG 110 0 Hi L2 YP L2 activated when Y is exceeded Lo L2 XD 12 activated when 4 XD is not reached PA LIM2 L2 XD L XD Limit for XD 110 110 0 25 0 0 Hi L2 XD L2 activated when XD is exceeded AbSL2 XD 12 activated when amoun
39. IN2 Y CO oFfFLOCK oFFIOCK Operator keys enabled p 54 noPA KEYL LOCK No parameters KEYL bil LOCK enable disable via Bl onnoH W Selector key manual automatic key and cursor keys disabled O6VIEW 06 VIEW Display contrast setting 6 p 54 noPA No parameters VIEW 07 VIEW Setting 7 08 VIEW Setting 8 09 VIEW Setting 9 10 VIEW Setting 10 01 VIEW Setting 1 02 VIEW Setting 2 03 VIEW Setting 3 04 VIEW Setting 4 05 VIEW Setting 5 CO on 50Hz on 50Hz Power frequency 50 Hz p99 noPA FREQ 50Hz No parameters FREQ on 60Hz 60 Hz CO on DPI on DPI One decimal place p 55 noPA DP1 No parameters DP on DP2 Two decimal places on DPO No decimal place 1 3 All functions and parameters can be read without the key number Only when changing functions or parameters for the first time you are prompted to enter the key number 2 92 6493 1 EN Range of values is identical to that of the assigned input 4 Decimal place depends on the DP function main group AUX The parameter values in brackets only apply to controller version 6493 02 6493 1 EN 93 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default Start up adaption TUNE CO oFFADPS oFFADP S Adaption off ADAP ADP S Proportional action coefficient 0 1 100
40. INT 0 0 RAMP without starting conditions absolute oFFCH SP oFFCH SP Changeover W W2 WE via off p 28 noPASP VA CH S No parameters CH SP W W2 WE via 202 CH SP W WZ2 BI 28 All functions and parameters can be read without the key number Only when changing functions 3 or parameters for the first time you are prompted to enter the key number Decimal place depends on the DP function main group AUX 4 2 Range of values is identical to that of the assigned input The parameter values in brackets only apply to controller version 6493 02 82 6493 1 EN 6493 1 EN 83 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default Control structure and functions CNT CO PICP YP 9 EM Dynamic behavior of controller output paz PA C PID CP YP Proportional action 0 1 100 0 1 1 0 C PID Pd CP YP PD coefficient Pld CP YP PID TN Reset time nc Is 120 BPIISPAYP TV Derivative action time 1 9999 s 10 Derivative action gain 0 10 10 00 1 1 00 Y PRE Y rate action 10 0 110 0 75 0 0 DZXD Dead band of error XD 0 0 110 0 25 0 0 MDZXD Limitation of XD min 110 ADZXD 110 0 ADZXD Limitation of XD max DZXD 110 25 110 0 CO d
41. Lower range value as absolute value A INI Upper range value as absolute value This function enables you to define the input signal type and range for the analog input In2 En ter the lower and upper range values as absolute values of the parameters you require Choose between 0 20 mA to 20 mA input 4 20 mA 4 to 20 mA input 20 6493 1 EN Functions of the compact controller Parameters to be set 32 Lower range value as absolute value A IN2 Upper range value as absolute value 3 2 3 MEAS Measuring range monitoring for analog input 1 and 2 This function enables you to define whether the measuring ranges of the analog inputs are to be monitored either for exceeding or falling below the measuring range Choose between oFF ME MO No measuring range monitoring In Measuring range monitoring of analog input IN1 In2 ME MO Measuring range monitoring of analog input IN ALL ME MO Measuring range monitoring of both analog inputs IN1 and IN2 When values exceed or fall below the measuring range this is signalized on the display by the alarm message icon The binary output is set for alarm messages In addition o1 blinks in the upper display section when values exceed the measuring range __u1 blinks when val ues fall below the measuring range of analog input 1 or of the analog inputs 1 and 2 When analog input 2 exceeds falls below the measuring range __02 or __u2 appears on the display Whenev
42. Mounting bracket 3 Control panel Panel cut out 45 0 x 92 98 mm 1 771003 3 622 0 0315 inch Fig 22 Installation with dimensions in mm inch 70 6493 1 EN Electrical connections 7 Electrical connections The compact controller has screw terminals suitable for lines up to 1 5 mm For electrical installation you are required to observe the VDE 0100 regulation and the regula tions applicable in the country of usage To avoid measurement errors or other faults use screened cables for the signal lines of the ana log and binary inputs running outside the switching cabinets Within the cabinets these signal lines have to be installed separately from the control and network lines with sufficient space be tween them Ground the cable screenings on one side in the neutral point of the measuring and control sys tem Input INT 40 20 m 0 2to 10V 40 20 Transmitter supply 11 12 13 11 12 13 12 13 wu geom Input IN2 version 6493 01 Pr 100 Pt 1000 Ni 100 Ni 1000 Oto1ka 17 19 20 17 19 20 Note The transmitter supply can only be i used for one two wire transmitter at IN1 or s 0 at IN2 or for the supply of the binary input Bl Input IN2 version 6493 02 4 0 to 20 mA Ato 20 mA Transmitter supply 19 20 19 20 hafs
43. N1 and IN2 as well as the analog output Y 3 9 1 CIN Firmware This menu indicates the firmware software version you are using FIR View firmware version 3 9 2 S No Serial number This menu indicates the serial number of your controller All controllers are assigned a unique serial number by the manufacturer View serial number 3 9 3 ANA View values of analog inputs This menu enables you to view the values of analog variables Also note Fig 2 on page 19 Fig 4 on page 26 Fig 6 on page 30 and Fig 9 on page 36 There you will find the displayed variables illustrated INT Analog input 1 absolute value IN2 Analog input 2 absolute value Controlled variable before function generation has been performed WE VA Reference variable before function generation has been performed FE CO WE prior to applying feedforward control when using WE for feedforward control i e parameter SP VA set to FO2 WE in the main group SETP WE is not displayed in operating level SP CO Reference variable at the comparator YPID YPID after limitation YOUT Controller output after mathematical adaptation Your 58 6493 1 EN Functions of the compact controller 3 9 4 BIN Status of binary input and outputs This menu indicates the respective status of the binary input and outputs Status of binary input on oFF Status of binary output on oFF BO2 Status of binary output BO2 on oFF 3 9 5 ADJ Adjusting the
44. PA IN2 KOHM CO 4 20 mA 4 20 mA Input signal range IN2 4 20 mA p 20 PA INT mA IN2 Lower range value 999 IN2 IN2 0 20 mA 0 20 mA PA INT mA AIN2 Upper range value IN2 9999 0 0 6493 02 absolute 100 0 CO oF F oFF ME MO Measuring range monitoring analog inputs off 21 noPA No parameters MEAS analog input 1 MEAS ME MO IN2 MEMO analog input 2 ALLME MO analog inputs 1 and 2 CO FAILoFF oFFFAIL Changeover to manual mode upon p 21 PA MAN FAIL YIKI Constant output value 10 0 110 0 10 0 MAN transmitter failure off FAIL with constant output value Y1K1 FO2 FAIL with last output value received CO IN2 X IN2 X Assignment of X to analog input IN2 noPA CLAS X No parameters CLAS INI X to analog input IN1 NI WE INIWE Assignment of WE to analog input IN1 27 CLAS WE IN2 WE to analog input IN2 1 All functions and parameters can be read without the key number Only when changing functions or parameters for the first time you are prompted to enter the key number 2 76 6493 1 EN Range of values is identical to that of the assigned input 3 4 Decimal place depends on the DP function main group AUX The parameter values in brackets only apply to controller version 6493 02 EB 6493 1 EN 77 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Detai
45. analog inputs and output This function enables you to adjust zero and span for the analog inputs and the analog output Proceed as follows You are in the main group and have selected ADJ 1 Press the enter key ADJ INT is displayed 2 Select the respective input or output using the cursor keys AdJIN1 Adjust analog input IN1 AdJIN2 Adjust analog input IN2 AdJY1 Adjust analog output Y Press the enter key You are prompted to enter the key number Enter the key number via the cursor keys Confirm with the enter key Adjust desired signal to the lower range value using a high precision meter In the adjustment section of the display ZERO and INT IN2 or Y1 are displayed alternately N Press the enter key Zero adjustment is completed The display shows 0 0 and ZERO 8 Adjust the desired signal to the upper range value using a high precision meter In the adjustment section of the display SPAN and IN1 IN2 or Y1 are displayed alternately 9 Press the enter key Span adjustment is completed The display stops blinking and shows 100 0 and SPAN 10 Press the return key once Continue with step 2 if you wish to adjust additional inputs or the output The key number does not need to be entered again 6493 1 EN 59 Practical examples 4 Practical examples In this section we will show you how to configure your TROVIS 6493 Compact Controller to im plement fixed set point control follow up contro
46. controller does not consider changes in the disturbance or the reference variable Choose between F01 DP YP Assignment of controller output D element to error F02 DP YP Assignment of controller output D element to controlled variable 6493 1 31 Functions of the compact controller 3 4 4 CH CA Control mode changeover P D PI D control Control mode changeover enables the compact controller to be operated under varying operat ing conditions with different dynamic behaviors according to the control algorithm Gen PID erally control mode change over is only useful when a con trol action with component has been selected see section 3 4 1 The control mode changeover function activates either P or PID gt PD or PI PID control de pending on the error or refer ence variable W e PI D Fig 7 Control mode changeover Beyond the definable range of the reference variable or er ror the parameters for P or PD control are used to operate the controller Within this definable range the component is included The range is defined by the parameters CLI P and CLI M as illustrated in Fig 7 Special feature of CC P setting If the controller changes from manual to automatic mode while the error is outside the defined range the operating point is determined by the last manual output value The operating point applies until the error retur
47. controller has been designed for use in electrical power systems For wi ring and maintenance you are required to observe the relevant safety regula fions Proper shipping and appropriate storage are assumed 6493 1 EN 5 Operation 2 Operation The TROVIS 6493 Compact Controller can be operated either directly using the keys on the front panel or using the TROVIS VIEW Configuration and Operator Interface see section 2 7 for configuration parameterization and operation In the following we will explain how to operate the controller with the keys on the front panel First open the folded back cover of this EB There is the controller s front panel with its display and six keys Principally there are two levels which provide different key functions and different displays the operating level and the setup level You may define the functions of the compact controller via configuration and parameterization A table listing all details required for parameterization and configuration is provided in Appendix A In addition we will explain how to configure and parameterize using this table in section 2 6 2 1 Display Depending on the selected level the display shows the following variables and operating states see folded back cover No Operating level Setup level 1 Controlled variable X Designations settings and values of functions parameters abbreviations 2 e m by W W2 are listed in Appendix
48. ctive W W2 and or WE When you activate WE follow up control will automatically be effective unless you use WE as input for the position transmission of a three step output with external position feedback WE or for feedforward control FO2 WE Parameter level allows you to define the desired value of the reference variable W W2 and its measuring range WINT WINT This range must be identical to the measuring range of the controlled variable INT INT or IN2 IN2 You may limit this measuring range with the parameters WRAN and WRAN The value of the reference variable can only be chosen between WRAN and WRAN This also applies in operating level Choose between Internal reference variable W onW Internal reference variable W always active Parameters to be set W Internal reference variable W WINT Lower range value for W W2 WE A WINT Upper range value for W W2 WE WRAN Limitation of W W2 WE lower limit WRAN Limitation of W W2 WE upper limit Internal reference variable W2 oFF W2 Internal reference variable W2 not active on W2 Internal reference variable W2 active Parameter to be set W2 Internal reference variable W2 External reference variable WE oFF WE External reference variable not active WE External reference variable active WE WE as input for external position feedback with three step output FO2 WE WE as input for feedforward control in this case WE i
49. ded Parameters to be set Limit for X as absolute value LIWE Limit for WE as absolute value LLYP Limit for in LI XD Limit for XD in LHYS Differential gap in based on measuring range 3 6 2 LIM2 Limit relay L2 This function enables you to define the functions of limit relay L2 described in section 3 6 Note Functions of the two step or three step output C OUT see section 3 5 10 and functions of the binary outputs B OUT see section 3 5 11 have priority over the settings of the functions and LIM2 52 EB 6493 1 EN Functions of the compact controller Choose between Limit relay L2 oFFL2 Limit relay L2 deactivated Lo L2 X L2 activated when X is not reached Hi L2 X L2 activated when X is exceeded Lo L2 WE L2 activated when WE is not reached Hi L2 WE L2 activated when WE is exceeded Lo L2 YP L2 activated when is not reached Hi L2 YP L2 activated when Ypip is exceeded Lo 12 Limit relay L2 activated when XD is not reached Hi L2 XD L2 activated when XD is exceeded AbSI2XD L2 activated when the value of XD is exceeded Parameters to be set Limit for X as absolute value LIWE Limit for WE as absolute value LLYP Limit for in Limit for X in LHYS Differential gap in based on measuring range 3 7 AUX Additional functions This main group enables you to determine the restart conditions after a power failure has oc curred You ma
50. e depends on the DP function main group AUXI 2 Range of values is identical to that of the assigned input The parameter values in brackets only apply to controller version 6493 02 84 6493 1 EN EB 6493 1 EN 85 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default Output functions OUT oFFSAVA oFFSA VA initialization of constant output value Y1K1 for off 35 PA SAFE SA VA YIKI Constant output value 10 0 110 25 10 0 SAFE bil SA VA via binary input oFF oFFCH MA Manual automatic changeover off p 35 noPA No parameters MA AU bil CH MA via binary input BI35 MA AU CH MA CO onllYP onll YP Output signal limitation activated 97 PA Y LIM LI YP MY Minimum output variable 10 0 110 10 0 Y LIM RAY Maximum output variable 110 0 CO oFFRAYP oFFRAYP Output ramp or limitation of RAMP RA YP Transit time of ramp 1 9999 s 1 RAMP rate of output changes Y off Initial value for ramp 10 0 110 0 10 0 RA YP Increasing ramp starts with 10 via binary input FO2 RA YP Increasing decreasing ramp starts with YIRA via binary input RA YP Limitation for increasing and decreasing ramp 204 RA YP Limitation for increasing ramp 205 R
51. e first main group PAR Main groups are always displayed in a sin gle line You are now in the first column of the table in Appendix A Note If you press the enter key again you get to Kp see page 14 Press Reading on display Operation Comment repeatedly until CNTR appears on the display Browse through the main groups in the ta ble in Appendix A you move from top to bottom until you get to the main group CNTR Here you can adjust the dynamic behavior of the controller output m You have entered the main group CNTR moved to the right in table You have reached the functions Functions are always marked by CO for configuration The display shows the first function C PID Dynamic behavior of controller output In our case the function we were looking for You have moved one column further to the right You now see the current settings of the PI action function These settings are to be changed to PID action KEY blinks You are prompted to enter the key number KEY This prompt is displayed when you change a function for the first time after en tering the setup level You will not be prompted for subsequent changes Ifyou do not use a key number skip the next step Use the cursor keys to enter the key number In our example it is 27 6493 1 EN 13 Operation Press Reading on display Comment The display will look like this if you have en ter
52. e set Constant for formula given above CA K2 Constant for formula given above for continuous output adjust gt 0 CA K3 Constant for formula given above in 40 EB 6493 1 EN Functions of the compact controller 3 5 10C OUT Configuration of two step or three step output This function enables you to select a two step or three step u The active two step output is easily identified Bg icon For the three step output the kal icon indicates an active Y out put whereas the lslicon indicates an active Y output Note Selecting one of these settings has priority over the settings in the B OUT functions see secti on 3 5 11 as well as over LIM and LIM2 see section 3 6 When configuring a three step output the functions of the binary outputs or limit relays can not be used When configuring a two step output you may use the functions of the binary output BO2 or the limit relay L2 Choose between oFF 2 38 No two step or three step output on 2 STP Two step output i Fb 3 STP Three step output with internal position feedback E Fb 3 STP Three step output with external position feedback PP 2 STP Two step output with pulse pause modulation PPM i PP 3 STP Three step output with internal position feedback and PPM E PP 3 STP Three step output with external position feedback and PPM When accessing the parameter level all parameters available for output configuration are dis played On the following pages
53. e used to influence the actual value Finally you may define an operating point in manual mode which is then added to the calculated op erating point in automatic mode 3 4 1 C PID Dynamic behavior of controller output This function enables you to define a dynamic behavior for the compact controller according to the control algorithm Factory default is Pl action You can also set the control parameters Moreover you may define the dead band DZXD for the error the control signal does not change within this band In addition you can determine limits for the error using the parame ters DZXD and DZXD These minimum or maximum values of error are used for output signal calculation Choose between P P controller PI controller PD PD controller PID PID controller PPI 2 controller 6493 1 EN 29 Functions of the compact controller NOIS a 3 q ad Bs X T ur X VA DV Jo pse ey d x DIAV l 4033 anpa 19 0 lt Kanye AN 24 2724 X IDA 7 4 Je4uo p1o aojpee axei ax 1 x e J i Jour pueg M qur
54. ed around the operating point however without leaving the defined con trolled variable range If this should happen during adaptation the process is interrupted and Err 32 is displayed EB 6493 1 EN 55 Functions of the compact controller When start up adaption has been successfully completed the determined parameters become effective immediately The compact controller is in manual mode Now switch to automatic mode Choose between oFF ADP S run ADP S No adaption Launch start up adaption Parameter to be set Y JMP Value of step response in To run start up adaption proceed as follows The compact controller is in the operating level Press Display shows Comments E PAR You have accessed setup level v 2 TUNE You have reached the main group TUNE You have reached function for start up ADAP adaption oF F Start up adaption is not yet activated ADP S PA Enter parameter level first in order to define ADAP blinks the value for the step response 1 0 factory default KP KP TN TV are the same as in C PID ade 20 0 factory default Y JMP Parameter for the value of the step response KEY Prompted for key number if applicable If so proceed as described on p 10 Alor lvi display blinks Adjust the value of the step response 56 EB 6493 1 EN Confirm value of the step response The dis play stops blinking Functions of
55. ed the key number correctly If not you will be prompted again The upper line blinks meaning that you may change the settings of the function In the table you have moved one column further to the right and have reached Setting options The upper line blinks Use the cursor keys to select the desired set ting In our example it is Pld for PID action of the controller output Confirm changes with the enter key The up per line stops blinking The first part of the task is completed Now the control parameters KP TN and TV are to be changed To do so enter the pa rameter level Press the selector key to open the parameter level In the table you have jumped to the first column on the right page and are displayed alternately in the lower display line 14 EB 6493 1 EN The first parameter Kp is displayed Note You can go directly from the PAR dis play to this display by pressing the yellow enter key once You may only change the control parameters KP TN TV and Y PRE Press Reading on display Operation Comment KP blinks i e you can change this parame ter Enter a new value for KP In our example it is 1 5 The upper line continues to blink You have confirmed the new value for KP The upper line stops blinking The next parameter is displayed To change this and other parameters pro ceed as described for KP i e repeat the steps in the fields highli
56. enables you to define the output functions of the compact controller You may specify whether the compact controller operates with continuous action or switching output The output signal can be limited and ramps can be defined You can also output X WE or XD to the continuous output and transfer them to a recorder In addition mathematical adaptations can be made for the continuous action output The switching outputs can be used as binary outputs to signalize varying operating conditions The following functions can be assigned to the binary input in this main group locking of the output signal manual automatic changeover starting an output ramp or initializing the second output variable Y1K1 3 5 1 SAFE Initialization of constant output value Y1K1 for Ypip This function enables you to give out a predefined value for the output variable at the controller output if the binary input has been activated This output value is the parameter Y1K1 It is ad justed in percent in parameter level oFF SA VA Deactivated bil SA VA Initializing Y1K1 via binary input BI1 Parameter to be set Y1K1 Constant output value in Note Several functions can be assigned to the binary input 3 5 2 MA AU Manual automatic changeover When choosing the bil settings in this function the controller switches to manual mode upon ac tivation of the binary input and locks the manual automatic key When the binary input is deac tivated the controller switche
57. er the key number Range of values is identical to that of the assigned input EB 6493 1 EN 4 Decimal place depends on the DP function main group AUX The parameter values in brackets only apply to controller version 6493 02 6493 1 EN 79 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default IN oFF WE oFF WE Function generation of WE off p 23 PA FUNC WE MIN Output signal lower range value 999 9999 0 0 on WE on MAX Output signal upper range value absolute 100 0 con Input value point 1 0 0 tinued K1 Y Output value point 1 X values 0 0 K2 X Input value point 2 e g K1 X 0 0 K2 Y Output value point 2 MINI RINI 0 0 K3 X Input value point 3 or 0 0 K3 Y Output value point 3 YIN2 AIN2 0 0 4 Input value point 4 0 0 K4 Y Output value point 4 Y values 0 0 K5 X Input value point 5 e g K1 Y 0 0 K5 Y Output value point 5 MIN MAX 0 0 K X Input value point 6 0 0 K6 Y Output value point 6 0 0 K7 X Input value point 7 0 0 K7 Y Output value point 7 0 0 All functions parameters can be read without the key number Only when changing functions 3 or parameters for the first time you are prompted to enter the key number 2 80 6493 1 EN Range of values is identical to that of the assigned input 4
58. er values exceed or fall below the measuring range the compact controller can change to manual mode see section 3 2 4 3 2 4 MAN Changeover to manual mode upon transmitter failure This function enables you to define whether the controller switches to manual mode and which output value is generated when the measuring range is exceeded or not reached This function only becomes effective when measuring range monitoring has previously been activated in the MEAS function see previous section 3 2 3 Manual mode is easily recognizable by on the display Choose between oFF FAIL changeover to manual mode upon transmitter failure FAIL Changeover to manual mode with constant output value Y1K1 F02 FAIL Changeover to manual mode with last output value received Parameter to be set Y1K1 Constant output value 6493 1 21 Functions of the compact controller Note When values exceed or fall below the measuring range only becomes effective when the compact controller is in automatic mode The parameter Y1K1 can also be set in the main group OUT via the SAFE function as well as in the main group AUX via the RE CO function see sections 3 5 1 and 3 7 1 3 2 5 CLAS Assignment of X and WE Internally the compact controller operates with the analog input signals X and WE The CLAS function is used to assign these signals to the analog inputs IN1 or IN2 By default X is assigned to analog input IN2 and WE
59. ghted in gray repeatedly until the display looks like this You are back in the operating level S in dicates that the compact controller is in manual mode 6493 1 EN 15 Operation 2 7 TROVIS VIEW Configuration and Operator Interface The TROVIS 6493 Compact Controller can be configured parameterized and operated using SAMSON s TROVIS VIEW Configuration and Operator Interface via the infrared interface in tegrated in the front panel Operating TROVIS VIEW is similar to working in Windows Explorer Apart from configuration parameterization and operation TROVIS VIEW provides additional features to record the compact controller These are for example editing plant texts saving and printing various con figuration and parameterization data tabulating analog inputs and outputs as well as binary status reports The TROVIS VIEW software with the device specific module for the TROVIS 6493 Compact Controller is delivered on a CD ROM order no 6661 1031 For system requirements refer to the TROVIS VIEW Data Sheet T 6661 EN or to the readme txt file in the root directory of the CD ROM Communication between the PC and the compact controller is established via the infrared inter face integrated in the controller The IR interface can be accessed via the controller s front panel It is located to the left of the yellow enter key see Fig 1 An infrared adapter order no 8864 0900 is required to transfer data between
60. h internal position feedback For the three step output with internal position feedback the position of a valve is determined by the transit time of the connected actuator This transit time needs to be specified as parameter TY The output variable of the three step output can assume three values 100 0 and 100 This controller output is used e g for electric actuators the three output variables correspond ing to counterclockwise rotation motor switched off or clockwise rotation A definable dead band lies between both switching points The dead band is the parameter TZ see Fig 12 In addition you have to specify the parameter XSDY which represents the differential gap The differential gap applies to both switching points Note that the differential gap must always be smaller than E A comparator produces the difference between the signal and the feedback signal This difference constitutes the output value for the three step output The following applies When the difference is greater than 3 and larger than O the Y output is activated When the differential gap is greater than T and smaller than 0 the Y output is activated When the difference is smaller than T XSDY the three step output is deactivated When the Ypip value exceeds 105 or falls below 5 a permanent signal is issued at the controller output Parameters to be set XSDY Differential gap in e g 0 5 TZ Dead ba
61. he output signal The values are entered as absolute values i e in units of measurement comprehensible to the user e g in C bar or Even when the signal curve can be sufficiently characterized by less points 7 points must be specified If applicable they can be defined in the same position as the last point The parameters MIN and MAX are used to determine the measuring range of the output signal E It corresponds to that of signal E not function generated with reference to the output signal E By entering these two parameters a proper basis for the percentage calculation performed by the software is created IF K1 Y or do not agree with MIN and MAX the output values for the function generated signal which are below or above these limits are constantly set to K1 Y or K7 Y In doing so the compact controller completes the polygonal curve by generating straight lines see Fig 3 If you have entered an output value greater than MAX or smaller than MIN it will be set to the value of MAX or MIN You will find an application example for function generation in section 4 3 24 6493 1 EN Functions of the compact controller Note The course of the polygonal curve is not limited by the software Polygonal curves with more than one maximum or minimum are possible However make sure that you assign only one ordinate value to one abscissa value Otherwise you risk to lose clear assignment of the in put signal
62. hich stands for key number programming The upper dis play section shows the current key num ber The four dashes stand for without key number Enter the new key number for with out key number We have chosen 12 in this example 6493 1 EN 11 Operation Press Reading on display Comment You have confirmed the new key number and returned to the selected function or parameter In our example we have re turned to the Kp value 2 6 Example for configuration and parameterization We will use the Table of functions and parameters provided in Appendix A for this example The exercise consists of setting up the controller as a PID controller and adjusting the parameters accordingly The biggest problem is of course where to find the appropriate function and what to change in this function There are two ways to proceed You may search for the function in the table in Ap pendix A which also provides reference to further details Or you may refer to the index For the PID controller you will find the C PID function which belongs to the main group CNTR As you already know which main group is to be activated and which function is to changed pro ceed as follows Press Reading on display Comment You are in operating level The display reading will be similar to the one depicted here 12 6493 1 You have entered the setup level The dis play shows th
63. his output is illustrated in Fig 16 The position of the control valve is deter mined by the transit time of the connected actuator You can specify the transit time via the pa rameter TY The difference created from the signal and the feedback signal is con verted into a pulse sequence depending on the defined duty cycle The duty cycle can be de fined individually for the Y signal as well as the Y signal The parameter determines the duty cycle for the Y signal and the parameter TYL2 for the Y signal In addition you have to specify the minimum on time in percent of the duty cycle via the parameter TYL1 for Y signal and via TYL2 for the Y signal Due to the hardware the minimum on time is at least 0 3 s The dead band also needs to be defined via the parameter TZ The dead band must be specified in percent referred to the difference WE If necessary the parameters KPL1 and KPL2 pro viding a certain gain can be changed as well You can use them together with the parameters and TYL2 to adapt the connected actuator to different opening and closing times Parameters to be set Gain Y KPL2 Gain Y TYLI Duty cycle Y in s TYL2 Duty cycle Y in s Minimum on time Y in s TYL2 Minimum on time Y in s TZ Dead band of three step output in TY Transit time of actuator in s EB 6493 1 EN 47 Functions of the compact controller YR
64. ical examples Setup level Main group Function Setting Parameter Value Comment CO PA OUT CO 3 STP i FB XSDY 0 8 Define three step C OUT TZ 2 0 output with internal TY 90 0 s position feedback and appropriate parame lers Operating level Press selector key to view WE Press enter key Define WE as active reference variable 6493 1 EN 65 Start up 5 Start up When all the inputs and outputs as well as the power supply are connected the compact con troller must be adapted to the desired control task This means that you have to configure and parameterize the controller Appendix C contains a checklist to fill in the adjusted settings if you wish The compact controller must be adapted to the dynamic behavior of the controlled system via the parameters KP TN and TV to ensure that the system deviations caused by disturbances can be eliminated or largely suppressed There are two ways to adjust these parameters either via start up adaption see section 3 8 1 or via manual optimization The latter is described in the following sections We can only give general instructions If appropriate settings have not yet been determined for your controlled system proceed as follows Note Make sure the connected control valve is closed before you start manual optimization 1 Press manual automatic key 13 to switch to manual mode The icon is displayed 2 Use the cursor keys to change the out
65. ics eR mmm 35 locking of output 39 start output ramp 37 start the set point ramp 28 iei E 59 status indicated by binary output 50 Binary input transfer to manual mode 35 Binary outputs 50 for alarm messages 21 57 96 Stdl S s zin ene RE eS E E TEE 59 C Changeover to manual mode upon transmitter 21 Constant output value after power failure 53 initialization via binary 35 upon transmitter 21 102 6493 1 EN Continuous action output 40 mathematical adaption 40 Control mode changeover 32 Control 25 Control parameters 18 Cursor keyser in 2 7 31 Decimal place setting 55 Derivative action gain 31 Derivative action time TV 31 Dynamic behavior of controller output 29 Enter 7 Error messages 96 Error Xd ee 6 inversion 31 Errors during start up adaption 57 F Factory defaults resetting 54 Feedforward 33 22 Firmware ep eee Pe EXER 58 Fixed set point control
66. illate Increase the TV value until the oscillations are eliminated Increase the KP value until the oscillations appear again Increase the TV value until the oscillations are eliminated Repeat this procedure several times until the oscillations can no longer be suppressed Slightly decrease the KP and TV value to allow the controlled system to settle down Decrease the TN value until the controlled system tends to oscillate again Now increase the value again slightly so that the oscillations disappear EB 6493 1 EN 67 68 6493 1 EN Installation 6 Installation The TROVIS 6493 Compact Controller is a panel mounting unit with front dimensions of 48 mm x 96 mm To mount the controller proceed as follows 1 Make a control panel cut out with dimensions of 45 0 6 x 92 0 8 mm 2 Push the controller into the panel cut out so that its front panel goes through first e Insert the provided mounting brackets 2 into the remaining slots between the upper and lower edge of the controller front and the panel cut out see Fig 22 4 Screw the threaded rods towards the control panel using a screwdriver until the housing is clamped against the control panel 69 6493 1 EN Installation m i D Dp TS 00 5 Se 2 a IS z SI Lg B 7 0 59 C Depth with terminals 158 6 18 1 Compact controller 2
67. illations are eliminated 5 3 PD controller Enter KP 0 1 TV 1 and derivative action gain TVK1 1 Adjust the reference variable to the desired value in operating level Use the cursor keys to change the output variable to a value at which the control valve slowly opens and the error Xd becomes approximately zero Switch to automatic mode Increase the KP value until the controlled system tends to oscillate Increase the TV value until the oscillations are eliminated Increase the KP value until the oscillations appear again Increase the TV value further until the oscillations are eliminated Repeat this procedure several times until the oscillations can no longer be suppressed Slightly decrease the KP and TV values to allow the controlled system to settle down To eliminate the remaining system deviation proceed as follows switch to manual mode Change the output variable until the error Xd 0 Read the value displayed for the output variable and adjust the parameter Y PRE CNTR C PID to this value Note Each change of the reference variable also changes the operating point 5 4 PID controller Enter 0 1 TN 1999 and TV 1 Adjust the reference variable to the desired value Use the cursor keys to change the output variable to a value at which the control valve slowly opens and the error Xd becomes approximately zero Switch to automatic mode Increase the KP value until the controlled system tends to osc
68. ir d XD dir d XD Inversion error Xd without p 31 noPA SIGN XD No parameters SIGN in d XD With CO FOIDPRYP Assignment of controller output D element 31 D PID DP YP No parameters D PID DP YP to error F02 to controlled variable CO oFFCC P oFFCC P Control mode changeover P D PI D control off p 32 PA CH CA CC P Maximum limit 0 0 110 0 25 110 0 CH CA CC P via error CLI M Minimum limit for 110 0 0 75 110 F02 via reference variable PI D control GO oFFMA YP Operating point adjustment in manual mode for p 33 noPA No parameters M ADJ MA YP Yp M ADJ MA YP on MA YP off on CO dirdDLAC dir dDI AC Operating direction of output variable direct p 33 noPA DIRE DI AC No parameters DIRE in d DLAC _ inverted CO oFFFECO oFFFECO Feedforward control deactivated pace PA F FOR FECO WE FC K1 FC K2 FC K3 F FOR 5 with positive sign FC K1 Constant 0 0 110 0 0 0 FECO with negative sign FC K2 Constant 0 0 10 0 1 1 0 FC K3 Constant 10 0 110 0 75 0 0 CO oFFIN DE oFFIN DE Increase decrease of actual value deactivated p 34 PA AC VA IN DE AV KT Constant 110 110 0 25 0 0 AC VA bil IN DE via binary input Bl functions and parameters can be read without the key number Only when changing functions 3 or parameters for the first time you are prompted to enter the key number 4 Decimal plac
69. is function enables you to determine the number of decimal places for all variables directly re lated to the analog inputs In1 and In2 Choose between on No decimal place decimal place factory default on DP2 Two decimal places 3 8 TUNE Start up adaption This main group enables you to initiate a start up adaptation It works according to the inflec tional tangent principle which means that one unit step response is used to determine the inflec tional point the inflectional tangent as well as different characteristics The parameters Ty and Ty are calculated according to the rules for the aperiodic control op eration and a reference variable changeover introduced by Chien Hrones and Reswick For start up adaptation observe the following The controlled system must be stable Eliminate disturbance variables e g drifting The controlled system must be settled when beginning start up adaption Only adapt controlled systems with self regulation Adaption must be completed after 5 hours Note An adaption can only be performed with the analog control signal Y 3 8 1 ADAP Start up adaption The start up adaption is started when you select run ADP S The parameter Y JMP needs to be set before you start Its value is added to the output variable to determine the step response of the controlled system The step response can take place in both directions It should be as large as possible and locat
70. l and follow up control with function genera tion We assume you know how to operate the controller If not read section 2 Note that there are two controller versions due to the different inputs In2 4 1 Fixed set point control For this example we have chosen a simple temperature control loop as illustrated in Fig 19 The controlled variable X represents the flow temperature which is measured at the input IN2 TROVIS 6493 Z SN K pk Fig 19 Simple temperature control loop via a Pt 100 sensor The flow temperature is to be controlled to a fixed reference variable value The TROVIS 6493 01 Compact Controller issues a continuous 4 to 20 mA signal as output variable Y To per form this control task you only need to define the reference variable and the control pa rameters The reference vari able can be set directly in op erating level using the cursor keys The control parameters however must be defined in setup level in the main group CNTR All other required settings are configured in the compact controller by default The table below lists the settings you require Setup level Main group Function Setting Parameter Value Comment CO PA CNTR CO Pl factory KP 0 8 Define control parameter C PID default TN 16 0 CO DIRE dir d Change operating direc tion if necessary Operating level Use selector key to displa
71. l pos feedback PPM PA C OUT 3 STP MTYL2 Minimum on time of BO2 0 1 TYL2 1 0 3 STP Three step output with external pos feedback C OUT 3 STP XSDY Diff gap of 2 step 3 step 0 10 TZ 26 0 5 PPM output TZ Dead band 3 step output XSDY 100 0 2 0 TY Transit time 1 9999 s 60 CO oFFB BOI oFFB BOl Configuration binary output deactivated noPA OUT1 B BO1 No parameters B OUT Active when binary input activated FO2B BO1 Active when WE activated 203 Active in automatic mode oFFB BO2 oFFB BO2 Configuration binary output BO2 deactivated p 50 noPA OUT1 B BO2 No parameters 2 Active when binary input activated F02 B BO2 Active when WE activated 203 8 802 Active in automatic mode n All functions and parameters can be read without the key number Only when changing functions 3 Decimal place depends on the DP functi i AUX or parameters for the first time you are prompted to enter the key number 4 e ellen tals 2 The parameter values in brackets only apply to controller version 6493 02 Range of values is identical to that of the assigned input 88 6493 1 EN 6493 1 EN 89 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default Alarm functions CO OF
72. ls Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default IN CO on X Filtering of input variable PA DI FI X TS X Time constant of X filter 0 1 100 0 1 0 DI FI oFFX off s conti oFFWE oFFWE Filtering of input variable WE off 22 PA DI FI WE TS WE Time constant of WE filter 0 1 100 0 1 0 nued on WE on s CO oFF X Root extraction of input variable X off no PA SQR X SQR on X on oFF WE oFF WE Root extraction of input variable WE off p 23 no PA SQR WE on WE on ACO oFF X Function generation of X off p 23 PA FUNC X MIN Output signal lower range value 999 9999 0 0 FUNC on X on MAX Output signal upper range value absolute 100 0 Input value point 1 100 0 Output value point 1 X values 0 0 K2 X Input value point 2 e g K1 X 100 0 K2 Y Output value point 2 MINI RINI 0 0 K3 X Input value point 3 or 100 0 K3 Y Output value point 3 MIN2 AIN2 0 0 K4 X Input value point 4 100 0 Output value point 4 Y values 0 0 K5 X Input value point 5 e g K1 Y 100 0 K5 Y Output value point 5 MIN MAX 0 0 K6 X Input value point 6 100 0 K6 Y Output value point 6 0 0 K7 X Input value point 7 100 0 K7 Y Output value point 7 0 0 1 All functions and parameters can be read without the key number Only when changing functions 3 2 78 or parameters for the first time you are prompted to ent
73. mment CO PA IN CO 4 20 mA MINI 0 bar Define measuring INT factory XINI 10 bar range for input 1 WE fault assigned factory de fault 4 20 MIN2 0 bar Define measuring IN2 AIN2 10 bar range for input 2 X assigned factory de fault CO In2 factory Assign controlled vari CLAS default able X to input In2 In1 factory Assign reference vari default able to input In1 SETP CO on Activate WE and SP VA follow up control with it on factory 5 2 bar Value for internal default MWINT 0 bar variable W AWINT 10 bar Measuring range for CNTR CO Pld KP 0 8 Select PID action and C PID TN 16 0 specify control param TV 6 0 eters TVK1 1 0 CO dir d Change operating di DIRE rection if necessary Operating level Press selector key to view WE Press enter key 62 6493 1 EN Define WE as active reference variable Practical examples 4 3 Follow up control with function generation We will show you how to use Wex function generation exempli fying an outdoor tempera ts ture sensitive flow tempera ture control loop as illustrated gt in Fig 21 The controlled variable repre sents the flow temperature d The outdoor temperature is measured by a Pt 100 sensor and converted into a flow tem Flow temperature Outdoor temperature perature through function generation The relationship
74. nd of three step output e g 2 0 95 TY Transit time of actuator in seconds Three step output with external position feedback This type of three step output feeds back the position of a connected actuator externally via the WE input using for example a potentiometer Apart from that this three step output is similar to the three step output with internal position feedback When a potentiometer is used for external position feedback it needs to be calibrated as de scribed in section 3 9 5 6493 1 EN 43 Functions of the compact controller eg UM SON dm Y Y gt AY gt YR AY Y Y gt Ye XSDY TY Fig 13 Three step output with internal position feedback TZ XSDY Y gt WE Y Y gt XSDY Fig 14 Three step output with external position feedback 44 EB 6493 1 EN Functions of the compact controller Parameters to be set XSDY Differential gap of two step three step output in TZ Dead band of three step output in Two step output with pulse pause modulation PPM The two step output with pulse pause modulation PPM converts the continuous signal into a pulse sequence whose pulse pause ratio varies depending on the value see Fig 15 The on time Tg of the two step signal Y results from Y TZ i 100
75. ns to the range The operating point of PI D action is determined there If the error moves outside the range again the last output value is set as the operating point If the controller changes from automatic to manual mode the operating point required for the plant must be reset again before returning to the automatic mode The operating point is only saved temporarily Y PRE parameter does not have any effect After power failure the op erating point must be reset in manual mode Choose between oFF CC P No control mode changeover F01 CC P Control mode changeover activated by error F02 CC P Control mode changeover activated by reference variable Parameters to be set CL P Maximum limit for range of PI D control Minimum limit for range of control 32 6493 1 EN Functions of the compact controller 3 4 5 M ADJ Operating point adjustment in manual mode for Ypip This function enables you to activate operating point adjustment in manual mode In the factory defaults this option is deactivated To activate the operating point adjustment proceed as fol lows in manual mode adjust the output variable using the cursor keys to the desired value When switching to automatic mode the last value received is stored as operating point and added to the output variable calculated by the P or PD algorithm The stored operating point re mains effective until the operating point adjustment in manual mode is deactivated b
76. nt ramp starts with and actual value F02 RAMP Set point ramp starts with and F03 RAMP Set point ramp activated no starting conditions Parameters to be set TSRW Transit time of set point ramp in seconds WIRA Starting value of reference variable as absolute value 28 6493 1 EN Functions of the compact controller You can use the binary input to change between the internal and external reference variable Changeover of W via oFF CH SP No changeover between internal reference variable W W2 and external reference variable WE FO1 CH SP Changeover between active internal reference variable W W2 and external reference variable WE via binary input FO2 CH SP Changeover between internal reference variables W and W2 via binary input If W2 is active when setting the binary input no function will be performed The function CO SP VA may not be set to ON for WE Note Several functions may be assigned to the binary input 3 4 CNTR Controller structure and functions This main group enables you to determine the functions for the control algorithm You may de fine the dynamic behavior of the controller output the operating direction of the error and the output variable In addition you may select the input variable for the D element and set a con trol mode changeover If you use the input WE for feedforward control you moy link this signal to parameters Optionally the binary input can b
77. oise immunity EN 61000 6 2 2006 Electrical Supply voltage and connection process signals 1 5 mm screw terminals Total delay time 100 ms Resolution Input 0 1 C 0 1 Dimensions See dimensions diagram Weight Approx 0 5 kg 74 6493 1 EN Appendix A Appendix Table of functions and parameters Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default Control parameter PAR Press enter key only once to get to Kp p 18 KP Proportional action coefficient 0 1 100 0 1 1 0 TN Reset time 1 9999 s 120 TV Derivative action time 1 9999 s 10 Y PRE Y rate action 10 110 0 5 0 0 Input functions IN CO 4 20mA 4 20 mA Input signal range INI 4 20 mA p 20 PA INT mA Lower range value 999 A INT 0 0 INT 0 10 V 0 10 V PA IN1 mA A INI Upper range value IN1 9999 100 0 2 10 V 2 10V PA IN1 V absolute 0 20 mA 0 20 mA PA INT V CO 100PT 100 PT Input signal range IN2 Pt 100 100 500 20 PA IN2 PT IN2 Lower range value 999 IN2 100 IN2 1000 Pt 1000 100 500 C PA IN2 PT 2 Upper range value 1 2 9999 500 100 NI Ni 100 60 250 C PA IN2 NI absolute 6493 01 1000 NI Ni 1000 60 250 C PA IN2 NI 0 1 KOHM 0 to 10000
78. onitor variables as to whether they exceed or fall below a limit value The limit relay can assume two switching states When the switching condition is fulfilled the limit relay is closed if not it is open The functions and LIM2 determine which variable will be monitored by the limit relay L1 or L2 and also whether the limit relay becomes active when Above Below limit values are exceeded or not reached L1 The limit value of the selected epu variable is defined parame ter level via LI WE LI YPID or LI XD In addition ol you have to set the parameter tas e X Leys H XM L HYS to define differential Us gap hysteresis The differen tial gap is the distance be tween the points where the Fig 18 Function of the limit relays L1 and L2 limit relay switches on and off It is given in percent referred to the measuring range Fig 18 illustrates the function of the limit relay exemplifying the monitoring of the controlled variable X with the associated parameters First case the limit relay monitors the controlled variable for exceeding a preset limit The limit relay is activated when the controlled variable X increases and reaches the preset limit LI X LI WE LI YPID or LI XD When the controlled variable decreases and reaches the preset limit mi nus the differential gap L HYS the limit relay is deactivated Note that LI X and
79. pulse pause modulation 47 E MC M Be IN eed RR bed See we 31 Start up adaption 55 57 Transmitter failure changeover to manual mode 21 TROVIS VIEW 16 TVs ant 31 Two step 42 configuration 41 with pulse pause 45 Y Y rate action 31 Service key number 1732 104 6493 1 EN UN gt 10 16 Controlled variable Value of W W2 WE Y or Xd Limit relay L2 active Three point output Limit relay L1 active Three point output Fault alarm Manual icon After pressing the selector key W W2 WE Y or Xd reading together with associated value in 2 10 11 12 13 14 15 16 17 18 Bar graph Xd in Enter key Selector key Manual automatic key Cursor key increase next Cursor key decrease back Return key Exchangeable label Infrared interface SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 Internet http www samson de EB 6493 1 EN 2013 05
80. put variable to a value at which the control valve slowly opens 3 Proceed as described below for the desired control action 5 1 P controller Enter KP 0 1 Adjust the reference variable to the desired value in operating level Use the cursor keys to change the output variable to a value at which the control valve slowly opens and the error Xd becomes approximately zero Switch to automatic mode Increase the KP value until the controlled system tends to oscillate Slowly decrease the KP value until the oscillations are eliminated To eliminate the remaining system deviation proceed as follows switch to manual mode Change the output variable so that the error Xd 0 Read the value displayed for the output variable and adjust the parameter Y PRE CNTR C PID to this value Note Each change of the reference variable also changes the operating point 5 2 Pl controller Enter KP 0 1 and TN 1999 Adjust the reference variable to the desired value in operating level Use the cursor keys to change the output variable to a value at which the control valve slowly opens and the error Xd becomes approximately zero Switch to automatic mode 66 6493 1 EN Start up Increase the KP value until the controlled system tends to oscillate Slightly decrease the KP value until the oscillations are eliminated Decrease the TN value until the controlled system tends to oscillate Slightly increase the TN value until the osc
81. r 0 2 to 10 V or two wire transmit ter see below Version 6493 01 temperature sensor or potentio meter see below Version 6493 02 0 4 to 20 mA or two wire trans mitter see below Input for mA or V Measuring ranges 0 4 to 20 mA or 0 2 to 10 V Measuring range changeover Performed by software Maximum permissible values Current 50 mA voltage 25 V Internal resistance Current R 50 voltage 20 Permissible common mode voltage Oto5V Error Zero lt 0 2 span lt 0 2 linearity lt 0 2 Temperature influence Zero lt 0 1 10 span lt 0 1 10 Transmitter supply Acc to DIN IEC 381 NAMUR NE 06 20 V max 25 mA resistant to short circuit M Pt 100 Pt 1000 100 C to 500 C Temperature Nleasuring range Ni 100 1000 60 C to 250 C sensor Wire resistance Three wire cable R lt 150 Erfor Zero lt 0 1 gain lt 0 1 linearity lt 0 1 Pt 100 Pt 1000 in the range eT between 40 and 150 Zero 0 2 gain 0 2 linearity 0 2 Temperature influence Zero lt 0 2 10 span lt 0 2 10 Potentiometers Measuring range O to 1 three wire Wire resistance lt 15Q each Error Zero lt 0 2 76 lt 0 2 Temperature influence Zero lt 0 1 26 10 gain 0 2 10K Binary input External switching voltage 24 V DC
82. ri able W or W2 Press selector key repeat edly until W or W2 ap pears Change the value using the cursor keys New value is accepted at once No confirmation re quired switch to manual mode BS 80 Press manual automatic key In manual mode use the cursor keys to determine the output variable change the output vari able P Press manual automatic key to display Y Change its value using the cursor keys enter setup level for configuration and parameterization EKD Press enter key Do not press the enter key when W W2 or WE blink otherwise you acti vate a new reference vari able 8 EB 6493 1 EN Operation 2 4 Setup level This level enables you to configure and parameterize the compact controller You can enter the setup level from the operating level by pressing the enter key once Here you may adapt preset functions to your specific needs configure and change parameters The functions are ar ranged in nine main groups PAR control parameters IN input functions SETP reference variable CNTR control structure and functions OUT output functions ALRM alarm functions AUX additional functions TUNE start up adaption Fo view process data The parameters are p s to the function they are assigned to This means that pressing 2 allows you to access only the parameters that are relevant for the particular function you have chosen
83. s back to automatic mode Exception if the controller was in man ual mode upon activation of the binary input already it remains in manual mode Manual mode is indicated by the on the display Choose between oFF CH MA Function deactivated bil CH MA Transfer to manual mode via binary input Note Several functions can be assigned to the binary input 6493 1 EN 35 Functions of the compact controller cog a ino a 4 o _ d lt n cog F 19 L1 jui oj uewu ssy LOG 4nd no oj dejs eeuuj dejs o uewu ssy ayy jonupu e e Buyosedo ur A o a 3 Loa alino a I wn o SNDWOINY 19 109 dy xo disg _ Ddd 1 438 disc disz 4ndjno 5 DASA 0 lt 9 3 OZ 1 Miei dA ervo orvoxllbrvo Allt lt Ao 4ndyno
84. s not displayed in operating level It is only displayed in I O level see section 3 9 3 6493 1 EN 27 Functions of the compact controller 3 3 2 SP FU This function enables you to define a set point ramp and change between the different reference variables via the binary input Set point ramp means that the wh reference variable changes at WINT a constant rate When the ref erence variable is changed the compact controller follows this change with a certain de lay to prevent oscillations The transit time of the set point ramp is determined by the pa rameter TSRW TSRW refers to the entire defined measur ing range e g WINT and AWINT When the reference W24 1 sz WINT u variable changes from a value Upper range value W Old value of ref variable W1 to a new value W2 the Lower range value W2 New value of ref variable actual transit time of the set TSRW Transit time of set fl Actual transit time of set point ramp is the time t1 as il point ramp point ramp lustrated in Fig 5 You may start the set point ramp via the binary input and choose between two starting values actual value or parameter WIRA The set point ramp can also be active upon each change of the reference variable TSRW ti x WINI WINTI Fig 5 Set point ramp I w2 wil Choose between Set point ramp oFF RAMP Set point ramp deactivated F01 RAMP Set poi
85. s originally set up for 4 to 20 mA therefore it does not need to be changed How ever you must determine the measuring range for the reference variable in parameter level with O to 10 bar To do this open the parameter level in the main group IN in the function CO IN1 By default WE is deactivated To activate WE enter the CO SP VA function in the main group SETP and select WE Set WE to on Additionally set the measuring range of W in ternal reference variable to O to 10 bar In operating level you may now select W or WE as reference variable When defining WE as active reference variable follow up control is im plemented automatically When defining W as active reference variable you have set up fixed set point control For this control action you can enter the reference variable value in operating level via the cursor keys Control action should be PID not Pl as specified in factory defaults Go to the main group CNTR and change the settings of the CO C PID function to Pld Additionally alter KP TN and TV in the parameter level 6493 1 EN 61 Practical examples By default the output variable Y is set up for a continuous signal ranging from 4 to 20 mA As a result the output variable does not need to be modified in this example The following table lists the required settings in short together with the parameter definitions Setup level Main group Function Setting Parameter Value Co
86. t of XD is exceeded L HYS Differential gap 0 10 100 0 0 5 1 All functions and parameters can be read without the key number Only when changing functions or parameters for the first time you are prompted to enter the key number 2 90 6493 1 EN Range of values is identical to that of the assigned input 3 4 Decimal place depends on the DP function main group AUX The parameter values in brackets only apply to controller version 6493 02 6493 1 EN 91 Appendix A Appendix A Main Function Displayed KEY Setting Description of function Details Parameters Parameter Parameter designation Range of values Factory group CO settings options PA selection unit default Additional functions AUX CO MODE Restart conditions after power failure RE CO MODE YIKI Constant output value 10 0 110 10 0 RE CO MODE Manual mode and with constant output value Y1K1 F02 Automatic mode with last reference variable value received and Y1K1 without confirmation F03 MODE Automatic mode with last reference variable value received and Y1K1 confirmation required CO FrEEINIT FrEE INIT Resetting to factory defaults deactivated com p 54 noPA ST IN INIT No parameters ST IN All INIT pleted FUnC INIT all functions parameters and the key number PArA INIT all functions AdJ INIT all parameters Basic initialization of calibrating values for
87. the PC s serial RS 232 interface and the controller s integrated infrared interface Note For additional information on installation connection and operation refer to the Mounting and Operating Instructions EB 6493 2 EN 16 6493 1 EN Operation TROVIS 6493 EC N S 2 1 Infrared adapter 2 Optional 1 COM 1 COM 4 port of computer Fig 1 Connecting an infrared adapter 6493 1 EN 17 Functions of the compact controller 3 Functions of the compact controller In this section all functions of the setup level are described We assume that you are familiar with the operation of this controller and know how to change functions and parameters The compact controller contains nine main groups PAR IN SETP CNTR OUT ALRM AUX TUNE and I O Each of the sections 3 1 to 3 9 is dedicated to one of the main groups The main groups have different functions which can be identified by CO displayed in the upper display section The functions are explained in the subsections e g 3 2 1 the subsection titles already indicate the functions designation Almost every function provides different setting options from which you can choose one to adapt this function to your specific needs The setting options of the functions are marked with a small grey square in these instructions If you need to adjust parameters for your function they will be specified and explained if necessary The value
88. tive sign nE6 FECO Feedforward control with negative sign Parameters to be set 1 Constant for formula stated above FC K2 Constant for formula stated above FC K3 Constant for formula stated above 6493 1 EN 33 Functions of the compact controller a WERE WE WE FCK1 FCK2 FC K3 FC K3 FCKI WE b WEE WE WE FC K1 FCK2 FC K3 FC K3 we px Y Fig 9 Feedforward control with positive a and negative b signs 3 4 8 AC VA Increase decrease of actual value This function enables you to increase or decrease the actual value Upon activation of the binary input the input signal X is additively linked to the parameter AV K1 The new actual value is now used for control It is also indicated in the upper display section for the controlled variable Upon deactivation of the binary input the input signal X is used for control again In parameter level the parameter AV K1 is given in percent ranging from 110 to 110 When entering for example AV K1 30 the current value for X will be increased from 50 to 80 Choose between oFF IN DE Increase decrease of actual value deactivated bil IN DE Increase decrease of actual value via binary input Parameter to be set AV K1 Constant in 34 6493 1 EN Functions of the compact controller Note Several functions can be assigned to the binary input 3 5 Output functions This main group
89. upon restart after a Fig 10 Output ramp power failure 6493 1 37 Functions of the compact controller Y PiD Y PID gt t YPD Input signal without limitation Y PD Output signal with limitation The rate of output changes can be limited for a decreasing and an increasing output variable RA YP for an increasing output vari able 04 RA YP or for a de creasing output variable FOS RA YP In the limited direc tion s the output variable changes only as fast as the pa rameter TSRA allows it to If the rate of output changes is slower than the defined rate of Fig 11 Limitation of rate of output changes effective Fig 11 illustrates the effect of the described function The rate of changes for the output variable vy is calculated as follows 100 TSRA Choose between oFF RA YP Deactivated 201 RA YP Ramp when activated starts with 10 FO2 RA YP Ramp when activated starts with parameter FO3 RA YP Limitation for decreasing and increasing output variable 04 RA YP Limitation for increasing output variable 205 RA YP Limitation for decreasing output variable Parameters to be set TSRA Transit time of output ramp YIRA Starting value for output ramp changes limitation will not be Note Several functions can be assigned to the binary input
90. y W Use cursor keys to adjust new value 60 6493 1 EN Determine new value for reference variable Practical examples 4 2 Follow up control A follow up control loop is il lustrated in Fig 20 In this ex TROVIS ample a pressure between 0 pu 6493 02 and 10 bar is controlled and WE 4 20 mA 4 55 measured via a two wire 20 mA K transmitter two wire 4 20 mA transmitter could be the SAMSOMATIC Type pi 3994 0050 Transmitter for example The external refer ence variable is provided by a 4 to 20 mA signal In addi tion we want to be able to switch to a fixed value for the internal reference variable The control valve with positioner is controlled by a continuous output variable Y ranging from 4 to 20 mA The controller version TROVIS 6493 02 with two mA inputs is used in this example Proceed as follows Fig 20 Pressure control The controlled variable X represents the pressure p1 which is measured via a two wire transmitter and connected to the input In2 This input is designed for 4 to 20 mA by default i e it does not need to be changed However you have to set the measuring range for this input to 1 to 10 bar To do this select the CO IN2 function in the main group IN and defi ne the measuring range in the parameter level The external reference variable WE is applied to input 1 as a 4 to 20 mA signal The input In i
91. y reset functions parameters and calibrating values to factory defaults and lock the operator keys In addition you may modify the contrast settings of the display 3 7 1 RE CO Restart conditions after power failure This function enables you to define the output variable and operating mode after a power fail ure has occurred Selection of must be confirmed to return to normal control operation In this case the display sections for reference variable and controlled variable blink until the reset key is pressed Choose between F01 MODE Manual mode with constant output value Y1K1 F02 MODE Automatic mode with last reference variable value received and Y1K1 without confirmation F03 MODE Automatic mode with last reference variable value received and Y1K1 restart with confirmation via reset key 6493 1 EN 53 Functions of the compact controller 3 7 2 ST IN Resetting to factory defaults This function enables you to reset all settings for parameters functions and calibrating values together or individually FrEE INIT Resetting deactivated completed All INIT Resetting all the functions parameters and the key number FUnC INIT Resetting all the functions PArA INIT Resetting all the parameters and the key number AdJ INIT Basic initialization of the calibrating values for In1 In2 and Y1 To reset to factory default proceed as follows You are in the main group AUX and have selected ST IN 1 Press the enter key FrE
92. y selecting oFF MA YP or until a new operating point is adjusted in manual mode If you deactivate operating point adjustment in manual mode the output variable specified in manual mode will assume the calculated value within approx two seconds Choose between oFF MA YP Operating point adjustment in manual mode for deactivated on MA YP Operating point adjustment in manual mode for activated 3 4 6 DIRE Operating direction of output variable The output variable may either act directly or inversely to the error This operating direction is defined with the DIRE function Note that the operating direction can also be inverted with the SIGN function see section 3 4 2 Choose between dir d DI AC Direct operating direction of output variable factory default in d DLAC Inverted operating direction of output variable 3 4 7 F FOR Feedforward control You may use the input WE for feedforward control see section 3 3 1 The disturbance signal can be multiplied and additively linked by parameters according to the formula WE FC K1 FC K2 FC K3 The following then applies WE FC K1 gt 0 The signal is then connected to the controlled variable FC K1 FC K2 and FC K3 are constants you have to define in parameter level The mathematical sign of the formula stated above is de termined in the F FOR function Choose between oFF FECO Feedforward control deactivated factory default POS FECO Feedforward control with posi

Mounting and Operating Instructions EB 6493-1

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