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It is recommended that you do not turn off the controller or change the SP during this process.

During the tuning process, the TUNE indicator will remain lit in the display (see

DISPLAY INFORMATION

section). For PWM or pulse output, the quality of the tuning will also depend on the cycle time set.

If the tuning process does not result in satisfactory control, the table below presents guidelines on how to correct the process behavior:

PARAMETER

VERIFIED PROBLEM

SOLUTION

Proportional
Band

Slow response

Decrease

Great oscillation

Increase

Integral Rate

Slow response

Increase

Great oscillation

Decrease

Derivative Time

Slow response or

instability

Decrease

Great oscillation

Increase

Table 17

–

Manual PID parameter setting

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Summary of Contents for NV-N20K48

Page 1: ...MODULAR PROCESS CONTROLLER Part NV N20K48 USER GUIDE...

Page 2: ...RROR TYPES 14 4 2 4 ALARM TIMER 15 4 2 5 CONTROL MODES 15 4 2 6 PID CONTROL MODE AND ON OFF CONTROL MODE 15 4 2 7 INITIAL ALARM BLOCK FUNCTION 15 4 2 8 SQUARE ROOT EXTRACTION FUNCTION 15 4 2 9 SOFT ST...

Page 3: ...2 DIGITAL OUTPUT 39 7 3 2 3 CONTROL 39 7 3 2 4 TUNING 40 7 3 2 5 ALARMS 41 7 3 2 6 RnS PROGRAMS 43 7 3 2 7 TIMER 44 7 3 2 8 PROTECTION 45 7 3 2 9 GENERAL 45 7 3 3 CYCLES 46 7 3 3 1 OPERATION 46 7 3 3...

Page 4: ...the device CAUTION OR HAZARD Risk of electric shock ATTENTION Material sensitive to static charge Check precautions before handling All safety recommendations appearing in this manual must be followed...

Page 5: ...easy and quick way No screws are required N20K48 Modular Controller dock and ClickNGo modules are separate products and must be ordered individually The image below shows the elements available in th...

Page 6: ...Once attached to the back of the N20K48 Modular Controller the dock allows you to attach electronic modules to the device see CLICKNGO MODULES section It connects electrically to the controller and c...

Page 7: ...7 57 You can combine modules of different sizes if you observe the possible positions for the size 2 modules as shown in the examples below Modules attached to the dock...

Page 8: ...from the device to make the electrical connections Before you connect them make sure you have made the correct connections 3 1 1 POWER SUPPLY CONNECTIONS 100 240 Vac dc Model 24 Vdc ac Model 3 1 2 INP...

Page 9: ...y press it down until you hear it click into place To remove it we recommend using a screwdriver which can help you release the side locks without damaging the product 3 4 HOW TO ATTACH A MODULE TO TH...

Page 10: ...ensions Dimensions 3 5 1 DIMENSIONS WITH THE DOCK After you connect the dock to the back of the device N20K48 Modular Controller will have the following dimensions The dock has the following dimension...

Page 11: ...that the controller is in Manual Control mode CTR MAN STOP Flag Indicates that the control is disabled RUN No That is the device is not inoperation RUN Flag Indicates that the control is enabled RUN...

Page 12: ...A Output B Modules 1 to 8 Programs Timer and Calibration N20K48 Cycles To navigate between cycles as shown in the figure above you must press the key for three seconds Once in the desired cycle simply...

Page 13: ...the specific information of each module in its respective datasheet available on the device web page 4 2 FEATURES This section introduces the N20K48 Modular Controller features To learn more about ea...

Page 14: ...V input signal for example will be identified by the device as a 0 V signal applied to the input and thus will be recognized as a valid value In such situations you should analyze each case The table...

Page 15: ...ol mode Ctr auto has 2 control strategies PID control and ON OFF control In PID control mode the PID control action is based on a control algorithm that acts on the deviation of the PV value from the...

Page 16: ...seconds limits the rise in the percentage of power delivered to the load It will only reach 100 of the power at the end of this interval This function is normally used in processes that require a slow...

Page 17: ...ill be in HH MM hours and minutes or in MM SS minutes and seconds The parameter T RUN allows the process control to be disabled at the end of the timers The flags T1 and T2 are displayed on the front...

Page 18: ...end of T1 It can also be linked to any output available in the controller The linked output turns on at the beginning of T2 and turns off at the end of T2 The T2 flag indicates the T2 timer condition...

Page 19: ...l mode MaN Manual control mode Bumpless transfer between automatic and manual You must set the parameter Enable Control Function Ctr E of the Calibration Cycle CALIB to yes or no to display this param...

Page 20: ...ed for other alarm functions Sp a4 Setpoint Alarm You must set the parameter for the desired Alarm Setpoint E SPA1 E SPA2 E SPA3 or E SPA4 of the Alarm Cycle ALM to yes or no to display the Alarm Setp...

Page 21: ...to tuning seLf Precise auto adaptive tuning rsLf Forces a new precise auto adaptive auto tuning TGHt Forces a new precise auto tuning when RUN YES or when the controller is on pb Proportional Band Pro...

Page 22: ...ional Band is 0 bias Bias function Allows you to change the percentage value of the control output MV by adding a value between 100 and 100 This parameter is displayed if the Proportional Band is 0 Sp...

Page 23: ...differential value alarm DIF H Maximum differential value alarm i Err Open sensor alarm rS Event alarm End t End of Ramp Lbd Loop Break Detection See table in ALARM CONFIGURATION section Sp a1 Sp a2...

Page 24: ...t to the control output command The value 0 zero disables the function Available only for the Loop Break Detection Alarm LBD function See LOOP BREAK DETECTION LBD FUNCTION section T1 a1 T1 a2 T1 a3 T1...

Page 25: ...decimal point position in SP and PV values 0 No decimal places 0 0 One decimal place When configuring the input parameter TYPE with temperature sensors J K Pt10 etc in addition to the integer part of...

Page 26: ...alarm output 4 T1 Output will act as timer output 1 T2 Output will act as timer output 2 M Coil Output will act as a Modbus Coil command for connection to the Modbus TCP protocol Table 10 Output A Cy...

Page 27: ...ware and application configuration screens You can see the configuration information for each module in their respective datasheets available at NOVUS web page Md 1 Module 1 function Only displayed if...

Page 28: ...to define the program type NONE Doesnot use any program RAte Ramp and soak PROG Ramp and soak programs rATE Rate Allows you to set the Setpoint evolution rate in degrees per minute Available only for...

Page 29: ...zero disables the function and the program progresses regardless of the difference between SP and PV Psp0 Psp9 Program SP Program SPs 0 to 9 Set of 10 SP values that define the profile of the Ramps a...

Page 30: ...the timer time base MM SS Time base in minutes seconds HH MM Time base in hours minutes T1 Timer 1 t1 time base Allows you to set a time base for timer 1 Range 00 00 to 99 59 HH MM or MM SS as set in...

Page 31: ...trol will be disabled at the end of the timer RUN No Table 14 Timer cycle 4 3 10 CALIBRATION CYCLE CFG CaLib This is the Calibration Cycle Calibration cycle The inputs and outputs are factory calibrat...

Page 32: ...ws you to set the mains frequency 50 Hz or 60 Hz CTr E Control Enabled If set to yes allows the Control parameter Ctr to be displayed and set in the Operation Cycle See OPERATION CYCLE section PRG E P...

Page 33: ...le passwords to get the right one Once the controller has identified the entry of 5 invalid passwords in sequence it will not allow you to make further attempts for 10 minutes 4 4 3 MASTER PASSWORD If...

Page 34: ...se configured 5 1 PROGRAM LINK You can create a large more complex program with up to 180 segments by linking 20 programs Thus at the end of a program the controller will immediately start executing a...

Page 35: ...nce returning to oFF mode after it is finished In this mode the tuning will be completed in less time but will not be as precise as in FULLmode FULL This mode performs the same process as FAST mode al...

Page 36: ...ll also depend on the cycle time set If the tuning process does not result in satisfactory control the table below presents guidelines on how to correct the process behavior PARAMETER VERIFIED PROBLEM...

Page 37: ...QUICKTUNE You can configure your N20K48 Modular Controller by clicking the Read Device button located on the QuickTune software home screen Windows and the QuickTune Mobile app home screen Android or...

Page 38: ...efine the sensor type of the main input see ANALOG INPUT CONFIGURATIONsection Temperature Unit Allows you to define the temperature unit to be used Celsius or Fahrenheit Decimal Places Allows you to d...

Page 39: ...which turns on the control output when the PV is below SP or Cooling Direct which turns on the control output when the PV is above SP Available only for Automatic control mode Control Hysteresis Allo...

Page 40: ...e as a percentage of the input type maximum range When set to 0 0 determines the ON OFF control mode Range 0 500 Integral Rate Allows you to define the integral rate It refers to the I value of the PI...

Page 41: ...ng Allows you to define whether there will be an initial block of alarm 1 see ALARM INITIAL BLOCK FUNCTION section Alarm 1 Hysteresis Allows you to define a hysteresis value for Alarm 1 T1 of Alarm 1...

Page 42: ...e According to the minimum and maximum SP limitsconfigured Alarm 1 Initial Blocking Allows you to define whether there will be an initial block of alarm 1 see ALARM INITIAL BLOCK FUNCTION section Alar...

Page 43: ...nce Allows you to define the maximum deviation to be allowed between the program PV and SP If exceeded the program is suspended stops counting time until the deviation is within the tolerance set in t...

Page 44: ...llows you to define the timer time base Minutes Seconds or Hours Minutes Time of timer 1 Allows you to define the timer 1 time Range 99 59 in minutes or 0 to 9999 in seconds as configured in the Timer...

Page 45: ...eral tab Frequency of the power grid Allows you to define the mains frequency 50 or 60 Hz Displays Auto Man selection screen on Operation Cycle If enabled the Automatic Manual Control Mode selection s...

Page 46: ...device Manual or Automatic see CONTROL MODES section 7 3 3 2 CONTROL This tab groups the parameters related to the Control Cycle CFG CtRL of the device see CONTROL CYCLE section QuickTu ne QuickTune M...

Page 47: ...you to define alarm 1 function Off Minimum Maximum Differential Minimum Differential Maximum Differential Open Sensor Ramps and Soaks Event End of Soak or Open Loop see ALARM CONFIGURATION section Al...

Page 48: ...ysteresis value for Alarm 1 T1 of Alarm 1 Allows you to define a time interval for triggering Alarm 1 Range 0 5999 in seconds T2 of Alarm 1 Allows you to define a second time interval for triggering A...

Page 49: ...le Sensor type of the main input Allows you to define the sensor type of the main input see ANALOG INPUT CONFIGURATIONsection Main input digital filter Allows you to define a filter for the main input...

Page 50: ...tput 2 Alarm 1 Alarm 2 Alarm 3 Alarm 4 Timer 1 Timer 2 or Modbus Coil see OUTPUT CONFIGURATION section 7 3 3 6 OUT B This tab groups the parameters related to the Output B Cycle CFG out b of the devic...

Page 51: ...r Program Tolerance Allows you to define the maximum deviation to be allowed between the program PV and SP If exceeded the program is suspended stops counting time until the deviation is within the to...

Page 52: ...Timer time base Allows you to define the timer time base Minutes Seconds or Hours Minutes Time of timer 1 Allows you to define the timer 1 time Range 99 59 in minutes or 0 to 9999 in seconds as confi...

Page 53: ...IONsection Frequency of the power grid Allows you to define the mains frequency 50 or 60 Hz Displays Auto Man selection screen on Operation Cycle If enabled the Automatic Manual Control Mode selection...

Page 54: ...d as follows In the Sensor Type TYPE parameter present in the Configuration Cfg Input IN cycle set the type of input to be calibrated In parameters IN LL and IN HL of the Input Cycle CFG IN use the an...

Page 55: ...0 00385 With cable length compensation and 0 170 mA excitation current All input and output types are factory calibrated The thermocouples are in accordance with NBR 12771 99 and RTDs NBR 13773 97 st...

Page 56: ...imits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequenc...

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