Sub-Zero PT244-T User manual

Connection Diagram ( for PT244-T- AA )W2C30
RTD1RTD2RTD3
1245
PNNOC
230V
SSR +SSR -
1267811
TC
+
-
Caution for your safetyWIRING: The probe and its corresponding wires should never be installed in a conduit next to control or power supply lines. The electrical wiring should be done as shown in the diagram. The power supply circuit should be connected to a protection switch. The terminals admit wires of upto 2.5sq mm.WARNING: Improper wiring may cause irreparable damage and personal injury. Kindly ensure that wiring is done by qualified personnel only.Maintenance: Cleaning: Clean the surface of the controller with a soft moist cloth. Do not use abrasive detergents, petrol, alcohol or solvents.Notice: The information in this document is subject to change in order to improve reliability , design or function without prior notice and does not represent a commitment on the part of the company. In no event will the company be liable for direct, indirect, special, incidental or consequential damage arising out of the use or inability to use the product or documentation, even if advised of the possibility of such damages. No part of this manual may be reproduced or transmitted in any form or by any means without the prior written permission of the company.Controller :Controller should be installed in a place protected by vibration, water and corrosive gasses and where ambient temperature does not exceed the values specified in the technical data.Probe :To give a correct reading, the probe must be installed in a place protected from thermal influences, which may affect the temperature to be controlled. Product MountingInstallation : Fixing and dimensions of panel models:To fix the unit, slide the fastener 1 through the guides 2 as per the position shown in the figure. Move the fastener in the direction of the arrow, pressing tab 3 it permits to move the fastener in the opposite direction of the arrow. 45.5mm45.5mmPanel CutoutDimensions 48mm48mmPVSVPT244-TOperating ManualPT244-T / PT244-K / PT244-T-AA IntroductionA proportional–integral–derivative controller (PID controller or three term controller) is a control loop feedback mechanism widely used in industrial control systems and a variety of other applications requiring continuously modulated control. A PID controller continuously calculates an error value as the difference between a desired setpoint (SV) and a measured process variable (PV) and applies a correction based on proportional, integral, and derivative terms (denoted P, I, and D respectively) which give the controller its name.PT244-T is a two set point PID controller. It is available in touch & keypad version. Customized iconic display interprets status easily.48mm123CONTROLLERGASKETPANELSide LockConnection Diagram ( for PT244-T- )W2C30
RTD1RTD2RTD3
12345
PNNO1C1
230V
SSR +
1267811
TC
+
-
SSR
NC1
Connection Diagram ( for PT244-T/K-W2C34 )12345678101211
RTD1
SSR +SSR -
PNNO1C1NO2C2TC
230V
RTD2RTD3
+
-
Connection Diagram ( for PT244-T/K-W*C34 )12345678101211
RTD1
SSR +SSR -
NO1C1NO2C2TC RTD2RTD3
+
-
+
-
PowerSupply ** 12Vac/dc or 24V ac/dc on request
134567Control1 set point.Sets the type of input sensor .Sets input correction.Sets the lower limit of PV input.Sets the upper limit of PV input.Sets the dwell time.Level1 Parameter2Control2 set point.IndexSr. No.Para.DescriptionUser InterfaceTechnical SpecificationInitial display when Power is ONParameter setting modeWorkingInput types & Input rangeSet modeSets cycle time for PID action.Sets proportional band.Sets integration time.Sets differential time.Sets the hysteresis1Runs auto tuning.Sets control action for relay1 / SSR.8910Sets control action for relay2. (for 2 Relay)Sets the hysteresis2. (for 2 Relay)Sets the alarm type. (for 2 Relay)Sets AL1 icon as alarm relay. (for 2 Relay)11121314151617Factory reset parameter.181920Sets Control1 output.Lock keypad.21LED IndicationsAlarm TypesLevel2 ParameterError Messages Pro-key (On-request) Ordering Information To enable Dwell timer.Low temperature limit. (for 1 Relay)High temperature limit. (for 1 Relay)222324Sr. No.DescriptionProcess Value (PV)RUN mode : Displays current measured value.SETTING mode : Displays parameter.Set value (SV)RUN mode : Displays set value. Displays countdown time when Dwell timer is running. SETTING mode : Displays set value of parameter.Turns ON while control output1 is ON.421Displays the Temperature unit.3User Interface47611253289101113PVSVPT244-T8Turns ON while control output2 is ON. (for two relay)Turns ON when auto tuning is in progress.57Flashes during Dwell timer is in progress. Continuous ON : Dwell time elapsed. Turns ON when the corresponding alarm out turns ON.69Turns ON when keypad is locked.10Next key : Used to enters parameters level, moves to nextparameters. Press & hold this key atleast 2 seconds to enterin set mode.Press & hold this key atleast 4 seconds to enterin Level1 Parameters.Press & hold this key atleast 6 seconds to enterin Level2 Parameters.11DownUsed in Program mode to decrement parametervalue.Used to reset the Dwell timer.. / Reset Key : 13Up / AT Key :value.Press this key for 2 seconds to start or stop auto-tuning.Used in Program mode to increment parameter12Exit Key :Press this key to save the setting value and to exitthe programing mode.Input types & Input rangeInput TypeThermocoupleJK1DecimalPoint1DisplayOInput Range (C)O-50 to 750CO-50 to 1200CRTDPt10010.1O-99 to 400CO-99.9 to 400.0CThe Auto-tuning function automatically computes and sets the proportional band (P), Integral time (I), Derivative time (D) as per process characteristics.While Auto-tune is in progress "AUTO" led will turn ON.After Auto-tuning is complete the "AUTO" led will turn OFF.If auto -tuning is not complete after 3-4 cycles, it is suspected to fail. In this case, check the wiring & parameters such as the control action, input type etc.Carry out the auto-tuning again, if there is a change in setpoint or process parameters. PID-time proportionalwith auto reset & rate Working2. ON/OFF control action (For reverse mode)The relay is ‘ON’ up to the set temperature and cuts”OFF” above the set temperature . As the temperature of the system drops ,the relay is switched ‘ON’ at a temperature lower than the set point .HYSTERESIS:The difference between the temperature at which relay switches ‘OFF’ is the hysteresis or dead band.1. Auto tuningNote : In Auto Tuning running time, user can not change the parameter value.1. PT244-T-W2C34 / PT244-K-W2C34 - Two Relay2. PT244-T-W2C30AA - Single Relay3. PT244-T-W2C30 / PT244-K-W2C30 - Single Relay4. PT244-T-W5C34 / PT244-K-W5C34 - Two RelayModel DescriptionTechnical SpecificationHousing : Polycarbonate PlasticDimensions : Frontal : 48 X 48mm, Depth : 78mmPanel Cutout : 45.5 X 45.5mmMounting : Flush panel mounting with fasteners.Protection : IP65 FrontConnections : Terminal connectors. < 2.5sq mm terminal only.Display : 4 X 17mm 7 segment Red/White display, 4 X 8mm 7 segment Green display 7 Iconic LEDs for IndicationData storage : Non-volatile flash memoryOperating temp. : 0°C to 60°C (non-condensing)Operating humidity : 20% to 85% (non-condensing)Storage temp : -25°C to 60°C (non-condensing)Power input : 230 Vac ±15 % , 50/60Hz Standard. 85 to 265Vac, 12/24Vdc on request.Control output : (For all PT244-T- / PT244-K) Relay : 5A, 230V AC (Res.) or SSR (field selectable) : 10V DC, 30mA Except - (For PT244-T-W2C30 / PT244-K-W2C30) Relay : 10A, 230V AC (Res.) or SSR (field selectable) : 10V DC, 30mA (For PT244-T-W2C30AA) Relay : 16A, 230V AC (Res.) or SSR (field selectable) : 10V DC, 30mAAuxiliary output : (For all PT244-T / PT244-K) Relay : 5A, 230V AC (Res.)Input Type : RTD : Pt100 Thermocouple : J, K OOResolution: 0.1C / 1C for RTD (Pt100) inputO 1C for Thermocouple (J, K) inputODisplay Accuracy: RTD : 0.1% of F.S +/- 1C Thermocouple : 0.3% of F.S (20 min of settling time for TC)Sampling Period: 1 secondWhen power is On, entire display part will flash for 3 sec, software version will flash for 3 sec and then enter in to RUN mode.Initial Display when Power is ON1. Entire display Part2. Run Mode Parameter Setting ModeFunction: To set control1 set point.1ParameterSET MODEThis parameter is prompted only if Relay 2 is configured in ,1.As absolute auxiliary control or as an alarm (High/Low) mode.2.As deviation auxiliary control or as a deviation alarm mode.Note: If set to OFF, will not be shown in the SP setting.Function: To set control2 set point.(For 2 Relays)2ParameterMinMax
Fac.
O0CPress & hold key for 2 second.Display will show . UP/ DOWN keys. Holding the key, will change the value at a faster rate. Press key to store the desired value & move on to the next parameter.( For 2 relays / Dwell). Set value also can be stored by pressing KeyUser can change value using MinMax
Fac.
O0CFunction: Sets input correction.5ParameterMinMax
Fac.
In time it may be possible that the display may be offset by a degree or so.To compensate for this error, user may need to add or minus the degrees required to achieve the correct temperature.OExample : The temperature on the display is 28C, whereas Othe actual temperature is 30C. User will have to set the " " Oparameter to 2C, which means that once out of the Oprogramming mode, the temperature on display will be 30C OO(28C+ 2C).O-20CO20CO0CLEVEL1 ParameterPress & hold key for 4 seconds to enter into Level1 parameter setting( will flash). When release the key, will flash.Press UP/DOWN keys to modify the set value and to go to the next parameter by pressing key.Press the key to save the set value and to come out of parameter setting after changing the set value. Function: Sets the type of input sensor .4ParameterMinMax
Fac.
For J type sensorFor type of input sensor & range please refer "Input types & Input range" table.While changing the sensor type , , , , , , parameters of level1 will reset accordingly.Function: Sets the dwell time.3ParameterMinMax
Fac.
9999 minThis parameter is prompted only if Relay 2 is configured in as " ".This parameter is prompted only if parameter in is configured as . (Only for Single Relay) For dwell timer operation please refer Working section.Note: 1) Countdown timer is displayed on the lower display. Once total time elapsed lower display will show " ". (Not applicable for PT244-K) 2)DWL icon LED blinking indicates that dwell timer is in progress. It switches to continuous ‘ON’ when dwell timer is over. 3) If Dwell time programmed as OFF, it will disable the dwell timer.4) When soak in progress & dwell time is modified, new dwell time is applicable .5) The dwell period can be reduced or increased when the timer is running. if it is reduced to meet the time elapsed. the timer will change to the end state.6)Once the timer output was energized it can be reset withthe Reset key.A dwell timer is used to control a process at a fixed temperature for a defined period. Once the process reaches the setpoint, dwell timer starts to count until time out . After the time completes, control output goes OFF and auxiliary output energises as an alarm.3. Dwell Timer : Settings = = min10min

14ParameterFunction : To restore default settings of the controller.Function: Sets cycle time for PID action.18ParameterMinMax
Fac.
1 sec60 sec3 secCycle time also known as duty cycle, the total length of time for the controller to complete one ON/OFF cycle. Example : With a 20 second cycle time, an on time of 10 seconds and an OFF time of 10 seconds represents a 50 percent power output. The controller will cycle ON and OFF while within the proportional band. MinMax
Fac.
Sets the proportional band of PID parameter.MinMax
Fac.
O0.1CO100.0CO10.0C
Term P is proportional to the current value of the SV-PV error . Example : If the (SV-PV) error is large and positive, the control output will be proportionately large and positive and vice versa if error is negative.Function: Sets proportional band.19ParameterParameterFunction: Sets integration time.20Sets the integration time of PID parameter.MinMax
Fac.
0 sec2000 sec120 sec
Term I accounts for past values of the SV-PV error and integrates them over time to produce the I term. Setting "0" will turn OFF integration.Example : If there is a residual SV-PV error after the application of proportional control, the integral term seeks to eliminate the residual error by adding a control effect due to the historic cumulative value of the error. MinMax
Fac.
Function: Sets differential time.21ParameterSets the differential time of PID parameter.Setting "0" will turn OFF differential.Term D is a best estimate of the future trend of the SV-PV error, based on its current rate of change. It is sometimes called "anticipatory control", as it is effectively seeking to reduce the effect of the SV-PV error by exerting a control influence generated by the rate of error change. The more rapid the change, the greater the controlling or dampening effect.MinMax
Fac.
0 sec1000 sec30 sec
Function: Sets Control1 output.23ParameterThis parameter is used to configure control1 out as, = SSR = Relay User has to set this parameter in accordance with the output used.24ParameterFunction: To lock keypad.This parameter is used to lock the parameter so that tampering is not possible by by-standers. = unlocked parameter = Locked parameterWhen locked all parameters can only be viewed ,but can not be modified.MinMax
Fac.
MinMax
Fac.
Function: Set the hysteresis width for ON-OFF action in Control1.22ParameterMinMax
Fac.
O1CO100CO2CThis parameter will be prompted only if selected control action is (reverse) or (forward) in setting.It sets the deadband between ON & OFF switching of the output.OExample (For Fd control) : If the set point is set at 100C and OOhysteresis is set at 2C, then when the system reaches 100C, Othe heater relay will go OFF. Since the hysteresis is 2C, the OOOheater relay will get ON (restart) at 102C (100C +2C).Keypad LockedKeypad Locked
TM
Disclaimer: This manual & its contents remain the sole property of PVR CONTROLS . India and shall not be reproduced or distributed without authorization. Although great care has been taken in the preparation of this document, the company or its vendors in no event will be liable for direct, indirect, special, incidental or consequential damage arising out of the use or inability to use the product or documentation, even if advised of the possibility of such damages. No part of this manual may be reproduced or transmitted in any form or by any means without the prior written permission of the company. PVR CONTROLS., reserves the right to make and changes or improvements without prior notice.Warranty: This product is warranted against defects in materials and workmanship for a period of one year from the date of purchase. During the warranty period, product determined by us to be defective in form or function will be repaired or, at our option, replaced at no charge. This warranty does not apply if the product has been damaged by accident, abuse, and misuse or as a result of service or modification other than by the company. This warranty is in lieu of any other warranty expressed or implied. In no event shall the company be held liable for incidental or consequential damages, including lost revenue or lost business opportunity arising from the purchase of this product.04 / 23.11.19Digital Panel MeterPower AnalyzerTimer , PLC , HMIData Logger OUR OTHER PRODUCTSCalibration CertificateDATEMODEL NO.Claimed Accuracy :For TC inputs:0.3% of FSOFor RTD inputs:0.1% of FS +/-1C(20 min of settling time for TC inputs)Calibration Instrument & Sr. No :Calibrated ON :Valid Upto :The calibration of this unit has been verified at the following values :SENSOR TYPERTDVALUE OTESTED (C)O0CO100CO350CJ,KO50CO400CO650CInstrument is confirmed accepted as accuracy is within the specified limit. This certificate is valid upto one year from the date of issue.CONTROLLERSR. NO.Checked By :PVR Controls, India(Specification are subject to change, since development is a continuos process.)VALUE OObserved (C)All values within specified limit of accuracyLED IndicationLEDDescriptionStatusONOFFRelay1 / SSR OFF.Relay1 / SSR ON.ONOFFRelay2 OFF.Relay2 ON.ONOFFTuning is in progress.Tuning Stop. FLASHINGONDwell time elapsed.Dwell timer is in progress.. Alarm relay ON. Alarm Relay OFF.ONOFFONOFFParameters are Locked. Parameters are Unlocked.OFFDwell timer disabled. Error MessagesMessageDescriptionDisplays when input sensor is disconnected or sensor is not connected.Flashes when measured value is higher than input range.Flashes when measured value is lower than input range.ONAlarm indication ON.(for Single Relay) OFFAlarm indication OFF.(for Single Relay) If user tries to enter Pro-key mode without inserting the pro key or with wrong connection, no further function will be activated after displaying “ or ”. Controller will display “ ”. Then switch off controller and insert the pro key properly and try to enter Pro key mode.User has to first Upload the parameters in the Subzero Validated Blank Pro-Key and then subsequently use it for downloading. Uploading modePress key to upload the parameters to Pro Key.Lower display will show " " once uploading is done. Press to exit display will show "----" and return to normal display. Downloading modeSimilarly connect Pro key to the controller .Press key to download all parameters from Pro key to the controller.Lower display will show " " once download is done.Once done press key to exit and display will flash and return to normal mode.Pro-Key ( On Request ) (Not for Single Relay)FunctionKeys to be UsedTo upload the parameters from the controllerTo download the parameters to the controllerTo set and exit touch " " keytouch " " keytouch " " keyTo use Pro-key user must insert it prior to power ON. Insert the pro-key and power ON controller. When the display flashes for 5 seconds, touch the key for 1 second. Controller will enter into Pro-key mode and will display “ ”. Then touch either of the below given keys to use the Pro-key. Functions of Pro-key and the keys to be used for are as given below: Temperature above the maximum hightemperature limit.Temperature below the minimum lowtemperature limit.Function: Sets the alarm type. ( only For 2 Relay)13Function: Set the hysteresis for ON-OFF action in Control2. (only For 2 Relays)12MinMax
Fac.
O1CParameterO100CO2CThis parameter will be prompted only if selected control action is rE (reverse) or Fd (forward) in setting.It sets the deadband between ON & OFF switching of the output.It's applicable when is (reverse) or (forward).MinMax
Fac.
: Deviation: AbsoluteParameterFor alarm types setting , please refer Alarm Type description.OExample (For Fd control) : If the set point is set at 100C and OOhysteresis is set at 2C, then when the system reaches 100C, Othe heater relay will go OFF. Since the hysteresis is 2C, the OOOheater relay will get ON (restart) at 102C (100C +2C). ParameterFunction: Ttemperature limit. (only for Single relay)o set maximum allowable high 9OExample: If this parameter is set to 700C and the Otemperature reaches or goes above 700C, display will show (High Temp.) alarm indicating that the temperature has reached or gone above the value set in this parameter.MinMax
Fac.
(Message on display)Note : Ht fault will be ignored at every power ON.Function: Sets control action for relay2.(only For 2 Relay)11ParameterThis parameter used to set required control action for relay 2 as,= No action= Reverse= Forward= Dwell timeMinMax
Fac.
ParameterFunction: To set minimum allowable low temperature limit. (only for Single relay)10OExample: If this parameter is set to -40C and the temperature Oreaches or goes below -40C, display will show (Low temp) alarm indicating that the temperature has reached or gone below the value set in this parameter.MinMax
Fac.
(Message on display)Function: Sets control action for relay1/SSR.16This parameter is used to set required control action for relay 1/SSR as,Parameter= Reverse= Forward= PIDMinMax
Fac.
LEVEL2 ParameterPress & hold key for 6 seconds to enter into Level2 parameter setting( will flash). When release the key, will flash.Press UP/DOWN keys to modify the set value and to go to the next parameter by pressing key.Press the key to save the set value and to come out of parameter setting after changing the set value. 15ParameterFunction : To restore default settings of the controller.When Set to Yes all parameter are programmed to factory values.Useful to debug setting related problems.MinMax
Fac.
14Set " " to enable AL1 icon.AL1 icon turns ON when the corresponding alarm output turns ON.Type of alarm can selected by using Mod2 parameter.ParameterFunction: Sets AL1 icon as alarm relay ON/OFF indicator for alarm indication. (only For 2 Relay)MinMax
Fac.
For Single Relay :When temperature is above high temperature limit or temperature is below low temperature limit, AL1 indication ON.Both alarms will be ignore at power ON for first time till the setpoint not achieved. (First PID action performed)Function: Sets the upper limit of PV input.7ParameterOnce set at a particular value, this will not allow the set point to go above this value.When changing the setting value and SV > HSV, SV will reset as HSV.Sets the maximum limit for set point adjustment. It can be set from LSV+1 value to maximum specified range of selected sensor.MinMax
Fac.
O750CFor J type sensorO750C +1Function: Sets the lower limit of PV input.6ParameterMinMax
Fac.
Once set at a particular value, this will not allow the set point to go below this value.O-50CFor J type sensorWhen changing the setting value and SV < LSV, SV will reset as LSV.Sets the minimum limit for set point adjustment. It can be set from minimum specified range of selected sensor to HSV-1 value.O-50C - 18ParameterFunction : To set Dwell Timer. (Only for Single Relay)MinMax
Fac.
When Set to Dwell timer is enabled. Note: When selected dwell time can be set in Set Mode.++Function: Runs auto tuning.17ParameterThis parameter is used to set YES/NO to start and stop Auto-tuning.When Set as , the unit starts auto-tuning. After Completing is automatically Set.During auto-tuning, the AUTO icon is continuously ON.This parameter will be prompted only if selected control action is PID in . MinMax
Fac.
Ordering Information=========Alarm Types ( only for Two Relay )SettingAlarm TypeDescriptionDeviation high limit alarmDeviation low limit alarmAbsolute value high limit alarmAbsolute value low limit alarm * : Alarm output hysteresisHigh temperature alarmLow temperature alarmSV = +FD Alarm ON when PV < SV - Alarm OFF when PV = SVSV = +FD Alarm ON when PV > SV + Alarm OFF when PV = SVSV =Alarm ON when PV < SV - Alarm OFF when PV = SV SV = Alarm ON when PV > SV + Alarm OFF when PV = SVPV > PV <(Only for Single Relay)(Only for Single Relay)===W2C34XXT244-48 X 48Output 1--Power Temperature in WhiteTemperature in RedTouchKeysDual LineDisplayTKDisplay ColorKeypadAnalogPT100 + TC (J, K)TC (J, K)Output 2AARelay 16A(Single Output)Alarm RelayXXXCustomized Part