Watlow Series 935A Manual do Utilizador

0600-0015-0000 Rev L $15.00January 2002Supersedes: 0600-0015-0000 Rev KUser’s ManualRegistered Company Winona, Minnesota USA TOTAL3 Year WarrantyCUST

8 Watlow Series 935A User’s ManualRespond to a simple errorDisplay Probable Cause Recommended ActionReversed thermo- Change the sensorcouple connectio

Watlow Series 935A User’s Manual 9Software Organization• The Series 935A has three primary menus in addition to a normal display.• The software revert

10 Watlow Series 935A User’s ManualThe Series 935A Operations Menu is the first menu you encounter when you press the . and , keys simultaneously for

Watlow Series 935A User’s Manual 11Table 4 - Operations Menu Overview To enter the Operations Menu, press the . and , keys simultaneously for three se

12 Watlow Series 935A User’s ManualChoose the PID StrategyYou may rely solely on the Auto-tune [`Aut] function (p. 32) and factory defaults to determi

Watlow Series 935A User’s Manual 13Set the PID Menu Values• Proportional Band, Heat and Cool [Pb`h] and [Pb`c]: Select a value (degrees) to set up ban

14 Watlow Series 935A User’s ManualTable 5 - PID Menu Overview Set-Up HeatProportional Band Heat - Select a heat proportional band value.[```0] [`999]

Watlow Series 935A User’s Manual 15Set-Up GeneralIntegral Function - Select an integral value.[`)00] [9(99]0.00 to 99.99 minutes/repeatDerivative Func

16 Watlow Series 935A User’s ManualThe Configuration Menu is the second sub-menu in the Operations Menu. Use it to set Inputs, Ranges, Output Types, A

Watlow Series 935A User’s Manual 17NOTE:Access to Configuration Menu varies with lockout function. See p. 19.Alarm Hysteresis - Choose alarm switching

Safety Information in this ManualNote, caution and warning symbols appear throughout this book to draw your attention toimportant operational and safe

18 Watlow Series 935A User’s ManualThe Series 935A offers three different security, or “lockout,” options. Set up one or all three lockout op-tions in

Watlow Series 935A User’s Manual 19View Process Yes Yes Yes Yes Yes Yes YesView Set Point Yes Yes Yes Yes Yes Yes YesChange Set Point No Yes No Yes Ye

20 Watlow Series 935A User’s ManualSetting Inputs and OutputsKey Input/Output Set-up Information• All initial input and output set-up occurs in the Co

Watlow Series 935A User’s Manual 21Input Range InformationJ t/c: 32 to 1382°F or 0 to 750°CK t/c: -328 to 2282°F or -200 to 1250°CT t/c: -328 to 662°F

22 Watlow Series 935A User’s ManualTo Set Up Remote Set Point…1. Wire the control per the example below and the information on p. 42-45.2. Go to [CnfG

Watlow Series 935A User’s Manual 23To Set Up Front Panel Lock…1. Install an external switch.2. Wire the control per the example below and the informat

24 Watlow Series 935A User’s ManualConfiguration Menu[``In]Input Type[`C_F]Celsius/Fahrenheit[``rL]Input Range Low[``rh]Input Range High[`Ot1]Output 1

Watlow Series 935A User’s Manual 25Table 10 - Alarm FunctionsSet PointDeviationnormallyclosedDeviationnormallyopenProcessnormallyclosedProcessnormally

26 Watlow Series 935A User’s Manual1. Plan an alarm strategy. What do you want to happen when an alarm occurs?2. Wire the appropriate control output,

Table 11 (below) and Table 10 (p. 25) illustrate the Series 935A alarm features.Table 11 - Alarm FunctionsSETLatching alarmSilence alarmWith this sele

Watlow Series 935A User’s Manual 1Where to find it…Table of ContentsItem ... PageIntroductio

28 Watlow Series 935A User’s ManualConfiguration Menu[``In]Input Type [`C_F]Celsius/Fahrenheit[``rL]Input Range Low[``rH]Input Range High[`Ot1]Output

Watlow Series 935A User’s Manual 29Table 12 - Series 935A Timer Functions/SettingsDelay ONDelay OFF Signal ON Signal OFFOutput 2Timer OutputFunction;C

30 Watlow Series 935A User’s Manual3015 4501. Plan a timer strategy.2. Wire the Output 2 control output, associated switching devices and annunciators

Watlow Series 935A User’s Manual 313015 450Convection Oven ApplicationScenarioA master chef bakes bread at 350°F for 30 minutes. He wants the oven at

Auto-tuningAuto-tune automatically sets PID parameters for your system.1. Press . and , for three seconds.2. You'll see [`Aut].3. Press and hold

Watlow Series 935A User’s Manual 33Fine Tune the PID Settings1. Set [Pb`h] and [Ct`h] in degrees.2. If Proportional Band Heat [Pb`h] = 0, Set Hysteres

34 Watlow Series 935A User’s ManualCalibrating the 935ACalibration requires a precision millivolt source with thermocouple compensation, an adjustable

Watlow Series 935A User’s Manual 35Thermocouple and Remote Set Point Input Field Calibration ProcedureEquipment Required:• Type “J” Reference Compensa

36 Watlow Series 935A User’s ManualErrors and TroubleshootingSet up an input failure operation mode at the [FAIL] prompt in the [CnFG] menu; choose bu

Watlow Series 935A User’s Manual 37To Troubleshoot Sensor• Remove sensor wires from Terminals 1 and 2.• For a thermocouple sensor Series 935A, place a

2 Watlow Series 935A User’s ManualWelcome to the Watlow Series 935A!General DescriptionThe Series 935A is a temperature controller with countdown time

38 Watlow Series 935A User’s ManualMounting22.2mm(0.874 in.)+0.3mm,-0.0mm(+0.012 in.,-0.000 in.)12.7mm(0.500 in.)12.7mm(0.500 in.)57.7mm(2.272 in.)34.

Watlow Series 935A User’s Manual 39DimensionsFigure 11- Series 935A Dimensions53.1mm (2.09 in.)29.0mm(1.14 in.)Panel Cutout 44.96mm 101.6mm (4.00 in.

40 Watlow Series 935A User’s ManualInstallation Procedure1. Make a panel cutout using the dimensions in Figure 9, p.38.2. Insert the 935A into the cut

Figure 14- Terminal Block Removal Procedure1. Press in on sides of cover to release the terminal cover hooks.2. Move your grip rearward slightly, then

42 Watlow Series 935A User’s ManualWiring a 935AFigure 15 - Wiring the Series 935A∫WARNING: All electrical wiring and fusing must conform to local and

Watlow Series 935A User’s Manual 43∫WARNING: All electrical wiring and fusing must conform to local and national electric codes. Contact local authori

44 Watlow Series 935A User’s ManualSystem Wiring ExamplesFigure 16 - Series 935A System Wiring Examples∫WARNING: All electrical wiring and fusing mus

Watlow Series 935A User’s Manual 45Figure 17 - Series 935A Ladder Diagram Wiring Example∫WARNING: All electrical wiring and fusing must conform to lo

46 Watlow Series 935A User’s ManualGlossaryAlarmA condition, generated by the controller, indicating that the pro-cess has exceeded or fallen below th

Watlow Series 935A User’s Manual 47Ready AcknowledgeA Series 935A countdown timer start choice that pre-initiates thetimer with a down key press, and

Watlow Series 935A User’s Manual 3Output 1Output 2RDY21SETSingleInputDual OutputSingle InputType J, K, T, N, S, E Thermocouple, 1° RTD, or 0.1° RTDOut

48 Watlow Series 935A User’s ManualIndexAAuto-tune [`Aut] 10, 32AlarmsAlarm High [`AhI] 10, 24Alarm Low [`ALO] 10, 24Alarm Type [AltY] 24Clearing Alar

Watlow Series 935A User’s Manual 49SSet Point Change 7Local [`L-r] 10Lock [SLOC] 18Range High [``rh] 20Range Low [``rL] 20Remote Set Point [`rSP] 22Re

50 Watlow Series 935A User’s ManualSpecificationsSpecifications (2191)Control Mode• Auto-tune PID.• PID, PD, PI, on/off.• Countdown timer; hours:minut

Watlow Series 935A User’s Manual 51Ordering a 935AOrdering Information (2192)Single thermocouple or RTD (DIN) input, dual output, singlie display temp

52 Watlow Series 935A User’s ManualDeclaration of ConformitySeries 935WATLOW Winona, Inc.1241 Bundy BoulevardWinona, Minnesota 55987 USADeclares that

Watlow Series 935A User’s Manual 53Notes

54 Watlow Series 935A User’s ManualNotes

Watlow Series 935A User’s Manual 55935A Software MapOperations MenuPrompt Range Default Hidden if * Your Settings*NOTE:All prompts, except[``SP] and [

56 Watlow Series 935A User’s ManualOperations MenuPrompt Range Default Hidden if * Your Settings[`tA9] = [P```];or if [Pb`h] ≠ 03°F or 2°C[```1] [`999

Watlow Series 935A User’s Manual 57PID MenuPrompt Range Default Hidden if * Your Settings[`tA9] = [P```];or if [Pb`c] ≠ 03°F or 2°C[```1] [`999][```1]

4 Watlow Series 935A User’s ManualRead or changeYou can simply:• Read the normally displayed actual temperature,or…• Press and hold ß to read the set

58 Watlow Series 935A User’s ManualPID MenuPrompt Range Default Hidden if * Your Settings[`tA9] = [P```]0°F or 0°C[-999] [9999][-9(9] [99(9]Select a v

Watlow Series 935A User’s Manual 59Configuration MenuPrompt Range Default Hidden if * Your Settings[`tA9] = [``C`]heat[hEAt] [COOL][ALM] [`rSP][`FPL]

60 Watlow Series 935A User’s ManualConfiguration MenuPrompt Range Default Hidden if * Your Settings[`tA9] = [``C`];or if[`Ot1] and/or [`Ot2] ≠ [ALM]3°

Watlow Series 935A User’s Manual 61Configuration MenuPrompt Range Default Hidden if * Your Settings[`tA9] = [``C`];or if[`Ot2] ≠ [thM] or[tMS]0°F or 0

62 Watlow Series 935A User’s ManualConfiguration MenuPrompt Range Default Hidden if * Your SettingsAlways appearsP[PCOA] [`COA][PCO`] [`CO`][PC`A] [`C

Watlow Series 935A User’s Manual 63Notes

64 Watlow Series 935A User’s ManualNotes

About Watlow WinonaWatlow Winona is a U.S. division of Watlow Electric Manufacturing Company, St. Louis,Missouri, a manufacturer of industrial electri

How to Reach UsQuality andMission Statement:Watlow Winona will be theworld’s best supplier ofsuperior measurement andcontrol products, services,and sy

RDY21SETSeven-segmentalphanumeric display:• Shows process value,set point information, time, or• Shows prompt name or value, depending on the key comb

6 Watlow Series 935A User’s ManualBegin Controlling1. Apply power to the system.A properly-wired Series 935A will begin controlling the thermal system

Watlow Series 935A User’s Manual 7Change Set PointRDY21SETYour Series 935A displays the actual process temperature when it comes from the factory. You