Table of Contents
Advertisement
Quick Links
U.S. English
0600-0015-0001 Rev C
July 2000
Supersedes: 0600-0015-0001 Rev B
Series 935B
Temperature Controller
with Countdown Timer
User Levels:
• New User ...................................... Go to page 2
• Experienced User / Set-Up ........ Go to page 11
• Expert User ................................ Go to page 51
Installers:
• Mounting ..................................... Go to page 40
• Wiring Information .......................Go to page 44
1241 Bundy Boulevard, P.O. Box 5580, Winona, Minnesota USA 55987-5580
Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507, http://www.watlow.com
TOTAL
CUSTOMER
SATISFACTION
3 Y ear Warranty
ISO 9001
Registered Company
Winona, Minnesota USA
$15.00
Advertisement
Table of Contents
Related Manuals for Walton 935B Series
Summary of Contents for Walton 935B Series
- Page 1 Series 935B Temperature Controller with Countdown Timer User Levels: • New User ........Go to page 2 • Experienced User / Set-Up ..Go to page 11 • Expert User ........ Go to page 51 Installers: TOTAL • Mounting ........Go to page 40 •...
- Page 2 ç Safety Information in this Manual Note, caution and warning symbols appear throughout this book to draw your attention to important operational and safety information. Safety Alert A “NOTE” marks a short message to alert you to an important detail. CAUTION or A “CAUTION”...
-
Page 3: Table Of Contents
Where to find it… Table of Contents Table # ............Page 1 Output Functions ........5 Item ............. Page 2 Error Messages & Action ....... 10 Introduction ............4 3 Software Organization ......11 How Keys Work ..........6 4 Operations Menu Overview ....13 Begin Controlling .......... -
Page 4: Introduction
Introduction Welcome to the Watlow Series 935B! General Description The Series 935B is a temperature controller with countdown timer for industrial, commercial, or scientific applications. It offers 1/32 DIN panel-mounting, digital indication, single temperature sensor input from a thermocouple or RTD, and dual control outputs. -
Page 5: Output Functions
Figure 1 - Series 935B Input and Output Overview O u t p u t 1 S in g le R D Y In p u t O u t p u t 2 S E T Dual Output Single Input Type J, K, T, N, S, E Thermocouple, 1°... -
Page 6: How Keys Work
Press & read or press & change Reading or Changing Information is Easy You can simply: • Read the normally displayed actual temperature, or… • Press and hold to read the set point, ß or… 1. Press and hold simultaneously for three seconds to move to a software menu. 2. -
Page 7: Front Panel Functions
Figure 2 - Series 935B Front Panel Functions Seven-segment LED 1: alphanumeric display: Lit when Output 1 is active. • Shows process value, set point information, time, or LED 2: • Shows prompt name or value, depending on the key Lit when Output 2 is active. -
Page 8: Begin Controlling
Begin Controlling To Begin Controlling: 1. Apply power to the system. A properly-wired Series 935B will begin controlling the thermal system as soon as you apply power to it. 2. Look at the Series 935B’s display. It is reading actual temperature, set point temperature, or time. •... -
Page 9: Set Point Change
Change Set Point To Change the Set Point: Your Series 935B displays the actual process temperature when it comes from the factory. You can change it to normally display the set point or time. Go to p. 18, see [dISP]. 1. -
Page 10: Simple Error / Response
Respond to a simple error If You See An Error Code: 1. Be aware that most errors are input (sensor) related. 2. Read the table below and follow its recommendations. Table 2 - Error messages and recommended action Display Probable Cause Recommended Action Reversed thermo- Change the sensor... -
Page 11: Software Map; Learn
Learn Easy Software Map Software Organization • The Series 935B has three primary menus in addition to a normal display. • The software reverts to the normal display after 60 ± 5 sec. with no key action. Table 3 - Software Organization Display Actual Temperature, Set Point, or Time Remaining •... -
Page 12: Operations Menu; Learn
Learn the Operations Menu The Series 935B Operations Menu is the first menu you encounter when you press the keys simultane- ously for three seconds. The Operations Menu provides a location to initiate the following actions or complete the following tasks: •... -
Page 13: Operations Menu Overview
Table 4 - Operations Menu Overview To enter the Operations Menu, press the keys simultaneously for three seconds. Auto-tune - Start the auto-tune action to automatically select a set of viable PID values; [tunE] will flash during auto-tuning. [``no] [`YES] [`Aut] Alarm Low - Select a low alarm point, adjustable between Off, Range Low and Alarm High. -
Page 14: Pid Menu; Learn
Learn the PID Menu Choosing a PID Setting Strategy You may rely solely on the Auto-tune [`Aut] function (p. 34) and factory defaults to determine PID values for your system, or you may use auto-tuning and additional manual adjustments. You must select dead band [``db] calibration offset [`CAL]... - Page 15 Setting PID Menu Values • Proportional Band, Heat and Cool [Pb`h] and [Pb`c]: Select a value (degrees) to set up band on either side (±) of the Primary Set Point in which the heat and/or cool proportioning function(s) will be active. For on/off control, set [Pb`h] [Pb`c]...
-
Page 16: Pid Menu Overview
Learn the PID Menu - Details Table 5 - PID Menu Overview Set-Up Heat Proportional Band Heat - Select a heat proportional band value. [```0 [`999] [```0] [`555] [``)0] [99(0] [``)0] [55%0] [Pb`h] 0°F to 999°F, or 0°C to 555°C, or 0.0°F to 999.0°F, or 0.0°C to 555.0°C Hysteresis Heat - Select a heat ON/off control switching hysteresis. - Page 17 Set-Up General Integral Function - Select an integral value. [`)00] [9(99] [``It] 0.00 to 99.99 minutes/repeat Derivative Function - Select a derivative value. [`)00] [`(99 [``dE] 0.00 to 9.99 minutes Calibration Offset - Select a calibration offset value. [-999]] [9999] [-9(9] [99(9 [`CAL] -999°...
-
Page 18: Configuration Menu; Learn
Learn the Configuration Menu The Configuration Menu is the second sub-menu in the Operations Menu. Use it to set Inputs, Ranges, Output Types, Alarms, Timer, Failure Mode, and Lockouts. To go to the Configuration Menu: 1. Go first to the Operations Menu by pressing simultaneously for three seconds. - Page 19 NOTE: Access to Configuration Menu varies with lockout function. See p. 21. Alarm Hysteresis - Choose alarm switching band. [```1[ [`999] [```1] [`555] [``)1] [99(0] [``)1] [55%0] [AhyS] 1°F to 999°F, or 1°C to 555°C, or 0.1°F to 999.0°F, or 0.1°C to 555.0°C Alarm Latch - Choose latching or non-latching alarms.
-
Page 20: Lockout Functions
Using Lockout Functions Configuration Menu Key Lockout Information [``In] The Series 935B offers three different security, or “lockout,” options. Set up Input Type one or all three lockout options in the Configuration Menu. [`C_F] Celsius/Fahrenheit [``rL] Input Range Low [``rh] •... -
Page 21: Lockout Options
Table 7 - Series 935B Lockout Options Three [````] [slOC] = No Lockout [`fpl] Lockout [PCOA] Options = Fully Locked Detailed = Operator's Perspective Front Panel Lockout Set Point Lockout Security Tag [[```A] [`rts] [SLOC] [`tAG] [`fpl] [``no] [`YES] [P```] [`C``] [``O`] View Process View Set Point Change Set Point... -
Page 22: Setting Up Inputs And Outputs
Setting Inputs and Outputs Configuration Menu Key Input/Output Set-up Information [``In] • All initial input and output set-up occurs in the Configuration Menu. Input Type • Indication of °C or °F units of measure occurs only in the [`C_F] prompt. [`C_F] •... -
Page 23: Setting Inputs & Outputs
NOTE: Access to Configuration Menu varies with lockout function. See p. 21. Configuration Menu Table 8 - Setting Inputs and Outputs Input Type - Choose sensor type. [``In] [```J] [```H] [```t] [```n] [```E] [```S] [`rtd] [`r†d] J t/c K t/c T t/c N t/c E t/c... -
Page 24: Using Remote Timer Start Input
Using Remote Timer Start Input Configuration Menu To Set Up Remote Timer Start… [``In] 1. Wire the control per the example below and the information on p. 44-45. Input Type 2. Make [``In] [`C_F] choices, then [`C-F] 3. Select [`tmr] at the [`rts] prompt. -
Page 25: Front Panel Lockout
Using Front Panel Lockout To Set Up Front Panel Lock… Configuration Menu [``In] 1. Install an external switch. Input Type 2. Wire the control per the example below and the information on p. 44-45. [`C_F] 3. Go to [CnFG] menu, then [`rts] prompt, and choose [`FPL]. -
Page 26: Alarms; Learn
Learning Alarms Configuration Menu Key Alarm Information [``In] Alarms signal an excursion from normal operating conditions. In general, Input Type audible alarms or lights connected to alarm outputs will signal a problem. In [`C_F] the 935B the front panel LED “1” or “2” indicates an alarm with [``hI] [``LO] flashing on the main display. -
Page 27: Alarm Functions
• To Clear an Alarm that is latched or “silence-able’ requires the operator to press the ß key after the process returns to a safe, or non-alarm condition. Non-latching alarms self-clear. See Table 11: [`LAt] and [`SIL], p. 29. Table 10 (below) and Table 11 (p. 29) illustrate the Series 935B alarm features. Table 10 - Alarm Functions Deviation Alarm Process Alarm... -
Page 28: Alarms; Setting And Clearing
Setting and Clearing Alarms ç To Set Up Series 935B Alarms… Configuration Menu [``In] 1. Plan an alarm strategy. What do you Input Type want to happen when an alarm occurs? [`C_F] 2. Wire the appropriate control output, Output 1 or Output 2, and associ- ated switching and annunciators. -
Page 29: More Alarm Functions
Table 11 (below) and Table 10 (p. 27) illustrate the Series 935B alarm features. Table 11 - Alarm Functions Table 11 - Alarm Functions [``no] [`yes] [`lat] S E T A latched alarm requires the Latching alarm operator to press the ß... -
Page 30: Timer; Learn
Learn the Countdown Timer Configuration Menu Key Timer Information [``In] • The timer requires Output 1 to work as either a heat or as a cool output. Input Type • The 935B timer is a function of Output 2, a switched dc output. [`C_F] •... -
Page 31: Timer Functions/Settings
Table 12 - Series 935B Timer Functions/Settings Timer set-up available only when Choose time in hr:min or min:sec. Delay ON Delay OFF Signal ON Signal OFF Output 2 Timer Output Function; Choose one of four possible output actions Output 2 is ON Output 2 is OFF Output 2 is OFF Output 2 is ON... -
Page 32: Timer; Setting
Setting the Countdown Timer Configuration Menu To Set Up the 935B Timer… [``In] 1. Plan a timer strategy. Input Type 2. Wire the Output 2 control output, associated [`C_F] switching devices and annunciators. See p. 44-45. Celsius/Fahrenheit 3. Go to the 935B’s Configuration Menu [CnFG]. [``rL] 4. -
Page 33: Timer Example
Timer Example Application Convection Oven Application Scenario A master chef bakes bread at 350°F for 30 minutes. He wants the oven at the proper temperature with an indication when it is ready to begin baking. He isn't concerned if the oven is 10° cool at first. After he loads the oven, the chef wants to start the countdown time by pressing a key. -
Page 34: Auto-Tuning
Auto-tuning Operations Menu Auto-tuning the Series 935B [`Aut] Auto-tune automatically sets PID parameters for your system. Auto-tune 1. Press for three seconds. [`ALO] 2. You'll see [`Aut [tune] Alarm Range Low 3. Press and hold ß, then select [`YES] with or ,. -
Page 35: Pid Fine Tuning
Tweaking PID Settings PID Menu 1. Set [Pb`h] [Ct`h] in degrees. 2. If Proportional Band Heat [Pb`h] = 0, Set Hysteresis Heat [HySh]. The Series 935B will Set up Heat: provide on/off control with the hysteresis value selected, and no proportioning action. [Pb`h] 3. -
Page 36: Calibrating
Calibrating the 935B Calibration Key Information Calibration Menu [tc50] Calibration requires a precision millivolt source with tc50 thermocouple compensation, an adjustable 0-10 volt source, and a decade resistance box. [tc00] • [tr50] [tr00] calibrate the thermocouple span. tc00 • [``tc] calibrates the ambient compensation. - Page 37 Calibrating the 935B Thermocouple Input Field Calibration Procedure Equipment Required: • Type “J” Reference Compensator with reference junction at 32°F/0°C, or Type “J” Thermocouple Calibrator set at 32°F/0°C. • Precision millivolt source, 0-50mV min. range, 0.01mV resolution. Set Up: 1. Connect 100-240VÅ (ac) to Terminal 7 and Terminal 8. 2.
-
Page 38: Errors And Troubleshooting
Errors and Troubleshooting Configuration Menu Key Error Information [``In] Set up an input failure operation mode at the [FAIL] prompt in the [CnFG] menu; choose bumpless Input Type transfer [bPLS] for smooth output action transition to percent power control, or select a percent power [`C_F] output value. -
Page 39: Possible Error Codes
Table 13 - Possible Displayed Error Codes and Actions Display Probable Cause Recommended Action [`Er1] Reversed thermocouple Change the sensor connection + to –. leads on Terminals 1 and 2. under flow [`Er2] Sensor type Go to In prompt, check selection (see p. 22), Sensor mismatch or open RTD. -
Page 40: Mounting
Mounting Figure 9- Panel Cut-out Dimensions Panel Thickness 0.060" to 0.38" (1.5 mm to 9.7 mm) 1.772" (45.0mm) 0.500" +0.024", -0.000" (12.7mm) (+0.6mm, -0.0mm) 0.874" (22.2mm) +0.012", -0.000" (+0.3mm, -0.0mm) 0.500" (12.7mm) Figure 10- Mounting Layout for Knockouts Layout for 1.374"... -
Page 41: Dimensions
Dimensions Figure 11- Series 935B Dimensions 1.770" (44.96mm) 2.09" (53.1mm) 1.14" (29.0mm) Panel Thickness Panel Cutout 0.060" to 0.38" (1.5mm to 9.7mm) Maximum Overall Depth 4.50" (114.3mm) 4.00" (101.6mm) 0.870" (22.10mm) 0.50" (12.7mm) Watlow Series 935B User’s Manual 41... -
Page 42: Installing
Installing the Series 935B Figure 12- Mounting, Case Top View and Collar Cross Section. Installation Procedure 1. Make a panel cutout using the tear-out 0 to 0.019 space (0 to 0.483 mm) mounting template, or the dimensions in Figure 9, p. 40. ezel Panel 2. -
Page 43: Terminal Block Removal
Terminal Block Removal Figure 14- Terminal Block Removal Procedure 1. Press in on sides of cover to release the terminal cover hooks. 2. Move your grip rearward slightly, then lift the terminal cover straight up. Watlow Series 935B User’s Manual 43... -
Page 44: Wiring
Wiring a 935B Input Wiring Figure 15 - Wiring the Series 935B Ó POWER – – WARNING: All wiring and fusing must conform to local and national electric codes. Contact local authorities for further information. Failure to comply with electric codes could 2-wire result in injury or death, or damage to property. -
Page 45: Wiring Examples
System Wiring Examples Ó WARNING: All electrical wiring and fusing must conform to local and national electric codes. Contact local authorities for further information. Failure to comply with electric codes could result in injury or death, or damage to property. Figure 16 - Series 935B System Wiring Examples 120VÅ... -
Page 46: Glossary
Glossary Alarm Idle Set Point Ready Band A condition, generated by the controller, Desired control value before and after timing Thermal area above and below primary set point indicating that the process has exceeded or period. in which the timer will count down. fallen below the set or limit point. -
Page 47: Index
Index Auto-tune [`Aut] ....12, 34 Hours/Minutes [thM] ..30-32 Set Point Alarms Hysteresis Change ..... . . 9 Alarm High [`AhI] . -
Page 48: Specifications
• Height Specifications • Length • Width Input Range Specifications—(1951) Specified temperature ranges represent the controller's oper- Control Mode ational span. • Auto-tune PID. • PID, PD, PI, on/off. Thermocouple • Countdown timer; hours:minutes, minutes:seconds. Type E -328 to 1470°F •... -
Page 49: Ordering Information
Ordering a 935B 9 3 5 B - 1 C C 0 - _ _ 0 _ Ordering Information—(1952) Single thermocouple or RTD (DIN) input, dual output, single display temperature control with time function Output 1/Remote Input C = Switched dc, logic signal, non-isolated Output 2 C = Switched dc, logic signal, non-isolated Power Supply... -
Page 50: Declaration Of Conformity
CE Compliant Product Declaration of Conformity Erklärt, daß das folgende Produkt: Deutsch Series 935 Beschreibung: Serien 935 Modellnummern: 935A or B - 1C (C D oder K) (0 oder 1) - (4 beliegibe Buchstaben) WATLOW CONTROLS Klassifikation: Regelsystem, Installationskategorie II, Emissionsgrad 1241 Bundy Boulevard Nennspannung: 100 bis 240 V~ oder 24 bis 28 V‡... -
Page 51: Advanced Software Map
935B Software Map Prompt Range Default Hidden if * Your Settings [``SP] [``rL] [``rh] 75°F or 23°C Appears always Primary Set Point Select a value, adjustable between Input Type Range Low and Input Type Range High. [`Aut] [``no] [`YES] [`tA9] [```A] Auto-tune Choose YES to Auto-... - Page 52 Prompt Range Default Hidden if * Your Settings [`Pid] [``no] [`YES] [`tA9] = [P```] PID Menu Choose YES to move to the PID Menu. [CnFg] [``no] [`YES] The front panel is locked out. Configuration Menu Choose YES to move to the Configuration Menu.
- Page 53 Prompt Range Default Hidden if * Your Settings [Ct`h] [``)1] [`6)0] 1.0 second [`tA9] = [P```]; Cycle Time Heat [``%0] [`6)0] or if Select a value between [Pb`h] = 0 0.1 and 60.0 seconds (Solid-State Relay or Switched DC) or 5.0 and 60.0 seconds (Electromechanical Relay).
- Page 54 Prompt Range Default Hidden if * Your Settings [Ct`c] [``)1] [`6)0] 5.0 seconds [`tA9] = [P```]; [``%0] [`6)0] or if Cycle Time Cool Select a value between [Pb`c] = 0 0.1 and 60.0 seconds or if (Solid-State Relay or [Pb`c] is hidden Switched DC) or 5.0 and 60.0 seconds (Electromechanical...
- Page 55 Prompt Range Default Hidden if * Your Settings [``In] [```J] J t/c [`tA9] = [``C`] [```H] K t/c Input Type [```t] T t/c [```N] N t/c [```E] E t/c [```S] S t/c [`rtd] 1.0°RTD [`rtd] 0.1°RTD [`C_F] [``°F] [``°C] [`tA9] = [``C`] Celsius/Fahrenheit Choose to indicate temperature in...
- Page 56 Prompt Range Default Hidden if * Your Settings [`Ot2] [hEAt] [COOL] none [`tA9] = [``C`] Output 2 Function [ALM] [`thM] [tMS] [nonE] Choose Heat, Cool, Alarm, Timer (Hrs:Min), Timer (Min:Sec) or No output action. [`rt5] [`off] [`fpl]] [`tA9] = [`0``] Remote Timer Start [tMr] Choose Off, Front Panel...
- Page 57 Prompt Range Default Hidden if * Your Settings [`tA9] = [``C`]; [`LAt] [``no] [`YES] Alarm Latch Choose YES for a or if Latching Alarm. [`Ot1] and/or [`Ot2] ≠ [ALM] [`SIL] [``no] [`YES] [`tA9] = [``C`]; Alarm Silencing Choose YES for a or if Silenced Alarm on start- [`Ot1] and/or...
- Page 58 Prompt Range Default Hidden if * Your Settings 00:01 [``St] [```1] [9(ƒ9] [`tA9] = [``C`]; Signal Time If [t1M] = [SGon] or or if [SGof], then select a [tIM] ≠ [SGon] or value between 00:01 and [SGof] 99:59 min:sec. [SLOC] [``no] [`YES] [`tA9] = [``C`] Set Point Lockout...
- Page 59 About Watlow Winona Watlow Winona is a U.S. division of Watlow Electric Manufacturing Company, St. Louis, Missouri, a manufacturer of industrial electric heating products since 1922. Watlow products include electric heaters, sensors, controllers and switching devices. The Winona operation has been designing solid-state electronic control devices since 1962, and has earned the reputation as an excellent supplier to original equipment manufacturers.
-
Page 60: How To Reach Us
How to Reach Us Your Authorized Watlow Distributor: TOTAL CUSTOMER SATISFACTION 3 Y ear Warranty Quality and Mission Statement: To position Watlow Winona as the world’s best supplier of superior thermal solutions, by exceeding the expectations of our customers, shareholders, and employees.