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Watlow Series 935B User’s Manual

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. Both outputs are fully

DIN-a-mite

®

compatible, and may operate in combinations of heat or cool, and alarm or timer.

Special Features

• Easy to use operator interface and user’s manual
• Compact panel footprint; 1/32 DIN size
• Water and corrosion proof; NEMA 4X / IP65 rated
• Reliable; built to UL, CUL approved safety standards with a three year warranty
• Accuracy with economy
• Universal power supply for worldwide application

Unique Features

The Series 935B is configured with dual dc

DIN-a-mite

®

compatible control outputs and a separate logic input for remote timer

start or front panel lock. The Series 935B timer functions include heat/timer or cool/timer countdown modes in hours:minutes or
minutes:seconds.

Introduction

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Содержание 935B Series

Страница 1: ...oller with Countdown Timer 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 U S English Now with Remote Timer Start and Ful...

Страница 2: ...your Watlow controller review all configuration informa tion to verify that your selections are consistent with your application inputs outputs alarms limits etc If the problem persists after checkin...

Страница 3: ...aration of Conformity 50 Advanced Software Map 51 Warranty Returns Inside Back Cover How to Reach Us Back Cover Table Page 1 Output Functions 5 2 Error Messages Action 10 3 Software Organization 11 4...

Страница 4: ...eat or cool and alarm or timer Special Features Easy to use operator interface and user s manual Compact panel footprint 1 32 DIN size Water and corrosion proof NEMA 4X IP65 rated Reliable built to UL...

Страница 5: ...e Output 2 Electromechanical Relay Switched dc or Solid state Relay Table 1 Valid Output Functions First select Output 1 Then select Output 2 Heat None Cool Alarm Timer Cool None Heat Alarm Timer Alar...

Страница 6: ...eously for three seconds to move to a software menu 2 Press and hold to display a choice or value 3 While continuing to press press or to choose new data or select a new value 4 Release and the arrow...

Страница 7: ...18 Clears a latched alarm LED 1 Lit when Output 1 is active LED 2 Lit when Output 2 is active RDY Lit when the process temperature is inside the timer ready band Up Increment Down Decrement Arrow Key...

Страница 8: ...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 To change set point go to p 9 The Series 935B will auto tune when you...

Страница 9: ...e 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 Press and hold 2 Press one of the arrow keys to alter the set point either upward or...

Страница 10: ...replace as broken wire necessary Electrical noise Cycle power to system See if error clears Check system for electrical interference Control is inoperable Check for line voltage at terminals 7 and 8 R...

Страница 11: ...et Configuration p 18 Set Inputs Functions Output Types Display Default Alarms Functions Timer Functions Failure Mode Lockout Functions yes yes To access the Operations Menu press the and keys simulta...

Страница 12: ...n Idle Set Point value in F or C between the range low rL and range high rh values The Idle Set Point is active both before and after the timing sequence The normal or Primary Set Point controls durin...

Страница 13: ...igh Select a high alarm point adjustable between Alarm Low and Range High or OFF ALO Alarm Low Countdown Timer Select a countdown time duration 0 0 9959 00 00 to 99 59 Hrs Min or Min Sec Idle Set Poin...

Страница 14: ...ough the Operations Menu with until you see the Pid prompt 3 While pressing to display no choose YES with or 4 Release to see the first PID prompt NOTE Access to the PID Menu and the prompts there var...

Страница 15: ...tate Relay 0 1 to 60 0 seconds Default 5 0 seconds Range Electromechanical Relay 5 0 to 60 0 seconds Default 30 0 seconds Dead Band db Dead Band adjusts the effective cool set point above the primary...

Страница 16: ...Switched dc Electromechanical Relay Dead Band Select a dead band value 0 999 0 555 0 99 0 0 55 0 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 Set Up Cool Proportional Band Coo...

Страница 17: ...u and the prompts there varies with lockout function and output set up The PID Menu is locked out when the 935B leaves the factory Lockout function the Lockout Tag tAg function masks menus from view i...

Страница 18: ...d Input Range High Input Range High Select highest displayable set point Ranges p 23 Rl In Select a value highest displayable set point between Input Type Range High and Input Range Low Output 1 Funct...

Страница 19: ...r Function Choose the start timer conditions IMd Immediate start on a press rdy press and Actual temp is inside the Ready Band rdYA press plus Actual temp is inside the Ready Band then acknowledge wit...

Страница 20: ...all or part of the four digit binary acronym PCOA Proportional Configuration Operation Auto tune you can choose to mask those items from view and therefore from change For example In the Configuration...

Страница 21: ...No Yes Yes View Change PID No Yes Yes No Yes Yes Yes RDY 2 1 SET fpl PCOA No Lockout Fully Locked Operator s Perspective Set Point Lockout Front Panel Lockout Security Tag Three Lockout Options Detail...

Страница 22: ...Switch closed start Select this feature with rts tmr Output 2 sets timer interval in hours minutes thM or minutes seconds tMS Display Default dISP lets you choose the primary last 2 characters and se...

Страница 23: ...Front Panel Lock or Timer Hrs Min off fpl tmr Off Front Panel Timer Lock Display Default Choose the primary last 2 characters and secondary first 2 characters default displays Press to toggle to the...

Страница 24: ...electric codes Contact local authorities for further information Failure to comply with electric codes could result in injury or death or damage to property Configuration Menu In Input Type C F Celsi...

Страница 25: ...hange Set Point No Auto tune No Reset Alarm Yes View or Change Operation No Menu Except Config Menu View or Change Configuration No Menu Except Tag View or Change PID Menu No RDY 2 1 SET fpl Table 9 U...

Страница 26: ...an alarm condition occurs and de energize it when cleared Use this type to activate external devices such as audible alarms or lights See Table 10 ALtY next page Normally Closed dEnc or Prnc Alarms de...

Страница 27: ...occurs Alarm High Region Alarm Low Region 0 Silenced Alarm State LED off Alarm Output Status Power Off State LED off Alarm Output Status Deviation Alarm Process Alarm Watlow Series 935B User s Manual...

Страница 28: ...ALty choice Failure to do so could result in damage to equipment and property WARNING Do not rely on the Series 935B alarms to provide redundant temperature limit control Use correctly specified prop...

Страница 29: ...mperature returns to within the safe area At the Range Low value a press displays off and ahi disables At the Range High value a press displays off and ahi disables lat sIl alO ahI no no yes yes A lat...

Страница 30: ...Ot1 heat hEAt or cool COOL Output 2 Ot2 timing interval hours minutes thM or minutes seconds tMS Remote Timer Start rts choices 1 Manual start off 2 Remote Timer Start tmr 3 Front Panel Lockout fpl Ti...

Страница 31: ...controls the process during the Timer sequence Operations Menu Output 2 is ON before timing OFF during tim ing ON after timing Idle Set Point Timer Ready Band Start Timer Function Output 2 is OFF befo...

Страница 32: ...ady band rdY Ready Acknowledge rdYA or Power PWr 9 If you chose rdY or rdya then select a ready band rdy value 10 If you chose SGon or sgof then select a signal time St value 11 Go to the 935B s Opera...

Страница 33: ...t rdy value and the key is pressed rdY 10 Ready band 10 F St 10 Output 2 turns ON for 10 sec at the end of the timing cycle Operations Menu Set up tMr 3000 Bake time 30 minutes IdLE 75 The set point t...

Страница 34: ...point by 20 to 30 F or 11 to 17 C Observe approach to set point If load temperature overshoots increase dE by 0 50 minute Raise set point by 20 to 30 F or 11 to 17 C and watch approach again Repeat un...

Страница 35: ...nd Cool Pb c 0 Set Hysteresis Heat HYSc The Series 935B will provide on off control with the hysteresis value selected and no proportioning action 8 Proportional Bands should be decreased for tighter...

Страница 36: ...hermocouple compensation an adjustable 0 10 volt source and a decade resistance box tr50 and tr00 calibrate the thermocouple span tc calibrates the ambient compensation r380 and r 15 calibrate the RTD...

Страница 37: ...mV source to 50 00mV dc Allow 10 seconds for sources to stabilize Press and hold Press or until YES appears Release 3 Press Tc00 shall be displayed 4 Set the mV source to 0 00 mV dc Allow 10 seconds f...

Страница 38: ...ntroller If the error persists call the factory Be aware of the difference between U S and European thermocouple color colour codes Reversed polarity input leads is one of the most common errors Incor...

Страница 39: ...and actual temperatures point to no output action check output configurations as described on p 23 Check wiring p 44 Measure Output Terminals Load on State Load off State C Output 1 3 4 LED 1 on LED 1...

Страница 40: ...0 024 0 000 0 6mm 0 0mm Panel Thickness 0 060 to 0 38 1 5 mm to 9 7 mm Layout for four 1 32 DIN knockouts with punch and die Mounting Figure 9 Panel Cut out Dimensions Figure 10 Mounting Layout for Kn...

Страница 41: ...anual 41 2 09 53 1mm 1 14 29 0mm Panel Cutout 1 770 44 96mm 4 00 101 6mm 0 50 12 7mm Maximum Overall Depth 4 50 114 3mm Panel Thickness 0 060 to 0 38 1 5mm to 9 7mm 0 870 22 10mm Dimensions Figure 11...

Страница 42: ...ges See Figure 12 Each tooth is staggered at a different depth from the front so only one of the tabs on each side is ever locked into the ridges at any time 6 Look at Figure 13 you see that the tabs...

Страница 43: ...er s Manual 43 Terminal Block Removal Figure 14 Terminal Block Removal Procedure 2 Move your grip rearward slightly then lift the terminal cover straight up 1 Press in on sides of cover to release the...

Страница 44: ...the control system and possibly damage the controller and product Output 1 Wiring Output 2 Wiring NOTE Both Output 1 and Output 2 are DIN a mite compatible Internal Circuitry Output 2 Switched DC C 5V...

Страница 45: ...duct Figure 17 Series 935B Ladder Diagram Wiring Example 5 1 3 120V ac L1 2 L2 1 1 1 11 17 12 13 14 15 1 13 14 10 11 4 2 3 5 2 2 2 2 16 18 R 1CR Series 92 92A3 1DJ1 0000 Limit Control 10 8 9 1 CR 1 He...

Страница 46: ...shoot and undershoot PID Menu The first software sub menu of the Series 935B Operations Menu provides a location to manually set values for proportional band hysteresis cycle time integral derivative...

Страница 47: ...Type In 23 Integral It 15 17 K Keys 7 L Latch LAt 19 26 29 Lockout Functions 20 Front Panel FPL 20 25 Security Tag tAG 20 Set Point SLOC 20 M Minutes Seconds tMS 19 30 Mounting 40 O Operations Learnin...

Страница 48: ...rt function or front panel lock depending on menu selection Input Range Specified temperature ranges represent the controller s oper ational span Thermocouple Type E 328 to 1470 F 200 to 799 C Type J...

Страница 49: ...d Displays G Green Displays Table 15 Input Range Information J t c 32 to 1382 F or 0 to 750 C K t c 328 to 2282 F or 200 to 1250 C T t c 328 to 662 F or 200 to 350 C N t c 32 to 2282 F or 0 to 1250 C...

Страница 50: ...siguiente Espa ol Designaci n Serie 935 N meros de modelos 935A or B 1C C D o K 0 o 1 Cualquier combinaci n de cuatro n meros y letras Clasificaci n Control Categor a de instalaci n II Grado de Contam...

Страница 51: ...Type tA9 O or if Ot2 thM or tMs 0 0000 Select a countdown time value adjustable between 00 00 and 99 59 hrs mins or min sec tMr Countdown Timer tA9 O or if Ot1 and Ot2 ALM Type J Range High RL0 Selec...

Страница 52: ...9 0 F or 0 1 C to 555 0 C hYSh Hysteresis Heat tA9 P or if Ot1 and or Ot2 hEAt 25 F or 17 C 0 999 0 555 0 99 0 0 55 0 Select a value in whole degrees 0 F to 999 F or 0 C to 555 C or in tenths of degre...

Страница 53: ...999 0 F or 0 0 C to 555 0 C Pb c Proportional Band Cool tA9 P or if Ot1 cool and Ot2 hEAt or if Ot1 hEAt and Ot2 cool 0 F or 0 C 0 999 0 555 0 99 0 0 55 0 Select a value in whole degrees 0 F to 999 F...

Страница 54: ...e between 0 00 and 9 99 minutes dE Derivative Function tA9 P or if Pb h 0 or if Pb h is hidden and if Pb c 0 or if Pb c is hidden 5 00 minutes repeat 0 9 99 Select a value adjustable between 0 0 and 9...

Страница 55: ...1 Function tA9 C Type J range high value rL In Select a value between Input Type Range High and Input Range Low rh Range High tA9 C Type J range low value In rh Select a value between Input Type Rang...

Страница 56: ...or Deviation normally open ALtY Alarm Type tA9 C Ac Ac AcSP Act1 t1Ac t1SP Choose the primary last 2 characters and secondary first 2 characters Default displays Press to toggle to the secondary disp...

Страница 57: ...rdYA PWr Choose Immediate Ready Band Ready Band Acknowledge or Power Strt Start Timer Function tA9 C or if Ot2 thM or tMS Delay OFF dLon dLoF SGon SGoF Choose Delay ON Delay OFF Signal ON or Signal OF...

Страница 58: ...nus functions that will not be displayed and therefore cannot be changed P PID Menu C Configuration Menu except tag O Operations Menu except CnFg A Auto tune tA9 Lockout Tag tA9 C no no YES Choose YES...

Страница 59: ...ip for 36 months after delivery to the first purchaser for use providing that the units have not been misapplied Since Watlow has no control over their use and sometimes misuse we cannot guarantee aga...

Страница 60: ...Zhong Shan Hong Qiao Cointek Bldg Fl 4 Unit P Shanghai 200051 China Telephone 86 21 6229 8917 Fax 86 21 6228 4654 Watlow Japan Ltd K K Azabu Embassy Heights 106 1 11 12 Akasaka Minato ku Tokyo 107 005...

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