User`s Manual Series 365 Watlow Controls
Contents
1. High limit with manual reset High limit with auto reset Low limit with manual reset Low limit with auto reset Solid state relay Form A 0 5A with contact suppression Only available with ON OFF or PI control Switched DC open collector non isolated Only available with ON OFF or PI control Electromechanical relay Form C 5A Warranted to 100 000 cycles Electromechanical relay Form C 10A Warranted to 100 000 cycles Solid state relay Form A 0 5A without contact suppression Only available with ON OFF or PI control Input and Range Thermocouple 601 J 32 to 600 or 0 to 3157 602 J 32 to 1382 F or 0 to 7507 603 K 32 to 2282 or 0 to 1250 604 T 150 to 662 F or 66 to 350C 605 T 328 to 150 or 200 to 66 C 606 Pt2 32 to 2543 F or 0 to 13957 607 S 32 to 2732 or 0 to 1500 608 R 32 to 2732 F or 0 to 1500 RTD 101 RTD 328 to 1112 F DIN 102 RTD 328 to 1112 F JIS Line Voltage 1 120VAG 2 240VAC Overlay 00 Standard XX Custom Model Number WATLOW Series 365 User s Manual 3 Installation Figure 1 Series 365 Multiple Panel Cutout Dimensions AN wane The Series 365 Temperature Limit Switch should be mounted in an inconspicuous location to discour age unauthorized changes to the set point Only approved and appropriate person nel should have the authority to change the set point on the limit switch Failure to comply wi2. Check the AC input connections If not present or proper connect per Power Wiring See Page 6 A faulty unit Contact the factory The load will not turn OFF The polarity is reversed on the T C Connect per Input Wiring See Page 7 A faulty unit Remove power to the control and the control from the system Apply power to the system with the control removed If the load turns OFF return the control to the factory If the load remains ON there are other problems in the system that must be resolved Consult the factory The unit is not con trolling to set point The unit is out of calibration Refer to the calibration procedure which applies to your control See Page 11 or 12 WATLOW Series 365 User s Manual 13 Automatic Reset Integral Used in proportional control systems to automatically pick up any sys tem droop This action may be adjustable or fixed and adjusts the output level to obtain agreement between actual process temperature and controller set point Automatic Reset on Power Loss The limit con trol does not recognize the power outage as a limit condition When power is restored the output will energize automatically as long as a temperature limit condition does not exist Anti Reset Inhibits reset action when the actual process temperature is outside the proportional band Cycle Time Time interval between consecutive turn ons ON OFF In a heating
3. back of the panel getting it as tight as possi ble Make sure you cannot move the case within the cutout if you can you do not have a NEMA 4X seal 4 WATLOW Series 365 User s Manual 0 to 0 019 space 0 to 0 483 mm 3A Bezel External 7 Case Gasket 3B Panel n e ane Ridges Tabs SS Mounting Collar Teeth Mounting Collar Cross Section notice the offset teeth on each tab Now let s make sure we have a tight seal Use your thumb to lock the tabs into place while pressing the case from side to side Don t be afraid to apply enough pressure to install the control The tabs on each side of the collar have teeth which latch into the ridges See Figure 3B Each tooth is staggered at a different height so only one of the tabs on each side are ever locked into the ridges at any time Looking at Figure 4 you see that the tabs on one side of the collar correspond with those on the opposite side Make sure that the two corresponding tabs are the only ones locked in the ridges at the same time If the matching tabs are not holding the case at the same time you will not have a NEMA 4X seal You can make a visual check or use your finger nail to pull out on each tab Only one on each side is engaged and they must be corresponding as in Figure 4 The space between the bezel and panel must be between 0 and 0 019 0 48mm Make sure that the two correspond ing tabs below are locked in t
4. control Figure 11 Switched DC Wiring Electromechanical Relay Form C With Contact Suppression 5 Amps 10 Amps Figure 12 Electromechanical Relay Wiring 8 WATLOW Series 365 User s Manual 365 D 365_ E _000 _ _000 L1 External Load L2 System Example Figure 13 System Wiring Example L1 120 VAC i L2 S Indicator on when limit trips x Earth Ground High Limit Mechanical Contactor 9 S a Jee 5 12 11 12 SSR 240 10G DC1 e 13 rs Fa 9 DC Input ol reesen _ S JI 9 Com E i Heater E o Pm 10 NO ml Se Red 365D D601 1000 Limit Control 988A 10CA AARR Rear View Process Sensor Limit Sensor 120VAC L1 L2 Series 988 988A 10CA AARR Temperature control Gr In SSR 240 10G DC1 pe Input Solid State Relay O ot Om 7 24 240VAC 11 E 2 Series 365 365D D601 1000 3 Limit Control 5 Zut 8 on ee O EE ToC a4 E Zei l i HEL 2 Hi Temp Light WATLOW Series 365 User s Manual 9 Tuning Procedure for PI Controls d NOTE 365B XXXX XOXX The tuning proce dure must be per Initial Settings formed with the e Proportional band 5 to 50 F 2 8 to 27 8 C control chassis in Maximum proportional band is clockwise CW the minimum is the case Make any counter clockwise CCW See Figure 14 potentiome
5. sure the RMA number is on the outside of the carton and on all paperwork returned Ship on a Freight Prepaid basis 3 After we recieve your return we will examine it and determine the cause for your action 4 In cases of manufacturing defect we will enter a repair order replacement order or issue credit for material A 20 percent restocking charge is applied for all returned stock controls and accessories 5 If the unit is unrepairable it will be returned to you with a letter of explanation Repair costs will not exceed 50 percent of the original cost Shipping Claims When you recieve your Watlow control examine the package for any signs of external damage it may have sustained enroute If there is apparent damage either outside the box or to its contents make a claim with the shipper immediate ly Save the original shipping carton and packing material Warranty The Watlow Series 365 is warranted to be free of defects in material and work manship 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 against failure Watlow s obligations hereunder at Watlow s option are limited to replacement repair or refund of purchase price any parts which upon examination prove to be defective within the warranty period specified This war ranty does not apply to damage resulting from
6. transportation alteration misuse or abuse This excludes mechanical relays which are warranted to 100 000 cycles WATLOW Series 365 User s Manual 15 Watlow Series 365 User s Manual Watlow Controls 1241 Bundy Blvd P O Box 5580 Winona MN 55987 5580 Phone 507 454 5300 Fax 507 452 4507
7. 2 8 to 27 8 C e Cycle time fixed Typically 6 seconds e Automatic reset fixed Typically 0 25 repeats minute e Latching e High or low factory selectable e Internal reset switch and or customer supplied remote reset switch Automatic or manual reset on power loss factory selectable Operator Interface e Sealed membrane front panel NEMA AN e LED indication of limit condition or status of load e Integral Setpot e Dial scale calibrated to compensate for sensor non linearities e Dual F amp C scales Input e Thermocouple or RTD available e Thermocouple may be grounded or ungrounded e Thermocouple automatic cold junction compensation 2 WATLOW Series 365 User s Manual e RTD input 2 or 3 wire platinum 1009 0 C cali brated for 3850 DIN 0 0038500 Q C or 3916 JIS 0 003916Q Q C curve e Thermocouple and RTD sensor break protection de energizes output to protect system Output e Solid state relay with contact suppression Form A 0 5A 24VAC min 264VAC max opto iso lated zero cross switching Minimum offstate impedance is 20KQ Only available with ON OFF or PI control Open collector switched DC signal provides a minimum turn ON voltage of 3VDC into a mini mum 500Q load maximum ON voltage not greater than 32VDC into an infinite load Only available with ON OFF or PI control Electromechanical relay Form C 5A 120 240VAC Minimum offstate impedance is 20KQ Warranted to 100 000 cycles Electro
8. application the output is turned full ON below set point and stays turned on until the process temperature reaches set point then the controller turns the output full OFF At this point depending on the design of the thermal system the process temperature overshoots the set point temperature by some degree As the load cools down below set point an amount equal to the switching sensitivity or differential the out put is once again turned full ON Proportional Band In a straight time proportional control system when the actual process tempera ture is below set point and outside the proportional band limit 100 power is applied to the load When the actual process temperature is above set point and outside the proportional band limit 0 power is applied to the load When the actual process temperature is within the proportional band the controller will proportion the amount of power applied to the load 0 to 100 14 WATLOW Series 365 User s Manual Switching Sensitivity or Differential In a heat ing application the output will de energize when the actual temperature reaches the set point tem perature The switching sensitivity or differential is the drop in temperature required to re energize the output Temperature Droop Phenomenon that occurs in a proportional control system without reset As the proportional band is increased the average process temperature may drop to a point that is not the set point te
9. he ridges at the same time When removing the mounting collar we suggest sliding a thin tool such as a putty knife or screwdriver under all three tabs on each side at once and pulling it back off the case Insert the control chassis into its case and press the bezel to seat it Make sure the inside gasket is also seated properly and not twisted The hardware installation is complete Proceed to the wiring section from here Installation Figure 3 Mounting Case Side View amp Collar Cross Section Mi NOTE To guarantee a proper NEMA 4X seal make sure the gasket between the panel and the rim of the case is not twisted and is seat ed properly PRESS FIRMLY Figure 4 Case Rear View and NEMA 4X Seal Example WATLOW Series 365 User s Manual 5 Power Switches Internal Heat Cool Switch Location Figure 5 365A ____ _ 000 and 365B ____ _000 Heat Cool Switch Settings e DEE Heat Cool Switch Removing the ee Al H Series 365 chassis a Ce from its case will E i make changing the Heat Mode Cool Mode Heat Cool switch switch toward switch toward easier the back of the front of the control the control hes Sell Bottom View Power Wiring 100 120VAC 365 _ ___ _ 1000 Jd NOTE and The line voltage is determined by your model number 208 240VAC 365 ____ 2000 Figure 6 120 and 240VAC Power Wiring Reset Switch Customer Supplied Limit versions onl
10. ired s 1KQ Decade Box Setup 1 Wire your control for the correct line voltage See power wiring on Page 6 Figure 6 2 Connect the decade box to the S1 and S2 terminals on the Series 365 Terminals 2 and 3 See Page 7 Figure 9 3 Make sure the heat cool switch is in the correct position for your application See Page 6 Figure 5 Apply power 4 Refer to Table 2 below for values that apply to your unit s range code Range 328 to 1112 F 328 to 1112 F Procedure am famam 1 Set the decade box to the Low Ohms value Turn the setpot fully CCW Adjust the Low pot until the unit just fully de energizes BR Potentiometer 2 Set thedecade box to the High s Ohms value Turn the setpot fully CW l Adjust the High pot until the unit just fully A de energizes High Potentiometer 3 Repeat Steps 1 and 2 as necessary until pe aj no further adjustment is needed a Bottom View WATLOW Series 365 User s Manual Problem Probable Cause Troubleshooting Action Poor temperature control The proportional band is not adjusted properly Adjust the proportional band per Tuning See Page 10 The load will not turn ON 1 An open sensor Repair or replace 2 The load circuit is open Check the fuses circuit breakers load and wiring See Output Wiring Page 8 The AC input is not connected or is connected improperly
11. mechanical relay Form C 10A 120 240VAC Minimum offstate impedance is 20KQ Warranted to 100 000 cycles Solid state relay without contact suppression Form A 0 5A 24VAC min 264VAC max opto isolated zero cross switching Minimum offstate impedance is 31MQ Only available with ON OFF or PI control Power e Factory selectable e 100VAC 10 50 60 Hz 5 e 120VAC 15 10 50 60 Hz 5 e 208VAC 15 10 50 60Hz 5 e 240VAC 15 10 50 60 Hz 5 e ANA power consumption Agency Approvals e UL CSA and FM pending e NEMA 4X rating pending Terminals e 6 compression universal head screw terminals accepts 20 14 gauge wire Accuracy e Calibration accuracy amp sensor conformity 1 of span maximum at 77 F 5 F 25 C 3 C ambient and rated line voltage e Accuracy span 1000 F 540 C minimum e Set point accuracy 3 of span maximum e Temperature stability Typically 5uV F ambi ent for thermocouple Typically lt 1 F from 32 to 130 F for RTD e Voltage stability 0 01 of span of rated line voltage Operating Environment e 32 to 130 F 0 to 55 C e 0 to 90 RH non condensing e Storage temperature 40 to 158 F 40 to 70 C Series 365 Closed loop control limit ON OFF or PI control RTD or thermocouple input 5A or 10A relay DC solid state 1 16 DIN case Control Type amoo Il ON OFF control heat or cool PI control heat or cool
12. mperature This action takes place even though the load has stabilized Temperature Oscillation or Hunting Occurs when the proportional band is too narrow or the system is upset by some outside source The actual process temperature is not controlled within the proportional band on its extreme temperature excursions Load temperature may never stabilize Control is either full ON or full OFF not within the proportion al band Zero Switching Load is activated only during the time period that the sine wave is going through zero This eliminates RFI and EMI radiation Applies to solid state outputs only d or da Musical notes are used to alert you to important details 3 The Warning symbol lightning bolt alerts you to a WARNING a safety hazard which could affect you and the equipment A TEX The Caution symbol exclamation point alerts you to a CAUTION a safety or func tional hazard which could affect your equipment or its performance General Returns 1 Call Watlow Customer Service 507 454 5300 for a Return Material Authorization RMA number before returning any item for repair We need this information e Ship to address e Bill to address e Contact name e Phone number e Ship via e P O number e Symptoms and or special instructions e Name and phone number of person returning the material 2 Prior approval and an RMA number is needed when returning any unused product for credit Make
13. nect the millivolt source to the thermocouple reference compensator and the compensator to the thermocouple input terminals on the Series 365 Terminals 3 and 5 See Page 7 Figure 8 3 Make sure the heat cool switch is in the correct position for your application See Page 6 Figure 5 Apply power 4 Refer to Table 1 below for values that apply to your unit s range code Range Millivolt Low High Low High Table 1 mV mV Thermocouple Input Calibration Values 600 F 0 315 C s 0 000 17 186 1382 F 0 750 C 0 000 42 283 2282F 0 1250 C S 0 000 50 633 662 F 66 350 C 3 711 17 816 150 F 200 66 C i 5 603 2 711 2543 F 0 1395 C 0 000 55 246 2732 F 0 to 1500 C S 0 000 15 576 2732 F 0 to 1500 C i 0 000 17 445 LCE Procedure 1 Setthe mV source to the Low mV value Turn the setpot fully CCW Adjust the l Low pot until the unit just fully de energizes Gs Potentiometer 2 Set the mV source to the High mV value Turn the setpot fully CW Adjust the F High pot until the unit just fully de energizes p 3 Repeat Steps 1 and 2 as necessary until no Paina further adjustment is needed ae Bottom View WATLOW Series 365 User s Manual 11 RTD Calibration Table 2 Low High RTD Input Calibration Values 12 The Series 365 is calibrated and tested before leaving the factory RTD Calibration 365X X1XX X000 Equipment requ
14. series 365 ___ User s Manual 1 16 DIN Temperature Control LOW Watlow Controls Watlow Controls 1241 Bundy Blvd P O Box 5580 Winona MN 55987 5580 Phone 507 454 5300 Fax 507 452 4507 5 00 Made in the U S A Kai Printed on Recycled Paper 10 Postconsumer Waste 0600 0012 0001 Rev B 1308 March 1998 Supersedes The Series 365 is a 1 16 DIN factory selectable ana log latching limit ON OFF or PI control The control operates from a thermocouple or RTD input and is available in several thermocouple ranges including Types J K T R S or Platinel Il thermocouple The 365 has an integral setpot with a front panel reset switch and a front panel LED indicator for output status In addition to the internal reset switch a customer supplied remote reset switch can be used with the limit control only Factory selectable options include ON OFF PI or latching limit control modes and auto or manual reset on power loss In ON OFF or PI mode heat or cool operation is user selectable The compact size of the controller allows more flexibility in applications where space is a problem such as bench top equipment The 365 is tested to meet NEMA 4X standards for water and corrosion resistance Specifications Control Mode e Heat or cool user selectable e ON OFF e Switching hysteresis Typically 3 F 1 7 C e PI Time proportional with automatic reset e Proportional band adjust Typically 5 to 50 F
15. ter adjustments through the slots in the case Figure 14 S l Proportional Band Proportional Band Potentiometer Potentiometer Location Top View e Cycle time fixed Typically 6 seconds e Automatic reset fixed Typically 0 25 repeats minute Energize the system and allow the process temperature to stabilize When the system is stable the load will cycle at a constant rate Once an adjustment is made the system may become unstable Allow sufficient time for the system to stabilize before making another adjustment Proportional Band Adjustment Rotate the proportional band pot CCW 1 4 turn and observe system stability Repeat until the process temperature begins to hunt becomes unstable When hunting is observed rotate the pot CW in small increments until the system becomes stable Some systems may be stable enough to allow minimum propor tional band maximum CCW Pro parti arial Band Reduced Overshoot Figure 15 PI Adjustment Set t Graph el poin Temperature Time 10 WATLOW Series 365 User s Manual T C Calibration The Series 365 is calibrated and tested before leaving the factory Thermocouple Calibration 365X X6XX X000 Equipment required e Precision millivolt source mV source e Appropriate type reference compensator with reference junction at 32 F 0 C Setup 1 Wire your control for the correct line voltage See power wiring on Page 6 Figure 6 2 Con
16. th these recommendations could result in dam age to equipment and property and injury to personnel Figure 2 Series 365 Dimensions d NOTE Removing the Series 365 chassis from its case will make mounting easier 1 77 to 1 79 Lidd mm to 45 47mm Panel Cutout Your Panel Thickness 1 77 to 1 79 44 96mm 0 06 to 0 38 to 45 47mm 1 5 to 9 7 mm 0 38 9 65mm Minimum 0 85 20mm 2 1 La A1 53mm 104mm i E 1 76 45mm Installation Procedure Follow this procedure to mount the Watlow Series 365 temperature control 1 Make a panel cutout per the dimensions in Figure 1 2 Remove the 365 chassis from its case Holding each side of the bezel press in firmly on the side grips until the tabs release see Figure 3 Pull the chassis out of the case and set aside for later installation 3 Make sure the rounded side of the external case gasket is facing the panel sur face Check to see that the gasket is not twisted and is seated within the case bezel flush with the panel Place the case in the cutout you just made Make sure the gasket is between the panel cutout and the case bezel See Figure 3A 4 While pressing the front of the case firmly against the panel slide the mounting collar over the back of the control The tabs on the collar must line up with the mounting ridges on the case for secure installation See Figure 3A again Slide the collar firmly against the
17. y UI H Figure 7 7 ence Reset Switch Wiring E e Reset Switch Customer Supplied 6 WATLOW Series 365 User s Manual Input Wiring Thermocouple Figure 8 Thermocouple Wiring T C When an external device with a non isolated circuit common is connected to the DC open collector output you must use an isolated or ungrounded thermocouple RTD 2 or 3 Wire RTD Wiring 2 Wire RTD Jumper Terminals 3 and 5 DI 3 Wire RTD DI DI Figure 9 Long lead lengths create electrical resistance There will be approximately 2 F input error for every 1Q of lead length resistance when using a two wire RTD That resistance when added to the resistance of the RTD element can result in erroneous input to the instrument To overcome this problem use a three wire RTD sensor which compensates for lead length resistance When extension wire is used for a three wire RTD all three extension wires must have the same electri cal resistance i e same gauge copper stranded WATLOW Series 365 User s Manual 7 Output Wiring Solid State Relay 0 5A With Contact Suppression 365 B___ _000 Without Contact Suppression 365 K___ _000 Only available on units with ON OFF or PI control Figure 10 Solid State Relay Wiring L2 External 0 Load i Z wv e O 10com Fuse r L1 Switched DC Open Collector Non lsolated 365_ C_ __ _000 Only available on units with ON OFF or PI
Download Pdf Manuals
Related Search