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Watlow EZ-ZONE® ST Temperature Controller Manual
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1. Quir Ossn Osrarus Qovrs Oourz s ied Power Ls i 98 B fuse K3 i gg l Power J3 cF Al f ICD contactor customer supplied N O Output 4 x d coil limit contactor L4 H t CE T2 limit relay bs S2 D6 R2 bs LE System with a limit using an external contactor ST L A hot N o o 120V ac YG Do not switch or neutral fuse neutral wire System using the auxiliary terminals 20 A maximum to operate a secondary load Sub assembly Labels Top Level gt gt s122 2222 2222 2 V 50 60 Hz 140VA MAX SEE MANUAL 0600 0052 0000 Module w G wztstZc off WATLOW EZ ZONE ST Integrated Control Loop Patent Pending 20A maximum E IHE 5
2. u alli You may remove the factory installed jumper between A1 and L4 to install a safety switch for the limit relay ST L Dotted lines repre sent internal wiring S Toe al G contactor ontacts current sensor below SSR to pin3 to pin 6 below O El LURE Internal wiring in an ST with a double pole contactor without a limit ST_B F_ L2t2222 y You can use output 2 L2 and K2 to deacti vate the contactor coil on an ST without a limit ST_B _ El a Dotted lines repre sent internal wiring Watlow EZ ZONE ST Chapter 2 Install and Wire Ls EZ ZONE ST Integrated Control Loop
3. earth ground 2 EEA Oler HHH O o integrated Control ooh 7 2E lOumr Ossr 293585 m e d Qo STATUS un 3 OUT 2 EEHHHHHT 3900 o pezi Ez reze 38 b EI Coles EHEEEA SL s ka elf T9 HHOODOHAODA M Js FTT LI cF 899889998 a L2 ieo Sl o KaLTT E IO I rem rm E B5 3 S2 81 I 1 be 6 RerrT n ps zone 1 The model number at the top of each label identifies the controller configu ration See Ordering Information and Model Numbers in the Appendix for more de tailed information ST L 24 to 28V ST H 100 to 240V ST 1 24V ac ST 2 120V ST 3 208 to 240V x MH S STRT HS 000 SEE MANUAL 0600 0052 8000 DC SN PATENT PENDING ls Heat sink label DC SEE MANUAL 0600 0052 0000 BASE STFT BASE PATENT PENDING Base label Watlow EZ ZONE ST 5 40 o Chapter 2 Install and Wire Installation Mounting and Unmounting the Controller from a DIN Rail To mount the controller on a DIN rail first To unmount the controller first use a hook the top flange on the back of the heat screwdriver to pull down the small le sink on to the top of the DIN rail Then ver on the bottom of the heat sink and NOTE Typically the DIN ra
4. Digital Output update rate 10 Hz output voltage 24V current limit Output 6 10 mA maximum capable of driving a single pole DIN A MITE open circuit voltage 22 to 32V de ST B C DorE 7 Watlow EZ ZONE ST Chapter 2 Install and Wire AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and Input 1 Thermocouple Slot B E Rill 20 Q maximum source resistance gt 20 MQ input impedance 3 microampere open sensor detection Thermocouples are polarity sensitive The negative lead usually red must be connected to S1 To reduce errors the extension wire for thermocouples must be of the same alloy as the thermocouple connecting this controller to BP uL eset eee ell a power source and to elec trical sensors or peripheral devices Failure to do so may Input 1 RTD result in damage to equip ment and property and or platinum 100 and 1 000 0 0 C injury or loss of life calibration to DIN curve 0 00385 0 0 C 20 O total lead resistance Slot B SotB RTD excitation current of 0 09 mA typical Each ves lead resistance may affect the reading by
5. K2 common i Internal Circuitry Watlow EZ ZONE ST Chapter 2 Install and Wire HN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this controller to a power source and to elec trical sensors or peripheral devices Failure to do so may result in damage to equip ment and property and or injury or loss of life NOTE To prevent ground loops isolation needs to be maintained from input to out put when using switched DC or analog process outputs CAUTION Always mount the controller with the heat sink fins aligned vertically NOTE Terminals L4 and A1 on the limit connector are jumpered at the factory to complete the contactor circuit Additional switches may be wired in series to the terminals A WARNING If high voltage is applied to a low voltage con troller irreversible damage will occur Quencharc Note Switching pilot duty inductive loads relay coils solenoids etc with the mechanical relay solid state relay or open collector output options requires use of an R C sup pressor Output 3 Mechanical Relay Form C normally open common normally closed Slot A L3 K3 J3 e 5 A at 240V ac or 30V dc maximum resistive load 20 mA at 24V minimum load 125 VA pilot duty at 120 240V ac 25 VA at 24V ac
6. Watlow EZ ZONE ST e 41 o Chapter 6 Setup Page ALP Parameter Name Description Output 1 to 3 Function Select what the output will control Output 1 to 3 Function Instance Select which instance will be associ ated with this output Output 1 to 3 Control Set the output control type This pa rameter is only used with PID control but can be set anytime Output 1 to 3 Time Base Set the time base for fixed time base control Output 1 to 3 Low Power Scale The power output will never be less than the value specified and will represent the value at which output scaling begins Output 1 to 3 High Power Scale The power output will never be great er than the value specified and will represent the value at which output scaling stops Alarm Menu Alarm 1 or 2 Type Select how the alarm will or will not track the set point Alarm 1 or 2 Source Select what will trigger this alarm Range Integer values for Modbus in parenthesis Default Modbus less 40 001 offset read write Appears If 1 999 to 9 999 203 unsigned Modbus only read only WARNING When the controller is powered up the outputs may turn on oF F Off 62 Heat 36 Cool 20 AL P Alarm 6 Alarm 2 Off 3 to 6 only Ftb Event 29 2 amp 3 Limit 126 3 only Fixed Time Base Fixed Time Base 0 1 to 60 0 seconds 0 0 to 100 0 0 0 to 100 0 100 0 only
7. Curr cess only Process Alarm Analog In put Off 62 Process Alarm 76 Deviation Alarm 24 Analog Input 142 Power 73 process Current 22 pro Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F 134 1 unsigned 147 2 unsigned 160 3 unsigned rw 135 1 unsigned 148 2 unsigned 161 3 unsigned rw 131 1 unsigned 144 2 unsigned 157 8 unsigned TW 132 1 float 145 2 float 158 3 float rw 139 1 float 152 2 float 165 3 float rw 141 1 float 154 2 float 167 3 float rw 110 1 unsigned 126 2 unsigned rw 111 1 unsigned 127 2 unsigned rw 1 and 2 always 3 if the controller includes a limit 1 and 2 always 3 if the controller includes a limit 1 and 2 always 3 if the controller includes a limit 1 and 2 always 3 if the controller includes a limit ___ and Time Base is set to Fixed Time Base 1 and 2 always 3 if the controller includes a limit and if Source is set to Heat or Cool 1 and 2 always 3 if the controller includes a limit and if Source is set to Heat or Cool Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 6 Setup Page Parameter Name Description Alar
8. oPEc je R5t c Je2 PRCc e SEPIe iSt gPjle t 35P e RCSPIe St eo Eot Hor Jule Profile Sta Profile Start Profile Active Step Step Type tus Menu Action on Request vo Target Set Active Set Step Time Event Output Jump Count Point Point Remaining 1 or 2 Remaining Watlow EZ ZONE ST e 30 e Chapter 5 Operations Page Parameter name Description Display As i oPEc Analog Input Menu Analog Input 1 Analog Input 1 or 2 Process Value View the process value Analog Input 1 or 2 Error Status View the cause of the most recent er ror Analog Input 1 or 2 Calibration Offset Offset the input reading to compensate for lead wire resistance or other fac tors that cause the input reading to vary from the actual process value S d 10 Digital Input Digital Input Output Menu Output 5 Digital Output 5 or 6 Output State View the state of this output Digital Input 5 or 6 Event Status View this event input state Low Set Point Set the low process value that will trigger the limit Limit High Set Point Set the high process value that will trigger the limit Limit Clear Request Write to this regieter to clear a limit state Limit State View the limit state Monitor Control Mode Active View the current control mode Note Some values will be rounded off to fit in the fou Set Range Default tings As Analog Input 2 a 1 999 000 to 9 999 000 F
9. Correct wiring or replace sensor Match setting to sensor used Check calibration of controller Watlow EZ ZONE ST Appendix L l I Limit Low Limit High Ramping Autotuning No heat cool action No Display No Serial Communi cation Process doesn t con trol to set point Sensor input below low limit set point Sensor input above high limit set point Controller is ramping to new set point Controller is autotuning the control loop Output does not activate load No display indication or LED illumination Cannot establish serial com munications with the con troller Process is unstable or never reaches set point Temperature is less than limit set point Limit outputs latch and require reset Incorrect alarm set point Temperature is greater than limit set point Limit outputs latch and require reset Incorrect alarm set point Ramping feature is activated User started the autotune function Digital input is set to start autotune Output function is incorrectly set Control mode is incorrectly set Output is incorrectly wired Load power or fuse is open Control set point is incorrect ncorrect controller model for applica tion Power to RUI Remote User Interface is off Fuse open Breaker tripped Safety interlock switch open Separate system limit control acti vated Wiring error Incorrect voltage to cont
10. ac power supply DPF1 Base housing with dual pole 40 A Watlow contactor 24V ac power supply DPF2 Base housing with dual pole 40 A Watlow contactor 110 120V ac power supply DPF3 Base housing with dual pole 40 A Watlow contactor 208 240V ac power supply Watlow EZ ZONE ST e 87 e Appendix Ordering Information for EZ ZONE ST Replacement Heat Sink Code Number S T R T H S 0 0 0 Series ST Replacement Heat Sink Heat Sink Base Configuration Integrated Mechanical Contactor AA Heat sink for mounting to compact base with no mechanical contactor ordered separately STRT BASE CB Heat sink for mounting to large base with integrated mechanical contactor base and contactor ordered separately under STRT BASE __ __ Heat Sink Amperage Rating B 25 A C 40A Ordering Information for EZ ZONE ST Replacement Solid State Relays SSRs 0003 0214 0000 10 A and 25 A replacement 24 to 240V ac output 0003 0215 0000 40 A and 50 A replacement 24 to 240V ac output 0802 0952 0000 90 A replacement 24 to 240V ac output 0003 0216 0000 24 A replacement 48 to 600V ac output 0003 0217 0000 40 A replacement 48 to 600V ac output 0802 0951 0000 90 A replacement 48 to 600V ac output EZ ZONE ST rated for maximum 40 A Watlow EZ ZONE ST e 88 o Appendix Ordering Information and Model Numbers for EZ ZONE ST EZ ZONE ST ST Integrated Thermal Loop Hybrid Cont
11. 100 000 cycles at rated load Output does not supply power for use with ac or dc See Quencharc note limit Output 4 Mechanical Relay Form A SIot A common normally open A1 L4 e 2A at 240V ac or 30V dc maximum resistive load 20 mV at 24V minimum load 125 VA pilot duty at 120 240V ac 25 VA at 24V ac 100 000 cycles at rated load Output does not supply power for use with ac or dc See Quencharc note limit Mechanical open normally closed Internal Circuitry Mechanical Al common normally open L4 Internal Circuitry Watlow EZ ZONE ST Chapter 2 Install and Wire AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this controller to a power source and to elec trical sensors or peripheral devices Failure to do so may result in damage to equip ment and property and or injury or loss of life NOTE To prevent ground loops isolation needs to be maintained from input to out put when using switched DC or analog process outputs CAUTION Always mount the controller with the heat sink fins aligned vertically NOTE Terminals L4 and A1 on the limit connector are jumpered at the factory to complete the contactor circuit Additional switches may be wired in series to the termi
12. 1406 E amp C Dream Tower 46 Yangpyeongdong 3ga Yeongdeungpo gu Seoul 150 103 Republic of Korea Tel 82 2 2628 5770 Fax 82 2 2628 5771 Website www watlow co kr Watlow Malaysia Sdn Bhd No 14 3 Jalan 2 114 Kuchai Business Centre Jalan Kuchai Lama 58200 Kuala Lumpur Malaysia Tel 60 3 7980 7741 Fax 60 3 7980 7739 Rises SRK IRA Ri 80143 SH Bi Set B 1805 1082 Bis 07 2885168 Bi Ei 07 2885568 Watlow Electric Taiwan Corporation 10F 1 No 189 Chi Shen 2nd Road Kaohsiung 80143 Taiwan Tel 886 7 2885168 Fax 886 7 2885568 Your Authorized Watlow Distributor TOTAL CUSTOMER SATISFACTION 3 Year Warranty
13. Proportional Band Proportional Band x 2 Heating Slows Temperature Time Watlow EZ ZONE ST Chapter 9 Features Dead Band In a PID application the dead bands above and below the set point can save an application s energy and wear by maintaining process temperature within ac ceptable ranges Proportional action ceases when the process value is within the dead band Integral action continues to bring the process temperature to the set point Using a positive dead band value keeps the two systems from fighting each other 4 Cool ouput Set Point Heaouput Active Temperature Positive Dead Band gt Time When the dead band value is zero the heating output activates when the temperature drops below the set point and the cooling output switches on when the temperature exceeds the set point 4 Cool Outpuifaotve Set Point Hea out Active Temperature Zero Dead Band gt Time When the dead band value is a negative value both heating and cooling outputs are active when the temperature is near the set point Temperature Negative Dead Band gt Time Adjust the dead band with Dead Band gbjJ Op erations Page Loop Menu Variable Time Base Variable time base is the preferred method for control ling a resistive load providing a very short time base for longer heater life Unlike phase angle firing vari able time base switc
14. ST e 49 Chapter 7 Profiling Page Modbus Registers for Profiling Parameters Profile 1 Profile 2 Stepi 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Step Type 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780 800 820 840 860 880 Unused Step 50 Time 143 Rate 81 Soak 87 Wait Event 144 Wait Process 209 Wait for Both 210 Jump Loop 116 End 27 Target Set Point 501 521 541 561 581 601 621 641 661 681 701 721 741 761 781 801 821 841 861 881 1 999 000 to 9 999 000 Hours 503 523 543 563 583 603 623 643 663 683 703 723 743 763 783 803 823 843 863 883 0 to 99 Minutes 504 524 544 564 584 604 624 644 664 684 704 724 744 764 784 804 824 844 864 884 0 to 59 Seconds 505 525 545 565 585 605 625 645 665 685 705 725 745 765 785 805 825 845 865 885 0 to 59 Rate 506 526 546 566 586 606 626 646 666 686 706 726 746 766 786 806 826 846 866 886 0 to 9999 Event Output 1 508 528 548 568 588 608 628 648 668 688 708 728 748 768 788 808 828 848 868 888 Off 62 On 63 Event Output 2 509 529 549 569 589 609 629 649 669 689 709 729 749 769 789 809 829 849 869 889 Off 62 On 63 Wait Event 1 510 530 550 570 590 610 630 650 670 690 710 730 750 770
15. Control Methods Output Configuration Outputs 1 2 and 3 can be configured as a heat out put a cool output an alarm output or deactivated No dependency limitations have been placed on the avail able combinations The outputs can be configured in Watlow EZ ZONE ST e 60 Chapter 9 Features any combination For instance all three could be set to cool Heat and cool outputs use the set point and Opera tions parameters to determine the output value All heat and cool outputs use the same set point value Heat and cool each have their own set of control pa rameters All heat outputs use the same set of heat control parameters and all cool outputs use the same set of cool output parameters Each alarm output has its own set of configuration parameters and set points allowing independent op eration Output 4 can only be used as a limit output Auto closed loop and Manual open loop Control The controller has two basic modes of operation auto mode and manual mode Auto mode allows the control ler to decide whether to perform closed loop control or to follow the settings of Input Error Failure Setup Page Loop Menu The manual mode only al lows open loop control The EZ ZONE controller is normally used in the auto mode The manual mode is usually only used for specialty applications or for troubleshooting Manual mode is open loop control that allows the user to directly set the power level to the c
16. Digital Input Output 5 or 6 Direction Set the function to an input or output Digital Output 5 or 6 Function Select what function will drive this output Digital Output 5 or 6 Function Instance Select which source instance will drive the output Digital Input 5 or 6 Level Select what action will be interpreted as a true state Digital Input 5 or 6 Function Select the function that will be trig gered by a true state Functions respond to a level state change or an edge level change Range Integer values for Modbus in parenthesis Off 62 on On 63 L 8l amp do Digital Input Output 6 menu appears if ST B E DorC _ ____ ____ Output 68 Input Voltage 193 Input Dry Contact Off 62 Alarm 6 Event 29 High 37 Low 53 None 61 Idle Set Point En able level 107 Tune edge 98 Alarm Reset edge Silence Alarms 108 Manual Auto Mode 54 oF FJ Control Outputs Off 90 Profile Disable 206 Bh oL Profile Hold Resume 2077 Pr oF Profile Start Num dgel 79 Profile Start Stop 208 Limit Reset edge Default O Modbus less 40 001 offset read write 65 1 unsigned rw 68 1 unsigned 96 2 unsigned write only 169 5 unsigned 182 6 unsigned rw 173 5 unsigned 186 6 unsigned rw 174 5 unsigned 187 6 unsigned rw 264 1 unsigned 268 2 unsigned rw 266 1 unsigned 270 2 unsigned r
17. Global AC Line Frequency Set the frequency to the applied ac line power source Default Modbus less 40 001 offset read write Range Integer values for Modbus in parenthesis 0 to 32 767 12 285 unsigned 1 999 to 9 000 None 61 Idle Set Point En level 107 Tune edge 98 Alarm Reset edge Silence Alarms 108 An Manual Auto Mode 54 Control Outputs Off 90 Profile Disable 206 Pho L Profile Hold Resume 207 Pr oF Profile Start Num dge 79 Profile Start Stop 208 Limit Reset edge 0 All Instances except Profile For example if Digital Function is set to Silence Alarms and Function In stance is set to 0 then the digital input would silence both alarms 1to4 S 50 Hz 3 60 60 Hz 4 rw Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Appears If the controller includes a limit the controller includes a limit Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 6 Setup Page Parameter Name Range Default Modbus Appears If Description Integer values for Modbus in less 40 001 offset parenthesis read write Global Set Point 85 Set Point 302 unsigned the controller Profile Typ
18. Set correct communication port Correct software setup to match con troller e Place 120 Q resistor across EIA 485 on last controller Perform autotune or manually tune system Set control mode appropriately Open vs Closed Loop Set control set point in appropriate control mode and check source of set point remote idle profile closed loop open loop Watlow EZ ZONE ST Appendix Temperature runway Process value continues to increase or decrease past set point Device Error Controller displays internal malfunction message at power up 4 Heater Error Heater Error Load current incorrect UCET Current Error Menus inaccessible Unable to access SEE oPE FCEY or Prof menus or particular prompts in Home Page EZ Key doesn t work EZ Key does not activate re quired function no upper display The RUI Remote User Inter dE ul lower display face will not communicate with the controller at the selected zone Value cannot be displayed Controller output incorrectly pro grammed Thermocouple reverse wired Controller output wired incorrectly Short in heater Power controller connection to con troller defective Controller output defective Controller defective Current through load is above current trip set point Current through load is below current trip set point Shorted solid state or mechanical relay Open sol
19. Step Type Parameters End Type Select what the controller will do when this profile ends Step Type Parameters Event Output 1 and 2 Select whether Event Output 1 or 2 is on or off during this step 0 to 9 999 000 F or units per minute 0 to 5 555 000 C per minute 1 999 000 to 9 999 000 F or units 1 128 000 to 5 537 000 C Off On None i B oF F Control Mode set to Off loop set point in the profile previous set point Hol d Hold last closed USE c User reverts to Default 503 unsigned rw address 503 in stance 1 20 504 unsigned rw address 504 in stance 1 20 505 unsigned rw address 505 in stance 1 20 506 unsigned rw address 506 in stance 1 20 512 unsigned rw address 512 in stance 1 20 510 unsigned rw address 510 in stance 1 20 511 unsigned rw address 511 in stance 1 20 514 unsigned rw address 514 in stance 1 20 515 unsigned rw address 515 in stance 1 20 516 unsigned rw address 516 in stance 1 20 508 1 unsigned rw address 508 in stance 1 20 509 1 unsigned rw address 509 in stance 1 20 Note Some values will be rounded off to fit in the four character display Full values can be read with another interface Step Type is set to Time or Soak Step Type is set to
20. adaptive tuning feature Loop TRU TUNE Band Set the range centered on the set point within which TRU TUNE will be in effect Use this function only if the controller is unable to adaptive tune automatically Loop TRU TUNE Gain Select the responsiveness of the TRU TUNE adaptive tuning cal culations More responsiveness may increase overshoot Range Integer values for Modbus in parenthesis 0 All Instances except pro files For example if Digital Function is set to Silence Alarms and Function In stance is set to 0 then this digital input will silence both alarms 1to4 222 both Both 13 h 9h High 37 Low 53 0 001 to 9 999 000 F or units 0 001 to 5 555 000 C no No 59 YES Yes 106 oF F Off 62 P d PID 71 On Off 64 oF F Off 62 PID 71 On Off 64 No 59 Yes 106 0 Auto 1 to 100 1 to 6 Most to least respon sive Default Modbus ess 40 001 offset read write 267 1 unsigned 271 2 unsigned rw 279 unsigned rw 273 float rw 316 unsigned rw 223 unsigned rw 224 unsigned rw 257 unsigned rw 307 unsigned rw 308 unsigned rw Appears If Direction is set to Input Voltage or Input Dry Contact Cool Algorithm or Heat Algo rithm is set to PID Cool Algorithm or Heat Algo rithm is set to PID and TRU TUNE En able is set to Yes Cool Algorithm or Heat Algo rithm is
21. 790 810 830 850 870 890 Off 62 On 63 None 61 Wait Event 2 511 531 551 571 591 611 631 651 671 691 711 731 751 771 791 811 831 851 871 891 Off 62 On 63 None 61 Wait For Process 512 532 552 572 592 612 632 652 672 692 712 732 752 772 792 812 832 852 872 892 1 999 000 to 9 999 000 Jump Step 514 534 554 574 594 614 634 654 674 694 714 734 754 774 794 814 834 854 874 894 0 to 40 Jump Count 515 535 555 575 595 615 635 655 675 695 715 735 755 775 795 815 835 855 875 895 0 to 9 999 End Type 516 536 556 576 596 616 636 656 676 696 716 736 756 776 796 816 836 856 876 896 Off 62 Hold 47 User 100 Watlow EZ ZONE ST e 50 Chapter 7 Profiling Page Profile 3 Profile 4 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 900 920 940 960 980 1000 1020 1040 1060 1080 1100 1120 1140 1160 1180 1200 1220 1240 1260 1280 901 921 941 961 981 1001 1021 1041 1061 1081 1101 1121 1141 1161 1181 1201 1221 1241 1261 1281 903 923 943 963 983 1003 1023 1043 1063 1083 1103 1123 1143 1163 1183 1203 1223 1243 1263 1283 904 924 944 964 984 1004 1024 1044 1064 1084 1104 1124 1144 1164 1184 1204 1224 1244 1264 1284 905 925 945 965 985 1005 1025 1045 1065
22. Additional switches 0 to 10V dc 20 kQ input impedance may be wired in series to the 0 ee mV dc 20 kO input impedance scalable terminals To ST L limit 82 Rez A Ek volts amperes WARNING If high voltage is applied to a low voltage con troller irreversible damage will occur Quencharc Note Switching pilot duty inductive loads relay coils solenoids etc with the mechanical relay solid state relay or open collector output options requires use of an R C sup pressor Watlow EZ ZONE ST e 16 o Chapter 2 Install and Wire AN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this controller to a power source and to elec trical sensors or peripheral devices Failure to do so may result in damage to equip ment and property and or injury or loss of life NOTE To prevent ground loops isolation needs to be maintained from input to out put when using switched DC or analog process outputs CAUTION Always mount the controller with the heat sink fins aligned vertically NOTE Terminals L4 and A1 on the limit connector are jumpered at the factory to complete the contactor circuit Additional switches may be wired in series to the terminals A WARNING If high voltage is applied to a low voltage con troller irreversible damage will occur Quencharc Note Switching pilot duty inductive loads
23. C or 32 to 2543 F Type R 0 to 1760 C or 32 to 3200 F Type S 0 to 1760 C or 32 to 3200 F Type B 0 to 1816 C or 32 to 3300 F RTD DIN 200 to 800 C or 328 to 1472 F Process 1999 to 9999 units Output Hardware User selectable for heat cool as on off P PI PD PID alarm or limit action Output 1 SSR drive 20 to 28V dc low side open collector switch Output 2 Solid state relay Form A 0 5 A 24V ac minimum 264V ac maximum opto isolated without contact suppression Output 4 Electromechanical relay Form A rated 2 A 125VA pi lot duty 120 240V ac 25VA 24V ac Output 2 Electromechanical relay Form A rated 5 A 125VA pi lot duty 120 240V ac 25VA 24V ac Output 3 Electromechanical relay Form C rated 5 A 125VA pi lot duty 120 240V ac 25VA 24V ac Weight 40 A heat sink assembly only 431 g 0 95 Ib 25 A heat sink assembly only 340 g 0 75 lb solid state relay controller only 177 g 0 39 lb solid state relay controller only with base without heat sink 345g 0 76 lb full system with 25 A heat sink 1 134 kg 2 5 lb Basic Remote User Interface RUI Operator Interface Dual 4 digit 7 segment LED displays Forward backward up and down keys plus a customer program mable function key Isolated EIA 485 Modbus serial communications Typical display update rate 1Hz Agency approved to IP66 NEMA 4X indoor use only Line Voltage Power 100 to 240V
24. EAE wai 88 Thermocouple HS N BRA WwW 0 Input 1 Output 2 T O O Output 2 o rc e E oo d oH S E DOoOaAA dod N Controller Selection I F joooj 2991 Nolo ow E 2 vrg ct e AD RI d I 2 I L 5 N N 7 LL 1888 WARNING If high voltage is applied to a low an voee 1 applied inal 222707381000 O10 voltage controller irreversible damage will R J lo occur 9g LE E B fuse mpm n TT Eg ox 8 TOS 82280855 Power Supply Output 1 SSR NOTE Terminals L4 and A1 on the limit con amp amp 9 amp nector are jumpered at the factory to complete e 3 ST eA naas the contactor circuit Additional switches may 55 2 earth S S roun be wired in series to the terminals 9 3 NOTE Use the contactor with a minimum load of 100 watts STATUS Indicator Light Flashing green indicates the controller is running with no input errors Flashing red indicates an input error No flashing indicates that the controller is not functioning Sg S 1ndino 10 s ndu jeyBig 9 1ndino Jo 9 1nduj 1e fuse HL Power Suppl 0 1 reuBic uo uuuoo n LH snapo q L LH snapo uouiuoo 1 NLY Snapo ST M Modbus RTU on EIA 485 CAUTION Always mount the controller as shown with the heat sink fins aligned vertically NOTE The control common te
25. Event Output 1 unsigned 868 RUI Modbus Profile Management Profiling Page Step 19 Event Output 2 unsigned 869 RUI Modbus Profile Management Profiling Page Step 19 Hours unsigned 863 RUI Modbus Profile Management Profiling Page Step 19 Jump Count unsigned 875 RUI Modbus Profile Management Profiling Page Step 19 Jump Step unsigned 874 RUI Modbus Profile Management Profiling Page Step 19 Minutes unsigned 864 RUI Modbus Profile Management Profiling Page Step 19 Rate IEEE Float 866 RUI Modbus Profile Management Profiling Page Step 19 Seconds unsigned 865 RUI Modbus Profile Management Profiling Page Step 19 Step Type unsigned 860 RUI Modbus Profile Management Profiling Page Step 19 Target Set Point IEEE Float 861 RUI Modbus Profile Management Profiling Page Step 19 Wait Event Event 1 unsigned 870 RUI Modbus Profile Management Profiling Page Step 19 Wait Event Event 2 unsigned 871 RUI Modbus Profile Management Profiling Page Step 19 Wait For Process IEEE Float 872 RUI Modbus Profile Management Profiling Page Step 20 End Type unsigned 896 RUI Modbus Profile Management Profiling Page Step 20 Event Output 1 unsigned 888 RUI Modbus Profile Management Profiling Page Step 20 Event Output 2 unsigned 889 RUI Modbus Profile Management Profiling Page Step 20 Hours unsigned 883 RUI Modbus Profile Management Profiling Page Step 20 Jump Count unsigned 895 RUI Modbus Profile Management Profiling Page Step 20
26. Jump Step unsigned 894 RUI Modbus Profile Management Profiling Page Step 20 Minutes unsigned 884 RUI Modbus Profile Management Profiling Page Step 20 Rate IEEE Float 886 RUI Modbus Profile Management Profiling Page Step 20 Seconds unsigned 885 RUI Modbus Profile Management Profiling Page Step 20 Step Type unsigned 880 RUI Modbus Profile Management Profiling Page Step 20 Target Set Point IEEE Float 881 RUI Modbus Profile Management Profiling Page Step 20 Wait Event Event 1 unsigned 890 RUI Modbus Profile Management Profiling Page Step 20 Wait Event Event 2 unsigned 891 RUI Modbus Profile Management Profiling Page Step 20 Wait For Process IEEE Float 892 RUI Modbus Profile Management Profiling Page Step 21 End Type unsigned 916 RUI Modbus Profile Management Profiling Page Step 21 Event Output 1 unsigned 908 RUI Modbus Profile Management Profiling Page Step 21 Event Output 2 unsigned 909 RUI Modbus Profile Management Profiling Page Step 21 Hours unsigned 903 RUI Modbus Profile Management Profiling Page Step 21 Jump Count unsigned 915 RUI Modbus Profile Management Profiling Page Step 21 Jump Step unsigned 914 RUI Modbus Profile Management Profiling Page Step 21 Minutes unsigned 904 RUI Modbus Profile Management Profiling Page Step 21 Rate IEEE Float 906 RUI Modbus Profile Management Profiling Page Step 21 Seconds unsigned 905 RUI Modbus Profile Management Profiling Page Step 21 Step Type un
27. Modbus Alarm Setup Alarms Alarm 1 Type unsigned 110 RUI Modbus Alarm Setup Alarms Alarm 2 Blocking unsigned 123 RUI Modbus Alarm Operation Alarms Alarm 2 Clear Request unsigned 124 Modbus only Alarm Operation Alarms Alarm 2 High Set Point IEEE Float 113 RUI Modbus Alarm Setup Alarms Alarm 2 Hysteresis IEEE Float 117 RUI Modbus Alarm Setup Alarms Alarm 2 Latching unsigned 122 RUI Modbus Alarm Setup Alarms Alarm 2 Logic unsigned 120 RUI Modbus Alarm Operation Alarms Alarm 2 Low Set Point IEEE Float 115 RUI Modbus Alarm Setup Alarms Alarm 2 Sides unsigned 119 RUI Modbus Alarm Operation Alarms Alarm 2 Silence Request unsigned 125 Modbus only Alarm Setup Alarms Alarm 2 Silencing unsigned 121 RUI Modbus Alarm Setup Alarms Alarm 2 Source unsigned 127 RUI Modbus Alarm Setup Alarms Alarm 2 Source Instance unsigned 128 RUI Modbus Alarm Setup Alarms Alarm 2 Type unsigned 126 RUI Modbus Analog Input Factory Calibration Input 1 Calibration Electrical Offset IEEE Float 47 RUI Modbus Analog Input Operation Analog Input Input 1 Calibration Offset IEEE Float 51 RUI Modbus Analog Input Factory Calibration Input 1 Electrical Measurement IEEE Float 309 RUI Modbus Analog Input Factory Calibration Input 1 Electrical Slope IEEE Float 49 RUI Modbus Analog Input Setup Analog Input Input 1 Error Latching unsigned 67 Modbus only Analog Input Setup Analog Input Input 1 Error Reset unsigned 68 Modbus only Ana
28. Time 47 49 Time Base 42 Time Derivative 34 57 62 Time Integral 34 57 62 troubleshooting 68 TRU TUNE Band 40 TRU TUNE Enable 40 TRU TUNE Gain 40 Tune Status 33 tuning the PID parameters 57 Type 42 64 U Unused Step 47 49 upper display 23 Up Key 23 User Action Failure 42 User Restore Set 24 55 57 User Save Set 25 55 57 using the software 66 V variable time base 63 W Wait Event 1 and 2 48 Wait For Both 47 49 Wait For Event 47 49 Wait For Process 47 48 49 wiring 5 12 digital input or output 5 14 digital input or output 6 14 input 1 process 15 input 1 RTD 15 input 1 thermocouple 15 input 2 process 16 input 2 RTD 16 input 2 thermocouple 16 Modbus RTU or standard bus EIA 485 communications 19 output 1 solid state relay without a contactor 17 output 1 solid state relay with a contactor 17 output 2 mechanical relay form A 17 output 2 solid state relay form A 17 output 3 mechanical relay form C 18 output 4 mechanical relay form A 18 power 14 standard bus EIA 485 communica tions 19 without a contactor 7 with a contactor 6 wiring a network 20 X Y Z zone display 23 Watlow EZ ZONE ST Appendix Declaration of Conformity Series EZ ZONE ST Tower Watlow Winona Inc 1241 Bundy Blvd Winona MN 55987 USA Declares that the following product Designation Series EZ ZONE ST Tower Model Numbers ST followed by K B P E H D J or C foll
29. Variable TIME BASE o ceed eer ad eee t e tide 63 Single Set Point Ramping 0 0 ccc cece eee eee eee 64 PAEMIEBRSERRETTOUOEROLERIILOTTI TID D TIED 64 Process and Deviation Alarms 0 0 0 0 cece eese 64 Alarm Set Points 64 Alarm Hysteresis lliseiisssssssss eee eee 64 Alarm Latching 0 0 0 cece cece cece teen e nn eee 64 Alarm Silencing x nsi oh b ask repr ed ei dantes 65 Alarm Blocking 0 2 0 0 ccc cece cette IIIA 65 Current SENSING iiss ur Saree cts cana we ethan cee ethane oe ORE 65 Programming the EZ Key 0 0 0 0 eee eee eee 65 Using Lockout to Secure Settings 0 00 cece eee eee 66 POUND id anite eg eee donde ook gn qn edem tus Sen n nn 67 Watlow EZ ZONE ST e 56 o Chapter 9 Features Saving and Restoring User Settings Recording setup and operations parameter settings for future reference is very important If you unintention ally change these you will need to program the correct settings back into the controller to return the equip ment to operational condition After you program the controller and verify proper operation use User Save Set Factory Page Diagnostics Menu to save the settings into either of two files in a special section of memory If the settings in the controller are altered and you want to return the controller to the saved values use User Restore Set U 5r r Factory Page Diagnostics Menu to re call one of the saved settings N
30. respond to alarm 2 instance 2 You can assign more than one output to respond to a single instance of a function For example alarm 2 could be used to trigger a light connected to output 1 and a siren connected to digital output 5 Input Events and Output Events Input events are internal states that are set by the digital inputs Digital input 5 provides the state of input event 1 and digital input 6 provides the state of input event 2 Wait for Event steps in profiles are triggered by these events The setting of Digital Input Function Setup Page Digital Input Output Menu does not change the relationship between the input and the event so take care not to configure the func tion in a way that would conflict with a profile that uses an input event An input will still control the input event state even if Digital Input Function is set to None Output events are internal states that can only be set by profile steps Outputs 1 through 4 can be config ured to respond to output events Watlow EZ ZONE ST Chapter 1 Overview EZ ZONE ST Output 1 Solid state Relay f heat cool or alarm switched dc Output 2 form A relay n heat cool alarm 0 5 A solid state or 5 A mechanical or event EIA 485 Communications Remote User Interface RUI Current Sensor ST A optional orModbusST M ST P E J D Supervisory amp Digital Input or Output 5 oe Soneh er volte di Pu Digital Output or Input 5 L
31. 1 float Sensor Type 91 2 float is set to Millivolts Volts or Milliamps rw Input 1 or 2 0 0 to 60 0 seconds Filter Time Filtering smooths out the process sig nal to both the display and the input Increase the time to increase filtering 55 1 float 83 2 float rw o ho ho m ta o Input 1 or 2 Error Latching Turn input error latching on or off If latching is on errors must be manu ally cleared Off 62 67 1 unsigned on On 63 95 2 unsigned rw 69 unsigned Modbus only Input 1 or 2 Decimal Set the precision of the displayed value C 0 Whole Tenths C 000 Hundreths Thousandths Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Input 1 or 2 100 0 to 100 0 Scale High Set the high scale for process inputs This value in millivolts volts or mil liamps will correspond to the Range High value displayed by the control ler Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 38 e Chapter 6 Setup Page Parameter Name Description Input 1 Sensor Backup Enable If the input 1 sensor fails the control ler will use the input 2 sensor Input 1 or 2 Error Reset Write to this register to clear an error dio Digital Input Output 5
32. 1085 1105 1125 1145 1165 1185 1205 1225 1245 1265 1285 906 926 946 966 986 1006 1026 1046 1066 1086 1106 1126 1146 1166 1186 1206 1226 1246 1266 1286 908 928 948 968 988 1008 1028 1048 1068 1088 1108 1128 1148 1168 1188 1208 1228 1248 1268 1288 909 929 949 969 989 1009 1029 1049 1069 1089 1109 1129 1149 1169 1189 1209 1229 1249 1269 1289 910 930 950 970 990 1010 1030 1050 1070 1090 1110 1130 1150 1170 1190 1210 1230 1250 1270 1290 911 931 951 971 991 1011 1031 1051 1071 1091 1111 1131 1151 1171 1191 1211 1231 1251 1271 1291 912 932 952 972 992 1012 1032 1052 1072 1092 1112 1132 1152 1172 1192 1212 1232 1252 1272 1292 914 934 954 974 994 1014 1034 1054 1074 1094 1114 1134 1154 1174 1194 1214 1234 1254 1274 1294 915 935 955 975 995 1015 1035 1055 1075 1095 1115 1135 1155 1175 1195 1215 1235 1255 1275 1295 916 936 956 976 996 1016 1036 1056 1076 1096 1116 1136 1156 1176 1196 1216 1236 1256 1276 1296 Watlow EZ ZONE ST e 51 o Chapter 7 Profiling Page Profile Example Using Modbus less 40 001 offset 2 n Wait vent 700 144 Thefistsiepin Profile 2 wil be a Wait Event step pattes p 5 Wetbremnitem o L weawma
33. 13 Hours unsigned 743 RUI Modbus Profile Management Profiling Page Step 13 Jump Count unsigned 755 RUI Modbus Profile Management Profiling Page Step 13 Jump Step unsigned 754 RUI Modbus Profile Management Profiling Page Step 13 Minutes unsigned 744 RUI Modbus Profile Management Profiling Page Step 13 Rate IEEE Float 746 RUI Modbus Profile Management Profiling Page Step 13 Seconds unsigned 745 RUI Modbus Profile Management Profiling Page Step 13 Step Type unsigned 740 RUI Modbus Profile Management Profiling Page Step 13 Target Set Point IEEE Float 741 RUI Modbus Profile Management Profiling Page Step 13 Wait Event Event 1 unsigned 750 RUI Modbus Profile Management Profiling Page Step 13 Wait Event Event 2 unsigned 751 RUI Modbus Profile Management Profiling Page Step 13 Wait For Process IEEE Float 752 RUI Modbus Profile Management Profiling Page Step 14 End Type unsigned 776 RUI Modbus Profile Management Profiling Page Step 14 Event Output 1 unsigned 768 RUI Modbus Profile Management Profiling Page Step 14 Event Output 2 unsigned 769 RUI Modbus Profile Management Profiling Page Step 14 Hours unsigned 763 RUI Modbus Profile Management Profiling Page Step 14 Jump Count unsigned 775 RUI Modbus Profile Management Profiling Page Step 14 Jump Step unsigned 774 RUI Modbus Profile Management Profiling Page Step 14 Minutes unsigned 764 RUI Modbus Profile Management Profiling Page Step 14 Rate I
34. 54 programming the Home Page 57 proportional control 62 plus integral PI control 62 plus integral plus derivative PID control 62 Q R Ramp Action 41 Ramp Rate 41 64 Ramp Scale 41 64 Ramp Set Point 32 Range High 38 60 Range Low 38 60 Rate 47 48 49 Read 35 65 Reading Enable 43 Read Lock 24 Read Lockout Security 66 Remote User Interface See RUI replacing the solid state relay 12 13 restoring user settings 57 RTD Leads 38 RUI 23 and standard bus address 21 mounting 11 Watlow EZ ZONE ST e 9 o Appendix panel cutout dimensions 5 specifications 86 RUI Address 24 RUI Page 24 S saving user settings 57 Scale High 38 60 Scale Low 38 60 Seconds 48 secure settings 66 sensor backup 60 Sensor Backup Enable 39 60 sensor selection 60 Sensor Type 38 60 Serial Number 24 55 Setup Page 37 Set Lock 24 Set Lockout Security 66 Set point 57 set point adjusting 23 set point high limit 60 set point low limit 60 Sides Alarm 43 Current 43 Limit 40 Silence Request 34 Silencing 43 65 single set point ramping 63 Soak 47 49 Software Build 24 55 Software ID 24 55 Software Prototype 24 55 Software Release 24 55 Source 42 specifications 86 Start Zone 24 State 31 status indicator light 6 Status Light 55 Step 47 Step Time Remaining 36 52 Step Type 35 47 sub assembly labels 10 I Target Set Point 36 47 temperature units indicator lights 23 thermal system control 2
35. 65 Alarm Source 42 Autotune Set Point 33 Message Action 23 28 29 4 65 Alarm Type 42 64 Autotune Request 33 Autotune 28 Communications Menu 24 Cool Algorithm 40 62 Calibration Menu 55 Current Detect Threshold 44 Current Error 23 29 35 65 0 Display Units 44 Current High Set Point 35 3 Ds D c zo uc d z i i dD r LO P 3 SEE a nr nr 3 o zB rr uc d Cc rr d Cc rr ry d LO P Q rr m em 1 N 73 J n m gt o oO m gt Lc Cool Hysteresis 34 62 Current Limit Enable 43 Communications LED As ignment 25 Current Low Set Point 35 5 Control Mode 33 61 Control Mode 28 Control Mode Active 31 Current Offset 44 Cool Proportional Band 33 7 62 Cool Power 32 58 Cool Power 28 Current Sides 43 Closed Loop Set Point 32 33 73 m n ry mr oA p oo 73 3 m 3 3 m gt m P o nh mM oO ry d m uf 5 dg 2 o 20 nr m Solid state Relay Fault 23 Current Read 35 Current Reading Enable 43 Current Menu 35 43 Custom Menu 28 54 57 Date of Manufacture 24 55 D
36. 8 or units 1 128 000 to 5 537 000 C d 1o Digital Input no nE None 61 o PE a Open 65 Shr E Shorted 127 Ec R5 Ambient Error 9 E r Ed RTD Lead Resis tance Error 141 1 999 000 to 9 999 000 F or units 1 110 555 to 5 555 000 C on On 63 oF F Off 62 iB CE Inactive 41 ACE Active 5 1 999 000 to 9 999 000 F or units 1 128 000 to 5 537 000 C 1 999 000 to 9 999 000 F or units 1 128 000 to 5 537 000 C Off 62 None 61 High 51 Low 52 Error 28 oF F Off 62 Auto Auto 10 P188 Manual 54 r character display Full values can be read with Modbus All temperature parameters through Modbus are in F Modbus less 40 001 offset read write Appears If Analog input 2 appears it ST_L 19 1 float 25 2 float read only 41 1 unsigned 69 2 unsigned read only 51 1 float 79 2 float rw 175 5 unsigned 188 6 unsigned read only 32 1 unsigned 33 2 unsigned read only 275 float rw Limit Sides Setup Page is not set to High 277 float rw Limit Sides Setup Page is not set to Low Modbus only Modbus only 272 unsigned write only 280 unsigned read only 222 unsigned read only Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 5 Operations Page Display
37. Digital Input or Output 6 eee Switch or volts dc Digital Output or Input 6 a PID Controller Analog Input 1 thermocouple RTD process V or mA alarm or event alarm or event Output 3 F form C relay 5 A mechanical heat cool alarm event or limit Limit Controller iba Output 4 form A relay a 2 A mechanical Analog Input 2 thermocouple RTD process V or mA ST_L_ EZ ZONE ST inputs and outputs AN WARNING When the controller is powered up the outputs may turn on NOTE A current error can be sent to the RUI Remote User Inter face soft error display by enabling Current Reading in the Setup Page Watlow EZ ZONE ST e 4 o Chapter 1 Overview 2 Chapter 2 Install Wire and Set Address EZ ZONE ST with contactor Front View em 514m a 25 A heatsink shown jo L This dimension same for 40 A heatsink 41 9 mm 1 65 in 35 mm 1 38 in WARNING The heat sink can become hot during op eration CAUTION The EZ ZONE ST must be mounted verti UM 4 97 in mu cally as shown to meet the 25 A shown ampere ambient tempera i mh Side View lure performance curve 3 88 in 40A EZ ZONE ST without contactor RUI Panel Cutout Dimensions 52 07 mm 45 21 mm 51 6 mm r 3 2 05 in 1 78 in 2 03 in rm RE 1 77 to 1 79 in prie 25 A heatsink shown 1 43 in This dimension t
38. Float 786 RUI Modbus Profile Management Profiling Page Step 15 Seconds unsigned 785 RUI Modbus Profile Management Profiling Page Step 15 Step Type unsigned 780 RUI Modbus Profile Management Profiling Page Step 15 Target Set Point IEEE Float 781 RUI Modbus Profile Management Profiling Page Step 15 Wait Event Event 1 unsigned 790 RUI Modbus Profile Management Profiling Page Step 15 Wait Event Event 2 unsigned 791 RUI Modbus Profile Management Profiling Page Step 15 Wait For Process IEEE Float 792 RUI Modbus Profile Management Profiling Page Step 16 End Type unsigned 816 RUI Modbus Profile Management Profiling Page Step 16 Event Output 1 unsigned 808 RUI Modbus Profile Management Profiling Page Step 16 Event Output 2 unsigned 809 RUI Modbus Profile Management Profiling Page Step 16 Hours unsigned 803 RUI Modbus Profile Management Profiling Page Step 16 Jump Count unsigned 815 RUI Modbus Profile Management Profiling Page Step 16 Jump Step unsigned 814 RUI Modbus Profile Management Profiling Page Step 16 Minutes unsigned 804 RUI Modbus Profile Management Profiling Page Step 16 Rate IEEE Float 806 RUI Modbus Profile Management Profiling Page Step 16 Seconds unsigned 805 RUI Modbus Profile Management Profiling Page Step 16 Step Type unsigned 800 RUI Modbus Profile Management Profiling Page Step 16 Target Set Point IEEE Float 801 RUI Modbus Profile Management Profiling Page Step 16 Wait Event E
39. Jo cr A1 A1 A1 A1 contactor Coil 1 BT A 4 epi L4 L4 LA L4 E N O Output 4 Ta T2 T2 zS grs E T R2 R2 R2 Process Process 2 wire js wire somos Oto 10V dc 0to20mA PUN A Input 2 0 to 50mV dc Input 2 p Input 2 Controller L2 L2 L2 L2 N O Output 2 K2 K2 i K2 K2 common Output 2 K2 T1 run Ti E Ti Ti ST 1 S3 G rs S1 T Ay R1 s RI SA R1 Process i Process i 2 wire 3 wire Thermocouple 0 to 10V dc Oto 20 mA RTD Input 1 0 to 50mV dc Input 1 Input 1 Input 1 Watlow EZ ZONE ST e 7 Chapter 2 Install and Wire ntegrated Control Loop atent Pending E Ground Connection Connect the ground to the heat sink There is no ground connection on mod els without a heat sink hot hot fuse fuse Output 1 SSR neutral ho Output 1 SSR EZ ZONE ST l L3 K3 J3 A1 L4 T2 S2 R2 Oumit Ossr OSTATUS Qours Qoure 2 0 Address NI Selection wy An Control L2 K2 T1 S1 R1 Indicator Im Lights EZ E 9g JJ Power Power 99 Power Power CF common RUI common Modbus RTU Cpe s Ue nare T R Modbus RTU oa HTU on ERR R
40. Modbus Profile Management Profiling Page Step 6 Event Output 1 unsigned 608 RUI Modbus Profile Management Profiling Page Step 6 Event Output 2 unsigned 609 RUI Modbus Profile Management Profiling Page Step 6 Hours unsigned 603 RUI Modbus Profile Management Profiling Page Step 6 Jump Count unsigned 615 RUI Modbus Profile Management Profiling Page Step 6 Jump Step unsigned 614 RUI Modbus Profile Management Profiling Page Step 6 Minutes unsigned 604 RUI Modbus Profile Management Profiling Page Step 6 Rate IEEE Float 606 RUI Modbus Profile Management Profiling Page Step 6 Seconds unsigned 605 RUI Modbus Profile Management Profiling Page Step 6 Step Type unsigned 600 RUI Modbus Profile Management Profiling Page Step 6 Target Set Point IEEE Float 601 RUI Modbus Profile Management Profiling Page Step 6 Wait Event Event 1 unsigned 610 RUI Modbus Profile Management Profiling Page Step 6 Wait Event Event 2 unsigned 611 RUI Modbus Profile Management Profiling Page Step 6 Wait For Process IEEE Float 612 RUI Modbus Profile Management Profiling Page Step 7 End Type unsigned 636 RUI Modbus Profile Management Profiling Page Step 7 Event Output 1 unsigned 628 RUI Modbus Profile Management Profiling Page Step 7 Event Output 2 unsigned 629 RUI Modbus Profile Management Profiling Page Step 7 Hours unsigned 623 RUI Modbus Profile Management Profiling Page Step 7 Jump Count unsigned 635 RUI Modbus Profile M
41. NOTE To prevent ground For 3 wire RTDs the S1 lead usually white must loops isolation needs to be m be connected to R1 maintained from input to out A 1 e For best accuracy use a 3 wire RTD to compensate put when using switched DC ga s S1 for lead length resistance All three lead wires must or analog process outputs zril Sm R1 S ides ees pros 2 wire 3 wire CAUTION Always mount the Input 1 Process controller with the heat sink fins aligned vertically SED sist e 0 to 20 mA 100 Q input impedance 0 to 10V dc 20 kO input impedance T1 e 0 to 50 mV dc 20 kO input impedance NOTE Terminals L4 and leil 9 sil sealable A1 on the limit connector EMI ST__ ____ ___ all are jumpered at the factory RI to complete the contactor volts LE circuit Additional switches may be wired in series to the terminals WARNING If high voltage is applied to a low voltage con troller irreversible damage will occur Watlow EZ ZONE ST e 15 o Chapter 2 Install and Wire HN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this controller to a power source and to elec Input 2 Thermocouple Slot A e 20 Q maximum source resistance e gt 20 MO input impedance e 3 microampere open sensor detection Thermocouples are polarity sensitive
42. Offset 55 59 Electrical Slope 55 59 End 47 49 End Set Point Value 48 Error 35 errors limit 23 ramping 23 tuning 23 error and alarm messages 23 Error Latching 38 Error Reset 39 Error Status 31 38 Event 1 Status 32 Event 2 Status 32 Event Output 1 and 2 36 48 Event Status 31 EZ ZONE ST inputs and outputs 4 without contactor 5 with contactor 5 EZ Key 3 23 26 44 65 Watlow EZ ZONE ST 91 x Appendix F Factory Page 53 features and benefits 2 Filter 38 Filter Time 60 filter time constant 60 Function 39 42 functions 3 Function Instance 39 42 Function Key Menu 26 44 65 G Global Menu 44 Guaranteed Soak Deviation 45 52 Guaranteed Soak Enable 45 52 H Hardware ID 55 Heater Error 23 29 35 65 Heat Algorithm 40 61 Heat Hysteresis 33 62 Heat Power 28 32 58 Heat Proportional Band 33 57 62 High Power Scale 42 high range 60 high scale 60 High Set Point Alarm 34 64 Current 35 65 Limit 31 Loop 60 Home Page 57 Hours 48 Hysteresis 40 43 64 Idle Set Point 28 33 Infinity Key 23 Input Error Failure 41 61 Input Error Latching 61 input events 3 Input Function Instance 40 installation 5 12 Instance 44 54 instance defined 3 Integrate 40 J Jump Count 48 Jump Count Remaining 36 52 Jump Loop 47 49 Jump Step 48 K keys 23 L labels See sub assembly labels Latching 43 65 Level 39 Limit Enable 43 Limit Menu 31 40 Limit State 32 Linearizati
43. Page Step 32 Jump Count unsigned 1135 RUI Modbus Profile Management Profiling Page Step 32 Jump Step unsigned 1134 RUI Modbus Watlow EZ ZONE ST e 82 e Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 32 Minutes unsigned 1124 RUI Modbus Profile Management Profiling Page Step 32 Rate IEEE Float 1126 RUI Modbus Profile Management Profiling Page Step 32 Seconds unsigned 1125 RUI Modbus Profile Management Profiling Page Step 32 Step Type unsigned 1120 RUI Modbus Profile Management Profiling Page Step 32 Target Set Point IEEE Float 1121 RUI Modbus Profile Management Profiling Page Step 32 Wait Event Event 1 unsigned 1130 RUI Modbus Profile Management Profiling Page Step 32 Wait Event Event 2 unsigned 1131 RUI Modbus Profile Management Profiling Page Step 32 Wait For Process IEEE Float 1132 RUI Modbus Profile Management Profiling Page Step 33 End Type unsigned 1156 RUI Modbus Profile Management Profiling Page Step 33 Event Output 1 unsigned 1148 RUI Modbus Profile Management Profiling Page Step 33 Event Output 2 unsigned 1149 RUI Modbus Profile Management Profiling Page Step 33 Hours unsigned 1143 RUI Modbus Profile Management
44. Page Step 8 Jump Step unsigned 654 RUI Modbus Profile Management Profiling Page Step 8 Minutes unsigned 644 RUI Modbus Profile Management Profiling Page Step 8 Rate IEEE Float 646 RUI Modbus Profile Management Profiling Page Step 8 Seconds unsigned 645 RUI Modbus Profile Management Profiling Page Step 8 Step Type unsigned 640 RUI Modbus Profile Management Profiling Page Step 8 Target Set Point IEEE Float 641 RUI Modbus Profile Management Profiling Page Step 8 Wait Event Event 1 unsigned 650 RUI Modbus Profile Management Profiling Page Step 8 Wait Event Event 2 unsigned 651 RUI Modbus Profile Management Profiling Page Step 8 Wait For Process IEEE Float 652 RUI Modbus Profile Management Profiling Page Step 9 End Type unsigned 676 RUI Modbus Profile Management Profiling Page Step 9 Event Output 1 unsigned 668 RUI Modbus Profile Management Profiling Page Step 9 Event Output 2 unsigned 669 RUI Modbus Profile Management Profiling Page Step 9 Hours unsigned 663 RUI Modbus Profile Management Profiling Page Step 9 Jump Count unsigned 675 RUI Modbus Profile Management Profiling Page Step 9 Jump Step unsigned 674 RUI Modbus Profile Management Profiling Page Step 9 Minutes unsigned 664 RUI Modbus Profile Management Profiling Page Step 9 Rate IEEE Float 666 RUI Modbus Profile Management Profiling Page Step 9 Seconds unsigned 665 RUI Modbus Profile Management Profiling Page Step 9 Step Type unsigne
45. RUI Modbus Profile Management Profiling Page Step 35 Wait Event Event 2 unsigned 1191 RUI Modbus Profile Management Profiling Page Step 35 Wait For Process IEEE Float 1192 RUI Modbus Watlow EZ ZONE ST e 83 o Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 36 End Type unsigned 1216 RUI Modbus Profile Management Profiling Page Step 36 Event Output 1 unsigned 1208 RUI Modbus Profile Management Profiling Page Step 36 Event Output 2 unsigned 1209 RUI Modbus Profile Management Profiling Page Step 36 Hours unsigned 1203 RUI Modbus Profile Management Profiling Page Step 36 Jump Count unsigned 1215 RUI Modbus Profile Management Profiling Page Step 36 Jump Step unsigned 1214 RUI Modbus Profile Management Profiling Page Step 36 Minutes unsigned 1204 RUI Modbus Profile Management Profiling Page Step 36 Rate IEEE Float 1206 RUI Modbus Profile Management Profiling Page Step 36 Seconds unsigned 1205 RUI Modbus Profile Management Profiling Page Step 36 Step Type unsigned 1200 RUI Modbus Profile Management Profiling Page Step 36 Target Set Point IEEE Float 1201 RUI Modbus Profile Management Profiling Page Step 36 Wait Event Event 1 unsig
46. Range Default Appears Description If Communications Menu RUI Address 1 to 8 1 always Ad S Set the address of this RUI Each RUI on the net work must have a unique address Start Zone 1 to 16 1 always Set the lowest address that this RUI will commu ae nicate with Narrowing the range of addresses will speed up some operations The positions of the Operations Page and Profiling Page in the ranges below can be changed in the Lock Menu Factory Page See the exam ples at the end of this chapter To go to the RUI Page from the Home Page press both the Down Q and Advance keys for three seconds L local will appear in the Zone Display 5U5 will ap pear in the upper display and will appear in the lower display Number of Zones Set the number of contiguous addresses that this RUI will communicate with Narrowing the range of addresses will speed up some operations nU Zn Lockout Menu Read Lock Set the read only security clearance level The user can access the selected level and all lower levels If the Set Lock level is higher than the Read Lock the Read Lock level takes priority rLoC SLoC Set Lock SLoC Set the read write security clearance level The us er can access the selected level and all lower levels If the Set Lock level is higher than the Read Lock the Read Lock level takes priority d H9 Diagnostics Menu User Restore Set Restore the factory default RUI Page sett
47. SEA Sensor Type 38 60 5 5 Scale High 38 60 5 d Software ID 24 55 5 L o Scale Low 38 60 SL of Set Lockout Security 66 St o C Set Lock 24 Sn S0AH SP SPLo LSP Sri St 2n Se SEP SE YP Serial Number 24 55 o RH Soak 47 49 PH Open Loop High Set Point k P L o Open Loop Low Set Point k P r Software Prototype 24 55 L Software Release 24 55 E G a Start Zone 24 Step Time Remaining 36 t P Current Step 35 YP Step Type 35 47 49 Autotune Aggressiveness A E b a d TRU TUNE Band 40 td Time Derivative 34 57 62 E 9 n TRU TUNE Gain 40 E 9 5 P Target Set Point 36 47 t Time 47 49 E Time Integral 34 57 62 EE Un TRU TUNE Enable 40 EUnE Tuning 23 29 E UNE Autotuning 69 U 5 User Restore Set 24 55 57 US c 5 US tP User Save Set 25 55 57 t P Unused Step 47 49 vAll U 70 b db o Wait For Both 47 49 LG JE Wait For Event 47 49 LJE I Wait Event 1 48 GL JEO Wait Event 2 48 UdP re Wait For Process Value 48 bL AP Wait For Process 47 49 AC Line Frequency 44 63 address Modbus 21 Advance Key 23 agency approvals 2 86 alarms 64 Blocking 43 65 clearing 23 deviation 64 Display 43 Hysteresis 43 64 Latching 43 64 Logic 43 process 64 Set points 64 Sides 43 Silencing 43 65 Source 42 Source Inst
48. Status Active Step View the currently running step Profile Status Step Type View the currently running step type must be set to 0 7 seconds or more 1 999 000 to 9 999 000 286 float Current Sides rw Setup Page is set to High or Both 1 999 000 to 9 999 000 288 float Current Sides rw Setup Page is set to Low or Both 1 999 000 to 9 999 000 38 float read only non E None 61 40 unsigned Shorted 127 read only oP Ea Open 65 inon None 61 282 unsigned A Gh High 37 read only Low 53 Some parameters in the Profile Status Menu can be changed for the currently running profile but should only be changed by knowledgeable personnel and with caution Changing parameters via the Profile Status Menu will not change the stored profile but will have an immediate impact on the profile that is run ning Changes made to profile parameters in the Profiling Pages will be saved and will also have an immediate impact on the running profile 0 to 40 0 none 292 unsigned 0 no profile is running rw nonE No Action 61 None 306 unsigned Pc oF Start a Profile rw 77 St EP Start a Step 89 PAUS Pause 146 ESU Resume 147 End End 148 296 unsigned read only Unused Step Unused Time Step Rate Soak Wait Event Wait For Process Wait For Both Jump Loop End a file is running Note Some values will be rounded off to fit in the four character display F
49. The negative lead usually red must be connected to S2 To reduce errors the extension wire for thermocouples must be of the same alloy as the thermocouple trical sensors or peripheral x F ST_L ____ ____ limit devices Failure to do so may Ro result in damage to equip ment and property and or injury or loss of life Input 2 RTD Slot A Slot A e platinum 100 and 1 000 0 0 C NOTE To prevent ground e calibration to DIN curve 0 00385 0 Q C loops isolation needs to be 20 Q total lead resistance maintained from input to out p reper put when using switched DC 0 03 C or analog process outputs For 3 wire RTDs the S1 lead usually white must s2 T2 be connected to R2 For best accuracy use a 3 wire RTD to compensate ES S2 3392 for lead length resistance All three lead wires must have the same resistance CAUTION Always mount the R2 SERE ST L limit controller with the heat sink 2 wire SWIG fins aligned vertically Input 2 Process NOTE Terminals L4 and sos SOLA A on the limit connector are jumpered at the factory to complete the contactor e 0 to 20 mA 100 Q input impedance circuit
50. and Benefits Back panel or DIN rail mount Provides several mounting options Compact package Reduces panel size Touch safe package e P2X Touch safe with back of hand ncreases safety for installers and operators 0 1 percent temperature accuracy Provides efficient and accurate temperature control Agency approvals s with factory installed heatsink Wh without factory installed heat sink CE RoHS W E E E CSA NEMA 4 RUI e Limit version features FM approval e Provides third party recognition Three year warranty e Provides Watlow reliability and product support Off the shelf designed system solution e Improves system reliability and reduces wiring Reduces installation cost Eliminates compatibility headaches often encoun tered when using many different components and brands Solid state relay output Provides faster cycling more precise control in creased heater life and energy efficiency PID temperature control Provides accurate temperature control Provides a single input and dual outputs Provides standard or advanced PID tuning algo rithms Optional 485 Modbus communication Provides connectivity to PC or PLC networks Optional temperature limit ncreases safety during under and over tempera ture conditions Optional mechanical contactor Enables circuit safety shutdown driven by a limit controller or a PID alarm output signal Optional current monit
51. and the controller restarted for the new ad dress be become available on the Modbus network The Modbus addresses set by software will override only address 8 but lower addresses set on the DIP switch will override the software assigned addresses As many as 32 controllers can be connected to a net work The Standard bus address of an EZ ZONE ST con troller with the Modbus RTU option ST M ranges from 1 to 8 because DIP switch 4 is reserved for switching Modbus on or off 1 to 247 on Set switch 4 to on to use Modbus communications Modbus addresses from 1 to 247 can be programmed into the controller using Standard bus communications After the Modbus ad dress is changed all four DIP switches must be turned on set to 8 for the new address be become available on the Modbus network CAUTION Changes set by Modbus are immediate Users will not be able to communicate with the controller after its address parity or baud rate has been changed The master device will need to be configured to the new settings The Modbus communications parameters are in the Communications Menu of the Configurator setup software Communications Range Modbus Parameter Name less 40 001 offset Address when all four DIP 1 to 247 313 unsigned rw switches are set to on Baud 9 600 188 314 unsigned rw 19 200 189 38 400 190 Parity Even 191 315 unsigned rw Odd 192 None 61 Non Volatile Save Yes 106 3
52. as above Submenu SO d olto Si v oPEcj d oj 2 doSle E 5e Digital Digital 1 05 Output State Event Status Input Output Submenu Menu on o vo vo RO Digital 1 06 Same as above Submenu Ner Pico Y oPEr o gt LLSIe LAS Limit Menu Limit Low Limit High on Set Point Set Point vo Navigating the Operations Page NOTE Some of these menus and parameters may not ap pear depending on the controller s options See model number information in the Appendix for more information SOP Ton Y oPEcje CPA amp Pcje CPce CSP PuRIe Monitor Control Heat Power Cool Power Closed Loop Process Menu Mode Active Set Point Value Active o Yo KOL oo PCO Y oPEc e CP e IRESPIe RUE CS5PIe d5le hPble hhyie CPble Chgle2 E e tde 5 dgble oSPle Loop Menu Control Autotune Autotune Closed Loop Idle Set Heat Propor Heat Hyster Cool Propor Cool Hyster Time Integral Time Deriva Dead Band Open Loop o Mode Set Point Request Set Point Point tional Band esis tional Band esis tive Set Point vo ROALP ICO eo v oPEcje ALPI RLoe Rh e Alarm Menu Alarm1 AlarmLow Alarm High on Submenu Set Point Set Point vo on vo RO Alarm2 Same as above Submenu ROCUrr co Vv oPEcje Ch e2 CLole CUr CEcje hEc je Current Active High Active Low Current Read Current Error Heater Error Menu Set Point Set Point ot vo ROPSEAICO Y
53. be deter mined due to lack of sensor input Alarm Error AL e Sensor input below low alarm set point Sensor input above high alarm set point Ec I Error Input Er Sensor does not provide a valid signal to controller Limit will not clear or reset with keypad or digital input Limit won t clear or reset Limit state cannot be deter mined due to lack of sensor input limit will trip 9 Limit Error e Alarm latching is active e Alarm set to incorrect output e Alarm is set to incorrect source Sensor input is out of alarm set point range e Alarm set point is incorrect e Alarm is set to incorrect type Digital input function is incorrect Alarm silencing is active Alarm blocking is active Alarm is set to incorrect output Alarm is set to incorrect source Alarm set point is incorrect Alarm is set to incorrect type Sensor improperly wired or open Incorrect setting of sensor type Calibration corrupt Temperature is less than alarm set point Alarm is set to latching and an alarm occurred in the past Incorrect alarm set point Incorrect alarm source Temperature is greater than alarm set point Alarm is set to latching and an alarm occurred in the past Incorrect alarm set point Incorrect alarm source Sensor improperly wired or open Incorrect setting of sensor type Calibration corrupt Sensor input is out of limit set point range Limit s
54. relay coils solenoids etc with the mechanical relay solid state relay or open collector output options requires use of an R C sup pressor Output 1 Solid state Relay with a Contactor OO JI Output 1 SSR See Quencharc note ST__ B earth ground contactor Output 1 Solid state Relay without a Contactor fuse fuse Output 1 SSR See Quencharc note ST A_ E EZ ZONE ST Integrated Control Loop no contactor Output 2 Mechanical Relay Form A e 5 A at 240V ac or 30V dc maximum resistive load Slot B 20 mV at 24V minimum load nomal oen o 125 VA pilot duty 120 240V K2 ac 25 VA at 24V ac 100 000 cycles at rated load Output does not supply power common for use with ac or dc See Quencharc note ST H D J C d Mechanical normally L2 Open kg common Internal Circuitry Output 2 Solid state Relay Form A 0 5 A at 20 to 264V ac maxi mum resistive load e 20 VA 120 240V ac pilot duty opto isolated without contact L2 suppression K2 e maximum off state leakage of 105 microamperes Output does not supply power Do not use on dc loads See Quencharc note ST K B P E normally open common Solid state Relay normally L2 open s
55. set to PID and TRU TUNE En able is set to Yes Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 40 e Chapter 6 Setup Page Parameter Name Range Default Modbus Appears If Description i Integer values for Modbus in less 40 001 offset parenthesis read write Under 99 Critical 259 unsigned Cool Algorithm Autotune Aggressiveness Critical 21 rw or Heat Algo Select the aggressiveness of the auto Over 69 rithm is set to tuning calculations Off sets output User 214 unsigned Input Error Failure r to 0 62 rw Select what the controller will do Bumpless main when an error is detected and control tains same output power changes to manual mode if it was less than 75 and stable otherwise 0 14 Manual Fixed sets t power to Manual Power setting 54 USE c User sets output power to last open loop set point the user entered Loop Set Point Open Loop Limit 211 float Input Error Manual Power Low to Set Point Open rw Failure is set to Set the manual output power level Loop Limit High Fixed that will take effect if an input error failure occurs Loop Off 62 Ramp Action Startup 88 Select when the controller s set p
56. specified deviation from set point TRU TUNE can be deactivated but it is not necessary to do so General Application Guidelines As stated above TRU TUNE adjusts controller pa rameters to adapt to changing conditions Bear in mind if system operation is expected to be interrupted by known abnormal process variations and during this period there is no desire for the PID terms to be modified TRU TUNE should be deactivated Other wise the TRU TUNE algorithm will continue to mod ify PID parameters seeking performance gains when in fact no further changes are needed or desired Examples include Batch Processing During production operations TRU TUNE should be deactivated when product is being loaded or unloaded since processing is not oc curring Once the known interruption has ended re en gage TRU TUNE Manual Interruption of Load Power but not Con troller Power When the controller is powered but the load is without power For instance when a fuse is being replaced it is an inappropriate time to adjust PID coefficients since there is an open control loop condition TRU TUNE should be disengaged and then re engaged once power is restored to the load TRU TUNE Settings Two parameters are provided for adjusting TRU TUNE behavior TRU TUNE Band and TRU TUNE Gain 9a Setup Page Loop Menu Their default values are designed to be suitable for the vast majority of industrial applications For the few cases wh
57. than the set point and the cooling parameter takes ef fect when the process temperature is higher than the set point Adjust the proportional band with Heat Propor tional Band or Cool Proportional Band Operations Page Loop Menu 4 Set Point Pat Proportional Band Droop Temperature Time Proportional plus Integral PI Control The droop caused by proportional control can be cor rected by adding integral reset control When the system settles down the integral value is tuned to bring the temperature or process value closer to the set point Integral determines the speed of the correc tion but this may increase the overshoot at startup or when the set point is changed Too much integral ac tion will make the system unstable Integral is cleared when the process value is outside of the proportional band Adjust the integral with Time Integral Op erations Page Loop Menu Proportional plus Integral plus Derivative PID Control Use derivative rate control to minimize the overshoot in a PI controlled system Derivative rate adjusts the output based on the rate of change in the temperature or process value Too much derivative rate will make the system sluggish Derivative action is active only when the process value is within twice the proportional value from the set point Adjust the derivative with Time Derivative Operations Page Loop Menu Reduced Overshoot Set Point
58. that output 3 is in an on state amp Control O Patent s A O bae 9j EZ ZONE ST P LOumit OSSR oo lOovra Osrarus ES O OUT 2 ES Q n Address N Selection Ww A Control CF L2 CD K2 CE T1 B5 SILTT Del R D5 I Solid state Relay Indicates that the solid state relay is in an on state Status Flashing green indicates the controller is running with no input errors Flashing red indicates an input error No flashing indicates that the controller is not functioning Output 2 Indicates that output 2 is in an on state Watlow EZ ZONE ST e 27 e Chapter 3 Remote User Interface RUI Chapter 4 Home Page Default Home Page Parameters The Home Page is a customized list of as many as 20 Use the Advance Key to step through the other parameters that can be configured and changed in the parameters The parameter prompt will appear in the Custom Menu Factory Page The default list lower display and the parameter value will appear in of 10 parameters below includes the Active Process the upper display You can use the Up O and Down Value value in upper display and Act
59. value of the ramp rate is the maximum degrees per minute or hour that the system temperature can change Select Ramp Action Setup Page Loop Menu ramping not active St ramp at startup St PE ramp at a set point change ramp at startup or when the set point changes Select whether the rate is in degrees per minute or degrees per hour with Ramp Scale e SC Set the ramping rate with Ramp Rate Setup Page Loop Menu Temperature Temperature reaches Set Point quickly Time Set Point Temperature per minute Temperature ramps to Set Point at a set rate Time Alarms Alarms are activated when the output level process value or temperature leaves a defined range A user can configure how and when an alarm is triggered what action it takes and whether it turns off automat ically when the alarm condition is over Configure alarms in the Setup Page before setting alarm set points Alarms do not have to be assigned to an output Alarms can be monitored and controlled through the front panel or by using software Process and Deviation Alarms A process alarm uses one or two absolute set points to define an alarm condition A deviation alarm uses one or two set points that are defined relative to the control set point High and low alarm set points are calculated by adding or sub tracting offset values from the control set point If the set point changes the window defined by the al
60. where up to 16 controllers can be connected on the network A RUI remote user interface will only recognize addresses 1 through 4 where the relationship between the RUI and the controller it is connected to is selected on the RUI As many as eight RUIs can be connected to a net work and assigned addresses 1 to 8 As many as four personal computers can beconnect ed to a network and assigned addresses 1 to 4 The Standard bus address of an EZ ZONE ST con troller with the Modbus RTU option ST M Watlow EZ ZONE ST e 21 Chapter 2 Install and Wire ranges from 1 to 8 because DIP switch 4 is reserved for switching Modbus on or off T mese O e 3 2 3 4 The Standard bus address of an EZ ZONE ST controller with the Modbus RTU option ST M ranges from 1 to 8 because DIP switch 4 is reserved for switching Modbus on or off Note Excessive writes to EEPROM over Modbus can cause premature EEPROM failure The EEPROM is rated for 1 000 000 writes See Saving Settings to Nonvolatile Memory in Chapter 2 Install and Wire Watlow EZ ZONE ST e 22 Chapter 2 Install and Wire 3 Chapter 3 Using the Interfaces Remote User Interface RUI Keys and Displays Upper Display In the Home Page displays the process value otherwise dis plays the value of the param eter in the lower display Zone Display Indicates the controller zone that the remote user interface R
61. 17 unsigned rw ST Firmware 2 and higher No 59 The following data type conventions are used for Modbus registers unsigned 16 bit unsigned integer signed 16 bit signed integer float 32 bit IEEE floating point value long 32 bit unsigned integer Saving Settings to Nonvolatile Memory When controller settings are entered from a remote user interface RUD changes are always saved to nonvolatile memory an EEPROM If the controller loses power or is switched off its settings will be re stored when it starts again The EEPROM will wear out after about 1 000 000 writes which should not be a problem with changes made from the RUI However if the controller is receiving instructions from a PLC or a computer through a network connection the EEPROM could over time wear out The Nonvolatile Memory Save parameter allows the user to save settings made over the network to either volatile or nonvolatile memory By default settings made through the network are not saved to nonvolatile memory However every time a setting is changed through an RUI all of the controller settings are saved to nonvolatile memory regardless of the setting of Nonvolatile Memory Save This parameter can only be changed via the network and will always be saved to nonvolatile memory See table above Watlow Standard Bus Controller Address The address of an EZ ZONE ST controller with the Watlow Standard bus option ST A ranges from 1 to 16
62. 3 Wait For Process IEEE Float 952 RUI Modbus Profile Management Profiling Page Step 24 End Type unsigned 976 RUI Modbus Profile Management Profiling Page Step 24 Event Output 1 unsigned 968 RUI Modbus Profile Management Profiling Page Step 24 Event Output 2 unsigned 969 RUI Modbus Profile Management Profiling Page Step 24 Hours unsigned 963 RUI Modbus Profile Management Profiling Page Step 24 Jump Count unsigned 975 RUI Modbus Profile Management Profiling Page Step 24 Jump Step unsigned 974 RUI Modbus Profile Management Profiling Page Step 24 Minutes unsigned 964 RUI Modbus Profile Management Profiling Page Step 24 Rate IEEE Float 966 RUI Modbus Profile Management Profiling Page Step 24 Seconds unsigned 965 RUI Modbus Profile Management Profiling Page Step 24 Step Type unsigned 960 RUI Modbus Profile Management Profiling Page Step 24 Target Set Point IEEE Float 961 RUI Modbus Profile Management Profiling Page Step 24 Wait Event Event 1 unsigned 970 RUI Modbus Profile Management Profiling Page Step 24 Wait Event Event 2 unsigned 971 RUI Modbus Profile Management Profiling Page Step 24 Wait For Process IEEE Float 972 RUI Modbus Profile Management Profiling Page Step 25 End Type unsigned 996 RUI Modbus Profile Management Profiling Page Step 25 Event Output 1 unsigned 988 RUI Modbus Profile Management Profiling Page Step 25 Event Output 2 unsigned 989 RUI Modbus Profile Management Profiling
63. 3400 oPExc Hold both keys for 3 seconds Home Page Process Value 12 34 6 Operations Page Analog Input Menu A Set Point 1 2340 0 gt Hold both keys for 6 seconds Home Page Process Value 1 23460 SEE Setup Page Profile 1 Set Point 12 34 ProF Hold key for 3 seconds Home Page Process Value 2 3460 Profile Page Custom Menu CUSE Set Point 2374 O7 gt Hold both keys for 6 seconds Fct Y Factory Page Watlow EZ ZONE ST s 29 o Chapter 4 Home Page Chapter 5 Operations Page To go to the Operations Page from the Home Page press e Press the Advance Key to move through the pa both the Up O and Down keys for three seconds rameters of the submenu will appear in the upper display and e Press the Infinity Key to move backwards will appear in the lower display through the levels parameter to submenu sub Press the Up O or Down O key to move through menu to menu menu to Home Page the menus Press and hold the Infinity Key for two seconds Press the Advance Key to move to a submenu to return to the Home Page Press the Up or Down Q key to move through the submenus Home Page Operations Page Parameters LP eo Rel leo v SPoo oPE e R e2 Pule Erol CR Hole BoWrkoys Analog Input1 Process Input Error Calibration Input Menu Submenu Value Offset o o vo vo RO Input2 Same
64. 7n or _ Waltforevent2tobeof o event outputs 7 e sSeEetioot f event output 7e e sSeEwnzoo O 32 WaitFor Process 720 209 The second stop wil be a wait tor Process step Target SetPoint 721 100 wat tortne process value to reach ioo Ff event Outputs z8 es SetEventttoon O O _ ewowua 729 e samenon Soak 7o es emdsepwibeaSocksep Her O J 1 Set the soak time for one hour one minute and one wm 7 i e sos 7 o event outputs OO e sanno eee es a NEM Lm m memmeewtemEuem 00 E TU At the end of the profile the controller will revert to the set point that was in effect before the profile began Modbus Registers for Controlling and Monitoring a Profile Function Range Modbus Address Integer values for Modbus in parentheses less 40 001 offset Read Write ven ui 5 ubi rw Monitor Profile State Off 62 294 unsigned Running 149 read only Pause 146 Monitor Current File 0 to 40 295 unsigned read only Active Step 0 to 40 296 unsigned read only Active Set Point 1 999 000 to 9 999 000 F or units 29 float 1 128 000 to 5 537 000 C read only Guaranteed Soak Enable Off 62 299 unsigned On 63 rW Guaranteed Soak Deviation 1 999 to 9 999 300 float rw Profile Start Type Set Point 85 302 unsigned Process 75 rw Step Time Remaining 0 to 9 999 seconds 303 float read only
65. Base IEEE Float 145 RUI Modbus Digital 1 0 Setup Output Output 3 Control unsigned 157 RUI Modbus Digital I O Setup Output Output 3 Function unsigned 160 RUI Modbus Digital 1 0 Setup Output Output 3 Function Instance unsigned 161 RUI Modbus Digital 1 0 Setup Output Output 3 High Power Scale IEEE Float 167 RUI Modbus Digital 1 0 Setup Output Output 3 Low Power Scale IEEE Float 165 RUI Modbus Digital 1 0 Setup Output Output 3 Time Base IEEE Float 158 RUI Modbus Event Setup Digital I O Digital Input 5 Level unsigned 264 RUI Modbus Event Setup Digital I O Digital Input 5 Source Instance unsigned 265 Modbus only Event Setup Digital I O Digital Input 6 Level unsigned 268 RUI Modbus Event Setup Digital I O Digital Input 6 Source Instance unsigned 269 Modbus only Event Setup Digital I O Digtial Input 5 Function unsigned 266 RUI Modbus Event Setup Digital I O Digtial Input 5 Function Instance unsigned 267 RUI Modbus Event Setup Digital I O Digtial Input 6 Function unsigned 270 RUI Modbus Event Setup Digital I O Digtial Input 6 Function Instance unsigned 271 RUI Modbus Limit Operation Limit Limit Clear Request unsigned 272 Modbus only Limit Operation Limit Limit High Set Point IEEE Float 277 RUI Modbus Limit Setup Limit Limit Hysteresis IEEE Float 273 RUI Modbus Limit Setup Limit Limit Integrate unsigned 316 RUI Modbus Limit Operation Limit Limit Low Set Point IEEE Float 275 RUI Modbus Lim
66. Down Q key to scroll through the functions that can be assigned to the EZ Key When Profile Start Stop appears in the upper display and appears in the lower display press the Advance Key once to select that function and move to the Function Instance F 5 parameter Watlow EZ ZONE ST e 65 Chapter 9 Features 5 Press the Up or Down Q key to scroll to the pro file that you want the EZ Key to control The instance tells the controller which of the num bered functions should be acted upon For profiles there are 4 instances Press the Infinity Key once to return to the submenu twice to return to the main menu or three times to return to the Home Page 6 Using the software with Standard Bus 1 Make the necessary physical connections between the personal computer and the controller Set Pro tocol Setup Page Communications Menu to Stan dard Bus Run the software and allow it to connect to the controller by directing it or allowing it to find the appropriate communications port After the software connects to the controller look on the left side of your screen under the Param eters Menus for Function Key under Setup Click on the plus sign to reveal the Function Key 1 sub menu Click on Function Key 1 then select a Digital In put Function and a Function Instance If you want to start and stop a profile with the EZ Key select Profile Start Stop and the number of the profile that you want
67. EEE Float 766 RUI Modbus Watlow EZ ZONE ST e 7 7 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 14 Seconds unsigned 765 RUI Modbus Profile Management Profiling Page Step 14 Step Type unsigned 760 RUI Modbus Profile Management Profiling Page Step 14 Target Set Point IEEE Float 761 RUI Modbus Profile Management Profiling Page Step 14 Wait Event Event 1 unsigned 770 RUI Modbus Profile Management Profiling Page Step 14 Wait Event Event 2 unsigned 771 RUI Modbus Profile Management Profiling Page Step 14 Wait For Process IEEE Float 772 RUI Modbus Profile Management Profiling Page Step 15 End Type unsigned 796 RUI Modbus Profile Management Profiling Page Step 15 Event Output 1 unsigned 788 RUI Modbus Profile Management Profiling Page Step 15 Event Output 2 unsigned 789 RUI Modbus Profile Management Profiling Page Step 15 Hours unsigned 783 RUI Modbus Profile Management Profiling Page Step 15 Jump Count unsigned 795 RUI Modbus Profile Management Profiling Page Step 15 Jump Step unsigned 794 RUI Modbus Profile Management Profiling Page Step 15 Minutes unsigned 784 RUI Modbus Profile Management Profiling Page Step 15 Rate IEEE
68. EZ ZONE ST User s Manual Integrated Control Loop TOTAL CUSTOMER SATISFACTION 3 Year Warranty ISO 9001 Bas LOW 1241 Bundy Boulevard Winona Minnesota USA 55987 Phone 1 507 454 5300 Fax 1 507 452 4507 http www watlow com Registered Company Winona Minnesota USA 0600 0052 0000 Rev E Made in the U S A UNITE TA A PR October 2007 15 00 Safety Information We use note caution and warning symbols throughout this book to draw your attention to important operation al and safety information A NOTE marks a short message to alert you to an important detail A CAUTION safety alert appears with information that is important for protecting your equipment and performance Be especially careful to read and follow all cautions that apply to your application A WARNING safety alert appears with information that is important for protecting you others and equip ment from damage Pay very close attention to all warn ings that apply to your application The safety alert symbol A an exclamation point in a triangle precedes a general CAUTION or WARNING statement The electrical hazard symbol A a lightning bolt in a triangle precedes an electric shock hazard CAUTION or WARNING safety statement IN CAUTION or WARNING AN Electrical Shock Hazard CAUTION or WARNING Warranty The EZ ZONE ST is manufactured by ISO 9001 regis tered processes and is backe
69. Electrical Measurement to see whether it now matches the signal If it doesn t match ad just Electrical Offset again 6 Apply the high source signal to the input Mea sure the signal to ensure it is accurate 7 Read the value of Electrical Measurement for that input 8 Calculate the gain value by dividing the low source signal by this value 9 Set Electrical Slope Factory Page Cali bration Menu for this input to the calculated gain value 10 Check the Electrical Measurement to see wheth er it now matches the signal If it doesn t match adjust Electrical Slope again Set Electrical Offset to 0 and Electrical Slope to 1 to restore factory calibration Follow these steps for an RTD input 1 Measure the low source resistance to ensure it is accurate Connect the low source resistance to the input you are calibrating 2 Read the value of Electrical Measurement PAu Factory Page Calibration Menu for that input 3 Calculate the offset value by subtracting this value from the low source resistance 4 Set Electrical Offset Factory Page Cali bration Menu for this input to the offset value 5 Check the Electrical Measurement to see whether it now matches the resistance If it doesn t match adjust Electrical Offset again 6 Measure the high source resistance to ensure it is accurate Connect the high source resistance to the input 7 Read the value of Electrical Measurement for that input 8 Calculate the g
70. End Type unsigned 1116 RUI Modbus Profile Management Profiling Page Step 31 Event Output 1 unsigned 1108 RUI Modbus Profile Management Profiling Page Step 31 Event Output 2 unsigned 1109 RUI Modbus Profile Management Profiling Page Step 31 Hours unsigned 1103 RUI Modbus Profile Management Profiling Page Step 31 Jump Count unsigned 1115 RUI Modbus Profile Management Profiling Page Step 31 Jump Step unsigned 1114 RUI Modbus Profile Management Profiling Page Step 31 Minutes unsigned 1104 RUI Modbus Profile Management Profiling Page Step 31 Rate IEEE Float 1106 RUI Modbus Profile Management Profiling Page Step 31 Seconds unsigned 1105 RUI Modbus Profile Management Profiling Page Step 31 Step Type unsigned 1100 RUI Modbus Profile Management Profiling Page Step 31 Target Set Point IEEE Float 1101 RUI Modbus Profile Management Profiling Page Step 31 Wait Event Event 1 unsigned 1110 RUI Modbus Profile Management Profiling Page Step 31 Wait Event Event 2 unsigned 1111 RUI Modbus Profile Management Profiling Page Step 31 Wait For Process IEEE Float 1112 RUI Modbus Profile Management Profiling Page Step 32 End Type unsigned 1136 RUI Modbus Profile Management Profiling Page Step 32 Event Output 1 unsigned 1128 RUI Modbus Profile Management Profiling Page Step 32 Event Output 2 unsigned 1129 RUI Modbus Profile Management Profiling Page Step 32 Hours unsigned 1123 RUI Modbus Profile Management Profiling
71. FSPIO gt AREE gt Ent I e Ent 2e Profile 2 Q Rate Target Set Rate Event Event Q Vo on Point Output 1 Output 2 vo Steps 11 to 20 vo Profile 2 se P3 o etl SofH lt v Pr oFje P3 St YP gt hoUr e P7 n e SECIe Ent NO gt Ent ale Profile 3 O Soak Hours Minutes Seconds Event Event Q Vo on Output 1 Output 2 Vo Steps 21 to 30 vo Profile 3 se Pueo 3l LUJEJO v Pr oFje Pu GE SgPje LUE N gt LUE C gt Ent o gt EREDO Profile 4 on Wait Event WaitEvent1 WaitEvent2 Event Event Q Vo on Output 1 Output 2 vo Steps 31 to 40 vo Profile 4 buPr o M StgPe lbJUPr Je Ent 10 gt Ent2 Wait For Wait for Event Event NOTE Some of these menus and Process Process Output 1 Output 2 parameters may not appear depend on Value 1 Vo ing on the controller s options See model number information in the Ap bdbolce v pendix for more information St gPje LUPc e LUE 1e LUEO e Ent IIe Ent 2e Wait For Both Wait for Wait Event1 WaitEvent2 Event Event Q Process Output 1 Output 2 vo Value JLO V 5tgPe JSe Jte Ent l e Ent2ae Jump Loop Jump Step Jump Count Event Event Step Output 1 Output 2 on vo Endi o StgPe End EndStep End Set o Point vo Unused Step on vo Watlow EZ ZONE ST e 46 o Chapter 7 Profiling Page The Profiling Page allows you to enter your ramp and soak profile information To go to the Profiling Page from the Home Page press the Advance Key
72. For Process IEEE Float 712 RUI Modbus Profile Management Profiling Page Step 12 End Type unsigned 736 RUI Modbus Profile Management Profiling Page Step 12 Event Output 1 unsigned 728 RUI Modbus Profile Management Profiling Page Step 12 Event Output 2 unsigned 729 RUI Modbus Profile Management Profiling Page Step 12 Hours unsigned 723 RUI Modbus Profile Management Profiling Page Step 12 Jump Count unsigned 785 RUI Modbus Profile Management Profiling Page Step 12 Jump Step unsigned 734 RUI Modbus Profile Management Profiling Page Step 12 Minutes unsigned 724 RUI Modbus Profile Management Profiling Page Step 12 Rate IEEE Float 726 RUI Modbus Profile Management Profiling Page Step 12 Seconds unsigned 725 RUI Modbus Profile Management Profiling Page Step 12 Step Type unsigned 720 RUI Modbus Profile Management Profiling Page Step 12 Target Set Point IEEE Float 721 RUI Modbus Profile Management Profiling Page Step 12 Wait Event Event 1 unsigned 730 RUI Modbus Profile Management Profiling Page Step 12 Wait Event Event 2 unsigned 731 RUI Modbus Profile Management Profiling Page Step 12 Wait For Process IEEE Float 732 RUI Modbus Profile Management Profiling Page Step 13 End Type unsigned 756 RUI Modbus Profile Management Profiling Page Step 13 Event Output 1 unsigned 748 RUI Modbus Profile Management Profiling Page Step 13 Event Output 2 unsigned 749 RUI Modbus Profile Management Profiling Page Step
73. Jump Count Remaining 0 to 9 999 305 unsigned read only Profile Action Request None 61 306 unsigned Start Profile 77 write only Pause Profile 146 Resume Profile 147 Terminate Profile 148 Start Step 89 Watlow EZ ZONE ST e 52 Chapter 7 Profiling Page Chapter 8 Factory Page To go to the Factory Page from the Home Page press and hold both the Advance and Infinity keys for six seconds e Press the Advance Key to move through the parameter prompts Navigating the Factory Page Home Page Factory Page P jeo CuSe lt o___ co SPee FCEge CuSte PAT Hold both keys Custom Parameters Custom 1 Parameter for 6 seconds Menu Submenu on Q vo Vo R Custom2 Same as above to 20 Submenu noL LoC co Y FCEY AL oll ETP Lockout Lock Lock Menu Operations Profiling on Page Page vo sed A90 e Press the Up O or Down Q keys to change the parameter value Press the Infinity Key to return to the Home Page NOTE Some of these menus and param eters may not appear depending on the controller s options See model number information in the Appendix for more infor mation E FOE YO PL ge Sr L gt SP e Sb5Lgle Snl gt dRt E gt Sr je uSc 5 e Software Serial Date of User Restore User Save Number Manufacture Set Set Diagnostic Software ID Software Software Menu Release Prototype on vo nol CALES Eo Rz 7 FCtgye CA
74. LIO gt _ P nuje EL wo OPEL 5 Calibration Calibration 1 Electrical Electrical Menu Submenu Measure Offset Electrical on on ment Vo Vo RO Calibration 2 Same as above Submenu Watlow EZ ZONE ST e 53 Chapter 8 Factory Page Parameter Name Description Display Custom Menu Parameter 1 to 20 Select the parameters that will ap pear in the Home Page The Parameter 1 value will appear in the upper display of the Home Page The Parameter 2 value will appear in the lower display in the Home Page If Parameter 3 is set to the default Action Prompt it will only appear if there is an error message Custom Menu Instance Select the parameters that will ap pear in the Home Page Lol Lockout Menu Lockout Menu Lock Operations Page Select the security level of the Op erations Page This affects whether parameters can be accessed using the RUI Lockout Menu Lock Profiling Page Select the security level of the Profil ing Page This affects whether param eters can be accessed using the RUI LoCP LoC P Range Integer values for Modbus in parentheses None Process Set Point Active Process Value Active Set Point Open Loop Set Point Action Prompt Calibration Offset Display Units Alarm Low Set Point Alarm High Set Point Alarm Hysteresis Autotune User Control Mode Heat Power Cool Power Time Integral Time Derivative Dead Band Heat Proportional Heat Hysteresis Cool H
75. Modbus Profile Management Profiling Page Step 4 Target Set Point IEEE Float 561 RUI Modbus Profile Management Profiling Page Step 4 Wait Event Event 1 unsigned 570 RUI Modbus Profile Management Profiling Page Step 4 Wait Event Event 2 unsigned 571 RUI Modbus Profile Management Profiling Page Step 5 End Type unsigned 596 RUI Modbus Profile Management Profiling Page Step 5 Event Output 1 unsigned 588 RUI Modbus Profile Management Profiling Page Step 5 Event Output 2 unsigned 589 RUI Modbus Profile Management Profiling Page Step 5 Hours unsigned 583 RUI Modbus Profile Management Profiling Page Step 5 Jump Count unsigned 595 RUI Modbus Profile Management Profiling Page Step 5 Jump Step unsigned 594 RUI Modbus Profile Management Profiling Page Step 5 Minutes unsigned 584 RUI Modbus Profile Management Profiling Page Step 5 Rate IEEE Float 586 RUI Modbus Profile Management Profiling Page Step 5 Seconds unsigned 585 RUI Modbus Profile Management Profiling Page Step 5 Step Type unsigned 580 RUI Modbus Profile Management Profiling Page Step 5 Target Set Point IEEE Float 581 RUI Modbus Profile Management Profiling Page Step 5 Wait Event Event 1 unsigned 590 RUI Modbus Profile Management Profiling Page Step 5 Wait Event Event 2 unsigned 591 RUI Modbus Profile Management Profiling Page Step 5 Wait For Process IEEE Float 592 RUI Modbus Profile Management Profiling Page Step 6 End Type unsigned 616 RUI
76. Operation Monitor Control Mode Active unsigned 222 RUI Modbus Control Loop Setup Loop Cool Algorithm unsigned 224 RUI Modbus Control Loop Operation Loop Cool Hysteresis IEEE Float 240 RUI Modbus Control Loop Operation Monitor Cool Power IEEE Float 242 RUI Modbus Control Loop Operation Loop Cool Proportional Band IEEE Float 238 RUI Modbus Control Loop Operation Loop Dead Band IEEE Float 230 RUI Modbus Control Loop Setup Loop Heat Algorithm unsigned 223 RUI Modbus Control Loop Operation Loop Heat Hysteresis IEEE Float 234 RUI Modbus Control Loop Operation Monitor Heat Power IEEE Float 236 RUI Modbus Control Loop Operation Loop Heat Proportional Band IEEE Float 232 RUI Modbus Control Loop Operation Loop Loop Action unsigned 225 RUI Modbus Control Loop Operation Loop Time Derivative IEEE Float 228 RUI Modbus Control Loop Operation Loop Time Integral IEEE Float 226 RUI Modbus Control Loop Setup Loop Tru tune Band unsigned 307 RUI Modbus Control Loop Setup Loop Tru tune Enable unsigned 257 RUI Modbus Control Loop Setup Loop Tru tune Gain unsigned 308 RUI Modbus Control Loop Operation Monitor Tune Status unsigned 263 Modbus only Current Sense Setup Current Current Detect Threshold unsigned 285 RUI Modbus Current Sense Operation Current Current Heater Error unsigned 282 RUI Modbus Current Sense Operation Current Current High Set Point IEEE Float 286 RUI Modbus Current Sense Setup Curr
77. Page Step 25 Hours unsigned 983 RUI Modbus Watlow EZ ZONE ST e 80 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 25 Jump Count unsigned 995 RUI Modbus Profile Management Profiling Page Step 25 Jump Step unsigned 994 RUI Modbus Profile Management Profiling Page Step 25 Minutes unsigned 984 RUI Modbus Profile Management Profiling Page Step 25 Rate IEEE Float 986 RUI Modbus Profile Management Profiling Page Step 25 Seconds unsigned 985 RUI Modbus Profile Management Profiling Page Step 25 Step Type unsigned 980 RUI Modbus Profile Management Profiling Page Step 25 Target Set Point IEEE Float 981 RUI Modbus Profile Management Profiling Page Step 25 Wait Event Event 1 unsigned 990 RUI Modbus Profile Management Profiling Page Step 25 Wait Event Event 2 unsigned 991 RUI Modbus Profile Management Profiling Page Step 25 Wait For Process IEEE Float 992 RUI Modbus Profile Management Profiling Page Step 26 End Type unsigned 1016 RUI Modbus Profile Management Profiling Page Step 26 Event Output 1 unsigned 1008 RUI Modbus Profile Management Profiling Page Step 26 Event Output 2 unsigned 1009 RUI Modbus Profile Management Profiling P
78. Parameter name Description Monitor Heat Power View the current heat output level Monitor Cool Power View the current cool output level Monitor Closed Loop Set Point View the set point currently in effect Monitor Process Value Active View the current filtered process value using the control input Monitor Alarm 1 State View the state of alarm 1 Monitor Alarm 2 State View the state of alarm 2 Monitor Ambient Temperature View the ambient temperature Monitor Bumpless Set Point View the set point that will take effect if a bumpless transfer occurs Monitor Control Loop Output Power View the output power Monitor Event 1 Status View the status of event 1 Monitor Event 2 Status View the status of event 2 Monitor Limit State View the limit state Monitor Ramp Set Point View the current ramp set point Set tings 0 0 to 100 0 100 0 to 0 0 1 999 000 to 9 999 000 F or units 1 128 000 to 5 537 000 C 1 999 000 to 9 999 000F or units 1 128 000 to 5 537 000 C Startup 88 None 61 Blocked 12 Alarm Low 8 Alarm High 7 Error 28 Startup 88 None 61 Blocked 12 Alarm Low 8 Alarm High 7 Error 28 1 999 000 to 9 999 000 1 999 000 to 9 999 000 1 999 000 to 9 999 000 Inactive 41 32 Active 5 Inactive 41 Active 5 Off 62 31 None 61 Limit High 51 Limit Low 52 Error 28 1 999 000 to 9 999 000 Note Some v
79. Place a 120 resistor across T R and T R of last controller on network dard Bus EIA 485 Communications Only one protocol per port is available at a time either Mod bus RTU or Standard Bus Do not connect more than 16 controllers on a Standard Bus network Do not connect more than 247 controllers on a Modbus RTU network maximum network length 1 200 meters 4 000 feet 1 8th unit load on EIA 485 bus ST __M_ Modbus RTU or EIA 485 Modbus IDA EIA TIA 485 Watlow Termi Function Terminal Name nal Label mo h wo s CA or CD T R Watlow EZ ZONE ST kd Chapter 2 Install and Wire HN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this controller to a power source and to elec trical sensors or peripheral devices Failure to do so may result in damage to equip ment and property and or injury or loss of life NOTE To prevent ground loops isolation needs to be maintained from input to out put when using switched DC or analog process outputs CAUTION Always mount the controller with the heat sink fins aligned vertically NOTE Terminals L4 and A1 on the limit connector are jumpered at the factory to complete the contactor circuit Additional switches may be wired in series to the terminals nN WARNING If high voltage is applied to a low voltage con troller irrever
80. Profile Management Profiling Page Step 29 Wait Event Event 1 unsigned 1070 RUI Modbus Profile Management Profiling Page Step 29 Wait Event Event 2 unsigned 1071 RUI Modbus Profile Management Profiling Page Step 29 Wait For Process IEEE Float 1072 RUI Modbus Profile Management Profiling Page Step 30 End Type unsigned 1096 RUI Modbus Profile Management Profiling Page Step 30 Event Output 1 unsigned 1088 RUI Modbus Profile Management Profiling Page Step 30 Event Output 2 unsigned 1089 RUI Modbus Profile Management Profiling Page Step 30 Hours unsigned 1083 RUI Modbus Profile Management Profiling Page Step 30 Jump Count unsigned 1095 RUI Modbus Profile Management Profiling Page Step 30 Jump Step unsigned 1094 RUI Modbus Profile Management Profiling Page Step 30 Minutes unsigned 1084 RUI Modbus Profile Management Profiling Page Step 30 Rate IEEE Float 1086 RUI Modbus Profile Management Profiling Page Step 30 Seconds unsigned 1085 RUI Modbus Profile Management Profiling Page Step 30 Step Type unsigned 1080 RUI Modbus Profile Management Profiling Page Step 30 Target Set Point IEEE Float 1081 RUI Modbus Profile Management Profiling Page Step 30 Wait Event Event 1 unsigned 1090 RUI Modbus Profile Management Profiling Page Step 30 Wait Event Event 2 unsigned 1091 RUI Modbus Profile Management Profiling Page Step 30 Wait For Process IEEE Float 1092 RUI Modbus Profile Management Profiling Page Step 31
81. Profiling Page Step 33 Jump Count unsigned 1155 RUI Modbus Profile Management Profiling Page Step 33 Jump Step unsigned 1154 RUI Modbus Profile Management Profiling Page Step 33 Minutes unsigned 1144 RUI Modbus Profile Management Profiling Page Step 33 Rate IEEE Float 1146 RUI Modbus Profile Management Profiling Page Step 33 Seconds unsigned 1145 RUI Modbus Profile Management Profiling Page Step 33 Step Type unsigned 1140 RUI Modbus Profile Management Profiling Page Step 33 Target Set Point IEEE Float 1141 RUI Modbus Profile Management Profiling Page Step 33 Wait Event Event 1 unsigned 1150 RUI Modbus Profile Management Profiling Page Step 33 Wait Event Event 2 unsigned 1151 RUI Modbus Profile Management Profiling Page Step 33 Wait For Process IEEE Float 1152 RUI Modbus Profile Management Profiling Page Step 34 End Type unsigned 1176 RUI Modbus Profile Management Profiling Page Step 34 Event Output 1 unsigned 1168 RUI Modbus Profile Management Profiling Page Step 34 Event Output 2 unsigned 1169 RUI Modbus Profile Management Profiling Page Step 34 Hours unsigned 1163 RUI Modbus Profile Management Profiling Page Step 34 Jump Count unsigned 1175 RUI Modbus Profile Management Profiling Page Step 34 Jump Step unsigned 1174 RUI Modbus Profile Management Profiling Page Step 34 Minutes unsigned 1164 RUI Modbus Profile Management Profiling Page Step 34 Rate IEEE Float 1166 RUI Modbus Profile Mana
82. Time or Soak Step Type is set to Time or Soak Step Type is set to Rate Step Type is set to Wait For Process Step Type is set to Wait Event or Wait for Both Step Type is set to Jump Loop Step Type is set to Jump Loop Step Type is set to End Step Type is set to Time Rate Soak Wait Event Wait for Pro cess Wait for Both or Jump Loop Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 7 Profiling Page Calculating the Modbus Address for a Step Each Step Type parameter has 40 Modbus addresses one for each of the 40 instances or steps To find a specific address subtract 1 from the instance and multiply the sum by 20 then add that to the Modbus address listed in the table above For instance the Modbus address for the Event Out put 2 parameter for Step 21 509 21 1 20 or 909 The table on the next page Modbus Registers for Pro filing Parameters lists all of the Modbus addresses for Step Type Parameters Time A Time Step controls at the Target Set Point and maintains two Event states for the designated time Rate A Rate Step ramps the process value to the Target Set Point in degrees per minute while maintaining two Event states Soak A Soak Step maintains the last Target Set Point and two Event states for the designated time Wait For Ev
83. UD is currently communi cating with to 9 zones 1 to 9 A zone 10 E zone 14 b zone 11 F zone 15 C zone 12 H zone 16 d zone 13 Lower Display Indicates the set point or out put power value during opera tion or the parameter whose value appears in the upper display EZ Key This key can be programmed to do various tasks such as starting a profile Infinity Key In the Home Page press to scroll through the net work zones In other prompts press to back up one level or press and hold for three seconds to return to the Home Page To Clear an Alarm If the alarm condition has ended from the Home Page press the Advance Key If there are any active mes sages will appear in the upper display and the alarm instance will appear in the lower display Use the Down Arrow Key Q to scroll through the mes sages and the Up Arrow Key O to clear the alarm Error and Alarm Messages HE En will appear in the lower display with the error message in the upper display Pm r lj Error Input 1 m r i Error Input 2 AL tj Alarm1 For alarm details query the AL ejAlarm 2 process value and alarm settings Temperature Units Indica tor Lights Indicates whether the tem perature is displayed in Fahr enheit or Celsius Output Activity Number lights indicate output activity Percent Units Indicator Lights when the controller is displaying valu
84. UI T R Modbus RTU B54 common Digital 1 0 common Digital 1 0 D6 Digital Input 6 or Output 6 Digital Input 6 or Output 6 Digital Input 5 or Output 5 D5 Digital Input 5 or Output 5 DY Watlow EZ ZONE ST NOTE The control common terminal and the digital common terminal are ref erenced to different voltages and must remain isolated e 8 o Chapter 2 Install and Wire contactor contact 5 current sensor T topin3 to pin 6 below below y LU SSR Re user supplied Internal wiring in an ST with a single pole contactor without a limit ST_B B_ O A Use single pole contactors for hot to neutral loads NEC does not permit neu tral to be switched Use double pole contactors for hot to hot loads Both hot legs must be opened to gether on limit conditions to remove power from circuit safety switch E output 4 internal relay normally open
85. UK Ltd Linby Industrial Estate Linby Nottingham NG15 8AA United Kingdom Telephone 0 115 964 0777 Fax 0 115 964 0071 Email info watlow co uk Website www watlow co uk From outside The United Kingdom Tel 44 115 964 0777 Fax 44 115 964 0071 Asia and Pacific Watlow Singapore Pte Ltd 16 Ayer Rajah Crescent 06 03 04 Singapore 139965 Tel 65 6773 9488 Fax 65 6778 0323 Email info watlow com sg Website www watlow com sg Watlow Australia Pty Ltd 4 57 Sharps Road Tullamarine VIC 3043 Australia Tel 61 3 9335 6449 Fax 61 3 9330 3566 Website www watlow com DLA ME FBR EE ABE i BBA Br LY EORR RT EK SH IL E Mb B CREER 155572722 AB 201203 FIG 86 21 5080 0902 4 amp E 86 21 5080 0906 af B8 info watlow cn Website www watlow cn Watlow Electric Manufacturing Shanghai Company 115 22 572nd Lane Bibo Road Zhangjiang High Tech Park Shanghai PRC 201203 People s Republic of China Tel 86 21 5080 0902 Email info watlow cn 7hH Zv NZAMX AG T 101 0047 5x88 EH IX P8 EH 1 14 4 FE E JL Bl Sg 9 Pe Tel 03 3518 6630 Email infoj watlow com Fax 86 21 5080 0906 Website www watlow cn Fax 03 3518 6632 Website www watlow co jp Watlow Japan Ltd 1 14 4 Uchikanda Chiyoda Ku Tokyo 101 0047 Japan Tel 81 3 3518 6630 Email infoj watlow com Fax 81 3 3518 6632 Website www watlow co jp Revised September 20 2007 Watlow Korea Co Ltd
86. ac 10 15 percent 85 to 264V ac 50 60 Hz 5 percent 6VA maximum 24Vx ac dc 10 15 percent 50 60 Hz 5 percent Weight 99 8 g 0 22 1b Dry contact Note These specifications are subject to change without prior Maximum short circuit 13 mA notice Minimum open resistance 500 Q Maximum closed resistance 100 0 Watlow EZ ZONE ST e 06 o Appendix Ordering Information Ordering Information for EZ ZONE ST Accessory Kit Code Number EZK Remote User Interface RUI A None B Basic 1 16 DIN Power Supply Voltage for Remote User Interface RUI A None if no RUI is being ordered L Low voltage 24 to 28V ac dc H Universal high voltage 100 to 240Vx ac dc For Future Use A None Custom Remote User Interface RUI AA None XX Custom options consult factory For Future Use A None Central Communication Module A None PC Based Software AA None NOTE Configurator PC software can be downloaded for free from the Watlow website www watlow com Ordering Information for EZ ZONE ST Replacement Base Code Number S T RT B A S E Series ST Replacement Base Integrated Mechanical Controller 0000 Compact base version no space for mechanical contactor DPB1 Base housing with single pole 40 A Watlow contactor 24V ac power supply DPB2 Base housing with single pole 40 A Watlow contactor 110 120V ac power supply DPB3 Base housing with single pole 40 A Watlow contactor 208 240V
87. age Step 26 Hours unsigned 1003 RUI Modbus Profile Management Profiling Page Step 26 Jump Count unsigned 1015 RUI Modbus Profile Management Profiling Page Step 26 Jump Step unsigned 1014 RUI Modbus Profile Management Profiling Page Step 26 Minutes unsigned 1004 RUI Modbus Profile Management Profiling Page Step 26 Rate IEEE Float 1006 RUI Modbus Profile Management Profiling Page Step 26 Seconds unsigned 1005 RUI Modbus Profile Management Profiling Page Step 26 Step Type unsigned 1000 RUI Modbus Profile Management Profiling Page Step 26 Target Set Point IEEE Float 1001 RUI Modbus Profile Management Profiling Page Step 26 Wait Event Event 1 unsigned 1010 RUI Modbus Profile Management Profiling Page Step 26 Wait Event Event 2 unsigned 1011 RUI Modbus Profile Management Profiling Page Step 26 Wait For Process IEEE Float 1012 RUI Modbus Profile Management Profiling Page Step 27 End Type unsigned 1036 RUI Modbus Profile Management Profiling Page Step 27 Event Output 1 unsigned 1028 RUI Modbus Profile Management Profiling Page Step 27 Event Output 2 unsigned 1029 RUI Modbus Profile Management Profiling Page Step 27 Hours unsigned 1023 RUI Modbus Profile Management Profiling Page Step 27 Jump Count unsigned 1035 RUI Modbus Profile Management Profiling Page Step 27 Jump Step unsigned 1034 RUI Modbus Profile Management Profiling Page Step 27 Minutes unsigned 1024 RUI Modbus Profile Management Profi
88. ain value by dividing the low source signal by this value 9 Set Electrical Slope Factory Page Cali bration Menu for this input to the calculated gain value 10 Check the Electrical Measurement to see wheth er it now matches the signal If it doesn t match adjust Electrical Slope again Set Electrical Offset to 0 and Electrical Slope to 1 to restore factory calibration Watlow EZ ZONE ST e 59 E Chapter 9 Features Filter Time Constant Filtering smoothes an input signal by applying a first order filter time constant to the signal Filtering the displayed value makes it easier to monitor Filtering the signal may improve the performance of PID con trol in a noisy or very dynamic system Adjust the filter time interval with Filter Time Setup Page Analog Input Menu Example With a filter value of 0 5 seconds if the process input value instantly changes from 0 to 100 and remained at 100 the display will indicate 100 after five time constants of the filter value or 2 5 seconds Unfiltered Input Signal Temperature Time Filtered Input Signal Temperature Time Sensor Selection You need to configure the controller to match the in put device which is normally a thermocouple RTD or process transmitter Select the sensor type with Sensor Type Setup Page Analog Input Menu Sensor Backup Sensor backup maintains closed loop control after an input failure by switching contr
89. ait For Process IEEE Float 692 RUI Modbus Watlow EZ ZONE ST e 76 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 11 End Type unsigned 716 RUI Modbus Profile Management Profiling Page Step 11 Event Output 1 unsigned 708 RUI Modbus Profile Management Profiling Page Step 11 Event Output 2 unsigned 709 RUI Modbus Profile Management Profiling Page Step 11 Hours unsigned 703 RUI Modbus Profile Management Profiling Page Step 11 Jump Count unsigned 715 RUI Modbus Profile Management Profiling Page Step 11 Jump Step unsigned 714 RUI Modbus Profile Management Profiling Page Step 11 Minutes unsigned 704 RUI Modbus Profile Management Profiling Page Step 11 Rate IEEE Float 706 RUI Modbus Profile Management Profiling Page Step 11 Seconds unsigned 705 RUI Modbus Profile Management Profiling Page Step 11 Step Type unsigned 700 RUI Modbus Profile Management Profiling Page Step 11 Target Set Point IEEE Float 701 RUI Modbus Profile Management Profiling Page Step 11 Wait Event Event 1 unsigned 710 RUI Modbus Profile Management Profiling Page Step 11 Wait Event Event 2 unsigned 711 RUI Modbus Profile Management Profiling Page Step 11 Wait
90. al 1 0 Setup Digital 1 0 Digital I O 6 Direction unsigned 182 RUI Modbus Digital 1 0 Setup Digital I O Digital Output 5 Function unsigned 173 RUI Modbus Digital 1 0 Setup Digital I O Digital Output 5 Function Instance unsigned 174 Modbus only Digital 1 0 Operation Digital I O Digital Output 5 State unsigned 175 RUI Modbus Digital 1 0 Setup Digital I O Digital Output 6 Function unsigned 186 RUI Modbus Digital 1 0 Setup Digital I O Digital Output 6 Function Instance unsigned 187 Modbus only Digital 1 0 Operation Digital 1 0 Digital Output 6 State unsigned 188 RUI Modbus Digital 1 0 Setup Output Output 1 Control unsigned 131 RUI Modbus Digital 1 0 Setup Output Output 1 Function unsigned 134 RUI Modbus Digital 1 0 Setup Output Output 1 Function Instance unsigned 135 RUI Modbus Digital 1 0 Setup Output Output 1 High Power Scale IEEE Float 141 RUI Modbus Digital 1 0 Setup Output Output 1 Low Power Scale IEEE Float 139 RUI Modbus Digital 1 0 Setup Output Output 1 Time Base IEEE Float 132 RUI Modbus Digital 1 0 Setup Output Output 2 Control unsigned 144 RUI Modbus Digital 1 0 Setup Output Output 2 Function unsigned 147 RUI Modbus Digital 1 0 Setup Output Output 2 Function Instance unsigned 148 RUI Modbus Digital 1 0 Setup Output Output 2 High Power Scale IEEE Float 154 RUI Modbus Digital 1 0 Setup Output Output 2 Low Power Scale IEEE Float 152 RUI Modbus Digital 1 0 Setup Output Output 2 Time
91. alues will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F less 40 001 offset 236 float read only 242 float read only 75 F or units 24 C 19 float read only 29 1 unsigned read only 30 2 unsigned read only 34 float read only 209 float read only read only Modbus read write Modbus only Modbus only Modbus only Modbus only Modbus only Modbus only Modbus only unsigned read only 217 float read only unsigned Modbus only Modbus only Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 5 Operations Page Parameter name Description Display Monitor Tune Status View which step the tuning process is in Loop Control Mode Select the method that the controller will use to control Loop Autotune Set Point Set the set point that the autotune will use as a percentage of the cur rent set point Loop Autotune Request Start an autotune While autotune is active the Home Page will display AEEn EUn I When the autotune is complete the message will clear automatically Loop Closed Loop Set Point Set the set point that the controller will automatically control to Loop Idle Set Point Set a set point that can be
92. ameters C P to C Aleo L heo Y C SPoo S tje A N gt C SEnle L na gt C cELIe SLole Sh gt eLole ch 10 gt F LIe9 cje dECIe SbRIe Hold both keys Analog Input Input 1 Sensor Type Linearization RTD Leads ScaleLow Scale High RangeLow Range High Filter Input Error Decimal Sensor for 6 seconds Menu Submenu Backup ort on Enable vo vo Input 2 R Submenu Same as above without sensor backup enable soko ke v Navigating the Setup Page SEEJe d ol 2 dr ofn o d LIe dFale2 F50 Digital In Out5 Direction Output Output Digital Input Digital Input Input Input Output Submenu Function Function Level Function Function Menu on Instance Instance on vo vo In Out 6 R Submenu Same as above Rell Peo v g _ SEE gt L5dle Lh L bo Limit Menu Limit Sides Limit Limit Q Hysteresis Integrate vo noL oof v 2 E E y E E 2 p EE SEtje kRHgie CRgle iEEUnleS Eband e ESale iERg e FR LOTA Plo eSCIe9 ectjeo LSPIe hSPle SPLole SPh Je Loop Menu Heat Cool TRU TRU TRU Autotune Input Error Manual Ramp Action Ramp Scale Ramp Rate Closed Loop Closed Loop Open Loop Open Loop on Algorithm Algorithm TUNE TUNE TUNE Aggressive Failure Power Low Set High Set Low Set High Set Yo Enable Band Gain ness Point Point Point Point SOe otPEKeo ico v F E F ot SEL gt ot PEO gt of nj gt _of 0 gt olt ot b gt ol cl gt _oh e Output Menu Ou
93. anagement Profiling Page Step 28 Wait Event Event 1 unsigned 1050 RUI Modbus Watlow EZ ZONE ST e 81 e Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 28 Wait Event Event 2 unsigned 1051 RUI Modbus Profile Management Profiling Page Step 28 Wait For Process IEEE Float 1052 RUI Modbus Profile Management Profiling Page Step 29 End Type unsigned 1076 RUI Modbus Profile Management Profiling Page Step 29 Event Output 1 unsigned 1068 RUI Modbus Profile Management Profiling Page Step 29 Event Output 2 unsigned 1069 RUI Modbus Profile Management Profiling Page Step 29 Hours unsigned 1063 RUI Modbus Profile Management Profiling Page Step 29 Jump Count unsigned 1075 RUI Modbus Profile Management Profiling Page Step 29 Jump Step unsigned 1074 RUI Modbus Profile Management Profiling Page Step 29 Minutes unsigned 1064 RUI Modbus Profile Management Profiling Page Step 29 Rate IEEE Float 1066 RUI Modbus Profile Management Profiling Page Step 29 Seconds unsigned 1065 RUI Modbus Profile Management Profiling Page Step 29 Step Type unsigned 1060 RUI Modbus Profile Management Profiling Page Step 29 Target Set Point IEEE Float 1061 RUI Modbus
94. anagement Profiling Page Step 7 Jump Step unsigned 634 RUI Modbus Watlow EZ ZONE ST e 75 e Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 7 Minutes unsigned 624 RUI Modbus Profile Management Profiling Page Step 7 Rate IEEE Float 626 RUI Modbus Profile Management Profiling Page Step 7 Seconds unsigned 625 RUI Modbus Profile Management Profiling Page Step 7 Step Type unsigned 620 RUI Modbus Profile Management Profiling Page Step 7 Target Set Point IEEE Float 621 RUI Modbus Profile Management Profiling Page Step 7 Wait Event Event 1 unsigned 630 RUI Modbus Profile Management Profiling Page Step 7 Wait Event Event 2 unsigned 631 RUI Modbus Profile Management Profiling Page Step 7 Wait For Process IEEE Float 632 RUI Modbus Profile Management Profiling Page Step 8 End Type unsigned 656 RUI Modbus Profile Management Profiling Page Step 8 Event Output 1 unsigned 648 RUI Modbus Profile Management Profiling Page Step 8 Event Output 2 unsigned 649 RUI Modbus Profile Management Profiling Page Step 8 Hours unsigned 643 RUI Modbus Profile Management Profiling Page Step 8 Jump Count unsigned 655 RUI Modbus Profile Management Profiling
95. ance 43 Type 42 Alarm 1 State 32 Alarm 2 State 32 alarm blocking 65 Alarm Menu 34 42 Ambient Temperature 32 analog input 3 Analog Input Menu 31 38 Autotune 28 Autotune Aggressiveness 41 Autotune Request 33 Autotune Set Point 33 autotuning 57 58 auto closed loop control 61 Baud 21 Blocking 43 65 Bumpless Set Point 32 bumpless transfer 61 C calibrating an analog input 59 Calibration Menu 55 Calibration Offset 31 59 60 chattering output 61 Clear Request 31 34 Closed Loop Active Set Point 41 Closed Loop High Set Point 41 60 Closed Loop Low Set Point 41 60 Closed Loop Set Point 32 33 Communications LED Assignment 25 Communications Menu 24 conceptual view 3 Configurator 26 Control 42 Control Loop Menu 40 Control Loop Output Power 32 control methods 60 Control Mode 28 33 61 Control Mode Active 31 Cool Algorithm 40 62 Cool Hysteresis 34 62 Cool Power 28 32 58 Cool Proportional Band 33 57 62 Current Error 23 65 Current Menu 35 43 current sensing 65 Custom Menu 28 54 57 D Date of Manufacture 24 55 Dead Band 34 63 Decimal 38 Declaration of Conformity 94 default Home Page parameters 28 Detect Threshold 44 deviation alarms 64 Device Error 23 Diagnostics Menu 24 55 digital input 3 Digital Input Output Menu 31 39 Digital Input Function 44 Direction 39 Display 43 displays 23 Display Units 44 Down Key 23 E Electrical Measurement 55 59 Electrical
96. arm set points automatically moves with it Select the alarm type with Type Setup Page Alarm Menu Alarm Set Points The alarm high set point defines the process value or temperature that will trigger a high side alarm It must be higher than the alarm low set point and lower than the high limit of the sensor range The alarm low set point defines the temperature that will trigger a low side alarm It must be lower than the alarm high set point and higher than the low limit of the sensor range View or change alarm set points with Low Set Point and High Set Point Operations Page Alarm Menu Alarm Hysteresis An alarm state is triggered when the process value reaches the alarm high or alarm low set point Alarm hysteresis defines how far the process must return into the normal operating range before the alarm can be cleared Alarm hysteresis is a zone inside each alarm set point This zone is defined by adding the hysteresis value to the alarm low set point or subtracting the hysteresis value from the alarm high set point View or change alarm hysteresis with Hysteresis Setup Page Alarm Menu n Gls OSE Eran RE Alarm High Set Point Alarm Hysteresis Normal Operating Range Temperature 4 Alarm Hysteresis Alarm Low Set Point Low Side Alarm Range Time Alarm Latching A latched alarm will remain active after the alarm condition has passed It can only be deactivated by the user An acti
97. as either an input or output with the Direction parameter in the Digital Input Output Menu Setup Page The Function or EZ Key on the front panel also operates as a digital input by toggling the function as signed to it in the Digital Input Function parameter in the Function Key Menu Setup Page Functions Functions use input signals to calculate a value A function may be as simple as reading a digital input to set a state to true or false or reading a temperature to set an alarm state to on or off Or it could compare the temperature of a process to the set point and calculate the optimal power for a heater To set up a function it s important to tell it what source or instance to use For example an alarm may be set to respond to either analog input 1 or 2 in stance 1 or 2 respectively Keep in mind that a function is a user programmed internal process that does not execute any action out side of the controller To have any effect outside of the controller an output must be configured to respond to a function Outputs Outputs can perform various functions or actions in response to information provided by a function such as operating a heater turning a light on or off unlock ing a door or turning on a buzzer Assign an output to a Function in the Output Menu or Digital Input Output Menu Then select which instance of that function will drive the selected output For example you might assign an output to
98. bus in parentheses 11 to 20 profile 2 21 to 30 profile 3 31 to 40 profile 4 1 999 000 to 9 999 000 F or units 1 128 to 5 537 000 C How to Start a Profile After defining the profile follow the steps below to run the profile 1 From the Home Page push the Advance Key re peatedly until Profile Start appears in the lower display Use the Up or Down Q key to choose the file or step number within a profile where you want the profile to begin running Press the Advance Key This takes you to Pro file Action PAC I where you can select the ap propriate action Inon No action Pr of Begin execution from first step of the specified profile number whether it exists or not Pause the currently running profile Resume running the profile from the pre paused step Eng End the profile St EP Begin running the profile from the speci fied step number Modbus less 40 001 offset read write Range Default Appears If TI E TE 2 296 unsigned rw profile 1 Unused Step Unused Time Rate Soak Wait For Event Wait For Process Wait For Both Jump Loop End 500 unsigned rw always address 500 in stance 1 20 Step Type is set to Time Rate Wait for Process or Wait for Both 501 unsigned rw address 501 in stance 1 20 Note Some values will be rounded off to fit in the four character display Full values can be read with a
99. ch the unit the module 3 With a Phillips screwdriver remove 4 Lift the controller body exposing 5 Using a Phillips screwdriver remove the two screws at the top corners of the the solid state relay the two screws connecting the solid controller state relay to the heat sink Replacing the Solid state Relay 1 Using a Phillips screwdriver replace the two screws connecting the solid state relay to the heat sink Check that the bottom of the solid state relay is on the left 2 Place the controller body over the solid state relay and using a Phillips screwdriver replace the six screw se NOTE For controller models with a contactor ST A _ curing it ___ the solid state relay must be mounted with the larger power 3 Snap the control module in place terminals on the right and the smaller control terminals on the left edge first left Watlow EZ ZONE ST e 13 e Chapter 2 Install and Wire HN Warning Use National Electric NEC or other country specific standard wiring and safety practices when wiring and connecting this controller to a power source and to elec trical sensors or peripheral devices Failure to do so may result in damage to equip ment and property and or injury or loss of life NOTE To prevent ground loops isolation needs to be maintained from input to out put when using switched DC or analog process outputs CAUTION Always mount the controller with the heat sink fins align
100. changes will not be al If unintentional changes to parameter settings might m ma bead Stat as ay a c raise safety concerns or lead to downtime your can rae ee REPE Gee co higher level use the lockout feature to make them more secure m ius d all th aan Each of the menus in the Factory Page and each i T ee D D kir EE allow any parameters to be changed of the pages except the Factory Page has a security level assigned to it You can change the read and write In the Factory Page Lockout Menu set Read access to these menus and pages by using the param Lockout Security to 5 and Set Lockout Se eters in the Lockout Menu Factory Page curity to 0 4 The operator wants to read and write to the Home Lockout Menu Pica and Profiling Page and lock all other pages There are four parameters in the Lockout Menu Fac T tory Page In the Factory Page Lockout Menu set Read Lock out Security to 2 and Set Lockout Security Lock Operations Page sets the security level SLot to 2 for the Operations Page default 2 In the Factory Page Lockout Menu set Lock Op Lock Profiling Page sets the security level erations Page to 3 and Lock Profiling Page for the Profiling Page default 3 io2 Read Lockout Security determines which 5 The operator wants to read the Operations Page pages can be accessed The user can access the se Setup Page Profiling Page Diagnostics Menu lected level and all lower levels default 5 Leek M n Calibra
101. d 660 RUI Modbus Profile Management Profiling Page Step 9 Target Set Point IEEE Float 661 RUI Modbus Profile Management Profiling Page Step 9 Wait Event Event 1 unsigned 670 RUI Modbus Profile Management Profiling Page Step 9 Wait Event Event 2 unsigned 671 RUI Modbus Profile Management Profiling Page Step 9 Wait For Process IEEE Float 672 RUI Modbus Profile Management Profiling Page Step 10 End Type unsigned 696 RUI Modbus Profile Management Profiling Page Step 10 Event Output 1 unsigned 688 RUI Modbus Profile Management Profiling Page Step 10 Event Output 2 unsigned 689 RUI Modbus Profile Management Profiling Page Step 10 Hours unsigned 683 RUI Modbus Profile Management Profiling Page Step 10 Jump Count unsigned 695 RUI Modbus Profile Management Profiling Page Step 10 Jump Step unsigned 694 RUI Modbus Profile Management Profiling Page Step 10 Minutes unsigned 684 RUI Modbus Profile Management Profiling Page Step 10 Rate IEEE Float 686 RUI Modbus Profile Management Profiling Page Step 10 Seconds unsigned 685 RUI Modbus Profile Management Profiling Page Step 10 Step Type unsigned 680 RUI Modbus Profile Management Profiling Page Step 10 Target Set Point IEEE Float 681 RUI Modbus Profile Management Profiling Page Step 10 Wait Event Event 1 unsigned 690 RUI Modbus Profile Management Profiling Page Step 10 Wait Event Event 2 unsigned 691 RUI Modbus Profile Management Profiling Page Step 10 W
102. d by a three year warranty 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 guar antee against failure Watlow s obligations hereunder at Watlow s option are limited to replacement repair or refund of purchase price and parts which upon exami nation prove to be defective within the warranty period specified This warranty does not apply to damage result ing from transportation alteration misuse or abuse The purchaser must use Watlow parts to maintain all listed ratings Technical Assistance If you encounter a problem with your Watlow control ler review your configuration information to verify that your selections are consistent with your applica tion inputs outputs alarms limits etc If the prob lem persists you can get technical assistance from your local Watlow representative see back cover by e mailing your questions to wintechsupport watlow com or by dialing 1 507 494 5656 between 7 a m and 5 p m Central Standard Time CST Ask for for an Applications Engineer Please have the following information available when calling Complete model number All configuration information User s Manual Factory Page Warranty The EZ ZONE ST is manufactured by ISO 9001 registered processes and is backed by a three year warranty to the first purchaser for use providing that the units have
103. e Pro Process 75 rw includes profiling Set the profile startup to be based on a set point or a process value Global Off 62 299 unsigned the controller Guaranteed Soak Enable C on On 63 rw includes profiling Enables the guaranteed soak devia tion function in profiles Global 0 0 to 9 999 000 F or units 300 float the controller Guaranteed Soak Deviation 0 0 to 5 555 000 C rw includes profiling Set the value of the deviation band that will be used in all profile step types The process value must enter the deviation band before the step can proceed Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 45 e Chapter 6 Setup Page Chapter 7 Profiling Page Home Profile Navigating the Profiling Page Page Page Steps Step Types C Pjee Peo o 1 amp 0 v SPje Profe Pi e EESTI E E9SPje hoUrcje P1 n 2 SECO Ent Ile Ente a Hold key for3 Profile 1 on Time Target Set Hours Minutes Seconds Event Event seconds Q vo o Point Output 1 Output 2 Vo Steps 1 to 10 vo Profile 1 se Peo ih c Ht EC o V Pr oFje P SE YPIO gt E
104. e 40 A Watlow contactor 110 120V ac power supply F3 Dual pole 40 A Watlow contactor 208 240V ac power supply Communications A Standard software to connect to pc software remote user interface RUI and other EZ ZONE STs M Modbus RTU communication port to connect to non ST products Solid State Relay B 10 A 24 to 240V ac output C 25 A 24 to 240V ac output D 40 A 24 to 240V ac output E 50 A 24 to 240V ac output F 90A 48 to 240V ac output G 25 A 24 to 600V ac output H 40 A 48 to 600V ac output J 90A 24 to 600V ac output EZ ZONE ST only rated for maximum 40 A Heat Sinks A None no DIN rail mount B 25 A See Derating Curves in the Declaration of Conformity C 40 A See Derating Curves in the Declaration of Conformity Firmware A Standard Watlow P Profile ramp and soak 4 profiles 40 steps S Custom Customization logo parameters hardware firmware AA Standard XX lletters to be determined consult factory Watlow EZ ZONE ST e 89 o Appendix Index Prompt Index Alarm Blocking 43 65 AC Line Frequency 44 63 Active Set Point 36 RUI Address 24 Alarm Display 43 Alarm High Set Point 34 64 Alarm Hysteresis 43 64 Analog Input Menu 31 38 Alarm Source Instance 43 Alarm 1 29 Alarm Error 68 Alarm 2 29 Alarm Error 68 Alarm Latching 48 65 Alarm Logic 43 Alarm Menu 34 42 Alarm Low Set Point 34 64 Alarm Sides 43 Alarm Silencing 43
105. e Management Profiling Page Step 40 Jump Step unsigned 1294 RUI Modbus Profile Management Profiling Page Step 40 Minutes unsigned 1284 RUI Modbus Profile Management Profiling Page Step 40 Rate IEEE Float 1286 RUI Modbus Profile Management Profiling Page Step 40 Seconds unsigned 1285 RUI Modbus Profile Management Profiling Page Step 40 Step Type unsigned 1280 RUI Modbus Profile Management Profiling Page Step 40 Target Set Point IEEE Float 1281 RUI Modbus Profile Management Profiling Page Step 40 Wait Event Event 2 unsigned 1291 RUI Modbus Profile Management Profiling Page Step 40 Wait Event Event 40 unsigned 1290 RUI Modbus Profile Management Profiling Page Step 40 Wait For Process IEEE Float 1292 RUI Modbus Set Point Manager Operation Monitor Bumpless Set Point IEEE Float 209 Modbus only Set Point Manager Setup Loop Closed Loop Active Set Point IEEE Float 203 Modbus only Set Point Manager Home Page Closed Loop Set point IEEE Float 2l RUI Modbus Set Point Manager Setup Loop Loop Input Error Failure unsigned 214 RUI Modbus Set Point Manager Setup Loop Loop Manual Power IEEE Float 211 RUI Modbus Set Point Manager Setup Loop Closed Loop High Set Point IEEE Float 197 RUI Modbus Set Point Manager Setup Loop Closed Loop Low Set Point IEEE Float 195 RUI Modbus Set Point Manager Operation Loop Idle Set Point IEEE Float 207 RUI Modbus Set Point Manager Setup Loop Open Loop Active Set Point IEEE Float 205 M
106. ead Band 34 63 Decimal 38 Device Error 23 29 Digital Input Function 39 44 Diagnostics Menu 24 55 Digital Input Level 39 Digital Input Output Menu Direction 39 Output State 31 Event Status 31 Electrical Offset 55 59 Electrical Slope 55 59 End 47 49 End Type 48 Event Output 1 36 48 Event Output 2 36 48 Error Input 2 23 29 68 Error Input 1 23 29 68 Input Error Failure 41 61 Filter 38 Digital Input Function In stance 40 Function Key Instance 44 Function Key Menu 44 Global Menu 44 Guaranteed Soak Deviation 45 9S Guaranteed Soak Enable 4 5 Heat Algorithm 40 61 Heater Error 23 29 35 65 o Heat Hysteresis 33 62 Hours 48 Heat Proportional Band 33 7 62 Heat Power 32 58 Heat Power 28 Closed Loop High Set Point Calibration Offset 31 59 60 Idle Set Point 33 Idle Set Point 28 Input Error 31 38 Instance 54 Jump Count 48 P4 n o n o 3 n o 3 gt 9 1 7o o0 9 1 rr D rr o o C Jump Count Remaining 36 Jump Loop 47 49 Jump Step 48 JL J5 L h 5 Limit High Set Point 31 l thy Limit Hysteresis 40 L n Limit 23 29 L PN Limit Error 68 L P l Limit Menu 31 40 L inj Linearization 38 Limit Integrate 40 L bork L L S Lim
107. ed 920 RUI Modbus Profile Management Profiling Page Step 22 Target Set Point IEEE Float 921 RUI Modbus Profile Management Profiling Page Step 22 Wait Event Event 1 unsigned 930 RUI Modbus Profile Management Profiling Page Step 22 Wait Event Event 2 unsigned 931 RUI Modbus Profile Management Profiling Page Step 22 Wait For Process IEEE Float 932 RUI Modbus Profile Management Profiling Page Step 23 End Type unsigned 956 RUI Modbus Profile Management Profiling Page Step 23 Event Output 1 unsigned 948 RUI Modbus Profile Management Profiling Page Step 23 Event Output 2 unsigned 949 RUI Modbus Profile Management Profiling Page Step 23 Hours unsigned 943 RUI Modbus Profile Management Profiling Page Step 23 Jump Count unsigned 955 RUI Modbus Profile Management Profiling Page Step 23 Jump Step unsigned 954 RUI Modbus Profile Management Profiling Page Step 23 Minutes unsigned 944 RUI Modbus Profile Management Profiling Page Step 23 Rate IEEE Float 946 RUI Modbus Profile Management Profiling Page Step 23 Seconds unsigned 945 RUI Modbus Profile Management Profiling Page Step 23 Step Type unsigned 940 RUI Modbus Profile Management Profiling Page Step 23 Target Set Point IEEE Float 941 RUI Modbus Profile Management Profiling Page Step 23 Wait Event Event 1 unsigned 950 RUI Modbus Profile Management Profiling Page Step 23 Wait Event Event 2 unsigned 951 RUI Modbus Profile Management Profiling Page Step 2
108. ed off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 55 o Chapter 8 Factory Page Chapter 9 Features Saving and Restoring User Settings 0000 e ee euee 57 Programming the Home Page 0 cece eee ee eee 57 Tuning the PID Parameters 0 00 cece eee ees 57 Manual TUNING 5 nehm ene nee eal 57 General Use of TRU TUNE 0 cee eee 58 ll mec cater ene s bine e eS eeu ewitinds dda A 59 Calibration OffSaL d pide ee Seded med 59 erocup eT 59 Filter Time Constant ei vonni cc cece cette RI 60 Sensor Selection 0c cece cece nn 60 Sensor BACKUP TEE Cm 60 Low Set Point and High Set Point 0 0 0 cece eee 60 Scale High and Scale Low 0 ccc cece eee ee eee 60 Range High and Range Low 0 cece eee eee eens 60 Output CONTQUIATION 2er eme rer anane i kin 60 Auto closed loop and Manual open loop Control 61 ONO CONTO CC 61 Proportional Control eccere 0 ccc tener aneka aiia naie aa 62 Proportional plus Integral PI Control 2 000000 62 Proportional plus Integral plus Derivative PID Control 62 Dead Band iusseresebuus PRSE Gnas S saws Genes Cb pe RES 63
109. ed vertically NOTE Terminals L4 and A1 on the limit connector are jumpered at the factory to complete the contactor circuit Additional switches may be wired in series to the terminals nN WARNING If high voltage is applied to a low voltage con troller irreversible damage will occur Power Slot C 98 CN 99 power Digital Input or Output 5 Digital Input update rate 10 Hz dry contact or dc voltage DC voltage maximum input 36V at 3 mA e minimum high state 3V 0 25 mA maximum low state 2V Slot C commons Dry contact Bo e minimum open resistance 500 Q e maximum closed resistance 100 Q D5 input or output e maximum short circuit 13 mA Digital Output update rate 10 Hz output voltage 24V current limit Output 5 24 mA maximum capable of driving a 3 pole DIN A MITE open circuit voltage 22 to 32V de ST B C DorE Digital Input or Output 6 Slot C Digital Input update rate 10 Hz dry contact or dc voltage DC voltage maximum input 36V at 3 mA minimum high state 3V 9 0 25 mA maximum low state 2V Dry contact e minimum open resistance 500 Q input or output i 2 D6r e maximum closed resistance 100 Q maximum short circuit 13 mA common BS
110. eded the PID coefficients will not be set to correct autotuned values and the original PID val ues will be restored The autotune process will need to be restarted or the control will need to be tuned manually 1 Apply power to the controller and check that the set point is appropriate for autotuning If it isn t set an Autotune Set Point 2 Begin the autune from the Home Page or the Loop Menu Operations Page 3 Allow the autotuning to process to continue until E Un E stops flashing in the upper display Process Set Point 4 Autotune begins Autotune complete A Autotune Set Point 90 percent of Process Set Point Temperature Time Manual Tuning In some applications the autotune process may not provide PID parameters for the process characteristics you desire If that is the case you may want to tune the controller manually 1 Apply power to the controller and establish a set point typically used in your process 2 Go to the Operations Page Loop Menu and set Heat Proportional Band and or Cool Pro portional Band to 5 Set Time Integral to 0 Set Time Derivative to 0 Watlow EZ ZONE ST e 57 Chapter 9 Features 3 When the system stabilizes watch the process val ue If it fluctuates increase the Heat Proportional Band or Cool Proportional Band value in 3 to 5 increments until it stabilizes allowing time for the system to settle between adjustments 4 When the process ha
111. ement Profiling Page Step 39 Jump Step unsigned 1274 RUI Modbus Profile Management Profiling Page Step 39 Minutes unsigned 1264 RUI Modbus Profile Management Profiling Page Step 39 Rate IEEE Float 1266 RUI Modbus Watlow EZ ZONE ST e 84 e Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 39 Seconds unsigned 1265 RUI Modbus Profile Management Profiling Page Step 39 Step Type unsigned 1260 RUI Modbus Profile Management Profiling Page Step 39 Target Set Point IEEE Float 1261 RUI Modbus Profile Management Profiling Page Step 39 Wait Event Event 1 unsigned 1270 RUI Modbus Profile Management Profiling Page Step 39 Wait Event Event 2 unsigned 1271 RUI Modbus Profile Management Profiling Page Step 39 Wait For Process IEEE Float 1272 RUI Modbus Profile Management Profiling Page Step 40 End Type unsigned 1296 RUI Modbus Profile Management Profiling Page Step 40 Event Output 2 unsigned 1289 RUI Modbus Profile Management Profiling Page Step 40 Event Output 40 unsigned 1288 RUI Modbus Profile Management Profiling Page Step 40 Hours unsigned 1283 RUI Modbus Profile Management Profiling Page Step 40 Jump Count unsigned 1295 RUI Modbus Profil
112. ent A Wait Event Step will wait for the event states to match the two Wait Event settings Wait For Process If Wait for Process Enable is on a Wait for Process Step will wait for the process value to match the Wait for Process value Wait For Both If Wait for Process Enable is on a Wait for Both Step will wait for the pro cess value to match the Target Set Point and for the event states to match the two Event settings Jump Loop A Jump Loop step will jump to the Jump Step the number of times desig nated in Jump Count Loops can be nested up to four deep End An End Step will end the profile If a profile doesn t include an End Step control will move to the next step If no End Step is confronted after step 40 control will default to the set point in effect before the profile started Unused Step This is an empty step that can be used to in effect erase a step in a pro file Display Step Type name Parameters in Step Type Description E 8 5 PJ Target Set Point Hours Minutes Seconds Event Output 1 Event Output 2 Target Set Point Rate Event Output 1 Event Output 2 Hours Minutes Seconds Event Output 1 Event Output 2 Wait Event 1 Wait Event 2 Event Output 1 Ent 9 Event Output 2 Wait For Process Event Output 1 Event Output 2 Wait for Process Value Wait Event 1 Wait Event 2 Event Output 1 Event Output 2 Jump Step Jump Count Event Output 1 Event Output 2 Watlow EZ ZONE
113. ent Current Limit Enable unsigned 284 RUI Modbus Current Sense Operation Current Current Low Set Point IEEE Float 288 RUI Modbus Current Sense Setup Current Current Sides unsigned 283 RUI Modbus Device Factory Diagnostics Status Light unsigned 18 Modbus only Device Factory Diagnostics Custom unsigned 10 RUI Modbus Device Factory Diagnostics Date of Manufacture unsigned 14 RUI Modbus Watlow EZ ZONE ST e 72 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Device Factory Diagnostics Hardware ID unsigned 0 Modbus only Device Factory Diagnostics Serial Number unsigned 12 RUI Modbus Device Factory Diagnostics Software Build unsigned 8 RUI Modbus Device Factory Diagnostics Software ID unsigned 2 RUI Modbus Device Factory Diagnostics Software Prototype Version unsigned 6 RUI Modbus Device Factory Diagnostics Software Release Version unsigned 4 RUI Modbus Device Factory Diagnostics User Restore Set unsigned 16 RUI Modbus Device Factory Diagnostics User Save Set unsigned 17 RUI Modbus Digital 1 0 Setup Global AC Line Frequency unsigned 129 RUI Modbus Digital 1 0 Setup Digital I O Digital I O 5 Direction unsigned 169 RUI Modbus Digit
114. er 5 Operations Page llli 30 Navigating the Operations Page 30 Chapter 6 Setup Page 0 ccc eee 37 Navigating the Setup Page 2 0 eee cee eee eee 37 Chapter 7 Profiling Page 0 0c cee eee 46 Navigating the Profiling Page 0 ccc eee ee 46 Chapter 8 Factory Page 0 cece ee eee 53 Navigating the Factory Page 53 Chapter 9 Features 22020002000 00 00 ecdere x wows Ress 56 Chapter 10 Appendix 0 0 0 0 c cee eee 68 Troubleshooting zoe eoe bob RR REOR DES 68 Modbus Registers For All Parameters 00008 71 Specifications 6 eee RI 86 Ordering Information 0 00 c aironi cee eee eens 87 Index s Sac ake he Gans a clots ea Mews pe EE e PE MADE 90 Declaration of Conformity 0 00 cece eee eee eee 94 Watlow EZ ZONE ST Table of Contents Chapter 1 Overview The EZ ZONE ST Provides Total Thermal System Control Watlow s new EZ ZONE ST solid state controller offers complete thermal system control in a single package You get a PID temperature controller al ready connected to a high amperage solid state relay with the option of adding a properly sized heat sink an over under temperature limit a shut down power contactor digital communications and a remote user interface in one package You can stack the EZ ZONE ST into multiple con figurations to solve a wide range of application needs Features
115. ere an adjustment is necessary keep in mind the following TRU TUNE Band is automatically selected by TRU TUNE when its value is equal to zero This de fault value is appropriate for the vast majority of pro cess control systems The only time it is advisable to modify it is if TRU TUNE is currently activated but the process variable continuously deviates from the set point at a relatively large amplitude and does not attenuate In this case adjust the Band so it exceeds the maximum deviation from the set point TRU TUNE Gain the default setting of 3 is cho sen to provide optimum response to set point and load changes for a wide range of industrial processes It should only be adjusted if the above operational guidelines have been strictly adhered to In that case a gain may help if control performance is observed Watlow EZ ZONE ST e 58 Chapter 9 Features to be too slow or too fast To increase the speed of re sponse increase the gain To decrease response speed decrease the gain A time period of up to the Time Integral Operations Page Loop Menu value multiplied by 10 seconds is required before an effect can be observed Filter Time Setup Page Analog Input Menu When TRU TUNE d is enabled the Filter Time is automatically set by the adaptive tune process and NW by the user is not permitted WARNING During autotuning the controller sets the output to 100 percent and attempts to drive the process va
116. es as a percent age Profile Activity Lights when a profile is run ning Flashes when a profile is paused Communications Activity Flashes when the RUI is com municating with a controller Advance Key Advances through pa Up and Down Keys 0 O rameter prompts In the Home Page adjusts the set point in the lower display In other pages changes the up per display to a higher or lower value or changes a parameter selection 19 Limit nE Tuning r P Ramping dEcc L hEr Device Error r Current Error m Heater Error No Device Connected If no device is connected to the RUI or the controller on the selected zone is disconnected will ap pear in the upper display and will appear in the lower display Press the Infinity Key to move to the next zone If a zone disappears check network wiring Watlow EZ ZONE ST e 23 Chapter 3 Remote User Interface RUI The RUI Page e Press the Advance Key to move through the pa rameters of the menu Press the Up or Down Q key to move through the parameter values Press the Infinity Key to move backwards through the levels parameter to menu menu to Home Page Press the Up O or Down key to move through Press and hold the Infinity Key for two seconds the menus to return to the Home Page Press the Advance Key to select a menu Display Parameter name Settings
117. et point is incorrect Digital input function is incorrect Sensor improperly wired or open Incorrect setting of sensor type Calibration corrupt Reset alarm when process is within range or disable latching Set output to correct alarm source instance Set alarm source to correct input in stance Correct cause of sensor input out of alarm range Set alarm set point to correct trip point Set alarm to correct type process de viation or power Set digital input function and source instance Disable alarm silencing if required Disable alarm blocking if required Set output to correct alarm source instance Set alarm source to correct input in stance Set alarm set point to correct trip point Set alarm to correct type process de viation or power Correct wiring or replace sensor Match setting to sensor used Check calibration of controller Check cause of under temperature Clear latched alarm Establish correct alarm set point Set alarm source to proper setting Check cause of over temperature Clear latched alarm Establish correct alarm set point Set alarm source to proper setting Correct wiring or replace sensor Match setting to sensor used Check calibration of controller Correct cause of sensor input out of limit range Set limit set point to correct trip point Set digital input function and source instance
118. filing Page Step 2 Jump Step unsigned 534 RUI Modbus Profile Management Profiling Page Step 2 Minutes unsigned 524 RUI Modbus Profile Management Profiling Page Step 2 Rate IEEE Float 526 RUI Modbus Profile Management Profiling Page Step 2 Seconds unsigned 525 RUI Modbus Profile Management Profiling Page Step 2 Step Type unsigned 520 RUI Modbus Profile Management Profiling Page Step 2 Target Set Point IEEE Float 521 RUI Modbus Profile Management Profiling Page Step 2 Wait Event Event 1 unsigned 530 RUI Modbus Profile Management Profiling Page Step 2 Wait Event Event 2 unsigned 531 RUI Modbus Profile Management Profiling Page Step 2 Wait For Process IEEE Float 532 RUI Modbus Profile Management Profiling Page Step 3 End Type unsigned 556 RUI Modbus Profile Management Profiling Page Step 3 Event Output 1 unsigned 548 RUI Modbus Profile Management Profiling Page Step 3 Event Output 2 unsigned 549 RUI Modbus Profile Management Profiling Page Step 3 Hours unsigned 543 RUI Modbus Profile Management Profiling Page Step 3 Jump Count unsigned 555 RUI Modbus Profile Management Profiling Page Step 3 Jump Step unsigned 554 RUI Modbus Profile Management Profiling Page Step 3 Minutes unsigned 544 RUI Modbus Profile Management Profiling Page Step 3 Rate IEEE Float 546 RUI Modbus Profile Management Profiling Page Step 3 Seconds unsigned 545 RUI Modbus Profile Management Profiling Page Step 3 Step Type u
119. for three seconds until appears in the lower display and the profile num ber appears in the upper display Press the Up or Down Q key to change to another profile Press the Advance Key to move to the selected profile s first step Press the Up O or Down O keys to move through the steps Press the Advance Key to move through the selected step s settings Press the Up or Down Q keys to change the step s settings Press the Infinity Key at any time to return to the step number prompt Press the Infinity Key again to return to the profile number prompt From any point press and hold the Infinity Key for two seconds to return to the Home Page Note Changes made to profile parameters in the Profiling Pages will be saved and will also have an immediate impact on the running profile Some parameters in the Profile Status Menu can be changed for the currently running profile but should only be changed by knowledgeable personnel and with caution Changing pa rameters via the Profile Status Menu will not change the stored profile but will have an immediate impact on the profile that is running Display Parameter name Set Description tings Profile Select the profile to be edited or viewed Step Select a step to edit or view ProF ProF 1 to 10 Step Type Select a step type End Step Type Parameters Target Set Point Select the set point for this step ccn deed for Mod
120. g Check zone range and address Replace or repair RUI or controller Check scaling Call technical support Watlow EZ ZONE ST Appendix Modbus Registers For All Parameters Group Page Menu Name in User s Manual Data Modbus Access Note Excessive Location Type Address RUI Modbus writes to less 40 001 EEPROM over offset Modbus can Alarm Setup Alarms Alarm 1 Blocking unsigned 107 RUI Modbus cause premature Alarm Operation Alarms Alarm 1 Clear Request unsigned 108 Modbus only EEPROM failure Alarm Operation Alarms Alarm 1 High Set Point IEEE Float 97 RUI Modbus The EEPROM is rated for Alarm Setup Alarms Alarm 1 Hysteresis IEEE Float 101 RUI Modbus 1 000 000 writes Alarm Setup Alarms Alarm 1 Latching unsigned 106 RUI Modbus See Saving Set Alarm Setup Alarms Alarm 1 Logic unsigned 104 RUI Modbus tings to Nonvola Alarm Operation Alarms Alarm 1 Low Set Point IEEE Float 99 RUI Modbus tile Memory in Alarm Setup Alarms Alarm 1 Sides unsigned 103 RUI Modbus Chapter 2 Install Alarm Operation Alarms Alarm 1 Silence Request unsigned 109 Modbus only and Wire Alarm Setup Alarms Alarm 1 Silencing unsigned 105 RUI Modbus Alarm Setup Alarms Alarm 1 Source unsigned 111 RUI Modbus Alarm Setup Alarms Alarm 1 Source Instance unsigned 112 RUI
121. ge Step 38 Event Output 1 unsigned 1248 RUI Modbus Profile Management Profiling Page Step 38 Event Output 2 unsigned 1249 RUI Modbus Profile Management Profiling Page Step 38 Hours unsigned 1243 RUI Modbus Profile Management Profiling Page Step 38 Jump Count unsigned 1255 RUI Modbus Profile Management Profiling Page Step 38 Jump Step unsigned 1254 RUI Modbus Profile Management Profiling Page Step 38 Minutes unsigned 1244 RUI Modbus Profile Management Profiling Page Step 38 Rate IEEE Float 1246 RUI Modbus Profile Management Profiling Page Step 38 Seconds unsigned 1245 RUI Modbus Profile Management Profiling Page Step 38 Step Type unsigned 1240 RUI Modbus Profile Management Profiling Page Step 38 Target Set Point IEEE Float 1241 RUI Modbus Profile Management Profiling Page Step 38 Wait Event Event 1 unsigned 1250 RUI Modbus Profile Management Profiling Page Step 38 Wait Event Event 2 unsigned 1251 RUI Modbus Profile Management Profiling Page Step 38 Wait For Process IEEE Float 1252 RUI Modbus Profile Management Profiling Page Step 39 End Type unsigned 1276 RUI Modbus Profile Management Profiling Page Step 39 Event Output 1 unsigned 1268 RUI Modbus Profile Management Profiling Page Step 39 Event Output 2 unsigned 1269 RUI Modbus Profile Management Profiling Page Step 39 Hours unsigned 1263 RUI Modbus Profile Management Profiling Page Step 39 Jump Count unsigned 1275 RUI Modbus Profile Manag
122. gement Profiling Page Step 34 Seconds unsigned 1165 RUI Modbus Profile Management Profiling Page Step 34 Step Type unsigned 1160 RUI Modbus Profile Management Profiling Page Step 34 Target Set Point IEEE Float 1161 RUI Modbus Profile Management Profiling Page Step 34 Wait Event Event 1 unsigned 1170 RUI Modbus Profile Management Profiling Page Step 34 Wait Event Event 2 unsigned 1171 RUI Modbus Profile Management Profiling Page Step 34 Wait For Process IEEE Float 1172 RUI Modbus Profile Management Profiling Page Step 35 End Type unsigned 1196 RUI Modbus Profile Management Profiling Page Step 35 Event Output 1 unsigned 1188 RUI Modbus Profile Management Profiling Page Step 35 Event Output 2 unsigned 1189 RUI Modbus Profile Management Profiling Page Step 35 Hours unsigned 1183 RUI Modbus Profile Management Profiling Page Step 35 Jump Count unsigned 1195 RUI Modbus Profile Management Profiling Page Step 35 Jump Step unsigned 1194 RUI Modbus Profile Management Profiling Page Step 35 Minutes unsigned 1184 RUI Modbus Profile Management Profiling Page Step 35 Rate IEEE Float 1186 RUI Modbus Profile Management Profiling Page Step 35 Seconds unsigned 1185 RUI Modbus Profile Management Profiling Page Step 35 Step Type unsigned 1180 RUI Modbus Profile Management Profiling Page Step 35 Target Set Point IEEE Float 1181 RUI Modbus Profile Management Profiling Page Step 35 Wait Event Event 1 unsigned 1190
123. he PID coefficients based on current thermal process responses In the normal use of TRU TUNE it is recommended that the user execute the following sequence of steps 1 Autotune the system at the desired operational set point 2 When complete activate TRU TUNE 3 Monitor the process until satisfactory control per formance is attained For applications with known disturbances where additional adaptive tuning is not desired 4 Deactivate TRU TUNE 5 Return to Step 2 if control performance subse quently deteriorates due to an alteration in the process such as 1 a change in load 2 a change in set point or 3 a change in process dynamics Use of TRU TUNE to Fine Tune PID Coefficients The two step process above step 1 amp 2 is the quickest method for fine tuning a controller to the process The first step autotuning establishes initial control settings based on the system s response to crossing a set point five times Sometimes the tradi tional auto tune does not result in control performance that meets expectations or is terminated due to slow process responses If one or both of these conditions exist as an alternative to the standard autotune TRU TUNE can be enabled while placing the control in automatic mode When TRU TUNE is activated PID coefficients will be further adjusted as the process runs under automatic control Once the system is sta bilized where the process variable remains within a
124. he last automatic operation Changes take effect after three seconds or immedi ately upon pressing either the Advance Key or the Infinity Key On Off Control On off control switches the output either full on or full off depending on the input set point and hysteresis values The hysteresis value indicates the amount the process value must deviate from the set point to turn on the output Increasing the value decreases the number of times the output will cycle Decreasing hysteresis improves controllability With hysteresis set to 0 001 the process value would stay closer to the set point but the output would switch on and off more frequently and may result in the output chattering On off control can be selected with Heat Algorithm Watlow EZ ZONE ST Chapter 9 Features or Cool Algorithm Setup Page Loop Menu On off hysteresis can be set with Heat Hysteresis or Cool Hysteresis Operations Page Loop Menu Note Input Error Failure Mode FA 77 does not function in on off control mode The output goes off p A The heating action switches off when the process temperature rises above the set point Set Point Temperature Hysteresis SS Process Temperature The heating action switches on when the process temperature drops below the set point minus the hysteresis The heating action switches on at startup La MMI Time 4 The cooling acti
125. he optimum heating and or cooling PID parameter settings based on the system s response to crossing a set point five times By default the sixth parameter of the Home Page allows the user to start and stop autotuning using the defined Autotune Set Point Operations Page Loop Menu value default 90 of closed loop set point The Autotune Set Point can be changed if the default value does not suit the application Note Autotuning is not recommended while a profile is running or ramping is enabled While tuning is underway the upper display will flash between the process variable and E Un E while the lower display will flash between and the set point This tuning mode must not be interrupted and it can take up to 60 minutes to complete If not complete in 60 minutes the autotuning will timeout and the PID coefficients in effect prior to starting the autotune will be reapplied and used When the tun ing process is complete whether successful or not the lower display will show the operational set point and the controller will control to that set point either using the newly calculated successful tune PID coefficients or the original values The PID parameter values generated by the auto tune will continue to be used until one of the following conditions occurs The autotune process is repeated PID values are manually adjusted TRU TUNE is enabled If the tuning is interrupted or the 60 minute time period is exce
126. he same for 40 A heatsink ake all S Panel Cutout S 41 9 mm 45 21 mm 1 65 in S2 0f mm your panel thickness 1 78 in 2 05 in 1 77 to 1 79 in 1 5 to 9 7 mm 0 06 to 0 38 in 8 mounting screw 35 mm 1 38 in 177 8 mm 7 00 in 188 6 mm 7 43 in 9 65 mm 0 38 in minimum t TM Front View 17 4mm p 63 5 mm 126 1 mm 29 5 mm 0 85 in 0 68 in 2 5 in 4 97 in 1 16 in 25 A shown 98 6 mm Side View pen 3 88 in m 1575 mm 40min 6 20 in Front View 0 06 in WARNING The heat CAUTION The EZ o sink can become hot ZONE ST must be ez foe Bil JU during operation mounted vertically QE Back View as shown to meet Side View m the ampere ambient oi temperature perfor dz mance curve Watlow EZ ZONE ST e 5 o Chapter 2 Install and Wire Wiring WARNING Use National Electric NEC or other country specific standard wiring and safety prac tices when wiring and connecting this controller to a power source with a contactor ST _ _ no limit BorF NOTE A2 is connected internally to ter minal 98 A1 is connected internally t
127. hing does not limit the current and voltage applied to the heater With variable time base outputs the PID algorithm calculates an output between 0 and 100 but the out put is distributed in groupings of three ac line cycles For each group of three ac line cycles the controller decides whether the power should be on or off There is no fixed cycle time since the decision is made for each group of cycles When used in conjunction with a zero cross burst fire device such as a solid state pow er controller switching is done only at the zero cross of the ac line which helps reduce electrical noise RFI Variable time base should be used with solid state power controllers such as a solid state relay SSR or silicon controlled rectifier SCR power controller Do not use a variable time base output for control ling electromechanical relays mercury displacement relays inductive loads or heaters with unusual resis tance characteristics The combination of variable time base output and a solid state relay can inexpensively approach the effect of analog phase angle fired control Select the AC Line Frequency Setup Page Global Menu 50 or 60 Hz 100 percent output 10 ON 0 OFF 50 percent output 3 ON 3 OFF 66 percent output 6 ON 3 OFF Watlow EZ ZONE ST e 63 Chapter 9 Features Single Set Point Ramping Ramping protects materials and systems that can not tolerate rapid temperature changes The
128. icate using Watlow s Standard Bus only Note Do not route network wires with power wires EZ ZONE ST ST BorF M OO OQoooOQO cc power o OQ UO OQ Oo o z la power E EJ power 4 ks common EZ ZONE ST ST__ A_M_ ____ 98 fj power 4 gg Power 4 cclleom 4 ICA T R CB T R b B5 D6 D5 PLC power power common TJR T R Wiring a network of controllers using Modbus Watlow EZ ZONE ST s 20 o Chapter 2 Install and Wire Setting the Address Modbus Controller Address The address of an EZ ZONE ST controller with the Modbus option ST__ __M can be set to ranges from 1 to 8 using the DIP switch and ranges 1 to 247 using software Set switch 4 to on to use Modbus communications Modbus RTU addresses from 1 to 247 can be pro grammed into the controller using Standard bus communications Only one controller can be con nected to the network while changing the address using communications After the Modbus address is changed all four DIP switches must be turned on set to 8
129. id state or mechanical relay Defective current transformer or con troller Noisy electrical lines Security set to incorrect level Digital input set to lockout keypad Custom parameters incorrect EZ Key function incorrect EZ Key function instance not correct Keypad malfunction Communications wired incorrectly Communications wires routed with power wires Zone address set out of range RUI or controller defective Scaling is out of range Verify output function is correct heat or cool Correct sensor wiring red wire nega tive Verify and correct wiring Replace heater Replace or repair power controller Replace or repair controller Replace or repair controller Check that the load current is proper Correct cause of overcurrent and or en sure current trip set point is correct Check that the load current is proper Correct cause of undercurrent and or ensure current trip set point is correct Replace relay Replace relay Replace or repair sensor or controller Route wires appropriately check for loose connections add line filters Check lockout setting in Factory Page Change state of digital input Change custom parameters in Factory Page Verify EZ Key function in Setup Menu Check that the function instance is correct Replace or repair controller Check and correct wiring Check and correct wirin
130. il is mounted rotate the controller to an upright position rotate the bottom of the controller for before comp onents are mounted on it until the lower flange snaps into place ward Then lift the the controller off of the rail Mounting the Remote User Interface RUI N 2 While pressing the case assembly firmly against the panel L Collar slide the mounting collar over the back of the RUI Assembly If the installation does not require an IP65 NEMA 4X seal slide the mounting collar up to the back of the panel tight enough to eliminate the spacing between the gasket and the panel Ad 1 Make the panel cutout using the mounting template di mensions in this chapter Insert the case assembly into the panel cutout 3 For an IP65 NEMA 4X seal place the blade of a screw driver in the notch of the mounting collar assembly and push toward the panel while applying pressure to the face of the RUI Don t be afraid to apply enough pressure to properly install the RUI If you can move the case assembly back and forth in the cutout you do not have a proper seal The tabs on each side of the bracket have teeth that latch into the ridges Each tooth is staggered at a different depth from the front so that only one of the tabs one each side is locked onto the ridges at a time The seal is good if the distance from the panel and the top half of the assembly is 16 mm 0 630 in or less and the dis tance botto
131. ile Management Profiling Page Step 1 Event Output 1 unsigned 508 RUI Modbus Profile Management Profiling Page Step 1 Event Output 2 unsigned 509 RUI Modbus Profile Management Profiling Page Step 1 Hours unsigned 503 RUI Modbus Profile Management Profiling Page Step 1 Jump Count unsigned 515 RUI Modbus Profile Management Profiling Page Step 1 Jump Step unsigned 514 RUI Modbus Profile Management Profiling Page Step 1 Minutes unsigned 504 RUI Modbus Profile Management Profiling Page Step 1 Rate IEEE Float 506 RUI Modbus Profile Management Profiling Page Step 1 Seconds unsigned 505 RUI Modbus Profile Management Profiling Page Step 1 Step Type unsigned 500 RUI Modbus Profile Management Profiling Page Step 1 Target Set Point IEEE Float 501 RUI Modbus Profile Management Profiling Page Step 1 Wait Event Event 1 unsigned 510 RUI Modbus Profile Management Profiling Page Step 1 Wait Event Event 2 unsigned 511 RUI Modbus Profile Management Profiling Page Step 1 Wait For Process IEEE Float 512 RUI Modbus Profile Management Profiling Page Step 2 End Type unsigned 536 RUI Modbus Profile Management Profiling Page Step 2 Event Output 1 unsigned 528 RUI Modbus Profile Management Profiling Page Step 2 Event Output 2 unsigned 529 RUI Modbus Profile Management Profiling Page Step 2 Hours unsigned 523 RUI Modbus Profile Management Profiling Page Step 2 Jump Count unsigned 535 RUI Modbus Profile Management Pro
132. ings or load a saved configuration 1 Home Page 5 always 2 Operations Page 3 Profiling Page 4 Setup Page amp Diagnostics Menu 5 Lock Calibration amp Custom menus 0 No changes allowed 5 always 1 Home Page 2 Operations Page 3 Profiling Page 4 Setup Page amp Diagnostics Menu 5 Lock Calibration amp Custom menus G d Software ID always S id View the software ID Software Release always View the software release number Software Prototype always View the software minor version number Software Build always View the software build number Serial Number always View the controller serial number Date of Manufacture always View the controller manufacture date Don t change settings Factory settings User Set 1 SEE C User Set 2 Don t always change Watlow EZ ZONE ST Chapter 3 Remote User Interface RUI Display Parameter name Settings Range Default Appears Description If USr 5 User Save Set Don t change settings Don t always Save the RUI Page settings User Set 1 change User Set 2 CLEd Communications LED Assignment Comms Port 1 always gn y C LEd Set the activity that the communications indicator Comms Port 2 light will monitor Comms Ports 1 amp 2 no monitoring Watlow EZ ZONE ST e 25 e Chapter 3 Remote User Interface RUI Changing the Position of the Operations Page or Profiling Page in the Lockout Menu To change the position of the Operations Page o
133. ion Menu and Custom Menus The op erator also wants to read and write to the Home Page In the RUI Page Lockout Menu set Read Lock to 1 and Set Lock to 5 In the Factory Page Lockout Menu set Lock Op erations Page to 2 and Lock Profiling Page to 3 Programming the EZ Key You can program the Remote User Interface RUI EZ Key either in the Setup Menu using the RUI or with configuration software such as EZ ZONE Configura tor using a personal computer The following examples show how to program the EZ Key to start and stop a profile Using the RUI 1 To go to the Setup Page from the Home Page press both the Up O and Down Q keys for six seconds will appear in the upper display and will appear in the lower display 2 Press the Up Key O twice will appear in the upper display and S will appear in the lower display 3 Press the Advance Key once will appear in the upper display and Digital Input Func tion will appear in the lower display 3 Press the Up O or Down O key to scroll through the functions that can be assigned to the EZ Key When Profile Start Stop appears in the upper display and appears in the lower display press the Infinity Key once to select that function and move to the Function Instance parameter 4 Press the Up or Down Q key to scroll to the pro file that you want the EZ Key to control 5 Press the Advance Key to make your selection and move back to the Digi
134. it Low Set Point 31 Lot Lockout Menu 24 54 LoCo Lock Operations Page 54 6 6 L o CP Lock Profiling Page 54 66 Loop Menu 33 40 Closed Loop Low Set Point iL ooP L SdLimit Sides 40 C L SP 4 n Manual Power 41 n Minutes 48 n Monitor Menu 31 u Electrical Measurement 55 59 nga Number of Zones 24 E Output Control 42 o F_ Digital Output Function Instance 39 Output Function Instance 42 Digital Output Function 39 Output Function 42 Output High Power Scale 42 Output Low Power Scale 42 Open Loop Set Point 34 Output Time Base 42 Output Menu 42 Parameter 1 to 20 Custom 4 tol P4Y Step 47 co pa Mo D pa r3 o o ro oro fr rr rr 7 50 O Pr uc o c o a rr mm 3 gt 1 5 o P3 o Profile Action Request 28 9 Profile Action Request 35 Profile 47 Profile Start 28 29 Profile Status Menu 35 Profile Start 35 Profile Type 45 Process Value 31 Process Value Active 32 Rate 47 48 49 Range High 38 60 Range Low 38 60 Read Lockout Security 66 Yr bay o dD Watlow EZ ZONE ST e 90 e Appendix rc LoC Read Lock 24 rc P Ramping 23 29 69 c P Ramp Action 41 64 r Ej Ramp Rate 41 64 rc S C Ramp Scale 41 64 rc EL RTD Leads 38 5 5 A Sensor Backup Enable 39 60 5 b L d Software Build 24 55 GEL Seconds 48
135. it Setup Limit Limit Sides unsigned 279 RUI Modbus Limit Operation Limit Limit State unsigned 280 Modbus only Watlow EZ ZONE ST e 73 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Control Setup Global Guaranteed Soak Enable unsigned 299 RUI Modbus Profile Control Setup Global Guranteed Soak Deviation IEEE Float 300 RUI Modbus Profile Control Operation ProfileStatus Jump Count Remaining unsigned 305 RUI Modbus Profile Control Operation ProfileStatus Monitor Current File unsigned 295 RUI Modbus Profile Control Operation ProfileStatus Active Step unsigned 296 RUI Modbus Profile Control Operation ProfileStatus Monitor Profile State unsigned 294 RUI Modbus Profile Control Operation ProfileStatus Step Time Remaining IEEE Float 303 RUI Modbus Profile Control Operation ProfileStatus Monitor Target Set Point IEEE Float 297 RUI Modbus Profile Control Operation ProfileStatus Profile Action Request unsigned 306 RUI Modbus Profile Control Operation ProfileStatus Profile Start Type unsigned 302 RUI Modbus Profile Control Operation ProfileStatus Profile Start unsigned 292 RUI Modbus Profile Management Profiling Page Step 1 End Type unsigned 516 RUI Modbus Prof
136. ive Set Point Q keys to change the value of read write parameters value in lower display The Action parameter only just as you would in any other menu appears if there is an active message See To Clear an Alarm in the RUI Keys and Displays chapter Default Home Page Default parameters appear only on models that support those options Custom Menu Home Parameter Name Settings Custom Parameter Page and Menu Number Page Menu Display defaults 1 Upper Display value only Active Process Value aM P i tage Anion IAC Em ome Page oly Gee RUT Chaps Ai ona ose to Operations Pgs top Men Fr meme aPr orestis Poe Moor ens lite Gum __ GP Operations Page Monitor Menu E CANNE i hr Display defaults E E fe Serene Care Operations Page rorem mesa BS Home Page only Se roe Page Chien PACI Profle Aeon ona Rte Home Pag ony See Profle Page Caner 10 11 to 20 i None nont Add parameters to the Home Page in the Custom Menu Factory Page f Control Mode is set to Auto the process value is in the upper display and the Closed Loop Set Point read write is in the lower display wijf EJS sim Je amp If a profile is running the process value is in the upper display and the Target Set Point read only is in the lower display If Control Mode is set to Manual the process value is in the upper display and the output p
137. le range representing other units for special applications You can reverse scales from high values to low values for analog input sig nals that have a reversed action For example if 50 psi causes a 4 mA signal and 10 psi causes a 20 mA signal Scale low and high low values do not have to match the bounds of the measurement range These along with range low and high provide for process scaling and can include values not measureable by the controller Regardless of scaling values the measured value will be constrained by the electrical measurements of the hardware Select the low and high values with Scale Low and Scale High 5 5 Select the displayed range with Range Low and Range High Setup Page Analog Input Menu Range High and Range Low With a process input you must choose a value to rep resent the low and high ends of the current or voltage range Choosing these values allows the controller s display to be scaled into the actual working units of measurement For example the analog input from a humidity transmitter could represent 0 to 100 percent relative humidity as a process signal of 4 to 20 mA Range Low would be set to 0 to represent 4 mA and Range High set to 100 to represent 20 mA The indica tion on the display would then represent percent hu midity and range from 0 to 100 percent with an input of 4 to 20 mA Select the low and high values with Range Low and Range High Setup Page Analog Input Menu
138. ling Page Step 27 Rate IEEE Float 1026 RUI Modbus Profile Management Profiling Page Step 27 Seconds unsigned 1025 RUI Modbus Profile Management Profiling Page Step 27 Step Type unsigned 1020 RUI Modbus Profile Management Profiling Page Step 27 Target Set Point IEEE Float 1021 RUI Modbus Profile Management Profiling Page Step 27 Wait Event Event 1 unsigned 1030 RUI Modbus Profile Management Profiling Page Step 27 Wait Event Event 2 unsigned 1031 RUI Modbus Profile Management Profiling Page Step 27 Wait For Process IEEE Float 1032 RUI Modbus Profile Management Profiling Page Step 28 End Type unsigned 1056 RUI Modbus Profile Management Profiling Page Step 28 Event Output 1 unsigned 1048 RUI Modbus Profile Management Profiling Page Step 28 Event Output 2 unsigned 1049 RUI Modbus Profile Management Profiling Page Step 28 Hours unsigned 1043 RUI Modbus Profile Management Profiling Page Step 28 Jump Count unsigned 1055 RUI Modbus Profile Management Profiling Page Step 28 Jump Step unsigned 1054 RUI Modbus Profile Management Profiling Page Step 28 Minutes unsigned 1044 RUI Modbus Profile Management Profiling Page Step 28 Rate IEEE Float 1046 RUI Modbus Profile Management Profiling Page Step 28 Seconds unsigned 1045 RUI Modbus Profile Management Profiling Page Step 28 Step Type unsigned 1040 RUI Modbus Profile Management Profiling Page Step 28 Target Set Point IEEE Float 1041 RUI Modbus Profile M
139. log Input Operation Analog Input Input 1 Error Status unsigned 41 RUI Modbus Analog Input Setup Analog Input Input 1 Filter Time IEEE Float 55 RUI Modbus Analog Input Setup Analog Input Input 1 Linearization unsigned 43 RUI Modbus Analog Input Setup Analog Input Input 1 Range High IEEE Float 63 RUI Modbus Analog Input Setup Analog Input Input 1 Range Low IEEE Float 61 RUI Modbus Analog Input Setup Analog Input Input 1 RTD Leads unsigned 44 RUI Modbus Analog Input Setup Analog Input Input 1 Scale High IEEE Float 59 RUI Modbus Analog Input Setup Analog Input Input 1 Scale Low IEEE Float 57 RUI Modbus Analog Input Setup Analog Input Input 1 Sensor Backup Enable unsigned 65 RUI Modbus Watlow EZ ZONE ST e 71 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Analog Input Setup Analog Input Input 1 Sensor Type unsigned 42 RUI Modbus Analog Input Operation Analog Input Input 2 Error Status unsigned 69 RUI Modbus Analog Input Factory Calibration Input 2 Calibration Electrical Offset IEEE Float 75 RUI Modbus Analog Input Operation Analog Input Input 2 Calibration Offset IEEE Float 79 RUI Modbus Analog Input Factory Calibration Input 2 Electrical Measuremen
140. ly Appears If Cool Algorithm Setup Page is set to On Off Heat Algorithm or Cool Algorithm Setup Page is set to PID Heat Algorithm or Cool Algorithm Setup Page is set to PID Heat Algorithm and Cool Algo rithm Setup Page is set to PID or On Off Alarm Sides Set up Page is not set to High Alarm Sides Set up Page is not set to Low Modbus only Modbus only Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 5 Operations Page Display Parameter name Description Set Range Default Modbus Appears If tings less 40 001 offset read write NOTE To use the current sensing feature Time Base Setup Page Output Menu Current Menu Current C hi High Set Point Set the current value that will trigger a high Heater Error state Current Low Set Point Set the current value that will trigger a low Heater Error state Current Read View the most recent current value monitored by the current transformer Current Error View the cause of the most recent load fault Current Heater Error View the cause of the most recent load fault monitored by the current transformer Profile Status Profile Start Select a step or profile to load Profile Status Profile Action Request Select what action to apply to the cur rently loaded profile Profile
141. m 1 or 2 Source Instance If Alarm Source is set to input select which input to use Alarm 1 or 2 Hysteresis Set the hysteresis for an alarm This determines how far into the safe re gion the process value needs to move before the alarm can be cleared Select what the output condition will be during in the alarm state Alarm 1 or 2 Sides Select which side or sides will trigger this alarm Alarm 1 or 2 Latching Turn alarm latching on or off A latched alarm has to be turned off by the user Alarm 1 or 2 Blocking Select when an alarm will be blocked After startup and or after the set point changes the alarm will be blocked until the process value enters the normal range Alarm 1 or 2 Silencing Turn alarm silencing on to allow the user to disable this alarm Display an alarm message when an alarm is active Current Sides Select which side of the current to monitor Current Reading Enable Display solid state relay SSR failure and heater failure messages on the RUI remote user interface Current Limit Enable Trip the limit if a shorted solid state relay SSR is detected Range Default Integer values for Modbus in parenthesis 1 0 001 to 9 999 000 F or units 0 001 to 5 555 000 C Close On Alarm 17 Close On Open On Alarm 66 Alarm Both 13 Both High 37 i 0 Low 53 Non Latching 60 Latching 49 ing ff ff n Off 62 Startup 88 Se
142. m Type Setup Page Alarm Menu is set to process set the process value that will trigger a high alarm deviation set the span of units above the set point that will trigger a high alarm Alarm 1 or 2 Clear Request Write to this register to clear an alarm state Alarm 1 or 2 Silence Request Write to this register to clear an alarm state 0 001 to 9 999 000 F or units 0 001 to 5 555 000 C 0 0 to 9 999 000 seconds per repeat 0 0 to 9 999 000 seconds 1 000 0 to 1 000 0 F or units 555 0 to 555 5 C 100 to 100 heat and cool 0 to 100 heat only 100 to 0 cool only Process 1 999 000 to 9 999 000 F or units 1 128 33 to 5 537 22 C Deviation 1 999 000 to 9 999 000 F or units 1 110 56 to 5 555 56 C Process 1 999 000 to 9 999 000 F or units 1 128 33 to 5 537 22 C Deviation 1 999 000 to 9 999 000 F or units 1 110 56 to 5 555 56 C Default 180 0 sec onds per repeat 0 0 seconds 300 0 F or units 148 9 C Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Modbus less 40 001 offset read write 240 float rw 226 float rw 228 float rw 230 float rw 23 99 1 float 115 2 float rw 97 1 float 113 2 float rw 108 1 unsigned 124 2 unsigned write only 109 1 unsigned 125 2 unsigned write on
143. m half and the panel is 13 3 mm 0 525 in or less Watlow EZ ZONE ST e 11 Chapter 2 Install and Wire Replacing the Solid State Relay on a Controller without a Contactor sr 4 1 Pinch the release levers on the top and 2 With a Phillips screwdriver remove 3 Lift the controller body exposing bottom of the control module and lift the the four nearest screws that were un the solid state relay bottom edge forward to detach the unit der the module Replacing the Solid state Relay 1 Using a Phillips screwdriver replace the two screws connecting the solid state relay to the heat sink 2 Place the controller body over the solid state relay and using a Phillips screwdriver replace the four screws securing it 3 Snap the control module in place bottom edge first NOTE For controller models without a contactor ST A 4 Using a Phillips screwdriver remove the _ ____ the solid state relay must be mounted with the larger two screws connecting the solid state relay power terminals on the top and the smaller control terminals on to the heat sink the bottom Watlow EZ ZONE ST e 12 e Chapter 2 Install and Wire Replacing the Solid State Relay on a Controller with a Contactor sr Bor TN 1 Pinch the release levers on the top and 2 With a Phillips screwdriver remove bottom of the control module and lift the the four nearest screws that were under right edge forward to deta
144. nals A WARNING If high voltage is applied to a low voltage con troller irreversible damage will occur Note Excessive writes to EEPROM over Modbus can cause premature EEPROM failure The EEPROM is rated for 1 000 000 writes See Sav ing Settings to Nonvolatile Memory in Chapter 2 Install and Wire Standard Bus EIA 485 Communications Slot C L CF CD CE common T R T R e Wire T R to the A terminal of the EIA 485 port Wire T R to the B terminal of the EIA 485 port e Wire common to the common terminal of the EIA 485 port Do not route network wires with power wires Connect net work wires in daisy chain fash ion when connecting multiple devices in a network Do not connect more than 16 controllers on a network maximum network length 1 200 meters 4 000 feet 1 8th unit load on EIA 485 bus ST A_ RUI Modbus RTU or Stan Slot C CC CA CB common T R T R Wire T R to the A terminal of the EIA 485 port Wire T R to the B terminal of the EIA 485 port e Wire common to the common terminal of the EIA 485 port Do not route network wires with power wires Connect net work wires in daisy chain fash ion when connecting multiple devices in a network A termination resistor may be required
145. nd Voltage Variations Immunity Harmonic Current Emissions Voltage Fluctuations and Flicker NOTE 1 Use of an external filter is required to comply with conducted emissions limits for load terminals For 230V ac or less use Watlow P N 14 0019 or Crydom P N 1F25 filters For voltages up to 440V ac use Watlow P N 14 0020 or Crydom P N 3F20 filters NOTE 2 A Line Impedance Stabilization Network LISN was used for conducted emissions measurements 2NOTE 3 To comply with flicker requirements cycle time must be set greater than 4 seconds if Load Power is lt 16 A or meet EN 61000 3 11 impedance requirements for load currents 16 A Watlow EZ ZONE ST e 94 o Appendix Series EZ ZONE ST Tower cont EN 61010 1 2001 73 23 EEC Low Voltage Directive Safety Requirements of electrical equipment for measurement control and laboratory use Part 1 General requirements Compliant with 2002 95 EC RoHS Directive 2002 96 EC WEEE Directive H Equipment Requires Recycling Amperage Temperature Derating Curves EZ ZONE ST Amps Full On 9 25A 40A Raymond D Feller III Name of Authorized Representative General Manager 25 30 35 40 45 50 55 60 65 70 75 Deg C Heatsink Inlet Temperature Winona Minnesota USA Place of Issue February 2006 Title of Authorized Representative fq Sta Date of Issue Signature of Authorized Represen
146. ned 1210 RUI Modbus Profile Management Profiling Page Step 36 Wait Event Event 2 unsigned 1211 RUI Modbus Profile Management Profiling Page Step 36 Wait For Process IEEE Float 1212 RUI Modbus Profile Management Profiling Page Step 37 End Type unsigned 1236 RUI Modbus Profile Management Profiling Page Step 37 Event Output 1 unsigned 1228 RUI Modbus Profile Management Profiling Page Step 37 Event Output 2 unsigned 1229 RUI Modbus Profile Management Profiling Page Step 37 Hours unsigned 1223 RUI Modbus Profile Management Profiling Page Step 37 Jump Count unsigned 1235 RUI Modbus Profile Management Profiling Page Step 37 Jump Step unsigned 1234 RUI Modbus Profile Management Profiling Page Step 37 Minutes unsigned 1224 RUI Modbus Profile Management Profiling Page Step 37 Rate IEEE Float 1226 RUI Modbus Profile Management Profiling Page Step 37 Seconds unsigned 1225 RUI Modbus Profile Management Profiling Page Step 37 Step Type unsigned 1220 RUI Modbus Profile Management Profiling Page Step 37 Target Set Point IEEE Float 1221 RUI Modbus Profile Management Profiling Page Step 37 Wait Event Event 1 unsigned 1230 RUI Modbus Profile Management Profiling Page Step 37 Wait Event Event 2 unsigned 1231 RUI Modbus Profile Management Profiling Page Step 37 Wait For Process IEEE Float 1232 RUI Modbus Profile Management Profiling Page Step 38 End Type unsigned 1256 RUI Modbus Profile Management Profiling Pa
147. 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 replace ment repair or refund of purchase price and parts which upon examination prove to be defective within the warranty period specified This warranty does not apply to damage resulting from transportation altera tion misuse or abuse Return Material Authorization RMA 1 Call Watlow Customer Service 507 454 5300 for a Return Material Authorization RMA number before returning any item for repair If you do not know why the product failed contact an Application Engineer or Product Manager All RMA s require e Ship to address Bill to address Contact name Phone number Method of return shipment Your P O number Detailed description of the problem Any special instructions Name and phone number of person returning the product 2 Prior approval and an RMA number from the Customer Service Department is required when returning any product for credit repair or evalua tion Make sure the RMA number is on the outside of the carton and on all paperwork returned Ship on a Freight Prepaid basis 9 After we receive your return we will examine it and try to verify the reason for returning it 4 Incases of manufacturing defect we will enter a repair order replacement order or issue credit for material retu
148. nother interface Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 47 Chapter 7 Profiling Page Modbus less 40 001 offset read write Set tings Parameter name Appears If Description Range Integer values for Mod bus in parentheses gt g 2 cej lt Bg an c Em EX s Hn ae C Em Un IL A ea ac E m 3 nr Step Type Parameters Hours Select the hours plus Minutes and Seconds for a timed step Step Type Parameters Minutes Select the minutes plus Hours and Seconds for a timed step Step Type Parameters Seconds Select the seconds plus Hours and Minutes for a timed step Step Type Parameters Rate Select the rate for ramping in de grees or units per minute Step Type Parameters Wait For Process Value The step will wait until the process value is equal to the Wait for Pro cess Value Once the Wait For Pro cess is satisfied this step ends Step Type Parameters Wait Event 1 and 2 Select the event state that must be satisfied during this step Digital input 5 provides the state of Event 1 and digital input 6 provides the state of Event 2 Step Type Parameters Jump Step Select a step to jump to Step Type Parameters Jump Count Set the number of jumps A value of 0 creates an infinite loop Loops can be nested four deep
149. nsigned 540 RUI Modbus Profile Management Profiling Page Step 3 Target Set Point IEEE Float 541 RUI Modbus Watlow EZ ZONE ST e 74 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 3 Wait Event Event 1 unsigned 550 RUI Modbus Profile Management Profiling Page Step 3 Wait Event Event 2 unsigned 551 RUI Modbus Profile Management Profiling Page Step 3 Wait For Process IEEE Float 552 RUI Modbus Profile Management Profiling Page Step 4 End Type unsigned 576 RUI Modbus Profile Management Profiling Page Step 4 Event Output 1 unsigned 568 RUI Modbus Profile Management Profiling Page Step 4 Event Output 2 unsigned 569 RUI Modbus Profile Management Profiling Page Step 4 Hours unsigned 563 RUI Modbus Profile Management Profiling Page Step 4 Jump Count unsigned 575 RUI Modbus Profile Management Profiling Page Step 4 Jump Step unsigned 574 RUI Modbus Profile Management Profiling Page Step 4 Minutes unsigned 564 RUI Modbus Profile Management Profiling Page Step 4 Rate IEEE Float 566 RUI Modbus Profile Management Profiling Page Step 4 Seconds unsigned 565 RUI Modbus Profile Management Profiling Page Step 4 Step Type unsigned 560 RUI
150. o the contactor coil The other side of the Contactor Contactor Coil 2 Coil 1 ae and to electrical sensors or pe coil is connected to terminal 99 gt gt ripheral devices Failure to do so IE i a O may result in damage to equip ment and property and or injury isa a AUS DEI Proeesi UU umm eee 0 to 10V dc neutral ho 0 to 50mV dc fuse mut ZB ARESDS Process RR UNUS RE Ten yaa 0 to 10V dc M Process O E 0 to 50mV do 00020mA i 1 4 DonOoodATrPrFPaoRK ut 1 mut BRE AG SS 29038k5 a JO Ole Process au 0 0009 2 wire s Ns 0 to 20 mA RIB input 4 me 2 OAL ES AG 20 355 WATLOW Has go Swie sy s2 aa as RTD T RTD Sy Input 2 Input 1 Integrated J o fs gt ene ee anto Loop 3 wire mar NN ERE with limit RTD s 3 E Input 2 TUA puse Coil 1 SSS J LIT uit Input 1 common Output 3 DO ARS E Output 3 CE MUN URN
151. odbus only Set Point Manager Setup Loop Open Loop High Set Point IEEE Float 201 Modbus only Set Point Manager Setup Loop Open Loop Low Set Point IEEE Float 199 Modbus only Set Point Manager Home Page Open Loop Set Point IEEE Float 28 RUI Modbus Set Point Manager Setup Loop Ramp Action unsigned 215 RUI Modbus Set Point Manager Setup Loop Ramp Rate IEEE Float 219 RUI Modbus Set Point Manager Setup Loop Ramp Scale unsigned 216 RUI Modbus Set Point Manager Operation Monitor Ramp Set Point IEEE Float 217 Modbus only Set Point Manager Setup Loop User Action Failure unsigned 213 Modbus only Status Operation Monitor Alarm 1 State unsigned 29 Modbus only Status Operation Monitor Alarm 2 State unsigned 30 Modbus only Status Operation Monitor Ambient Temperature IEEE Float 34 Modbus only Status Operation Analog Input Analog Input 1 Process Value IEEE Float 19 RUI Modbus Status Operation Monitor Analog Input 2 Process Value IEEE Float 25 RUI Modbus Status Operation Monitor Control Loop Output Power IEEE Float 27 Modbus only Status Operation Current Current Error unsigned 40 RUI Modbus Status Operation Current Current Read IEEE Float 38 RUI Modbus Status Operation Monitor Event 1 Status unsigned 32 Modbus only Status Operation Monitor Event 2 Status unsigned 33 Modbus only Status Operation Monitor Limit State unsigned 31 Modbus only Watlow EZ ZONE ST e 85 o Appendix Specifications Line Voltage Power 100
152. oint Set Point 85 will ramp to the defined end set point both Both 13 215 unsigned rw Hours 39 Minutes 216 unsigned Ramp Action is Minutes 57 rw set to Startup Select the scale of the ramp rate Set Point or both 0 001 to 9 999 000 F or 1 0 219 float Ramp Action is Ramp Rate units rw set to Startup Set the rate for the set point ramp 0 001 to 5 555 000 C Set Point or both Set the time units for the rate with the Ramp Scale parameter Loop 1 999 000 to 9 999 000 F 1 999 000 195 float Closed Loop Low Set Point or units rw Set the minimum value of the closed 1 128 000 to 5 537 000 C loop set point range 1 999 000 to 9 999 000 F 9 999 000 197 float or units rw Set the maximum value of the closed 1 128 000 to 5 537 000 C loop set point range Loop 1 999 to 9 999 203 float Modbus only Closed Loop Active Set Point read only n 1 999 to 9 999 i 201 float Modbus only 1 999 to 9 999 i Modbus only Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Loop Closed Loop High Set Point Open Loop High Set Point Set the maximum value of the open loop set point range Open Loop Low Set Point Set the minimum value of the open loop set point range All temperature parameters through Modbus are in F
153. ol to input 2 Ensure that the limit sensor can represent the likely range of process values Turn sensor backup on or off with Sensor Backup Enable Setup Page Analog Input 1 Low Set Point and High Set Point The controller constrains the set point to a value be tween a set point low limit and a set point high limit Set the closed loop set point limits with Closed Loop Low Set Point and Closed Loop High Set Point Setup Page Loop Menu Set the open loop set point limits with Open Loop Low Set Point and Open Loop High Set Point 8B 5 Setup Page Loop Menu There are two sets of set point low and high limits one for a closed loop set point another for an open loop set point High Limit of selected functional range Range High Range between High Limit of Sensor and Range Low Set Point High Set Point Range must be between Range High and Range Low Set Point des Range Low Range between Low Limit of Sensor and Range High Gas Pressure Low Limit of selected functional range LL Scale High and Scale Low When an analog input is selected as process voltage or process current input you must choose the value of voltage or current to be the low and high ends For example when using a 4 to 20 mA input the scale low value would be 4 00 mA and the scale high value would be 20 00 mA Commonly used scale ranges are 0 to 20 mA 4 to 20 mA 0 to 5V 1 to 5V and 0 to 10V You can create a sca
154. on 38 Lockout Menu 24 54 66 Lock Operations Page 54 66 Lock Profiling Page 54 66 Logic 43 Loop Menu 33 lower display 23 Low Power Scale 42 low range 60 low scale 60 Low Set Point Alarm 34 64 Current 35 65 Limit 31 manual open loop control 61 Manual Control Indicator Light 61 Manual Power 41 manual tuning 57 Message Action 28 29 Minutes 48 Modbus registers 71 85 profiling 50 51 model numbers 89 Monitor Current File 52 Monitor Menu 31 Monitor Profile State 52 mounting and unmounting from a DIN rail 11 mounting the Remote User Interface RUI 11 N National Electric NEC 6 7 navigating Factory Page 53 Operations Page 30 pages and menus 29 Profiling Page 46 Setup Page 37 network wiring 20 Non Volatile Save 21 Number of Zones 24 O Offset 44 on off control 61 Open Loop High Set Point 41 60 Open Loop Low Set Point 41 60 Open Loop Set Point 34 Operations Page 30 54 ordering information accessory kit 87 EZ ZONE ST 89 replacement base 87 replacement heat sink 88 replacement solid state relays SSRs 88 outputs 3 output configuration 60 output events 3 Output Function 39 Output Menu 42 Output State 31 P Parameter 1 to 20 54 Parity 21 process alarms 64 Process Value 31 Process Value Active 32 Profile 47 Profile Action Request 28 29 35 52 Profile Start 28 29 35 52 Profile Start Type 52 Profile Status Menu 35 Profile Type 45 profiling 67 Profiling Page 46
155. on switches on when the process temperature rises above the set point plus the hysteresis ic Hysteresis The cooling action switches on at startup The cooling action switches off when the process temperature drops below the set point Process Temperature Set Point Temperature Time Proportional Control Some processes need to maintain a temperature or process value closer to the set point than on off con trol can provide Proportional control provides closer control by adjusting the output when the temperature or process value is within a proportional band When the value is in the band the controller adjusts the out put based on how close the process value is to the set point The closer the process value is to the set point the lower the output power This is similar to backing off on the gas pedal of a car as you approach a stop sign It keeps the temperature or process value from swing ing as widely as it would with simple on off control However when the system settles down the tempera ture or process value tends to droop short of the set point With proportional control the output power level equals set point minus process value divided by the proportional band value In an application with one output assigned to heat ing and another assigned to cooling each will have a separate proportional parameter The heating parame ter takes effect when the process temperature is lower
156. one to activate the alarm output function again An active message such as an alarm message will cause the display to toggle between the normal set tings and the active message in the upper display and in the lower display Push the Advance Key to display in the upper display and the message source in the lower display Use the Up O and Down Q keys to scroll through possible responses such as Clear or Silence _S L Then push the Advance or Infinity key to execute the action See the Keys and Displays chapter and the Home Page chapter for more details Turn alarm silencing on or off with Silencing Setup Page Alarm Menu Alarm Blocking Alarm blocking allows a system to warm up after it has been started up With alarm blocking on an alarm is not triggered when the process temperature is ini tially lower than the alarm low set point or higher than the alarm high set point The process tempera ture has to enter the normal operating range beyond the hysteresis zone to activate the alarm function If the controller has an output that is functioning as a deviation alarm the alarm is blocked when the set point is changed until the process value re enters the normal operating range Turn alarm blocking on or off with Blocking Setup Page Alarm Menu Current Sensing Open heater circuit detection Current Error Operations Page Current Menu detects an open load circuit if no current is flowing through
157. ontroller s output load No adjustments of the output power level occur based on temperature or closed loop set point in this mode In auto mode the controller monitors the input to determine if closed loop control is possible The con troller checks to make certain a functioning sensor is providing a valid input signal If a valid input signal is present the controller will perform closed loop con trol Closed loop control uses a process sensor to deter mine the difference between the process value and the closed loop set point Then the controller applies pow er to a control output load to reduce that difference If a valid input signal is not present the control ler will indicate an input error message in the upper display and in the lower display and respond to the failure according to the setting of Input Error Failure FR L You can configure the controller to perform a bumpless transfer b PL 5 switch power to output a preset fixed level PAn or turn the output power off Bumpless transfer will allow the controller to transfer to the manual mode using the last power value calculated in the auto mode if the process had stabilized at a 5 percent output power level for the time interval of Time Integral Operations Page Loop prior to sensor failure and that power level is less than 75 percent Set Point Actual Temperature Gier Break Temperature 100 40 2 minutes Locks in Output P
158. oring feature Detects a shorted or half waving solid state relay an open heater circuit or a failed heater Optional remote user interface RUI Uses one RUI for multiple zones Shallow panel depth allows it to fit in small spaces e Eliminates the costs and complexity of having to bring all controller related wires to the front panel Enables the use of multiple RUIs to improve the system s usability and flexibility Optional Solid state Relay heat sink e Sized and engineered for specific applications e Factory assembled heat sink required for UL listing System diagnostics Provides continuous self monitoring alerts of sys tem trouble to reduce maintenance and service costs Advanced controllability algorithms TRU TUNE meets demanding controllability requirements PC Software EZ ZONE ST Configurator e Wizard style configuration of controller settings Online or offline recipe editing UI is a registered trademark of Underwriter s Laboratories Inc Modbus is a trademark of Schneider Automation Incorporated Watlow EZ ZONE ST e Chapter 1 Overview A Conceptual View of the ST The flexibility of the controller s software and hard ware allows a large range of configurations Acquiring a better understanding of the controller s overall func tionality and capabilities while at the same time plan ning out how the controller can be used will deliver maximum effectiveness in your applica
159. orithm or Cool Algorithm Setup Page is set to PID Heat Algorithm or Cool Algorithm Setup Page is set to PID Heat Algorithm Setup Page is set to PID Heat Algorithm Setup Page is set to On Off Cool Algorithm Setup Page is set to PID Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 5 Operations Page Display Parameter name Description Loop Cool Hysteresis Set the control switching hysteresis for on off control This determines how far into the on region the pro cess value needs to move before the output turns on Loop Time Integral Set the PID integral for the outputs Loop Time Derivative Set the PID derivative time for the heat outputs Loop Dead Band Set the offset to the proportional band With a negative value both heating and cooling outputs are active when the process value is near the set point A positive value keeps heat ing and cooling outputs from fighting each other Loop Open Loop Set Point Set a fixed level of output power when in manual open loop mode Alarm 1 or 2 Low Set Point If Alarm Type Setup Page Alarm Menu is set to process set the process value that will trigger a low alarm deviation set the span of units be low the set point that will trigger a low alarm Alarm 1 or 2 High Set Point If Alar
160. ote Only perform the above procedure when you are sure that all the correct settings are programmed into the controller Sav ing the settings overwrites any previously saved collection of settings Be sure to document all the controller settings Programming the Home Page Watlow s patented user defined menu system improves operational efficiency The user defined Home Page provides you with a shortcut to monitor or change the parameter values that you use most often You can create your own Home Page with as many as 20 of the active parameters When a parameter nor mally located in the Setup Page or Operations Page is placed in the Home Page it is accessible through both If you change a parameter in the Home Page it is au tomatically changed in its original page If you change a parameter in its original page it is automatically changed in the Home Page The default parameters will automatically appear in the Home Page P1 will display the Active Process Value in the upper display and P2 will display the Active Setpoint in the lower display Press the arrow keys to change the set point Press the Advance Key amp to display the P3 value in the upper display and the P3 prompt in the lower display Press the Advance again to display P4 and so on Change the list of parameters in the Home Page from the Custom Menu Factory Page Tuning the PID Parameters Autotuning Autotuning without TRU TUNE enabled calculates t
161. owed by A L or B followed by A B or F followed by L H 1 2 or 3 followed by any letter or number followed by A H or J followed by A B or C followed by any three numbers or letters Classification Temperature control Installation Category Il Pollution degree 2 Rated Voltage and Frequency Control 100 to 240V ac 50 60 Hz or 24 to 28V ac 50 60 Hz or dc Load 24 to 240V ac 50 60 Hz or 48 to 600V ac 50 60 Hz Rated Power Consumption Control 12VA Control with Contactor 50 VA Control with external contactor 140 VA Load Current 25 or 40 A depending upon heatsink see derating curve Meets the essential requirements of the following European Union Directives by using the relevant standards show below to indi cate compliance 89 336 EEC Electromagnetic Compatibility Directive EN 61326 1997 A1 1998 A2 2002 EN 61000 4 2 1996 A1 1998 EN 61000 4 3 1997 EN 61000 4 4 1995 EN 61000 4 5 1995 Al 1996 EN 61000 4 6 1996 EN 61000 4 8 1994 A1 2001 EN 61000 4 11 1994 EN 61000 3 2 2000 X ED EN 61000 3 32 1995 A1 1998 Electrical equipment for measurement control and laboratory use EMC requirements Industrial Immunity Class A Emissions Not for use in a Class B environment without additional filtering Electrostatic Discharge Immunity Radiated Field Immunity Electrical Fast Transient Burst Immunity Surge Immunity Conducted Immunity Magnetic Field Immunity Voltage Dips Short Interruptions a
162. ower Vue ce p Eee Output 0 Power Time Input Error Latching Setup Page Analog Input Menu determines the controller s response once a valid input signal returns to the controller If latch ing is on then the controller will continue to indicate an input error until the error is cleared To clear a latched alarm press the Advance Key then the Up Key O If latching is off the controller will automatically clear the input error and return to reading the tem perature If the controller was in the auto mode when the input error occurred it will resume closed loop control If the controller was in manual mode when the error occurred the controller will remain in open loop control Power gt The Manual Control Indicator Light is on when the controller is operating in manual mode You can easily switch between modes if the Control Mode parameter is selected to appear in the Home Page To transfer to manual mode from auto mode press the Advance Key until appears in the lower display The upper display will display for auto mode Use the Up or Down O keys to select PAn The manual set point value will be recalled from the last manual operation To transfer to auto mode from manual mode press the Advance Key until appears in the lower display The upper display will display for manual mode Use the Up or Down Q keys to select QUE o The automatic set point value will be recalled from t
163. ower level read write is in the lower display If Control Mode is set to Off the process value is in the upper display and read only is in the lower display If a sensor failure has occurred Jis in the upper display and the output power level read write is in the lower display Watlow EZ ZONE ST e 28 Chapter 4 Home Page Parameters that Appear Only in the Home Page Setting Parameter Name Description Message Action View Down Key and clear Up Key active alarm and error mes sages Profile Start Select a profile or step number that will be affected by Profile Action Profile Action Request Select the action to apply to the profile 1 to 4 or step selected in Profile Start nont Pc of Start a Profile 77 St EP Start a Step 89 Default Error Input 1 Error Input 2 Alarm 1 Alarm 2 Limit Tuning Ramping Device Error Current Error Heater Error No Action 61 Modbus less 40 001 offset read write Appears If an alarm or error mes sage is ac tive the control ler includes profiling the control ler includes profiling Pause 146 r ESU Resume 147 End End 148 Navigating the Pages and Menus Home Page Communications Menu Process Value 2g34J 6 bus Set Point 12340 cU i Hold both keys for 3 seconds Home Page Process Value 12 34 GO RUI Page Analog Input Menu Set Point iP
164. p 18 Event Output 1 unsigned 848 RUI Modbus Watlow EZ ZONE ST e 78 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 18 Event Output 2 unsigned 849 RUI Modbus Profile Management Profiling Page Step 18 Hours unsigned 843 RUI Modbus Profile Management Profiling Page Step 18 Jump Count unsigned 855 RUI Modbus Profile Management Profiling Page Step 18 Jump Step unsigned 854 RUI Modbus Profile Management Profiling Page Step 18 Minutes unsigned 844 RUI Modbus Profile Management Profiling Page Step 18 Rate IEEE Float 846 RUI Modbus Profile Management Profiling Page Step 18 Seconds unsigned 845 RUI Modbus Profile Management Profiling Page Step 18 Step Type unsigned 840 RUI Modbus Profile Management Profiling Page Step 18 Target Set Point IEEE Float 841 RUI Modbus Profile Management Profiling Page Step 18 Wait Event Event 1 unsigned 850 RUI Modbus Profile Management Profiling Page Step 18 Wait Event Event 2 unsigned 851 RUI Modbus Profile Management Profiling Page Step 18 Wait For Process IEEE Float 852 RUI Modbus Profile Management Profiling Page Step 19 End Type unsigned 876 RUI Modbus Profile Management Profiling Page Step 19
165. play the firmware build number Diagnostics Menu 0 to 65 636 Serial Number Display the serial number 12 un signed rw 14 un signed Diagnostics Menu 0 to 65 636 Date of Manufacture Display the date code rw non Don t Load 61 Don t Load 16 un User Set 1 101 signed User Set 2 102 rw FCEY Factory Default 31 pon E Don t Save 61 Don t Load 17 un GEE I User Set 1 101 signed SEE User Set 2 102 rw 0 to 2 147 483 647 0 unsigned read only Diagnostics Menu User Restore Set Replace all of the controller s settings with another set Diagnostics Menu User Save Set Save all of the controller s settings to the selected set Diagnostics Menu Hardware ID Display the hardware ID Diagnostics Menu OK 138 18 un Status Light Fail 32 signed read only L I e 5 lt lt i F CAL CAL Calibration Menu Calibration 1 Calibration 2 Calibration Menu 309 1 float Electrical Measurement 311 2 float Read the raw electrical value for this read only input in the units corresponding to the Sensor Type Setup Page Analog Input Menu setting Calibration Menu 2 147 483 647 3 4E 38 to Electrical Offset 2 147 483 647 3 4E 38 Change this value to calibrate the low end of the input range Calibration Menu 2 147 483 647 3 4E 38 to Electrical Slope 2 147 483 647 3 4E 38 Adjust this value to calibrate the slope of the input value Note Some values will be round
166. ppears If less 40 001 offset read write 1 999 000 to 9 999 000 F or units 1 128 000 to 5 537 000 C a file is running 297 float read only 1 999 000 to 9 999 000 F or units 1 128 000 to 5 537 000 C 0 to 9 999 000 seconds 303 float read only oF F Off 62 32 1 unsigned a file is running on On 63 33 2 unsigned read only 0 to 9 999 305 unsigned read only Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 36 e Chapter 5 Operations Page Chapter 6 Setup Page To go to the Setup Page from the Home Page press the submenus both the Up O and Down keys for six seconds Press the Advance Key to move through the pa will appear in the upper display and SEE rameters of the submenu will appear in the lower display Press the Infinity Key to move backwards Press the Up or Down Q key to move through through the levels parameter to submenu sub the menus menu to menu menu to Home Page Press the Advance Key to move to a submenu Press and hold the Infinity Key for two seconds e Press the Up O or Down Q key to move through to return to the Home Page Home Page Setup Page Par
167. r Pro filing Page in the Lockout Menu you must go to the Lock Operations Page parameter or Lock Pro filing Page parameter in the Lockout Menu in the Factory Page To go to the Factory Page from the Home Page press both the Advance and Infinity keys for six seconds will appear in the Upper Display and will appear in the Lower Display e Press the Up O or Down Q key to move to the Lockout Menu lof Press the Advance Key to select a parameter e Press the Up or Down key to change the parameter value The value you select 1 2 or 3 will determine the position of the Operations Page or Profiling Pages in the Lockout Menu in the RUI Page Press the Infinity Key to move backwards through the levels parameter to menu menu to Home Page Press and hold the Infinity Key amp for two seconds to return to the Home Page Example 1 The operator wants to read all the menus and not al low any parameters to be changed In the RUI Page Lockout Menu set Read Lock to 5 and Set Lock to 0 Example 2 The operator wants to read and write to the Home Page and Profiling Page and lock all other pages and menus In the RUI Page Lockout Menu set Read Lock to 2 and Set Lock to 2 In the Factory Page Lockout Menu set Lock Op erations Page to 3 and Lock Profiling Page to 2 Example 3 The operator wants to read the Operations Page Setup Page Profiling Page Diagnostics Menu Lock Menu Calibrat
168. riable toward the set point Enter a set point and heat and cool power limits that are within the safe operating limits of your system Inputs Calibration Offset Calibration offset allows a device to compensate for an inaccurate sensor lead resistance or other factors that affect the input value A positive offset increases the input value and a negative offset decreases the input value The input offset value can be viewed or changed with Calibration Offset Operations Page Ana log Input Menu Negative Calibration Offset will compensate for the difference between the Sensor Reading and the Actual Temperature d Temperature Reading from Sensor Temperature Actual Process Temperature Time Calibration To calibrate an analog input you will need to provide two electrical signals or resistance loads near the ex tremes of the range that the application is likely to utilize See recommended values below wiamps noma 20 000mA Follow these steps for a thermocouple or pro cess input 1 Apply the low source signal to the input you are calibrating Measure the signal to ensure it is ac curate 2 Read the value of Electrical Measurement Factory Page Calibration Menu for that input 3 Calculate the offset value by subtracting this value from the low source signal 4 Set Electrical Offset Factory Page Cali bration Menu for this input to the offset value 5 Check the
169. rminal and the digital common terminal are refer enced to different voltages and must re main isolated y Watlow EZ ZONE ST Chapter 2 Install and Wire Wiring without a contactor ST _ nN WARNING Use National Electric NEC or other country spe cific standard wiring and safety practices when wiring and con necting this controller to a power source and to electrical sen sors or peripheral devices Failure to do so may result in dam age to equipment and property and or injury or loss of life N WARNING If high voltage is applied to a low voltage control ler irreversible damage will occur CAUTION Always mount the controller as shown with the heat sink fins aligned vertically hot hot fuse fuse Output 1 SSR neutral hot fuse 1 Output 1 SSR Ole EZ ZONE ST y Or Control O Patent Pending e ie Oum Oss es OSTATUS gull OUT 3 ST_L Limit O Qovr 2 ES all A L3 L3 L3 L3 N O Output 3 K3 K3 K3 K3 common Output 3 J3 J3 J3 J3 N C Output 3
170. rned In cases of customer mis use we will provide repair costs and request a purchase order to proceed with the repair work 5 To return products that are not defective goods must be be in new condition in the original boxes and they must be returned within 120 days of receipt A 20 percent restocking charge is applied for all returned stock controls and accessories 6 Ifthe unit is unrepairable you will receive a let ter of explanation and be given the option to have the unit returned to you at your expense or to have us scrap the unit 7 Watlow reserves the right to charge for no trouble found NTF returns The EZ ZONE ST User s Manual is copyrighted by Watlow Winona Inc October 2007 with all rights reserved EZ ZONE ST is covered by U S Patent No 6 005 577 and Patents Pending Table of Contents Chapter 1 Overview 0 cece eee 2 The EZ ZONE ST Provides Total Thermal System Control 2 Features and Benefits oere irene eed deere ie bene ERR a 2 A Conceptual View of the ST 0 0 cc cece cece eee 3 Chapter 2 Install Wire and Set Address 5 LnnperrL EET 6 Installation s pranin RR RRRP ERAS AER RS S 11 Replacing the Solid State Relay 0 0 ccc cece eee eee 12 Setting the Address 0000 e cece eee 21 Chapter 3 Using the Interfaces 0 000000 23 Chapter 4 Home Page 0 0 cece ee eee eee 28 Chapt
171. rol Switch System Output 1 is dedicated to controlling the internal solid state relay Output 2 Digital I O and Current Measurement 0 5 A solid state relay 0 5 A solid state relay with 2 digital i o points 0 5 A solid state relay with current measurement 0 5 A solid state relay with 2 digital i o points and current measurement 5 A mechanical relay form A 5 A mechanical relay form A 2 digital i o points 5 A mechanical relay form A current measurement Q amp O m B i t X 5 A mechanical relay form A 2 digital i o points current measurement Integrated Limit Controller 1 universal input and 2 outputs A None L Limit control module output 3 5 A Form C mech relay out 4 2 A Form A mech relay B Terminal block access to mechanical contactor coil contacts If the limit controller was ordered the contactor will come inter Mechanical Contactor and nally connected to output 4 on the limit module The contactor has Power Supply external contacts available for daisy chaining to other branch circuit components AH No contactor and universal high voltage power supply 100 to 240V ac dc AL No contactor and universal low voltage power supply 24 to 28V ac dc B1 Single pole 40 A Watlow contactor 24V ac power supply B2 Single pole 40 A Watlow contactor 110 120V ac power supply B3 Single pole 40 A Watlow contactor 208 240V ac power supply F1 Dual pole 40 A Watlow contactor 24V ac power supply F2 Dual pol
172. roller Address parameter incorrect Incorrect protocol selected Baud rate incorrect Parity incorrect Wiring error EIA 485 converter issue Incorrect computer or PLC communi cations port ncorrect software setup Termination resistor may be required Controller not tuned correctly Control mode is incorrectly set Control set point is incorrect Check cause of under temperature Clear limit Establish correct limit set point Check cause of over temperature Clear limit Establish correct limit set point Disable ramping feature if not re quired Wait until autotune completes or dis able autotune feature Set digital input to function other than autotune if desired Set output function correctly Set control mode appropriately Open vs Closed Loop Correct output wiring Correct fault in system Set control set point in appropriate control mode and check source of set point remote idle profile closed loop open loop Obtain correct controller model for ap plication Turn on power Replace fuse Reset breaker Close interlock switch Reset limit Correct wiring issue Apply correct voltage check part num ber Set unique addresses on network Match protocol between devices Match baud rate between devices Match parity between devices Correct wiring issue Check settings or replace converter
173. s stabilized watch Heat Power or Cool Power Operations Page Monitor Menu It should be stable 2 At this point the process temperature should also be stable but it will have stabilized before reaching the set point The difference between the set point and actual process value can be eliminated with Integral 5 Start with an Integral value of 6 000 and allow 10 minutes for the process temperature to reach the set point If it has not reduce the setting by half and wait another 10 minutes Continue reduc ing the setting by half every 10 minutes until the process value equals the set point If the process becomes unstable the Integral value is too small Increase the value until the process stabilizes 6 Increase Derivative to 0 1 Then increase the set point by 11 to 17 C Monitor the system s ap proach to the set point If the process value over shoots the set point increase Derivative to 0 2 Increase the set point by 11 to 17 C and watch the approach to the new set point If you increase Derivative too much the approach to the set point will be very sluggish Repeat as necessary until the system rises to the new set point without over shoot or sluggishness For additional information about autotune and PID control see related features in this chapter General Use of TRU TUNE TRU TUNE when enabled can help achieve bet ter process stabilization process variable equals set point by dynamically tuning t
174. sible damage will occur Note Excessive writes to EEPROM over Modbus can cause premature EEPROM failure The EEPROM is rated for 1 000 000 writes See Sav ing Settings to Nonvolatile Memory in Chapter 2 Install and Wire Wiring a Serial EIA 485 Network Do not route network wires with pow er wires Connect network wires in daisy chain fashion when connecting multiple devices in a network A termination resistor may be re quired Place a 120 Q resistor across T R and T R of the last controller on a network EZ ZONE ST ST__ BorF _A_ _ SSSRSSSS Y 7 la power 4 3 d power 4 common EZ ZONE ST ST A A 98 power 4 99 Power 4 orlem 4 CD T R 4 CE T R 4 B5 D6 D5 RUI remote user interface 98 power gg Power cr lj commoh pl T P CE T R Wiring a network of controllers using Watlow s Standard bus and an RUI re mote user interface Only one protocol per port is avail able at a time either Modbus RTU or Standard Bus Note The RUI remote user interface can commun
175. signed 900 RUI Modbus Watlow EZ ZONE ST e 79 Appendix Group Page Menu Name in User s Manual Data Modbus Access Location Type Address RUI Modbus less 40 001 offset Profile Management Profiling Page Step 21 Target Set Point IEEE Float 901 RUI Modbus Profile Management Profiling Page Step 21 Wait Event Event 1 unsigned 910 RUI Modbus Profile Management Profiling Page Step 21 Wait Event Event 2 unsigned 911 RUI Modbus Profile Management Profiling Page Step 21 Wait For Process IEEE Float 912 RUI Modbus Profile Management Profiling Page Step 22 End Type unsigned 936 RUI Modbus Profile Management Profiling Page Step 22 Event Output 1 unsigned 928 RUI Modbus Profile Management Profiling Page Step 22 Event Output 2 unsigned 929 RUI Modbus Profile Management Profiling Page Step 22 Hours unsigned 923 RUI Modbus Profile Management Profiling Page Step 22 Jump Count unsigned 935 RUI Modbus Profile Management Profiling Page Step 22 Jump Step unsigned 934 RUI Modbus Profile Management Profiling Page Step 22 Minutes unsigned 924 RUI Modbus Profile Management Profiling Page Step 22 Rate IEEE Float 926 RUI Modbus Profile Management Profiling Page Step 22 Seconds unsigned 925 RUI Modbus Profile Management Profiling Page Step 22 Step Type unsign
176. solated EIA 485 Modbus serial communications Wiring Termination Touch Safe Terminals Input power and controller output terminals touch safe remov able 4 to 0 34 mm 12 to 22 AWG 7 0 Ib in torque Power load terminals 3 3 to 0 324 mm 6 to 12 AWG STR 90 C 194 F copper conductor only 3 96 Nm 35 Ib in torque Temperature rating for line and lug loads 90 C 194 F Universal Input Thermocouple grounded or ungrounded sensors RTD 2 or 3 wire platinum 100 Q 0 C calibration to DIN curve 0 00385 0 O C Process 0 to 20 mA 100 Q or 0 to 10V dc 20 KQ input im pedance scalable Inverse scaling gt 20 MO input impedance Maximum of 20 Q source resistance 42V 7 dc isolation voltage for input 1 to input 2 Digital Input Update rate 1 Hz Dry contact or dc voltage DC voltage Maximum input 36V at 3 mA Minimum high state 3V at 0 25 mA Maximum low state 2V Current Measurement Nominal operating frequency 50 to 60 Hz Accuracy 15 of displayed value Accuracy range 5 to 50A Operating range 2 to 50A Digital Output Update rate 10 Hz Output voltage 24V current limit 10 mA Input Accuracy Span Ranges Type J 0 to 815 C or 32 to 1500 F Type K 200 to 1370 C or 328 to 2500 F Type T 200 to 400 C or 328 to 750 F Type N 0 to 1300 C or 32 to 2372 F Type E 200 to 800 C or 328 to 1470 F Type C 0 to 2315 C or 32 to 4200 F Type D 0 to 2315 C or 32 to 4200 F Type PTII 0 to 1395
177. t IEEE Float 311 RUI Modbus Analog Input Factory Calibration Input 2 Electrical Slope IEEE Float 77 RUI Modbus Analog Input Setup Analog Input Input 2 Error Latching unsigned 95 RUI Modbus Analog Input Setup Analog Input Input 2 Error Reset unsigned 96 Modbus only Analog Input Setup Analog Input Input 2 Filter Time IEEE Float 83 RUI Modbus Analog Input Setup Analog Input Input 2 Linearization unsigned 71 RUI Modbus Analog Input Setup Analog Input Input 2 Range High IEEE Float 91 RUI Modbus Analog Input Setup Analog Input Input 2 Range Low IEEE Float 89 RUI Modbus Analog Input Setup Analog Input Input 2 RTD Leads unsigned 72 RUI Modbus Analog Input Setup Analog Input Input 2 Scale High IEEE Float 87 RUI Modbus Analog Input Setup Analog Input Input 2 Scale Low IEEE Float 85 RUI Modbus Analog Input Setup Analog Input Input 2 Sensor Type unsigned 70 RUI Modbus Communications See Chapter 2 Address unsigned 313 Modbus only Communications See Chapter 2 Baud unsigned 314 Modbus only Communications See Chapter 2 Non Volatile Save unsigned 317 Modbus only Communications See Chapter 2 Parity unsigned 315 Modbus only Control Loop Setup Loop Autotune Aggressiveness unsigned 259 RUI Modbus Control Loop Operation Loop Autotune Request unsigned 262 RUI Modbus Control Loop Operation Loop Autotune Set Point IEEE Float 260 RUI Modbus Control Loop Operation Loop Control Mode unsigned 221 RUI Modbus Control Loop
178. t Point 85 Both 13 Off 62 On 63 Modbus less 40 001 offset read write 112 1 unsigned 128 2 unsigned rw 101 1 float 117 2 float rw 104 1 unsigned 120 2 unsigned rw 103 1 unsigned 119 2 unsigned rw 106 1 unsigned 122 2 unsigned rw 107 1 unsigned 123 2 unsigned rw 105 1 unsigned 121 2 unsigned rw Appears If Off 62 High 37 Low 53 Both 13 No 59 Yes 106 NOTE To use the current sensing feature Time Base Setup Page Output Menu must be set to 0 7 seconds or more the controller includes a limit Vote Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 6 Setup Page Parameter Name Description Current Detect Threshold For factory adjustment only Current Offset Calibrate the current reading with an offset value Fun SEE Function Key EZ Key Menu Function EZ Key Digital Input Function Program the EZ Key to trigger an action Function EZ Key Instance Select which instance the EZ Key will affect If only one instance is avail able any selection will affect it Global Display Units Select which units will be displayed
179. tal Input Function param eter Or press the Infinity Key once to return to the submenu twice to return to the main menu or three times to return to the Home Page Using EZ Zone Configurator Software 1 Set the communications protocol to Standard Bus Make the necessary physical connections between the personal computer and the EZ ZONE ST via the EIA485 port Run the software and allow it to connect to the controller by directing it or allowing it to find the appropriate communications port 2 After the software connects to the controller look on the left side of your screen under the Parameters Menus for Function Key under Setup Click on the plus sign to reveal the Function Key 1 submenu 3 Click on Function Key 1 then select a Digital Input Function and a Function Instance If you want to start and stop a profile with the EZ Key select Profile Start Stop and the number of the profile that you want the EZ Key to control Parameter Menus Parameters Setup Function Key 1 E2 Zore ST P 3 E Setup Digital Input Function Pare erry E Analog input Function Instance it Digtal 1 0 amp Limit tl Control Loop Dupu m Alam Current Function Key Function Key 1 Watlow EZ ZONE ST e 26 Chapter 3 Remote User Interface RUI Indicator Lights on the Controller Case Limit Indicates that the controlleris is DS in a limit state Output 3 Indicates
180. tative Watlow EZ ZONE ST 05 5 Appendix How to Reach Us Corporate Headquarters Watlow Electric Manufacturing Company 12001 Lackland Road St Louis MO 63146 Sales 1 800 WATLOW2 Manufacturing Support 1 800 4WATLOW Email info watlow com Website www watlow com From outside the USA and Canada Tel 1 314 878 4600 Fax 1 314 878 6814 Latin America Watlow de M xico S A de C V Av Fundici n No 5 Col Parques Industriales Quer taro Qro CP 76130 Mexico Tel 52 442 217 6235 Fax 52 442 217 6403 Europe Watlow France SARL Immeuble Somag 16 Rue Amp re 95307 Cergy Pontoise CEDEX France Tel 33 0 1 30 73 24 25 Fax 33 0 1 30 73 28 75 Email info watlow fr Website www watlow fr Watlow GmbH Postfach 11 65 Lauchwasenstr 1 D 76709 Kronau Germany Tel 49 0 7253 9400 0 Fax 49 0 7253 9400 900 Email info watlow de Website www watlow de Watlow Italy S r l Viale Italia 52 54 20094 Corsico MI Italy Tel 39 024588841 Fax 39 0245869954 Email italyinfo watlow com Website www watlow it Watlow Ib rica S L U CME Avda de la V a L ctea s n Oficina 24 28830 San Fernando de Henares Madrid Spain Tel 34 91 675 1292 Fax 34 91 648 7380 Email info watlow es Website www watlow es Watlow Storgatan 24 302 43 Halmstad Sweden Tel 46 0 35 27 11 66 Fax 46 0 35 27 11 67 Email info watlow se Website www watlow se Watlow
181. the EZ Key to control Parameter Menus EZ Zone 5T E Setup E Analog input Digital 1 0 SI Lini Parameters Setup Function Key 1 Digital Input Function SWerme Start Stop Function Instance 1 Control oop E Output 31 Alam 3 Current Function Key Function Key 1 to The user can write to the selected level and all lower levels default 5 Security Levels 1 2 3 4 Home Page 1 Operations Page 1 or3 default Setup Page 4 Profiling Page 1 or 3 default Factory Page Menus Custom Menu 5 Lockout Menu 0 Diagnostic Menu 0 Calibration Menu 5 Bars indicate page and menu access by security level The following examples show how the Lockout Menu parameters may be used in applications 1 You can lock out access to the Operations Page but allow an operator access to the Profile Menu by changing the default Profile Page and Operations Page security levels Change Lock Operations Page to 3 and Lock Profiling Page to 2 If Set Lockout Security is set to 2 or higher and the Read Lockout Security is set to 2 the Profiling Page and Home Pages can be accessed and all writable parameters can be writ ten to Pages with security levels greater than 2 will be locked out unaccessible 2 If Set Lockout Security 5L of is set to 0 and Read Lockout Security is set to 5 all pages Using Lockout to Secure Settings will be accessible however
182. the current transformer when the output is active and the load is supposed to be on Shorted heater circuit detection Current Error detects a shorted load circuit if current is flowing through the current transformer when the output is inactive and the load is supposed to be off Set the current detect set points with High Set Point and Low Set Point Operations Page Current Menu View the current level and most recent faults with Read Current Error Operations Page Cur rent Menu and Heater Error Operations Page Current Menu Programming the EZ Key You can program the EZ Key either in the Setup Menu or with configuration software such as EZ ZONE Configurator using a personal computer The following examples show how to program the EZ Key to start and stop a profile ng keys and display To go to the Setup Page from the Home Page press both the Up O and Down Q keys for six sec onds will appear in the upper display and will appear in the lower display 2 Press the Up Key until appears in the upper display and will appear in the lower display 3 Press the Advance Key until Digital Input Level appears in the lower display Use an ar row key to specify the state of the key high or low when the controller is powered up Functions will toggle with each press of the EZ Key such as Profile Start Stop 4 Press the Advance Key The lower display will show Digital Function dF n Press the Up or
183. tion It is useful to think of the controller in three parts inputs procedures and outputs Information flows from an input to a procedure to an output when the controller is properly configured A single ST control ler can carry out several procedures at the same time for instance closed loop control monitoring for several different alarm situations and operating switched de vices such as lights and motors Each process needs to be thought out carefully and the controller s inputs procedures and outputs set up properly Inputs The inputs provide the information that any given programmed procedure can act upon In a simple form this information may come from an operator pushing a button or as part of a more complex procedure it may represent a remote set point being received from another controller Each analog input typically uses a thermocouple or RTD to read the temperature of something It can also read volts current or resistance allowing it to use various devices to read humidity air pressure operator inputs and others values The settings in the Analog Input Menu Setup Page for each analog input must be configured to match the device connected to that input Each digital input reads whether a device is ac tive or inactive A controller with digital input output hardware includes two sets of terminals each of which can be used as either an input or an output Each pair of terminals must be configured to function
184. tion Menu and Custom Men s Set Lockout Security SL of determines which pa The operator also wants to read and write to the rameters within accessible pages can be written Home Page Watlow EZ ZONE ST e 66 o Chapter 9 Features In the Factory Page Lockout Menu set Read Lock out Security to 1 and Set Lockout Security to 5 In the Factory Page Lockout Menu set Lock Op erations Page to 2 and Lock Profiling Page to 3 Profiling With profiling you can program changes in the process value based on time intervals and events Set point changes can be ramped Event outputs can be pro grammed to turn on or off during the profile Profiling segments can be looped using Jump Step and Jump Count steps Profiling Page Step Type Profiling can be used to ramp to a specified process value and guarantee that the process value is main tained for a specified period of time Forty profiling steps can be divided between as many as four individual profiles that can be run paused and stopped as needed Create and edit profiles with the parameters in the Profiling Page Monitor run stop and pause profiles with the parameters in the Profile Status Menu Operations Page Watlow EZ ZONE ST e 67 Chapter 9 Features 1 0 Chapter 10 Appendix Troubleshooting Alarm will not clear or reset with keypad or digital input Alarm won t clear or reset Alarm won t occur Alarm will not activate output Alarm state cannot
185. to 240V ac 10 15 percent 85 264V ac 50 60 Hz 5 percent 24Vz ac dc 10 15 percent 50 60Hz 5 percent 12VA maximum power consumption without mechanical contac tor in system 50VA maximum power consumption with mechanical contactor in system 140VA maximum power consumption with external contactor Data retention upon power failure via nonvolatile memory Environment See Derating Curves in Declaration of Conformity 18 to 70 C 0 to 158 F operating temperature 40 to 85 C 40 to 185 F storage temperature 0 to 90 percent RH non condensing Accuracy Calibration accuracy and sensor conformity 0 1 percent of span 1 C the calibrated ambient temperature and rated line voltage Calibration ambient temperature 25 C 3 C 77 F x5 F Accuracy span 540 C 1000 F minimum Temperature stability 0 1 C C 0 1 F F rise in ambient maximum Agency Approvals UL 508 file E102269 cULus CE IP66 NEMA 4X RUD RoHS W E E E Product is UL recognized when purchased as components Prod uct is UL listed when purchased as a complete assembly CSA approved C22 2 14 file 158031 Limit version features FM approval Controller Microprocessor based user selectable control modes PID module Single universal input 2 outputs Limit module Single universal input 2 outputs 2 additional digital input outputs shared between PID and limit functions Control sampling rates input 10 Hz outputs 10 Hz I
186. tput Output Output Output Output Time OutputLow Output High on Submenu Function Function Control Base Power Scale Power Scale vo on Instance vo Output 2 amp 3 R Submenus Same as above se RLPa eo 1o Y 7 LSEt RLP e REJIe RScje A50 Rhgle RLge Rsdie ALAO Ablo A5 Je RdSPIe Alarm Menu Alarm 1 Alarm Type Alarm Alarm Alarm Alarm Logic Alarm Sides Alarm Alarm Alarm Alarm on Submenu Source Instance Hysteresis Latching Blocking Silencing Display vo on Source vo Alarm 2 R Submenu Same as above 5Se CUrc o Y SEtje C5dle CUc e CLEO Cgte2 CoF5 e Current Surrent Sides Current Current Limit Current Current Menu Reading Enable Detect Offset Enabl Threshold Yo zx Tu NOTE Some of these menus and pa Re F ako 4 rameters may not appear depending SELIe _dFnje gt F Si on the controller s options See model uu number information in the Appendix for 25 more information noL bL SEtje C Fle RCLFIe PESgPIe ISE 95gle Global Menu Display Units AC Line Profile Type Guaranteed Guaranteed Q Frequency Soak Enable Soak Devia vo tion Watlow EZ ZONE ST e 37 Chapter 6 Setup Page Parameter Name Range Default Modbus Appears If Description Integer values for Modbus in less 40 001 offset parenthesis read write Lo 7 g EE B Analog Input Menu Analog Input 1 Analog Input 2 Analog input 2 appears it ST L Input 1 or 2 Off 62 Sensor T
187. triggered by an event state Loop Heat Proportional Band Set the proportional band for the heat outputs Loop Heat Hysteresis Set the control switching hysteresis for on off control This determines how far into the on region the pro cess value needs to move before the output turns on Loop Cool Proportional Band Set the proportional band for the cool outputs Default Modbus less 40 001 offset read write Off 62 263 unsigned Waiting for Cross 1 Pos 119 read only Waiting for Cross 1 Neg 120 Waiting for Cross 2 Pos 121 Waiting for Cross 2 Neg 122 Waiting for Cross 3 Pos 113 Waiting for Cross 3 Neg 150 Measuring Max Peak 151 Measuring Min Peak 152 Calculating 153 Complete 18 Timeout 118 Off 62 221 unsigned Hu E o Auto 10 rw P188 Manual 54 50 0 to 200 0 260 float rw No 59 262 unsigned YES Yes 106 rw Low Set Point to High Set Point Setup Page 21 float Low Set Point to High 207 float Set Point Setup Page i rw 0 001 to 9 999 000 F or 232 float units i rw 0 001 to 5 555 000 C 0 001 to 9 999 000 F or 234 float units i rw 0 001 to 5 555 000 C 0 001 to 9 999 000 F or 238 float units rw 0 001 to 5 555 000 C Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Appears If Modbus only Heat Alg
188. ull values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 35 e Chapter 5 Operations Page Parameter name Description Profile Status Target Set Point View the target set point of the cur rent step Profile Status Active Set Point Display the current set point even if the profile is ramping Profile Status Step Time Remaining View the time remaining for the cur rent step Step is displayed in seconds If the time exceeds 9 999 seconds the display will show 9 999 and remain there while the control continues to decrement internally Once the remaining time is equal to or less than 9 999 the display will repre sent the actual seconds remaining As an example if a three hour soak time is currently being monitored the first value displayed will be 9 999 and the display will remain at 9 999 until the remaining time is approximately equal to 2 hours and 46 minutes At this point the display will track the actual seconds remaining Profile Status Event Output 1 or 2 View the event output states of the current step Profile Status Jump Count Remaining View the jump counts remaining for the current loop In a profile with nested loops this may not indicate the actual jump counts remaining Default Modbus A
189. ve message such as an alarm message will cause the display to toggle between the normal set tings and the active message in the upper display and in the lower display Watlow EZ ZONE ST e 64 Chapter 9 Features Push the Advance Key to display in the upper display and the message source in the lower display Use the Up O and Down Q keys to scroll through possible responses such as Clear or Silence S L Then push the Advance or Infinity key to execute the action See the Keys and Displays chapter and the Home Page chapter for more details An alarm that is not latched self clearing will de activate automatically when the alarm condition has passed Turn alarm latching on or off with Latching Setup Page Alarm Menu The alarm state begins when the temperature A reaches the Alarm High Set Point Alarm High Set Point X Alarm Hysteresis Normal Operating Range The alarm state continues until the temperature drops to the Alarm High Set Point minus the hysteresis A latching alarm could be turned off by A the operator at this point A non Sar Low latching alarm would turn off Set Point Temperature Process Temperature automatically Time Alarm Silencing If alarm silencing is on the operator can disable the alarm output while the controller is in an alarm state The process value or temperature has to enter the normal operating range beyond the hysteresis z
190. vent 1 unsigned 810 RUI Modbus Profile Management Profiling Page Step 16 Wait Event Event 2 unsigned 811 RUI Modbus Profile Management Profiling Page Step 16 Wait For Process IEEE Float 812 RUI Modbus Profile Management Profiling Page Step 17 End Type unsigned 836 RUI Modbus Profile Management Profiling Page Step 17 Event Output 1 unsigned 828 RUI Modbus Profile Management Profiling Page Step 17 Event Output 2 unsigned 829 RUI Modbus Profile Management Profiling Page Step 17 Hours unsigned 823 RUI Modbus Profile Management Profiling Page Step 17 Jump Count unsigned 835 RUI Modbus Profile Management Profiling Page Step 17 Jump Step unsigned 834 RUI Modbus Profile Management Profiling Page Step 17 Minutes unsigned 824 RUI Modbus Profile Management Profiling Page Step 17 Rate IEEE Float 826 RUI Modbus Profile Management Profiling Page Step 17 Seconds unsigned 825 RUI Modbus Profile Management Profiling Page Step 17 Step Type unsigned 820 RUI Modbus Profile Management Profiling Page Step 17 Target Set Point IEEE Float 821 RUI Modbus Profile Management Profiling Page Step 17 Wait Event Event 1 unsigned 830 RUI Modbus Profile Management Profiling Page Step 17 Wait Event Event 2 unsigned 831 RUI Modbus Profile Management Profiling Page Step 17 Wait For Process IEEE Float 832 RUI Modbus Profile Management Profiling Page Step 18 End Type unsigned 856 RUI Modbus Profile Management Profiling Page Ste
191. w Appears If the controller includes a limit STIL Modbus only WARNING When the controller is powered up the outputs may turn on Direction is set to Output Direction is set to Output Direction is set to Input Voltage or Input Dry Contact Direction is set to Input Voltage or Input Dry Contact Vote Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST e 39 e Chapter 6 Setup Page Parameter Name Description Digital Input 5 or 6 Function Instance Select which instance of the Event Function will be triggered by a true state menu appears if ST_L ___ Limit Sides Select which side or sides of the pro cess value will be monitored Limit Hysteresis Set the hysteresis for the limit func tion This determines how far into the safe range the process value must move before the limit turns the out put back on Limit Integrate In a limit state the controller will turn off the outputs terminate an ac tive profile and freeze PID and TRU TUNE calculations Heat Algorithm Set the heat control method Cool Algorithm Set the cool control method TRU TUNE Enable Enable or disable the TRU TUNE
192. ype Thermocouple 95 Set the analog sensor type to match Millivolts 56 the device wired to this input Volts de 104 Milliamps de 112 RTD 100 Q 113 RTD 1 000 Q 114 H K 48 cas C a N 68 D 23 R 80 EQO SjS 84 F 30 EJT 93 J 46 100 0 to 100 0 42 1 unsigned 70 2 unsigned rw NOTE There is no open sensor detection for process inputs Input 1 or 2 Linearization Set the linearization to match the thermocouple wired to this input 43 1 unsigned Sensor Type is 71 2 unsigned set to Thermo rw couple Input 1 or 2 RTD Leads Set to match the number of leads on the RTD wired to this input Input 1 or 2 Scale Low Set the low scale for process inputs This value in millivolts volts or mil liamps will correspond to the Range Low value displayed by the controller 44 1 unsigned Sensor Type is 72 2 unsigned set to RTD 100 0 or RTD 1 000 Q rw 57 1 float Sensor Type 85 2 float is set to Millivolts Volts or Milliamps mn Clr 9 rw 59 1 float Sensor Type 87 2 float is set to Millivolts Volts or Milliamps rw Input 1 or 2 Range Low Set the low range for the displayed process input units 1 999 000 to 9 999 000 61 1 float Sensor Type 89 2 float is set to Millivolts Volts or Milliamps rw Input 1 or 2 Range High Set the high range for the displayed process input units 1 999 000 to 9 999 000 63
193. ysteresis Ramp Rate Current Read TRU TUNE Enable Idle Set Point Custom Menu Profile Start Profile Action Limit Low Set Point Limit High Set Point Limit Hysteresis Cool Proportional Band Default Modbus less 40 001 offset read write Active Process Value 1 Top Display Active Set Point 2 Bottom Dis play Action Prompt 3 User Control Mode 4 Heat Power 5 Cool Power 6 Autotune 7 Idle Set Point 8 Profile Start 9 Profile Action 10 None 11 to 20 more than one in stance Note Some values will be rounded off to fit in the four character display Full values can be read with Modbus All temperature parameters through Modbus are in F Low register numbers contain the two lower bytes high register numbers contain the two higher bytes of the four byte floating point value Watlow EZ ZONE ST Chapter 8 Factory Page Display Parameter Name Range Default Modbus Description Integer values for Modbus in less 40 001 parentheses offset read write 2 unsigned read only Diagnostics Menu Software ID Display the firmware ID number 0 to 65 636 0 to 65 636 4 unsigned read only Diagnostics Menu Software Release Display the firmware revision Diagnostics Menu Software Prototype Display the firmware prototype ver sion Diagnostics Menu 0 to 65 636 6 unsigned read only 0 to 65 636 8 unsigned Software Build read only Dis
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