Watlow Series 988LF User Manual

Series 988LF1/8 DIN Microprocessor-Based Temperature/Process Controller0600-0009-0000 Rev COctober 1999Supersedes: 0600-0009-0000 Rev B$10.00Made in t

1.4 WATLOW Series 988LF User’s ManualHardware Setup, Chapter 1Notes

WATLOW Series 988LF User’s Manual 2.1Installation and Wiring, Chapter 2Chapter 2 Installation and WiringPanel CutoutMaximum PanelThickness0.38" (

2.2 WATLOW Series 988LF User’s ManualInstallation and Wiring, Chapter 2InstallationInstalling the Series 988LFInstalling and mounting requires access

WATLOW Series 988LF User’s Manual 2.3Installation and Wiring, Chapter 2WiringWiring the Series 988LFWiring options depend on the model number and DIP

Wiring 0-20 and 4-20mA Process InputsCertain “transmitters” used in process input applications are producinginternal resistor failures in the Watlow S

WATLOW Series 988LF User’s Manual 2.5Installation and Wiring, Chapter 2Wiring ExampleFigure 2.5 - System wiringexample.988L-10CA-AARRrear view(+)10922

Wiring NotesL1 L2powerearth ground1121 22çWARNING:To avoid damage toproperty and equip-ment, and/or injuryof loss of life, useNational ElectricCode (N

WATLOW Series 988LF User’s Manual 2.7Installation and Wiring, Chapter 2Figure 2.7c — 0-5VÎÎ, 1-5VÎÎor 0-10VÎÎ(dc) ProcessUniversal signal conditioner9

2.8 WATLOW Series 988LF User’s ManualInstallation and Wiring, Chapter 2Figure 2.8d — 0-20mA or 4-20mA ProcessUniversal signal conditioner98 _ L - _ 2

WATLOW Series 988LF User’s Manual 2.9Installation and Wiring, Chapter 2Figure 2.9a — AC OutputsSolid-state Relay with Contact Suppression98 _ L - _ _

Introduction to the Watlow Series 988LFControllersii Using this Manualii Document Every Stepiii Notes, Cautions and Warningsiii Technical Assistanceii

Figure 2.10a — AC OutputsSolid-state Relay with Contact Suppression98 _ L - _ _ _ B- A A _ _0.5 amps, minimum off-state impedance: 20KΩElectromechanic

WATLOW Series 988LF User’s Manual 3.1Front Panel and Display Loop, Chapter 3Upper DisplayIndicates the actual process value,prompt parameter value or

3.2 WATLOW Series 988LF User’s ManualFront Panel and Display Loop, Chapter 3Display LoopDisplay LoopThe Display Loop is the “home” state of the Series

SetupSetup Menu, Chapter 4 WATLOW Series 988LF Users Manual 4.1Chapter 4 The Setup MenuNavigating the Setup MenuThe Setup Menu displays the parameters

Setup4.2 WATLOW Series 988LF Users Manual Setup Menu, Chapter 4Setup Prompts❸ Use the Mode key µ to advance through theSetup Menu. You will not see e

SetupSetup Menu, Chapter 4 WATLOW Series 988LF Users Manual 4.3[`In1]çCaution:Changing the value of[`In1] changes mostother prompts to thefactory defa

Setup4.4 WATLOW Series 988LF Users Manual Setup Menu, Chapter 4Range Low and Range HighSelect the low and high range for input 1. These prompts limi

SetupSetup Menu, Chapter 4 WATLOW Series 988LF Users Manual 4.5[`rL1][`rH1]Range Low and RangeHigh continued fromprevious page.NOTE:The range high [`

Setup4.6 WATLOW Series 988LF Users Manual Setup Menu, Chapter 4[`dEC]DecimalSelect the decimal point location for process type input 1 data. Thisprom

SetupSetup Menu, Chapter 4 WATLOW Series 988LF Users Manual 4.7[`rSP]Remote Set Point Inputcontinued from previouspage.Range Low 2 and Range High 2Sel

WATLOW Series 988LF User’s Manual iIntroductionIntroduction To The Watlow Series 988LF ControllersFigure Int.1 - The Series 988LFFeatures.Welcome to t

Setup4.8 WATLOW Series 988LF Users Manual Setup Menu, Chapter 4Default Default Default↓↓ ↓↓(K) ``°F] [`°C][```H] [-328]…[2500] [-200]…[1371][```t] [-3

SetupSetup Menu, Chapter 4 WATLOW Series 988LF Users Manual 4.9[`Ot2]Output 1Set the way that output 1 will respond to a difference between the setpoi

Setup4.10 WATLOW Series 988LF Users Manual Setup Menu, Chapter 4[`SIL][`ALt]Alarm TypeSelects the alarm type when Output 2 has been selected as an ala

OperationsOperations Menu, Chapter 5 WATLOW Series 988LF Users Manual 5.1Navigating the Operation Menus❶ To reach the Operation Menus, begin in theDis

Operations5.2 WATLOW Series 988LF Users Manual Operations Menu, Chapter 5Display Prompts❸ Use the Mode key µ to advance through the OperationsMenu. Y

OperationsOperations Menu, Chapter 5 WATLOW Series 988LF Users Manual 5.3[`rE1]Reset, Output 1Tune the control action to eliminate the offset or droop

Operations5.4 WATLOW Series 988LF Users Manual Operations Menu, Chapter 5Rate, Output 2Tune the rate to eliminate overshoot on startup or after the se

OperationsOperations Menu, Chapter 5 WATLOW Series 988LF Users Manual 5.5Dead BandSelect the width of the zone between the action of the heating(rever

Operations5.6 WATLOW Series 988LF Users Manual Operations Menu, Chapter 5Alarm HiSelect the high trigger value for the output 2 alarm. Represents the

OperationsOperations Menu, Chapter 5 WATLOW Series 988LF Users Manual 5.7Local-remoteSelects a local or remote set point. With [```r] selected the co

ii WATLOW Series 988LF User’s ManualIntroductionIntroductionUsing this ManualThis manual provides the information you will need to install and operate

Operations5.8 WATLOW Series 988LF Users Manual Operations Menu, Chapter 5Notes

Factory Menus, Chapter 6 WATLOW Series 988LF Users Manual 6.1Chapter 6 The Factory Menus❶ Press the Up-arrow > and Down-arrow < keys together an

6.2 WATLOW Series 988LF Users Manual Factory Menus, Chapter 6Factory Ship DateShows the date that the final factory control test was performed. Thefi

Factory Menus, Chapter 6 WATLOW Series 988LF Users Manual 6.3Inputs 1 and 2 Module TypesDisplays which input module is installed in the controller. P

6.4 WATLOW Series 988LF Users Manual Factory Menus, Chapter 6Test OutputsThis prompt tests each output. To run the test, scroll through theDiagnostic

Factory Menus, Chapter 6 WATLOW Series 988LF Users Manual 6.5❶ Press the Up-arrow > and Down-arrow< keys together and hold until the [`LOC]promp

6.6 WATLOW Series 988LF Users Manual Factory Menus, Chapter 6Notes

Tuning, Manual Operation, Alarms, and Error Codes, Chapter 7 WATLOW Series 988LF Users Manual 7.1Chapter 7 Tuning, Manual Operation,Alarms and Error C

7.2 WATLOW Series 988LF Users Manual Tuning, Manual Operation, Alarms, and Error Codes, Chapter 74. When tuning is complete, the displays return to th

Tuning, Manual Operation, Alarms, and Error Codes, Chapter 7 WATLOW Series 988LF Users Manual 7.3Manual and Automatic OperationTo change from auto to

IntroductionWATLOW Series 988LF User’s Manual iiiIntroductionNotes, Cautions and WarningsWe use note, caution and warning symbols throughout this book

7.4 WATLOW Series 988LF Users Manual Tuning, Manual Operation, Alarms, and Error Codes, Chapter 7Using AlarmsOutput 2 of the Series 988LF can function

Tuning, Manual Operation, Alarms, and Error Codes, Chapter 7 WATLOW Series 988LF Users Manual 7.5Error CodesNOTE:To view the error code,press the Auto

7.6 WATLOW Series 988LF Users Manual Tuning, Manual Operation, Alarms, and Error Codes, Chapter 7Error CodesNOTE:An alarm display will bemasked by an

Tuning, Manual Operation, Alarms, and Error Codes, Chapter 7 WATLOW Series 988LF Users Manual 7.7Notes

7.8 WATLOW Series 988LF Users Manual Tuning, Manual Operation, Alarms, and Error Codes, Chapter 7Notes

Appendix WATLOW Series 988LF Users Manual A.1Warranty/ReturnsWarrantyThe Watlow Series 988LF is warranted to be free ofdefects in material and workman

A.2 WATLOW Series 988LF Users Manual AppendixGlossaryannunciator — A visual display that uses pilot lights toindicate the former or existing condition

Appendix WATLOW Series 988LF Users Manual A.3NEMA 4X — A NEMA specification for determining resistanceto moisture infiltration. This rating certifies

A.4 WATLOW Series 988LF Users Manual AppendixIndex%OUT LED 3.10-5VÎ (dc) process wiringinput 1 2.7remote set point option 2.8output 1 2.90-10VÎ (d

Appendix WATLOW Series 988LF Users Manual A.5Q, Rrange high 1 4.4 - 4.5range high 2 4.7 - 4.8range low 1 4.4 - 4.5range low 2 4.7 - 4.8rateoutput

iv WATLOW Series 988LF User’s ManualIntroductionNotes

A.6 WATLOW Series 988LF Users Manual AppendixSpecificationsLine Voltage/Power• 100-240Vı(ac/dc) +10%, -15%; 50/60Hz, ±5%• 24-28Vı(ac/dc) +10%, -15%;

Appendix WATLOW Series 988LF Users Manual A.7Ordering Information–(1319)To order, complete the code number to the right with the information below:9 8

A.8 WATLOW Series 988LF Users Manual AppendixFigure A.8-The Series 988LF MapNOTE:This is a completelisting of all Series988LF prompts.Not all prompts

Erwin D. Lowell Winona, Minnesota, USAName of Authorized Representative Place of IssueGeneral Manager January 9, 1996Title of Authorized Representativ

Watlow Series 988LF User’s ManualWatlow Controls, 1241 Bundy Boulevard., P.O. Box 5580, Winona, Minnesota USA 55987-5580Phone: (507) 454-5300, Fax: (

WATLOW Series 988LF User’s Manual 1.1Hardware Setup, Chapter 1Chapter 1 Hardware SetupDIP Switch Locations and FunctionsThe Watlow Series 988LF has at

1.2 WATLOW Series 988LF User’s ManualHardware Setup, Chapter 1DIP SwitchesFigure 1.2 - Input DIP switches.Input 1 Input 2 (Remote Set Point)(98_L-2___

WATLOW Series 988LF User’s Manual 1.3Hardware Setup, Chapter 1DIP SwitchesFigure 1.3 - Lockout DIP switch.no hardware lockout or(Switch 1 has no effec