Watlow Optimizing Your Process System with the Series 988 Manuel d'utilisateur

WATLOWOptimizing Your Process Systemwith the Series 988 ControllerAN APPLICATION GUIDEFOR THE WATLOWSERIES 988 FAMILY

Optimizing Your Process System with the WATLOW Series 988Basic Control Strategies and Terms2.1Chapter TwoControl Strategies 2.2Questions and Answers 2

Optimizing Your Process System with the WATLOW Series 9882.2Basic Control Strategies and TermsProcess ControlProcess controls are of two basic types:

Optimizing Your Process System with the WATLOW Series 988Basic Control Strategies and Terms2.3a droop condition before it exists. An integra-tion func

Optimizing Your Process System with the WATLOW Series 9882.4Basic Control Strategies and Termsdown to a state of equilibrium before makinganother chan

Optimizing Your Process System with the WATLOW Series 988Basic Control Strategies and Terms2.5System DiagramNo matter what your application, you musts

Optimizing Your Process System with the WATLOW Series 9882.6Basic Control Strategies and Terms• What is frequent? In order to tightly control aprocess

Optimizing Your Process System with the WATLOW Series 988Basic Control Strategies and Terms2.7condensing atmosphere, because the ventedcase is suscept

Optimizing Your Process System with the WATLOW Series 9882.8Basic Control Strategies and TermsGlossaryannunciator — a device that uses pilot lamps toi

Optimizing Your Process System with the WATLOW Series 988Basic Control Strategies and Terms2.9form C — single-pole, double-throw relay thatutilizes th

Watlow Mission StatementTo Become the Preferred Source ofIndustrial Heaters, Sensors andControls by Totally Satisfying OurCustomers with Superior Prod

Optimizing Your Process System with the WATLOW Series 9882.10Basic Control Strategies and Termsreference junction — synonymous with coldjunction. Also

General Software Features3.1Optimizing Your Process System with the WATLOW Series 988Chapter ThreeAuto-tune 3.2Burst fire 3.3Communications 3.4Dead ba

Optimizing Your Process System with the WATLOW Series 988General Software Features3.2Overview:The auto-tune feature allows the controller tomanipulate

General Software Features3.3Optimizing Your Process System with the WATLOW Series 988Burst FireOverviewVariable, time-base burst firing from the 988pr

Optimizing Your Process System with the WATLOW Series 988General Software Features3.4CommunicationsOverviewThe serial communications feature allows th

General Software Features3.5Optimizing Your Process System with the WATLOW Series 988Dead bandOverviewThe dead band prompts, and ,located in the PID

Optimizing Your Process System with the WATLOW Series 988General Software Features3.6Digital EventOverviewThe digital event input options on the Serie

General Software Features3.7Optimizing Your Process System with the WATLOW Series 988Sample ApplicationThe Series 988 controls the lower platen of a c

Optimizing Your Process System with the WATLOW Series 988General Software Features3.8Input FilterOverviewIn certain applications the process beingmeas

General Software Features3.9Optimizing Your Process System with the WATLOW Series 988TLTLWWAPROCESSL1 L2 L3 L4DEV% OUTDISPLAYMODEAUTOMANSERIES 988Inpu

IntroductionWelcome to the Watlow Series 988 application guide: Optimizing Your ProcessSystem with the WATLOW Series 988. This application guide descr

Optimizing Your Process System with the WATLOW Series 988General Software Features3.10Ramp To Set PointOverviewRamp to set point enables the 988 to ra

General Software Features3.11Optimizing Your Process System with the WATLOW Series 988OverviewThe remote set point feature allows the 988 touse a ther

Optimizing Your Process System with the WATLOW Series 988General Software Features3.12Overview:The retransmit output can be used to transmitan analog

General Software Features3.13Optimizing Your Process System with the WATLOW Series 988Slidewire FeedbackOverviewThe 988 can control the position of a

Enhanced Software Features4.1Optimizing Your Process System with the WATLOW Series 988Enhanced Software FeaturesChapter FourCascade 4.2Differential 4.

Optimizing Your Process System with the WATLOW Series 988Enhanced Software Features4.2CascadeOverviewCascade control can handle a difficult processwit

Enhanced Software Features4.3Optimizing Your Process System with the WATLOW Series 988In a system controlling a heater this would bethe maximum and mi

Optimizing Your Process System with the WATLOW Series 988Enhanced Software Features4.4DifferentialOverviewDifferential control allows the Series 988 t

Enhanced Software Features4.5Optimizing Your Process System with the WATLOW Series 988Dual PID setsOverview:Standard software units have a single set

Optimizing Your Process System with the WATLOW Series 988Enhanced Software Features4.6TLWWAPROCESSL1 L2 L3 L4DEV% OUTDISPLAYMODEAUTOMANSERIES 988Duple

Table of ContentsOptimizing Your Process System with the WATLOW Series 988Table of ContentsWatlow MissionIntroductionChapter 1 Test Drives 1.1Controll

Enhanced Software Features4.7Optimizing Your Process System with the WATLOW Series 988TLTLWWAPROCESSL1 L2 L3 L4DEV% OUTDISPLAYMODEAUTOMANSERIES 988Rat

Standard Features5.1Optimizing Your Process System with the WATLOW Series 988Standard FeaturesHow to use this chapter:This chapter describes features

Optimizing Your Process System with the WATLOW Series 988Standard Features5.2AlarmsOverviewOutputs 2, 3 and 4 can be configured asalarms. To configure

Standard Features5.3Optimizing Your Process System with the WATLOW Series 988TLTLWWAPROCESSL1 L2 L3 L4DEV% OUTDISPLAYMODEAUTOMANSERIES 988temperatures

Optimizing Your Process System with the WATLOW Series 988Standard Features5.4TLTLWWAPROCESSL1 L2 L3 L4DEV% OUTDISPLAYSERIES 988MODEAUTOMANAuto/ManualO

Standard Features5.5Optimizing Your Process System with the WATLOW Series 988DiagnosticsOverview:The Series 988 Diagnostics menu allows you toread the

Optimizing Your Process System with the WATLOW Series 988Standard Features5.6Input ErrorsOverviewWhen the 988 receives input information itcannot inte

Standard Features5.7Optimizing Your Process System with the WATLOW Series 988Overview:An array of hardware and software lockoutfeatures gives you trem

Optimizing Your Process System with the WATLOW Series 988Standard Features5.8TLTLWWAPROCESSL1 L2 L3 L4DEV% OUTDISPLAYMODEAUTOMANSERIES 988TLTLWWAPROCE

SpecificationsOptimizing Your Process System with the WATLOW Series 988 6.1Chapter SixSpecificationsInput Table 6.2Output Table 6.3Dimensions 6.4Displ

Table of ContentsOptimizing Your Process System with the WATLOW Series 988Chapter 5 Standard Features 5.1Alarms 5.2Auto/Manual 5.4Diagnostics 5.5Input

SpecificationsOptimizing Your Process System with the WATLOW Series 9886.2988 FAMILY INPUT TYPES Input 1 Input 2 Input 30-none1-basic signal condition

SpecificationsOptimizing Your Process System with the WATLOW Series 988 6.3988-FAMILY OUTPUT TYPES Output 1 Output 2 Output 3 Output 4noneAsolid-state

SpecificationsOptimizing Your Process System with the WATLOW Series 9886.4Dimensions4.03"(102mm)2.18"(55 mm)TLWWAPROCESSL1 L2 L3 L4DEV% OUTM

SpecificationsOptimizing Your Process System with the WATLOW Series 988 6.5TLWWAPROCESSL1 L2 L3 L4DEV% OUTDISPLAYSERIES 988MODEAUTOMANDisplays and Key

SpecificationsOptimizing Your Process System with the WATLOW Series 9886.6Controllers from the Series 988 family require sixsteps to set up — from sys

SpecificationsOptimizing Your Process System with the WATLOW Series 988 6.7User's ManualThe Series 988/989 User’s Manual provides theinformation

SpecificationsOptimizing Your Process System with the WATLOW Series 9886.8Product Specifications* Electromechanical relays are not recommended for PID

SpecificationsOptimizing Your Process System with the WATLOW Series 988 6.9WarrantyThe Watlow Series 988 family of controllers iswarranted to be free

7.1Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your ApplicationChapter SevenHow to Choose the Right 98

Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your Application7.2Step 1: OverviewA. Describe the process

Optimizing Your Process System with the WATLOW Series 988Test Drives1.1Test DrivesControlling an Extruder 1.2Drying Grain 1.4Melting Aluminum 1.6Mixin

7.3Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your ApplicationInputs1230-none1-basic signal condition

Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your Application7.4Outputs1234A-nonesolid-state relayB-0.5

7.5Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your ApplicationA. Determine what software features you

Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your Application7.6 calibration 5.3 diagnostics 5.4 factor

7.7Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your Application vertical horizontal100-240

Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your Application7.8A. Review the last six steps looking fo

7.9Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your ApplicationNotes Page

Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your Application7.10date: # of pages:to: from:comp/dept: c

7.11Optimizing Your Process System with the WATLOW Series 988How to Choose the Right 988 to Fit Your ApplicationSeries 988/989 Model Number Informatio

Optimizing Your Process System with the WATLOW Series 988Index8.1IndexAA/D overflow error 5.6A/D underflow error 5.6accuracy 6.8actuator interfaces

Optimizing Your Process System with the WATLOW Series 988Index8.2fixed power output 5.6flow transmitter 1.8, 3.9form A relay 2.8, 5.2, 6.3form A/B

Optimizing Your Process System with the WATLOW Series 988Index8.3process 2 5.2process 2 prompt 3.7process alarms 2.6, 3.7, 5.2process input 6.2pro

Optimizing Your Process System with the WATLOW Series 988Index8.4Prompst, parameters andmenus RS-232 5.5 EIA-485/422 5.5A alarm 2 high 3.10, 5.2 alarm

Optimizing Your Process System with the WATLOW Series 988Index8.5 display test 5.5E error 1-1 5.6 error 1-2 5.6 error 1-3 5.6 error 1-4 5.6 error 2-1

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