Watlow 8LS Controller Uživatelský manuál

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8LS
Users Guide
Part No. 10585-00. Revision 9.2
July 1996
Watlow Controls
1241 Bundy Blvd.
Winona, MN 55987
Customer Service
Phone: (800) 414-4299
Fax: (800) 445-8992
Technical Support
Phone: (507) 494-5656
Fax: (507) 452-4507
Email: wintechsupport@watlow.com
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Strany 1 - User’s Guide

8LSUser’s Guide Part No. 10585-00. Revision 9.2July 1996Watlow Controls1241 Bundy Blvd.Winona, MN 55987Customer ServicePhone: (800) 414-4299Fax: (800)

Strany 2 - Warranty

2 8LS User’s GuideOverview System DiagramThe illustration below shows how the parts of the 8LS are connected.When unpacking your system, use t

Strany 3 - Contents

92 8LS User’s GuideAppendix A: Ramp Soak Copying the Setup from Another ProfileUse this menu to setup similar profiles quickly, by copying a p

Strany 4 - Setup 45

Appendix A: Ramp Soak8LS User’s Guide 93Editing the Ready SetpointWhen you assign a profile to a loop, the profile doesn’t startimmediately; instead,

Strany 5 - Tuning and Control 75

94 8LS User’s GuideAppendix A: Ramp Soak Choosing an External Reset InputUse this menu to select an external reset input. Toggle the input to

Strany 6 - Appendix A: Ramp Soak 89

Appendix A: Ramp Soak8LS User’s Guide 95Setting a Segment SetpointUse this menu to set a setpoint for the segment you are editing. Theprocess will go

Strany 7 - Glossary 123

96 8LS User’s GuideAppendix A: Ramp Soak Editing Event OutputsThis menu appears only if you answered YES to the previous menu. Useit to assign

Strany 8

Appendix A: Ramp Soak8LS User’s Guide 97Assigning an Input to a TriggerThis menu appears only if you answered YES to the Edit SegmentTriggers menu. Us

Strany 9

98 8LS User’s GuideAppendix A: Ramp Soak Setting Segment ToleranceUse this menu to set a positive or negative tolerance value for eachsegment.

Strany 10 - System Diagram

Appendix A: Ramp Soak8LS User’s Guide 99Using Ramp/SoakThis section explains how to assign a profile to a loop, how to put aprofile in Run, Continue,

Strany 11

100 8LS User’s GuideAppendix A: Ramp Soak Assigning a profile the first timeTo assign a profile to a loop that doesn’t have a profile, follow

Strany 12 - Overview

Appendix A: Ramp Soak8LS User’s Guide 101Running several profiles simultaneouslyTo run several profiles simultaneously, follow these steps:1. Setup th

Strany 13 - Introduction

Overview8LS User’s Guide 3SafetyWatlow Anafaze has made efforts to ensure the reliability and safety ofthe 8LS controller and to recommend safe usage

Strany 14

102 8LS User’s GuideAppendix A: Ramp Soak Bar graph displayLoops that are running R/S profiles have different Bar Graph displaycodes. For thes

Strany 15

Appendix A: Ramp Soak8LS User’s Guide 103How many times has it cycled?From Single Loop display, press the RAMP/SOAK key twice. The nextmenu will appea

Strany 16

104 8LS User’s GuideAppendix A: Ramp Soak Continuing a profileIf a profile is holding and you want it to run, you can put it in Continuemode.•

Strany 17 - Installation

Appendix B: 8LS-CP8LS User’s Guide 105Appendix B: 8LS-CP The 8LS-CP controller with a Zirconia Carbon Probe assembly cancontrol and record the Dew poi

Strany 18 - Read This Before Installation

106 8LS User’s GuideAppendix B: 8LS-CP System ConfigurationThe 8LS-CP uses a modified input with discreet components per carboninput. Each CP

Strany 19 - Mounting The 8LS

Appendix B: 8LS-CP8LS User’s Guide 107The 8LS-CP is not only ordered for the number of carbon input loopsdesired, but the CPU DIP Switch on the CPU bo

Strany 20 - 12 8LS User’s Guide

108 8LS User’s GuideAppendix B: 8LS-CP SpecificationsThe standard specifications listed in the Introduction section of thismanual apply to the

Strany 21 - General Wiring Requirements

Appendix B: 8LS-CP8LS User’s Guide 109CP ControlThe temperature control may be accomplished by using a standardAnalog Input/Output loop or it may be i

Strany 22

110 8LS User’s GuideAppendix B: 8LS-CP Recommended CP Trim Gas Alarm for Continuous ApplicationsWhen using the 8LS-CP for controlling the gas

Strany 23 - Cable Recommendations

Appendix B: 8LS-CP8LS User’s Guide 111Carbon ProbeIn general practice, follow the probe manufacturer’s recommendationsas to installation and maintenan

Strany 24 - Noise Suppression

4 8LS User’s GuideOverview

Strany 25 - 130 VAC ratin

112 8LS User’s GuideAppendix B: 8LS-CP Probe Burn OffCarbon Probe Burn Off Requirements:1. To burn off carbon, excess fresh air is supplied to

Strany 26

Appendix B: 8LS-CP8LS User’s Guide 113The figure below describes the typical installation of a carbon burn offsystem. Burn Off FunctionThe carbon pr

Strany 27 - RTB Connections

114 8LS User’s GuideAppendix B: 8LS-CP If you want to disable the enrichment gas during the burn off period, aNormally Open solenoid valve sho

Strany 28 - Grounding

Appendix B: 8LS-CP8LS User’s Guide 115CO+CO2% and % of HydrogenUpon selecting CP as the input type, the following menu is available.Use it to adjust t

Strany 29 - Input Scaling

116 8LS User’s GuideAppendix B: 8LS-CP Offset CalibrationIf the carbon probe input type is set to CP or DP, a menu is available forediting an

Strany 30 - Resistor Installation

Appendix B: 8LS-CP8LS User’s Guide 117typically used in continuous furnace applications. Setting the start modeto Input means the burn off procedure w

Strany 31 - Thermocouple Inputs

118 8LS User’s GuideAppendix B: 8LS-CP Burn Off Time PeriodThis menu is displayed if the start mode is set to either Input or Time.Use it to e

Strany 32 - RTD Inputs

Appendix B: 8LS-CP8LS User’s Guide 119Setup AlarmsCP Gas AlarmThis menu is available from the Setup Alarms main menu. Use it to setthe digital output

Strany 33 - Carbon Probe Input

120 8LS User’s GuideAppendix B: 8LS-CP

Strany 34

Appendix C: 8LS Cascade8LS User’s Guide 121Appendix C: 8LS CascadeIntroductionThe Cascade control feature allows the output percentage of one controll

Strany 35 - Control Outputs

Introduction8LS User’s Guide 5Introduction The 8LS is a powerful 1/4 DIN controller that delivers 8 fullyindependent loops of PID control. It can fun

Strany 36 - Pid Control Relay Outputs

122 8LS User’s GuideAppendix C: 8LS Cascade Choosing the Primary LoopUse this selection to choose the primary loop for cascade control. Thislo

Strany 37 - Primary Analog Outputs

123 8LS User’s GuideGlossaryAACSee Alternating Current.AC Line FrequencyThe frequency of the AC power line measured inHertz (Hz), usually 50 or 60 Hz.

Strany 38

Glossary 124 8LS User’s GuideBumpless TransferA smooth transition from Auto (closed loop) toManual (open loop) operation. The control outputdoes not

Strany 40

Glossary 126 8LS User’s GuideFilterFilters are used to handle various electrical noiseproblems. Digital Filter (DF) — A filter that allows therespons

Strany 42 - RS-485 Description

Glossary 128 8LS User’s GuideOOffsetThe difference in temperature between the set-point and the actual process temperature. Offsetis the error in the

Strany 44

Glossary 130 8LS User’s GuideSpanThe difference between the lower and upper lim-its of a range expressed in the same units as therange.SpreadIn heat/

Strany 46

6 8LS User’s GuideIntroduction Dual Output Standard: The 8LS includes dual control outputs foreach loop with a second set of control constant

Strany 47 - Man/Auto

Glossary 132 8LS User’s Guide

Strany 48 - Displays

Introduction8LS User’s Guide 7SpecificationsAnalog InputsThermocouple RangesRTD RangesAnalog inputs 8, solid state, differentialOptical isolation 120

Strany 49 - Alarm Display

8 8LS User’s GuideIntroduction Control CapabilityDigital OutputsDigital InputsPulse Counting InputSerial InterfacePower SupplyNumber of loops

Strany 50

Installation8LS User’s Guide 9InstallationThis section explains how to install the 8LS. The instructions are writtenfor nontechnical users. If you are

Strany 51 - SET? TUNE

10 8LS User’s GuideInstallation Read This Before InstallationDANGERShut off power to your process before you installthe 8LS. High voltage may

Strany 52 - 6 SET MAN

Installation8LS User’s Guide 11Mounting The 8LSThe 8LS consists of a 1/4 DIN housing with a front plug in electronicsmodule. The 8LS-OF (Open Frame) i

Strany 53 - How to edit a menu?

Copyright © 1996Watlow AnafazeInformation in this manual is subject to change without notice. No part of this publication may bereproduced, stored in

Strany 54 - 1 1 1 1 1 1 1 1

12 8LS User’s GuideInstallation .1234 56 78LOOP PROCESS UNITSALARM SETPOINT STATUS OUTPUT%YESNOBACKENTERALARM ACKCHNG SPMANAUTORAMPSOAKFr

Strany 55 - GLOBALS?

Installation8LS User’s Guide 13External WiringDuring wiring, it is recommended that the 8LS electronics be removedor that temporary covers be put over

Strany 56 - Set Alarm Delay

14 8LS User’s GuideInstallation 2. Use 20 or 22 AWG size wire. The use of 16,18,20,22, or 24 AWG ispermissible also. The power requirement is

Strany 57 - Power Up Output Status

Installation8LS User’s Guide 15Wiring bundles of low power Watlow Anafaze circuits next to bun-dles of high power AC wiring should never be done. The

Strany 58 - CHK? BCC

16 8LS User’s GuideInstallation Noise Suppression When using the digital outputs from Watlow Anafaze multiloopcontrollers to energize dry cont

Strany 59 - AC Line Frequency

Installation8LS User’s Guide 17The above steps should eliminate any noise problems that might bepresent with using E-M relays. If, problems persists a

Strany 60 - EPROM Version

18 8LS User’s GuideInstallation Terminal Block And Connector LayoutThe 8LS terminal blocks and connectors are assigned according to thefollowi

Strany 61 - INPUT?

Installation8LS User’s Guide 19RTB ConnectionsThe RTB provides the control outputs and additional digital inputs andoutputs as follows:All digital out

Strany 62 - TYPE? J

20 8LS User’s GuideInstallation NOTEWhen using the RTB, proper polarity of the flatribbon cable is necessary for correct pin termina-tions. In

Strany 63 - UNIT = F

Installation8LS User’s Guide 21Source ImpedanceEach sensor has a certain output impedance which is effectivelyconnected across the 8LS input amplifier

Strany 64 - Low PV Display

8LS User’s Guide iContentsOverview 1System Diagram...2Parts List ...

Strany 65 - 1 LO RDG

22 8LS User’s GuideInstallation Resistor Installation For scaling resistors the body of the resistor goes vertically into the holewith the whi

Strany 66 - 1 OFFSET

Installation8LS User’s Guide 23Voltage InputsDC Voltage inputs should be connected with the positive side to theHigh terminal and the negative side to

Strany 67 - CONTROL ?

24 8LS User’s GuideInstallation RTD Inputs The standard industrial RTD is a 100 ohm Platinum three wireassembly. We highly recommend using the

Strany 68 - Heat/Cool Output Filter

Installation8LS User’s Guide 25The range of the standard IRSM is 0-1000 degrees F with an output of0-10ma dc. The input of the Watlow Anafaze 8LS is c

Strany 69 - SPR? 10

26 8LS User’s GuideInstallation The Belden cable part number 88760 is highly recommended for theconnection of the carbon probe to the 8LS. An

Strany 70 - OUTPUTS?

Installation8LS User’s Guide 27Control Outputs WARNINGControl outputs are connected to the 8LS logicground. Be careful when you connect externaldevice

Strany 71 - CT ? 10

28 8LS User’s GuideInstallation Pid Control Relay Outputs Typical ON/OFF, TP, DZC control outputs utilize external optically-isolated solid-st

Strany 72 - LIM ? 100

Installation8LS User’s Guide 29Digital Outputs On The Screw Terminal BlocksNOTEAlarms and events outputs are sinking +5vdc toground when the output is

Strany 73 - NLO ?OFF

30 8LS User’s GuideInstallation second is down, the output is in current mode. Thus if switch 3 is downand 4 is up on the dip switch package n

Strany 74 - TERM BLK

Installation8LS User’s Guide 31CPU Dip SwitchWARNINGNormal mode of operation is for all positions to beOff. Positions that are On will effect the 8LS

Strany 75 - Setup Alarms

ii 8LS User’s GuidePID Control Relay Outputs...28Primary Screw Terminal Outputs ...

Strany 76 - Process Alarms

32 8LS User’s GuideInstallation Connections are made as follows:SSR 1SSR 2+-+-Remote Terminal Block OrRibbon Cable Pin9111PID Ctl

Strany 77 - High Process Alarm Status

Installation8LS User’s Guide 33Communications Set-up and ConnectionsThe 8LS offers two types of serial communications: RS- 232 and RS-485. Up to 32 ad

Strany 78 - Deviation Band Alarm Status

34 8LS User’s GuideInstallation RS-485 Description And ConnectionsThe RS-485 is a voltage balanced long distance multi-pointtransmission inter

Strany 79 - Low Process Alarm Status

Installation8LS User’s Guide 35RS-485 ConnectionsConnection of Watlow Anafaze controllers to a system computerrequires an interface at the computer to

Strany 80 - Alarm Delay

36 8LS User’s GuideInstallation A termination resistor is required at each end of the transmission line.This is accomplished by applying a 200

Strany 81 - INS = 1 1 1 1

Using the 8LS8LS User’s Guide 37Using the 8LSThis Chapter will show you how to use the 8LS from the front panel.Front PanelThe 8LS front panel provide

Strany 82 - NR01? OFF

38 8LS User’s GuideUsing the 8LS Front Panel KeysPress Yes to• Select a menu when prompt is blinking• Answer Yes to Yes/No prompts• Increase a

Strany 83 - Tuning and Control

Using the 8LS8LS User’s Guide 39Press Chng SP to• Adjust the setpoint on displayed loopPress Man/Auto to• Toggle loop status between Manual and Auto•

Strany 84 - Control Modes

40 8LS User’s GuideUsing the 8LS DisplaysThe next section discusses the 8LS displays:• Bar Graph display• Single Loop display• Scanning displa

Strany 85

Using the 8LS8LS User’s Guide 41The table below shows the status symbols for the Ramp and Soakoption.If an acknowledged alarm exists, the Bar Graph is

Strany 86 - Time Proportioning (TP)

8LS User’s Guide iiiInput Type...54Pulse Sample Time ...

Strany 87 - Reverse and Direct Action

42 8LS User’s GuideUsing the 8LS The table below shows the alarm symbols.The Alarm display interrupts any system display. If more than one ala

Strany 88

Using the 8LS8LS User’s Guide 43Operator MenusYou can perform these tasks from Single Loop display.Changing the SetpointPress CHNG SP from the loop yo

Strany 89 - Derivative Term (TD) Settings

44 8LS User’s GuideUsing the 8LS If you have set the current loop to Manual control, this display appearsafter you press Enter:• Press Ye s t

Strany 90 - PI with Derivative (PID)

Setup8LS User’s Guide 45SetupThe Setup menus let you change the 8LS detailed configurationinformation.If you have not set up a modular system before,

Strany 91 - 8LS User’s Guide 83

46 8LS User’s GuideSetup Setup Setup Setup Globals? control?SetupOutputs?SetupAlarms?SetupR/S Pro?Save asjob# ?RestoreJob# ?Alarmdelay?R/S ti

Strany 92 - 84 8LS User’s Guide

Setup8LS User’s Guide 47Setup Global Parameters MenuThe Setup global parameters menu looks like this:Answering Yes to this prompt gets you into the gl

Strany 93 - Troubleshooting

48 8LS User’s GuideSetup Save as JobUse this menu to save the job information for every loop to one of eightjobs in the battery-backed memory.

Strany 94 - Computer Supervised Systems

Setup8LS User’s Guide 49Set R/S Time BaseUse This menu to set the global ramp and soak time base to units ofhours and minutes or minutes and seconds.

Strany 95 - Serial Interface

50 8LS User’s GuideSetup WARNINGSet safe start up conditions. Do not use memorystartup if there is any chance the process couldstart in an uns

Strany 96 - 88 8LS User’s Guide

Setup8LS User’s Guide 51Communication Baud RateUse this menu to set the communications baud rate.Selectable values: 2400 or 9600.NOTEIf you are using

Strany 97 - Appendix A: Ramp Soak

iv 8LS User’s GuideSetting Up and Tuning PID Loops ...80General PID Constants by Application...

Strany 98 - Configuring Ramp/Soak

52 8LS User’s GuideSetup EPROM VersionUse this menu to see the controller’s EPROM version and checksum.1234 56 78LOOP PROCESS UNITSALARMSETPOI

Strany 99 - Choosing a Profile to Edit

Setup8LS User’s Guide 53Setup Inputs MenuThe Setup input main menu lets you access menus which change loopinput parameters:• Input type• Engineering u

Strany 100 - T? 1:00

54 8LS User’s GuideSetup Input TypeUse this menu to configure the input sensor for each loop as one of theseinput types:• Thermocouple types (

Strany 101 - Editing the Ready Setpoint

Setup8LS User’s Guide 55Pulse Sample TimeYou can connect a digital pulse signal of 20 KHz to the controller’spulse input. Use this menu to specify the

Strany 102 - Setting Segment Time

56 8LS User’s GuideSetup Linear Scaling MenusNOTEThe next four menus appear only for Linear orPulse loops.For all inputs automatic scaling is

Strany 103 - EVENTS?

Setup8LS User’s Guide 57Low RDG DisplaySelectable range: 0-9999.The low input reading is referenced to 60mV and is calculated using thisequation:Linea

Strany 104 - Editing Segment Triggers

58 8LS User’s GuideSetup Input OffsetNOTEThe next menu appears only for Thermocouple orRTD loops.Use this menu to make up for the input signal

Strany 105 - 1234 56 78

Setup8LS User’s Guide 59Setup Control MenuThe Setup Control menu allows you to set control parameters for bothheat and cool outputs of the selected lo

Strany 106 - Repeating a Profile

60 8LS User’s GuideSetup Heat/Cool PBUse this menu to set the Proportional Band.Heat/Cool TIUse this menu to set the Integral Term.Selectable

Strany 107 - PROF? 0

Setup8LS User’s Guide 61Heat/Cool SpreadUse this menu to set the spread between the heat and cool output and thespread of the On/Off control action. S

Strany 108 - SET? RUN

8LS User’s Guide vHolding a Profile or Continuing from Hold...103Resetting a Profile...

Strany 109 - 73 S 0

62 8LS User’s GuideSetup Setup Outputs MenuThe Setup Outputs Menu allows you to edit output parameters such as:• Output type• Cycle time• Cont

Strany 110 - How long has the profile run?

Setup8LS User’s Guide 63Output TypeUse this menu to to set the output type.Selectable values: The next table shows the available output types.Cycle Ti

Strany 111 - SET?HOLD

64 8LS User’s GuideSetup Output ActionUse this menu to select the control action for the current output loop.The default is Reverse for heat o

Strany 112 - RESET? A

Setup8LS User’s Guide 65Output Limit TimeUse this menu to set the time limit for the output limit.Selectable values: 1-999 seconds or C (Continuous).N

Strany 113 - Appendix B: 8LS-CP

66 8LS User’s GuideSetup Heat OutputUse this menu to select the Terminal Block or the Flat Ribbon for theheat output termination. The heat out

Strany 114 - System Configuration

Setup8LS User’s Guide 67Setup AlarmsThe Setup Alarms main menu lets you access menus which change thealarm functions for the selected loop.You can edi

Strany 115

68 8LS User’s GuideSetup Alarm TypesGlobal AlarmsGlobal alarms occur when a loop alarm, set to Alarm, isunacknowledged, or when there are any

Strany 116 - Specifications

Setup8LS User’s Guide 69High Process Alarm Setpoint Use this menu to select the setpoint at which the high process alarmactivates. The high process al

Strany 117 - CP Control

70 8LS User’s GuideSetup Deviation Band AlarmUse this menu to set the deviation bandwidth, a positive and negativealarm point relative to the

Strany 118 - Applications

Setup8LS User’s Guide 71Low Deviation Alarm Output NumberUse this menu to assign a digital output which activates when the loop isin low diviation ala

Strany 119 - Carbon Probe

vi 8LS User’s Guide

Strany 120 - Probe Burn Off

72 8LS User’s GuideSetup Low Process Alarm Output NumberUse this menu to assign the digital output that activates when the loop isin low proce

Strany 121 - Burn Off Function

Setup8LS User’s Guide 73Test I/OThe Test I/O main menu lets you view menus which can help you testthe digital inputs and the digital outputs.The main

Strany 122 - TYPE? CP

74 8LS User’s GuideSetup Test OutputUse this menu to select one of the 30 digital outputs for manualoperation.Selectable values: 1-30.Digital

Strany 123 - Engineering Units

Tuning and Control8LS User’s Guide 75Tuning and ControlIntroductionThis chapter explains PID control and supplies some starting PID valuesand tuning i

Strany 124 - BURNOFF?

76 8LS User’s GuideTuning and Control Control ModesThe next sections explain the different modes you can use to control aloop.On/Off ControlOn

Strany 125 - Burn Off start Input

Tuning and Control8LS User’s Guide 77However, a process which uses only Proportional control may settle at apoint above or below the setpoint; it may

Strany 126 - Burn Off Time Period

78 8LS User’s GuideTuning and Control Proportional, Integral and Derivative ControlFor an improved level of control, use Derivative control wi

Strany 127 - . 25 M 0

Tuning and Control8LS User’s Guide 79Distributed Zero Crossing (DZC) DZC output is essentially a Time Proportioning output. However, foreach AC line c

Strany 128 - 120 8LS User’s Guide

80 8LS User’s GuideTuning and Control Setting Up and Tuning PID LoopsAfter you have installed your control system, tune each control loop andt

Strany 129 - Appendix C: 8LS Cascade

Tuning and Control8LS User’s Guide 81Integral Term (TI) SettingsThis table shows TI settings vs. Reset settings.As a general rule, use 60, 120, 180, o

Strany 130 - Choosing the Primary Loop

Overview8LS User’s Guide 1OverviewThis manual describes how to install, setup, and operate an 8LScontroller. Included are six chapters, Appendixes des

Strany 131 - Glossary

82 8LS User’s GuideTuning and Control General PID Constants by ApplicationThis section gives PID values for many applications. They are useful

Strany 132

Tuning and Control8LS User’s Guide 83

Strany 133

84 8LS User’s GuideTuning and Control

Strany 134

Troubleshooting8LS User’s Guide 85TroubleshootingNOTEIf you need to return the 8LS to Watlow-Anafaze,please call first for a Returned Materials Author

Strany 135

86 8LS User’s GuideTroubleshooting Computer Supervised SystemsThese four items must work together to operate the 8LS:1. The 8LS2. Th

Strany 136

Troubleshooting8LS User’s Guide 87If you write your own software, first write a routine that sends andreceives display commands to and from the 8LS. T

Strany 137

88 8LS User’s GuideTroubleshooting

Strany 138

Appendix A: Ramp Soak8LS User’s Guide 89Appendix A: Ramp Soak IntroductionThis Appendix will teach you how to set up and use Ramp/Soak profilesin 8LS

Strany 139

90 8LS User’s GuideAppendix A: Ramp Soak SpecificationsConfiguring Ramp/SoakThis section will teach you how to set up R/S profiles. The follow

Strany 140 - 132 8LS User’s Guide

Appendix A: Ramp Soak8LS User’s Guide 91Setting the R/S Time BaseThe R/S time base menu is in the Setup Globals main menu.Use this menu to set the tim

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