Watlow MICRODIN Manual de usuario Pagina 1

MICRODINCommunicating Subpanel Temperature ControllerW0UD-XUMN Rev A Made in the U.S.A.January 1997 $10User’s ManualUser Levels:• New User ...

1.4 Watlow MicroDINOverviewNotes

AppendixA.14 Watlow MicroDINPrimary Control Output (heating or cooling)• Output update rate: 10 per second, 10Hz (maximum)Internal Load Switching (no

AppendixWatlow MicroDIN A.15Ordering InformationTo order, complete the code number to the right with the information below:U D 1 A - 1 C E S - _ _ _ _

AppendixA.16 Watlow MicroDINIndex 10-pin connector 3.5Aaccuracy A.14affects table 2.8Alarm Active Sides 5.20Alarm Condition 5.17Alarm High 5.19A

AppendixWatlow MicroDIN A.17proportional control 4.8proportional integral control 4.9proportional integral derivativecontrol 4.10RRange High 4.6,

AppendixA.18 Watlow MicroDINParameter Index(alphabetical order)AAlarm Active Sides 5.20Alarm Condition 5.17Alarm High 5.19Alarm Hysteresis 4.11, 5

Watlow MicroDIN A.19AppendixUnits TypeC or FInput Error ActionControl Output FunctionSet Fixed Manual Output OOpen Loop DetectSensor TypeInput Type OR

Watlow MicroDIN User’s ManualWatlow Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN 55987-5580, Phone: (507) 454-5300, Fax: (507) 452-4507How to

Watlow MicroDIN 2.1CommunicationsSetupChapter Two:Communications Setup2Communications OverviewEIA-485 Network ... 2.2Modb

2.2 Watlow MicroDINCommunications OverviewEIA-485 NetworkThe MicroDIN uses the EIA-485 (formerly, ÒRS-485Ó) hardware interface tocommunicate with thre

EIA-485 NetworkThe MicroDIN EIA-485 (RS-485) Network CharacteristicsAn EIA-485 interface uses three wires in a half-duplex configuration.The EIA-485 s

2.4 Watlow MicroDINSpecial Case 485 Network ConsiderationsIf your EIA-485 network does not work, it may require termination resistors.Termination Resi

Watlow MicroDIN 2.5CommunicationsSetupMicroDIN, A Modbus™Remote Terminal Unit (RTU)RTU The MicroDIN uses Modbus™RTU (remote terminal unit) protocol to

2.6 Watlow MicroDINCommunicationSetupModbus Register Numbers40001 0 Model Number (Diagnostics)40002 1 Serial Number (Characteristics)40003 2 Serial Nu

Watlow MicroDIN 2.7CommunicationsSetupSet Address/Baud RateConfigure the communications speed and network address of the MicroDINcontroller with the e

CommunicationSetupNote: This table also appears inside the back cover, p. A.19Watlow MicroDIN 2.8Units TypeC or FInput Error ActionControl Output Fun

Serial Data FormatConfigure your computer’s COM1 or COM2 (communications) port data formatto match the MicroDIN’s settings in the table below.MicroDIN

PurposeTo meet Mark CE requirements, this addendum provides supplemental information to the MicroDIN User’s Manual (W0UD-XUMN Rev A), and the MicroDIN

2.10 Watlow MicroDINCommunicationSetupNotes

Install and WireWatlow MicroDIN 3.1Installation and Wiring Chapter Three:Installation and Wiring3Introduction Set DIPs First ...

3.2 Watlow MicroDINIntroductionFor a successful MicroDIN installation you need to cover the tasks cited in thesubheads below. If you do all these thi

Watlow MicroDIN 3.3Install and WireMounting the MicroDINTo mount a MicroDIN on a DIN rail, hook the upper lip of the rail mountingbracket onto the rai

3.4 Watlow MicroDINInstall and WireMounting the MicroDIN on a DIN railTo Mount MicroDIN1. Push unit in and down to catch rail hookon top of rail.2. Ro

Watlow MicroDIN 3.5Install and WireMicroDIN RJ-11 and 10-pin ConnectorsThe MicroDIN 10-pin screw terminal connector, on the bottom of the case, linksi

3.6 Watlow MicroDINInstall and WireInput Wiring12345678910+-12345678910S1 S312345678910S1S2S3Figure 3.6b — Control Input, ThermocoupleFigure 3.6a — Mi

Watlow MicroDIN 3.7Install and WireOutput and Power Wiring12345678910+ExternalLoad-dc+COMdc-+-Power Supply60V max.1A max.12345678910ExternalLoadC

3.8 Watlow MicroDINInstall and WireCommunications WiringAddressPowerCommsAlarm Temperature ControllerMicroDINTemperature ControllerMicroDINControlOutp

Watlow MicroDIN 3.9Install and WireSpecial EIA-485 Network ConsiderationsIf your MicroDIN network needs termination and pull-up and pull-downresistors

Declaration of ConformityWATLOW CONTROLS1241 Bundy BoulevardWinona, Minnesota 55987 USADeclares that the following product:EnglishDesignation: Series

3.10 Watlow MicroDINInstall and WireWiring ExamplesHightemp.light92A3-1DJ1-DCLimit ControlHeaterOptionalNormallyOpenMomentarySwitchDIN-a-miteDA1C-1624

Watlow MicroDIN 3.11Install and Wire111234567891011112222222222333344455566778889991010101111++++––––11181615141419172021121313High Temp. LightL1L1L2L

3.12 Watlow MicroDINInstall and WireNotes

Watlow MicroDIN 4.1FeaturesChapter Four:Features4The SystemAuto-tune ... 4.2Power Limit ...

4.2 Watlow MicroDINThe SystemAuto-tuneAuto-tuning allows the controller to explore the responsiveness of the system inorder to determine an effective

Power LimitA high side power limit and low side power limit set the maximum output powerwithin two rangesA low side power limit limits the output to a

4.4 Watlow MicroDINInputCalibration OffsetCalibration offset allows a device to compensate for an inaccurate sensor, leadresistance or other factors t

Filter Time ConstantA time filter smooths an input signal by sampling the input at designated timeintervals. Either the viewed value or both the viewe

4.6 Watlow MicroDINSensor SelectionYou need to configure a controller to match the input device, which is normally athermocouple or RTD. When you sele

Control MethodsOn/Off ControlOn/off control switches the output either full on or full off, depending on theinput, set point and hysteresis values. Th

Meet the MicroDIN TeamFront Row: Rob Hermann, board assembly; Gene Lauer, product manager; Keith Ness, engineering team leader;Steve Lubahn, group lea

4.8 Watlow MicroDINProportional ControlSome processes need to maintain a temperature or process value closer to theset point than on/off control can p

Proportional plus Integral (PI) ControlThe droop caused by proportional control can be corrected by adding integral(reset) control to the system. When

4.10 Watlow MicroDINProportional plus Integral plus Derivative (PID) ControlUse derivative (rate) control to minimize the overshoot in a PI-controlled

Watlow MicroDIN 4.11FeaturesAlarmsAn alarm takes some action, usually notifying an operator, when the processtemperature leaves a defined range. A use

4.12 Watlow MicroDINFeaturesProcess or Deviation AlarmsA process alarm uses one or two fixed set points to define an alarm condition.A deviation alarm

Watlow MicroDIN 4.13FeaturesAlarm SilencingAlarm silencing has two uses:1. It is often used to allow a system to warm up after it has been started up.

4.14 Watlow MicroDINFeaturesErrorsPanel Indicator LightsError 4 RAM malfunction (return to factory)Error 5 EEPROM data corruptedError 6 PROM malfuncti

Bumpless TransferWhen the sensor opens (fails), the MicroDIN switches from automatic to manualoperation.When transferring from automatic to manual ope

4.16 Watlow MicroDINNotesFeatures

Watlow MicroDIN 5.1ParametersChapter FiveLearn the Parameters5System Group ...5.2Ambient (CJC) Temperature (1500).5.2Non-volatile Memory (24)

Safety InformationWe use note, caution and warning symbols throughout this book to draw yourattention to important operational and safety information.

Parameters5.2 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONSystem Group continuedSystem Group – MonitorSystem Error • See Err

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.3ONSystem Group – SetupUnits Type • Select US or SI units of measurement.• Read/wr

Parameters5.4 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONInput Group – MonitorInput Actual • Monitor the input value.• Duri

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.5ONInput Group continuedInput Group – SetupSensor Type• Select the input sensor ty

Parameters5.6 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONRange Low • Set the input range low. This setting is the lowest va

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.7ONFilter Time Constant • Set the filter time for the input, in seconds. This smoo

Parameters5.8 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONControl Output Group – MonitorOutput Power• Monitor the control ou

ParametersControl Output Group continued=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.9ONRange0: heat1: coolDefault0: heatActivealwaysAffe

Parameters5.10 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONControl Output Group continuedLow Side Power• Set the maximum all

Control Output Group continuedParameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.11ONOperation GroupMonitorOperation Mode ...

iv Watlow MicroDINChapter 1: Overview ... 1.1Introduction to the MicroDIN Contr

Parameters5.12 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONOperation Group continuedUser Set Point• Change or monitor the co

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.13ONPID GroupMonitorPID Output Power ... 5.13Ini

ParametersPID Group continued5.14 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONInitiate Auto-tune• Initiate or cancel an auto

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.15ONPID Group continuedabout PID control.• Read/write• Modbus: 502Range0.00 to 99.

Parameters5.16 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONPID Group continuedCycle Time • Set the control output cycle time

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.17ONAlarm Output Group – MonitorAlarm Condition • Monitor the alarm state.• Read o

Parameters5.18 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONAlarm Output Hardware • Read the alarm output hardware type.• Rea

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.19ONAlarm Output Group continuedAlarm Output Group – SetupAlarm Low • Set the low

Parameters5.20 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONAlarm Output Function • Turn the alarm output on or off.• Read/wr

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.21ONRange0: both1: high side only2: low side onlyDefault0: bothActiveif Alarm Outp

OverviewWatlow MicroDIN 1.1Chapter One:Overview1Introduction to the MicroDIN Controller .. 1.2Setup Steps ...

ParametersError Group continuedError GroupMonitorOpen Loop Error ... 5.22Open Loop Detect ...

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.23ONInput Error (see also Input Group) • Monitor the input error status.• Read onl

Parameters5.24 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONError Group – SetupInput Error Action (see also Input Group) • S

ParametersCharacteristics Group continued=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.25ONCharacteristics GroupDate of Manufacture ...

Parameters5.26 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONSerial Number 2 • Read the last four digits of the serial number.

ParametersDiagnostics Group continued=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.27ONDiagnostics GroupModel Number ...

Parameters5.28 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONRTD Lead Compensation Analog-to-Digital Counts• Reads the raw, RT

Parameters=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.29ONDerivative Term • Monitor the derivative term. See Chapter 4 for information a

5.30 Watlow MicroDIN =Read Only; =Read/Write; =Turn On/OffONParametersCalibration Group continuedEnter Calibration Mode• Enter calibrat

=Read Only; =Read/Write; =Turn On/Off Watlow MicroDIN 5.31ONParametersRestore to Factory Calibration (Set)• Restore factory calibration values from

Overview1.2 Watlow MicroDIN1.2 Watlow MicroDINIntroduction to the MicroDIN ControllerThe Watlow MicroDIN controller is a DIN rail-mounted, temperature

5.32 Watlow MicroDINParametersNotes

Watlow MicroDIN 6.1OperationsChapter Six:Operation and Calibration6MicroDIN Startup ... 6.2MicroDIN Shutdown ...

6.2 Watlow MicroDINOperationsMicroDIN StartupStarting the Watlow MicroDIN for either one zone or severalin any thermal system requires successful comp

MicroDIN ShutdownShutting down a Watlow MicroDIN-controlled thermal system for an optimumrestart requires attention to the following list:• Updating a

6.4 Watlow MicroDINOperationsLED Indication Symptoms Probable Cause(s)Troubleshooting Alarms and Errors most likely problems are listed firstPower• No

OperationsCorrective Action ReferenceWatlow MicroDIN 6.5• Check switches, fuses, breakers, interlocks, limits, connectors, • See Watlow Publication e

6.6 Watlow MicroDINOperationsNote: For information on writing Modbus™ RTUcommunications software for MicroDIN, see theAppendix.To enter the calibratio

Watlow MicroDIN A.1AppendixAppendixAModbus™RTU ... A.2Glossary ...

A.2 Watlow MicroDINModbus Remote Terminal Unit (RTU)Modbus RTU enables a computer or PLC to read and write directly to registerscontaining the control

Packet format: | nn | nn | nn nn…| nn nn |∆∆∆∆∆∆addresscommandregisters and/or dataCRCRead Multiple Registers Command (0x03 or 0x04)This command retur

OverviewSetup Steps1. Set up communications.2. Set the controller’s address and baud speed with the DIP switches on the toppanel (see Chapter 2, Commu

A.4 Watlow MicroDINExample: Read register 0 (model number) of the controller at address 1.Sent: 01 03 00 00 00 01 84 0AReceived: 01 03 02 03

Packet sent to controller: | nn | 10 | nnnn | 00 01 | 02 | nnnn | nn nn |∆∆∆∆∆∆∆∆∆∆∆controller address (one byte)write to multiple registers command (

A.6 Watlow MicroDINExample: Run loop back test on controller at address 40 (0x28).Sent: 28 08 55 66 77 88 31 B7Received: 28 08 55 66 77 88

Cyclical Redundancy Checksum (CRC) AlgorithmThis C routine, calc_crc(), calculates the cyclical redundancy checksum, CRC,for a string of characters.

A.8 Watlow MicroDINGlossaryannunciator — A visual display that uses pilot lights to indicate the former orexisting condition of several items in a sys

a form A or form B contact. hysteresis — A change in the process variable required to re-energize thecontrol or alarm output. Sometimes called switchi

A.10 Watlow MicroDINproportional control — A control using only the P (proportional) value of PIDcontrol.range — The area between two limits in which

transmitter — A device that transmits temperature data from either athermocouple or a resistance temperature detector (RTD) by way of a two-wireloop.

Declaration of ConformityWATLOW CONTROLS1241 Bundy BoulevardWinona, Minnesota 55987 USADeclares that the following product:EnglishDesignation: Series

AppendixWatlow MicroDIN A.13Specifications: W0UD-XSPN Rev A01Control Mode• Microprocessor-based, user selectable control modes• Single input, single o