Home

Operation Manual 05/2006

1. General requirements EN 60730 1 2001 Al Automatic electrical controls for household and EN 60730 2 9 2002 similar use Temperature Sensing Controls UL 1998 Class 1 ED 2 Software in programmable components Winona Minnesota USA Place of Issue Raymond D Feller III Name of Authorized Representative October 28 2005 Date of Issue General Manager Title of Authorized Representative Signature of Authorized Representative Warranty The Series EHG SL 10 is warranted to be free of defects in material and workmanship for 24 months after delivery 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 guarantee against failure Watlow s obligations hereunder at Watlow s option are limited to replacement repair or refund of pur chase 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 alteration misuse or abuse WARNING To avoid damage to property and equipment and or injury or loss of life use National Electric Code NEC standard wiring practices to install and operate the Series EHG SL 10 Fail ure to do so could result in such damage and or injury or death 4 EHG SL 10 User s Manual
2. or decrease that value Mode Key again to return to the process temperature Press the Mode Key to again display the prompt and display Otherwise the display will automatically return again to display the next prompt Press the Mode Key to showing the process temperature after three seconds atthe Display Build Number prompt to return to the To view or change parameter values hold down process value display both the Up Arrow and Down Arrow Keys for five Display Parameter Name amp Description Range Default Access Set Point 0 C 82 F to Set Point High Limit 150 C 802 F read write Set the set point GLA Set Point High Limit Alarm 0 to 220 C 32 to 428 F 200 C 392 F read write Set the temperature at which the limit will turn off the heater High Temperature Alert Above Set Point 1 to 99 C 2 to 178 F 20 C 36 F read write Set the high temperature that will trigger an alert LER LER Low Temperature Alert Below Set Point 5 to 99 C 9 to 178 F 20 C 36 F a Set the low temperature that will trigger an alert Control Mode Select lonF n lonF on off lonF lonF on off 4 Select a control method P id P Id PID On Off Hysteresis 3 to 28 C 5 to 50 F 3 C 6 F read write Set the how far below the set point the temperature can drop before the heater turns on Ph Proportional Band 0 to 68 C 0 to 122 F 0 C or F read write Set the proportional band Int Integral 0 to 999 read write Set the integral val
3. Alarm 3 gt flashing Inrange off Output Alert Alarm X In range off Output Alert Alarm In range X off Output Alert Alarm In range X a Output Alert Alarm Inrange on Output Xy Alert Alarm We In range Oe Output flashing Alert Alarm alternate In range eX flashing Output Adjust the proportional band with Proportional Pb ks Set Point Proportional Band Temperature Time Proportional plus Integral Pl Control The droop caused by proportional control can be corrected by adding integral 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 correction but this may increase the overshoot at startup or when the set point is changed Too much integral action will make the system unstable Integral is cleared when the process value is outside of the LTA Safety HTA Alarm relay relay Limit High Set Point 5L A off off High Temperature Alert off on J eee y Alarm Hysteresis g on on Normal Operating Range S m Set Point On Off Hysteresis HY 5 A Alarm Hysteresis off on Low Temperature Alert Ambient Alarm 85 C Health Check Error proportional band Integral is measured in minutes per repeat A low integral value causes a fast integrating ac tion Proportional plus Integral plus
4. Derivative PID Control Use derivative control to minimize the overshoot in a PlI controlled sys tem Derivative adjusts the output based on the rate of change in the temperature or process value Too much derivative will make the system sluggish Reduced Overshoot Set Point Proportional Band Proportional Band x 2 Temperature Heating Slows Time EHG SL 10 User s Manual Mounting the Series EHG SL 10 Leg 88 8 mm a 48 4 mm 3 496 in 1 907 in I C Alert Alam txt Cs In range 55 8 mm fel aor SUIE 2 196 in lt EBI a aj Li CS Base Controller Base Controlller front side 81 5 mm _ Interface 3 210 in side SA 48 4 mm G 1 905 in f Interface i l front 0 974 in 88 8 mMmm m 63 6 mm 3 496 in 2 503 in aes a sug Alert Alarm C inrange O 55 8 mm a aor NE 9 2 196 in EBI a i PDE ja Base Controller
5. Series EHG SL 10 Integrated Temperature Controller User s Manual The Series EHG SL 10 is a powerful instrument that in tegrates a temperature process controller high low tem perature alert and power switching with a safety high limit that meets UL 1998 and CE 60730 requirements The optional display and communications modules can be easily upgraded in the field to provide a digital dis play adjustable control parameters RS485 MODBUS communications and other interface features The com pact design inherent reliability and integrated safety limit functions make this control a tremendous value The control is designed for easy integration with Wat low heaters providing additional value to simplify the engineering and component count on new equipment CE compliance and UL recognition will reduce time and costs necessary for global agency testing and validation for OEMs Features and Specifications Standard Base Module 2 Type K Thermocouple Inputs Process Temperature Controller and Safety Limit Isolated Universal Power Supply 100 to 240V ac 50 60Hz Ambient operating temperature range 0 to 70 C Process Temperature Output 10 amp No Arc relay Safety Limit 10 amp relay High Low Temperature Alert 2 amp 30V ac dc Form A relay On Off and PID temperature control algorithm Upgraded via com munications to PID algorithm minimum cycle time 5 seconds O LOW 0600 0050 0000 Rev C Ma
6. h Integrated Temperature Limiter Protective Control Control Relay 2C Limit Relay 2B LTA Relay 2B Installation Category II Pollution degree 2 Rated Supply Source 100 to 240 V ac 50 or 60 Hz IP Code IP20 Rated Power 5 VA Unit power 10 A Resistive Heater Load Meets the essential requirements of the following European Union Directives by using the relevant standards show below to indicate compliance 89 336 EEC Electromagnetic Compatibility Directive EN 60730 1 2001 Al Automatic electrical controls for household and EN 60730 2 9 2002 similar use Temperature Sensing Controls Class B Emissions EN 61000 4 2 1996 A1 A2 Electrostatic Discharge Immunity EN 61000 4 3 2002 A1 A2 Radiated Field Immunity EN 61000 4 4 2004 Electrical Fast Transient Burst Immunity EN 61000 4 5 1995 A1 A2 Surge Immunity EN 61000 4 6 1996 A1 A2 A3 Conducted Immunity EN 61000 4 8 1994 A1 Power frequency magnetic field immunity EN 61000 4 11 2004 Voltage Dips Short Interruptions and Voltage Variations Immunity Variation of power frequency immunity Level 2 Harmonic Current Emissions EN 61000 4 28 2000 EN 61000 3 2 2000 ED 2 EN 61000 3 3 1995 A1 A2 Voltage Fluctuations and Flicker SEMI F47 2000 Specification for Semiconductor Processing Equipment Voltage Sag Immunity Figure R1 1 73 23 EEC Low Voltage Directive EN 61010 1 2001 Safety Requirements of electrical equipment for measurement control and laboratory use Part 1
7. ue dEu Derivative 0 to 999 read write Set the derivative value CE Cycle Time 5 to 60 10 read write Set the cycle time AbE Ambient Temperature read only View the ambient temperature Adr Modbus Device Address 1 to 247 1 read write View the controller release version LALU Modbus Baud Rate 9 600 9 600 read write Select the communication speed 19 200 38 400 EY U Temperature Units read write Select the temperature scale Base Release Version read only View the controller s base release version bPu Base Prototype Version read only View the controller s base prototype version bbu Base Build Number read only View the controllers base build number dru Display Release Version read only View the interface s release version dPu Display Prototype Version read only View the interface s prototype version dbu Display Build Number read only View the interface s build number Watlow Controls 2 EHG SL 10 User s Manual oC Keys and Indicator Lights SL 10 AAR ee A Y Down Arrow Key Decreases the displayed value Mode Key Toggles the display between the set point and process temperature Up Arrow Key Increases the displayed value Flashing s10 fefefe pea es a than 85 C Proportional Control Some processes need to maintain a temperature or process value closer to the set point than on off control can provide Proportional control provides closer control b
8. with Interface Base Controller with front Interface side Panel mount dimensions 45 72 mm 1 800 in drill and tap for ras Mounting bracket The Series EHG SL 10 mounting bracket lets you mount the con ASS troller in any of four angles After a a disconnecting both wiring connec tors gently rotate the controller counterclockwise until it unlocks from the mounting bracket Re ori j ent the controller on the mounting bracket and gently rotate it clock a ale wise until it locks Wiring the Series EHG SL 10 View looking at the connectors Heater L2 m Anan oad L1 m white black Switched a red Thermocouple em relay white black Com Thermocouple and heater connector Power and relay connectors Watlow Controls Ordering Information Series EHG SL 10 Integrated Temperature Controller EHG2 CNTL __ 0000 basic control purchased only as part of a heater assembly DISP with display module COMS with communications module DSCM with display amp communications module Additional Cables A002089 long cable A002092 long terminating cable A002162 short cable A002163 short terminating cable Series EHG SL 10 Watlow Winona Inc 1241 Bundy Blvd Declaration of Conformity Winona MN 55987 USA Declares that the following product Designation Series EHG SL 10 Model Numbers EHG2 CNTL 0000 DISP COMS DSCM Classification Electronic Thermostat wit
9. y 2006 C Integrated Temperature Control Standard Molex Connectors Dimensions configuration depth height basic unit 88 8 mm 40 2 mm 55 8 mm 3 496 in 1 582 in 2 196 in with mounting bracket 88 8mm 48 4mm 55 8 mm 3 496 in 1 907 in 2 196 in with communicatons dis 88 8 mm 63 6 mm 55 8 mm play module amp mounting 3 496 in 2 503 2 196 in bracket Agencies UL C UL Listed CE Semi S2 Optional Communications Module Field adjustable set point Access to PID parameters Modbus RTU Communications RS 485 8 character 7 segment LED display User Interface Software The Series EHG SL 10 User s Manual is copyrighted by Watlow Winona Inc May 2006 with all rights re served Patent Pending Watlow Winona 1241 Bundy Boulevard Winona MN 55987 Phone 507 454 5300 Fax 507 452 4507 www watlow com Navigating the Series EHG SL 10 with the Front Panel The three character display normally shows the process seconds This will display the Set Point High Limit temperature Press the Mode Key once to view the Set prompt Press the Mode Key to view the other param Point value The right decimal point will illuminate eter prompts Press the Up Arrow or Down Arrow Key when viewing the Set Point value Press the Up Arrow once to view a parameter s value Press the Up Arrow or Down Arrow Key to change the Set Point Press the or Down Arrow Key to increase
10. y adjusting the output when the temperature or process value is within a propor tional band When the value is in the band the controller adjusts the output based on how close the pro cess 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 swinging as widely as it would with simple on off control However when the system settles down the tem perature 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 Watlow Controls Alarm flashing red Indicates that the process temperature is higher than the Set Point High Limit Alarm value Alert solid red Indicates that the process Outpul temperature is higher than the High Alert Set Point In range solid yellow Indicates that the process temperature is between the High Alert Set Point and Low Alert Set Point values Output green Indicates that the process temperature is below the set point and the output is on Alert Alarm red and In Range yellow If they are flashing together that indicates an Ambient Alarm controller temperature higher If they are flashing alternately that indicates a Health Check Error Control relay Alert

Operation Manual 05/2006

Contents

Download Pdf Manuals

Related Search

Related Contents