INSTRUCTION MANUAL - ElectricalManuals.net
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1. Y WY YY 9 7 5 8 A Gp RE C3 al 33 S2 GA 8 6 4 2 NE a A No NU APPROPRIATE AC OR D C DC POWER SOURCE DS2 T f ESA RE gt A DS1 A Relay ground stud A Not present in Options L and M RESISTOR e DECADE A DC source supplies a maximum of 250 Vdc BOX A DS3 and DS4 not required when Option 3 is 0 DS3 required when Option 3 is 2 DS4 required when Option 3 is 1 or 3 A 1 4 W Resistor is 10 ohms for copper RTD 100 ohms for platinum D2817 10 A If relay has current operated target obtain minimum trip current by adding Figure 5 1 Temperature Relay Test Setup Range of decade box is zero to 10 ohms for copper RTD zero to 100 ohms for platinum BE1 49 Operational Test Step 7 Set UPPER TEMP LIMIT control to the upper temperature limit to be tested Step8 Adjustresistor decade box for greater resistance until an upper temperature limit trip indication DS1 is observed The chart below presents the trip indication for all relay output options On relays with target option A target will also indicate trip On relays with target option B target will indicate trip if current through terminal 1 is at least 0 2 A Trip Indications Step 8 OUTPUT Cc J L T OPTION om o Jia fo Step 9 Read resistance from decade box Refer to Figure 5 2 Temperature Resistance to verify the temperature at which the trip occurred Step 10 Adjust UPPER TEMP LIMIT C as necessary and repeat steps 8 and 92. Eatch Optional aent weU Re ie Oe pele tleh Bate ale te na black 3 2 Output Drivers see esata sieges ea a DR 3 3 Output Relay xs ee Y GG ER Yd GR A y GE YL je e 3 3 Target Indicators ea S doa tad Wan haine pa 3 3 INSTALLATION ue ee WW a ea 4 1 GENERAL mn Sue send aged dt Teak a YD 4 1 RELAY OPERATING PRECAUTIONS 4 1 DIELECTRIC TEST rv peli TG DAU Pata ie ta y A 4 1 MOUNTING senioare WEL DLAWD DDAU LED UD LOU UR 4 1 CONNECTIONS Uu ai tans Gas Tada ae Beate tds Gh 4 1 ADJUSTMENTS a eu dec aah Aaa Moga aie DYU tee eda 4 2 OPERATIONAL TEST ici ts jase cere y n 5 1 INTRODUCTION irreali dieta Bind wa ere Ae Uw RO 5 1 POWER SUPPLY STATUS OUTPUT OPTION 2 S 5 1 OPERATIONAL TEST OF UPPER TEMPERATURE LIMIT TRIP 5 1 OPERATIONAL TEST OF LOWER TEMPERATURE LIMIT TRIP 5 4 TRIP POINT SELECTION EXCEPT OUTPUT OPTIONS LAND M 5 5 TRIP POINT SELECTION OUTPUT OPTIONS LAND M 5 6 MAINTENANCE 2 nuu wn ak de ak watches edhe 6 1 GENERAD sporadici Nei arg gene raji oboa ai klu ee ul 6 1 STORAGE cvs hen NG tan wit Beenie GWY DAGU UO 6 1 MANUAL CHANGE INFORMATION 7 1 CHANGES cewri Gabba tte sente ME fie eyes 7 1 BE1 49 Introduction This page intentionally left blank SECTION 1 GENERAL INFORMATION GENERAL The BE1 49 Temperature Relay is a solid state device that monitors the temperature of a remotely located
3. Before performing the following tests refer to the relay operating precautions in Section 4 Installation POWER SUPPLY STATUS OUTPUT OPTION 2 S Step 1 With the unit in a powered up condition verify that the power supply status output contact is energized open terminals 11 and 12 Step 2 Remove input power and verify that the status output contact closes Restore input power OPERATIONAL TEST OF UPPER TEMPERATURE LIMIT TRIP Step 1 Connect the relay as shown in Figure 5 1 Step 2 Set the resistor decade box for minimum resistance Step 3 Set LOWER TEMP LIMIT C control to 60 Step 4 Set UPPER TEMP LIMIT C control to 190 Step 5 With relay connecting plug s in place apply appropriate operating power to relay Step 6 Observe that the test setup indicators are ON or OFF as listed in the chart which follows Test Setup Indicators Step 6 OUTPUT Cc J L T Ee e Ds2__ OFF OFFOFFON fore on oFF ON ON ore OPTION 3 DS3 DS4 BE1 49 Operational Test 5 1 07 09 98 parallel resistance to DS1 and DS2 Omit DS2 when testing relays equipped with output options L or M DS3 DS4 o el an 48 D UPPER TEMP TRIP CIRCUIT AUXILIARY CONTACTS LOWER s TEMP TRIP CIRCUIT RTD CURRENT SOURCE fi POWER am SUPPLY D lt RID SENSE AO
4. and 9 to the RTD Each of the four wires should have less than 20 ohms of resistance If less than rated temperature accuracy is acceptable terminals 6 and 7 may be jumpered together and terminals 8 and 9 jumpered together The relay circuitry is connected to the case terminals by removable connecting plugs 1 for 10 terminal cases 2 for 20 terminal cases Removal of the connecting plug s opens the NO trip contact circuit and shorts the NC trip contact circuit before opening the power and sensing circuits ADJUSTMENTS The relay has been calibrated at the factory and it is strongly recommended that the calibration adjustments not be disturbed If however relay pickup accuracy is suspect for any reason remove the relay from service and check the temperature settings using the procedures given in Section 5 of this manual Le 6 65 168 91 D1427 01 VSD Y 12 04 01 Figure 4 1 S1 Case Outline Dimensions Front View 4 2 BE1 49 Installation 1 95 6 19 49 53 157 2 10 32 SCREWS D2856 23 06 15 99 2195 l MOUNTING PANEL Figure 4 2 S1 Case Single Ended Semi Flush Mounting Outline Dimensions Side View BE1 49 Installation 4 3 1 95 6 19 49 53 157 2 MOUNTING PANEL 5 16 18 STUD 2 PLACES 25 CASE A 6 4 DETAIL A A SHOWING THE ADDITION OF WA OVER THE BOSS TO TIGHTEN RELAY AGAINST THE PANI MOUNTING PANEL 10 32 SCREWS i TERMINAL
5. 60 Set UPPER TEMP LIMIT C control to 190 With relay connecting plug s in place apply appropriate operating power to relay Observe states of test setup indicators as listed in the following chart BE1 49 Operational Test Test Setup Indicators Step 6 a AA OPTION ose orr orr orr on ore ou orr on on ore OPTION 3 DS3 DS4 Step 7 Set LOWER TEMP LIMIT C control to the lower temperature limit to be tested Step 8 Gradually increase the decade box resistance until a lower temperature limit trip indication DS2 is observed The chart below presents the trip indications for all relay output options Trip Indications Step 8 OUTPUT Cc J L T OPTION Ds on on on orF oN orF on on orr on Step 9 Read resistance from decade box Refer to Figure 5 2 Temperature Resistance to verify the temperature at which the trip occurred Step 10 Adjust LOWER TEMP LIMIT C as necessary and repeat steps 8 and 9 until lower temperature limit trip occurs at desired temperature Step 11 Determine the resistance that corresponds to a level 109C below the lower limit setting from Figure 5 2 then adjust resistor decade box for resistance value obtained Observe relay resets by the indication in chart below Reset Indication Step 11 OUTPUT CN aeee on oFF TRIP POINT SELECTION EXCEPT OUTPUT OPTIONS L and M This procedure provides a method for selecting the upper and lower temperat
6. for lower temperature limits each capable of settings over the range of 60 to 190 C Relay pickup point will not vary more than 3 C for variations in input power or operating temperature within the operating range UL Recognized under Standard 508 UL File E97033 In standard tests the relay has withstood 15 g in each of three mutually perpendicular axes without structural damage or degradation of performance In standard tests the relay has withstood 2 g in each of three mutually perpendicular axes swept over the range of 10 to 500 Hz for a total of six sweeps 15 minutes each sweep without structural damage or degradation of performance In accordance with IEC 255 5 and ANSI IEEE C37 90 one minute dielectric high potential tests as follows All circuits to ground Input to output circuits 2 121 Vdc 1 500 Vac or 2 121 Vdc Qualified to ANSI IEEE C37 90 1 1989 Transient IMmunity and Radiated Susceptibility Gualified to IEC 255 5 Impulse requirements and IEC 255 516 Surge requirements 4 to 149 F 209C to 65 58 F to 1949F 50 C to 90 C 11 lb 5 kg net S1 See Section 4 nstallation for dimensions BE1 49 General Information 1 5 This page intentionally left blank SECTION 2 CONTROLS AND INDICATORS INTRODUCTION Figure 2 1 illustrates the controls and indicators of the BE1 49 Temperature Relay The locators of Figure 2 1 correspond to the locators listed in Table 2 1 Tab
7. lever that extends through the lower left of the relay case front cover BE1 49 Controls and Indicators SECTION 3 FUNCTIONAL DESCRIPTION The following paragraphs and Figure 3 1 provide a functional description of the BE1 49 relay Paddle Operated Shorting Bars _ gt POWER 2 SUPPLY gt POWER SENSOR SUPPLY STATUS fu 7 POWER POWER OPERATING 18 INPUT dl SUPPLY VOLTAGE pd v 19 CONSTANT REFERENCE AUXILIARY CURRENT VOLTAGE OUTPUTS SOURCE SUPPLY A 8 TGT UPPER OUTPUT x miri TEMPERATURE SET OPTIONAL DRIVER rene O p gm 4 gt N COMPARATOR HIGH TEMP R OUTPUT TJA AMPLIFIER D 2 D LOWER OUTPUT E 10 TEMPERATURE gt DRIVER LOWER LOWER COMPARATOR LOW TEMP O TEMP OUTPUT LIMIT A THE BE1 49 TEMPERATURE RELAY REQUIRES FOUR WIRES FOR THE RTD ONE PAIR PROVIDES CONSTANT CURRENT AND THE SECOND PAIR MONITORS THE RTD VOLTAGE DROP THIS CONFIGURATION ELIMINATES MATCHING THE RESISTANCE OF THE LEADS NO BALANCING OF LEAD RESISTANCE OR REGARD FOR WIRE LENGTH IS NECESSARY AS LONG AS THE TOTAL RESISTANCE OF THE WIRING IN THE RTD CIRCUIT IS LESS THAN 20 OHMS 2817 08 07 09 98 Figure 3 1 Functional Block Diagram Power Supply Basler Electric enh
8. resistive temperature detector RTD and provides signals to the protective scheme when the sensed temperature goes above or below predetermined limits A variety of output options provide a selection of latching or non latching types of normally open or closed contacts DESCRIPTION The Basler Temperature Relay supplies a constant current to a remotely located resistive temperature detector and senses the temperature of the detector by measuring the voltage across the resistive element When a pre programmed temperature limit is reached the relay energizes its output relay so that the protection scheme may take appropriate action Programming of the temperature limits is accomplished by adjusting the UPPER TEMPERATURE LIMIT and LOWER TEMPERATURE LIMIT controls on the relay front panel Each control is adjustable over a range of 60 to 190 C The effect on the protection scheme of exceeding the control setting limits of the relay is defined by the output option selected Table 1 1 shows the available output options The dotted horizontal lines represent hypothetical upper and lower temperature limit settings The circled numbers represent relay case terminals A target that indicates when the upper temperature limit has been exceeded is optionally available and may be either internally operated or current operated The current operated target reguires a minimum of 0 1 A to flow in the trip circuit for proper operation The internally controlled
9. until upper temperature limit trip occurs at desired temperature Step 11 On relays with output options J L M R S and T adjust resistor decade box for 0 96 ohms For all other relays determine the resistance that corresponds to a level 10 C below the upper limit setting using Figure 5 2 then adjust resistor decade box for the resistance value obtained Observe that relay resets per indication chart below Reset Indications Step 11 OUTPUT Cc J L T OPTION OPTION 3 DS3 BE1 49 Operational Test 5 3 180 170 160 150 140 130 120 gt S e 110 amp 100 90 TEMPERATURE IN DEGREES CELSIUS 70 4 80 70 60 50 40 COPPER 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 PLATINUM 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 500 550 600 65 0 70 0 D2817 12 07 07 98 RESISTANCE IN OHMS ABOVE 10 OHMS COPPER OR ABOVE 100 OHMS PLATINUM Figure 5 2 RTD Temperature Resistance Graph OPERATIONAL TEST OF LOWER TEMPERATURE LIMIT TRIP Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 5 4 NOTE The operational test for the lower temperature limit trip is not reguired on relays with output options L and M The lower trip on these relays is given in Step 3 page 5 1 Connect the relay as shown in Figure 5 1 Set the resistor decade box for 0 0 ohms Set LOWER TEMP LIMIT C control to
10. 5 2 84 72 1 I ea TE 8 25 8 63 209 6 219 1 31 4 13 109 5 104 8 Y 25 6 35 DIA zm 4 PLACES lie Lao oi 77 0 cu ee D1427 04 154 0 1 23 93 Figure 4 8 S1 Case Panel Drilling Diagram Semi Flush Mounting BE1 49 Installation 4 9 4 10 Figure 4 9 S1 Case Single Ended Projection Mount Panel Drilling Diagram Rear View BE1 49 Installation 5 25 50 i2 7 TYP 133 4 i El 20 12 69 1 47 t ETRE al 1 00 25 4 25 4 2 6 4 108 7 3 20 1 63 81 3 41 4 A 1 16 29 5 1 A 68 17 3 1 16 ca 29 5 3 20 Ga 81 3 IR 3 58 NUR TE ki 57 9 41 4 63 16 0 DIA 1082 uki nl 3 PLACES TYP i JO 2 sa dil 17 5 9 Mi i es Oo a Su 75 19 1 DIA 25 4 6 4 za 20 PLACES 66 8 5 25 D1427 05 i 133 4 i 2 17 93 Figure 4 10 S1 Case Double Ended Projection Mounting Panel Drilling Diagram Rear View BE1 49 Installation 4 11 ESE Ole VOLTAGE 2 RTD SENSING 2 G NDED RTD A rel suilt before A relay built beforer Refer to the power supply ELECTRICALLY ISOLATED May be used with any powe TRIP BUS e y ni NI O TARGET PA Figure 4 11 DC Connecti
11. 5 SPDT auxiliary contact output F Semi flush mounting SENSING INPUT My ra TYPE OUTPU TIMING TARG OPTION 3 0 None F Semi flush mounting n P Projectio UN 4 mountir g NOTES All relays are supplied in an S1 size case Current operated targets available only when output option F J L N or S is selected D2817 11 SERA l he e upper temperature limit U only 11 25 02 Figure 1 1 Style Number Identification Chart BE1 49 General Information 1 3 SPECIFICATIONS Sensing Method Four wire using a remotely installed 10 ohm copper or 100 ohm platinum resistive temperature detector RTD located within the protected machine Relay supplies constant 40 mA current and senses voltage across the temperature sensitive resistance element Outputs Output contacts are rated as follows Resistive 120 240 Vac make 30 A for 0 2 seconds carry 7 A continuously break 7 A 250 Vdc make and carry 30 A for 0 2 seconds carry 7 A continuously break 0 1 A 500 Vdc make and carry 15 A for 0 2 seconds carry 7 A continuously break 0 1 A Inductive 120 240 Vac 125 Vdc 250 Vdc break 0 1 A L R 0 04 Power Supply One of the six types of power supplies listed in Table 1 2 may be selected to provide internal relay operating power Table 1 2 Power Supply Types And Specifications Nominal Input Input Voltage Burden at Type Volt
12. Basler Electric Highland lllinois In the event the relay is not to be installed immediately store the relay in its original shipping carton in a moisture and dust free environment When the relay is to be placed in service it is recommended that the following operational test be performed prior to installation RELAY OPERATING PRECAUTIONS Before installation or operation of the relay note the following precautions 1 A minimum of 0 2 A in the output circuit is reguired to ensure operation of current operated targets 2 The relay is a solid state device If a wiring insulation test is reguired remove the connecting plugs and withdraw the cradle from its case 3 When the connecting plugs are removed the relay is disconnected from the operating circuit and will not provide system protection Always be sure that external operating monitored conditions are stable before removing a relay for inspection test or service Also be sure that connecting plugs are in place before replacing the front cover 4 Be sure the relay case is hard wired to earth ground using the ground terminal on the rear of the unit Use a separate ground lead to the ground bus for each relay DIELECTRIC TEST In accordance with IEC 255 5 and ANSI IEEE C37 90 one minute dielectric high potential tests as follows All circuits to ground 2 121 Vdc Input to output circuits 1 500 Vac or 2 121 Vdc MOUNTING Relay outline dimensions and panel drilling diagram
13. EXTENSION TYP FOR DETAILED INSTRUCTIONS D1427 28 12 04 01 SEE THE TERMINAL PROJECTION MOUNTING KIT SUPPLIED 2 195 55 75 Figure 4 3 S1 Case Single Ended Projection Mount Outline Dimensions Side View BE1 49 Installation 10 32 SCREWS MOUNTING PANEL 10 32 SCREWS D1427 27 12 04 01 75 19 1 2195 55 75 Figure 4 4 S1 Case Double Ended Semi Flush Mounting Outline Dimensions Side View BE1 49 Installation 4 5 4 6 10 32 SCREWS MOUNTING PANEL 5 16 18 STUD 2 PLACES CASE DETAIL A A SHOWING THE ADDITION OF WASI OVER THE BOSS TO TIGHTEN T RELAY AGAINST THE PANEL MOUNTING PANEL 10 32 SCREWS TERMINAL EXTENSION TYP FOR DETAILED INSTRUCTIONS SEE THE TERMINAL PROJECTION P0002 17 01 30 01 MOUNTING KIT SUPPLIED Figure 4 5 S1 Case Double Ended Projection Mount Outline Dimensions Side View BE1 49 Installation 141 3 Be 5 56 D1427 25 12 06 01 9 1 10 2 8 38 212 9 Figure 4 6 S1 Case Single Ended Projection Mount Outline Dimensions Rear View BE1 49 Installation 4 7 141 3 5 56 m D1427 93 S 9 9 9 i 20 12 6 6 8 68 220 7 Y Figure 4 7 S1 Case Double Endea Projection Mount Outline Dimensions Rear View 4 8 BE1 49 Installation 2 69 144
14. INSTRUCTION MANUAL FOR TEMPERATURE RELAY BE1 49 E Basler Electric Highland Illinois SOLID STATE PROTECTIVE RELAY O POWER no 135 140 no 135 140 7 90 2 160 IL 160 75 S175 757 S175 gt 3 Z S 607 90 60 Z 90 UPPER TEMP LIMIT C X1X ATX XOXXX TEMPERATURE BE1 49 LOWER TEMP LIMIT C 2645 02 2 23 97 Basler Electric Publication Number 9 1267 00 990 Revision E 11 02 INTRODUCTION This Instruction Manual provides information concerning the operation and installation of the BE1 49 Temperature Relay To accomplish this the following is provided m Specifications Functional characteristics a Installation m Operational Tests Mounting Information WARNING To avoid personal injury or equipment damage only qualified personnel should perform the procedures presented in this manual BE1 49 Introduction i First Printing 1980 Printed in USA 1980 1998 2001 2002 Basler Electric Highland IL 62249 November 2002 CONFIDENTIAL INFORMATION OF BASLER ELECTRIC COMPANY HIGHLAND IL IT IS LOANED FOR CONFIDENTIAL USE SUBJECT TO RETURN ON REOUEST AND WITH THE MUTUAL UNDERSTANDING THAT IT WILL NOT BE USED IN ANY MANNER DETRIMENTAL TO THE INTEREST OF BASLER ELECTRIC COMPANY It is not the intention of this manual to cover al
15. NS L AND M Step 1 Connect the relay as shown in Figure 5 1 Step 2 Set the UPPER TEMP LIMIT C control to at least 5 C above the intended upper temperature limit trip point Step 3 Set LOWER TEMP LIMIT C control to 60 Step 4 Refer to Figure 5 2 Temperature Resistance to obtain resistance value for upper trip point Step 5 Set decade box for the resistance obtained in step 4 Step 6 Slowly adjust UPPER TEMP LIMIT control counter clockwise until appropriate trip is observed For option L DS1 should go on for option M DS1 should go off The upper temperature limit trip point is now selected Step 7 Refer to Figure 5 2 Temperature Resistance to obtain resistance value for lower temperature limit trip point Step 8 Set decade box for resistance obtained in step 7 Step 9 Slowly adjust LOWER TEMP LIMIT C control counterclockwise until appropriate indication is observed For option L DS1 should go off for option M DS1 should go on The lower temperature limit trip point is now selected 5 6 BE1 49 Operational Test SECTION 6 MAINTENANCE GENERAL Basler relays are static devices which reguire no preventive maintenance other than a periodic operational check The operational test procedure of Section 5 provides an adeguate check to verify proper operation of the relay If the relay fails to function properly contact the Technical Support Services Department of Basler Electric for a return authorization number
16. Relays Open Closed Closed Closed Open Closed Open Open NO H Two relays Closed Open Open Open Closed Open Closed Closed NC J Two relays NO Open Closed Closed Closed Closed Closed Open Open Latching UTL L One relay NO Open Closed Closed Open Latching M One relay NC Closed Open Open Closed Latching N Two relays Open Open Closed Open Open Open Open Closed Upper NO Lower NC P Two relays Closed Closed Open Closed Closed Closed Closed Open Upper NC Lower NO R Two relays Closed Open Open Open Open Open Closed Closed NC Latching UTL S Two relays Open Open Closed Open Closed Open Open Closed Upper NO Latching Lower NC T Two relays Closed Closed Open Closed Open Closed Closed Open Upper NC Latching Lower NO 1 2 BE1 49 General Information SAMPLE STYLE NUMBER The style number identification chart above illustrates the manner in which a relay s style number is determined For example if the style number were P1J A1E BON5F the device would have the following features P RTD sensing output 1 Designed to be used with copper RTD rated 10 ohms at 25 C J Two normally open primary outputs with the upper temperature limit trip contact latching on closure A1 Instantaneous trip timing E Isolated internal operating power obtained from 100 120 Vac or 48 125 Vdc source B One current operated target 0 No Option 1 available N No Option 2 available
17. age Range Nominal B Mid Range 48 Vdc 24 to 150 Vdc C Mid Range 125 Vdc 24 to 150 Vdc 4 5 W 120 Vac 90 to 132 Vac 10 3 VA D Low Range 24 Vdc 12 to 32 Vdc E Mid Range 125 Vdc 24 to 150 Vdc f 4 5 W 120 Vac 90 to 132 Vac 10 3 VA W Mid Range 48 Vdc 24 to 150 Vdc 4 0 W 125 Vdc 24 to 150 Vdc 4 5 W X High Range 250 Vdc 62 to 280 Vdc 5 2 W 240 Vac 90 to 270 Vac 14 0 VA Type D power supply initially requires 14 Vdc to begin operating Once operating the voltage may be reduced to 12 Vdc and operation will continue t Prior to 1996 Type E power supply accepted only ac input power See the power supply discussion in Section 3 Functional Description Target Indicator A magnetically latched manually reset target indicator is optionally available to indicate that the output has tripped An internally operated or current operated target may be specified A current operated target reguires 0 2 A in the output trip circuit to actuate and trip circuit current must not exceed 30 A for 0 2 seconds 7 A for 2 minutes and 3 A continuous A current operated target may be selected only when normally open NO output contacts have been specified 1 4 BE1 49 General Information Temperature Adjustment Range Pickup Accuracy UL Shock Vibration Isolation Surge Withstand Capability Temperature Operating Range Storage Range Weight Case Size Two independently adjustable temperature controls one for upper and one
18. anced the power supply design for unit case relays The new design created three wide range power supplies that replace the six previous power supplies Style number identifiers for these power supplies have not been changed so that customers may order the same style numbers that they ordered previously The first newly designed power supplies were installed in unit case relays with EIA date codes 9638 third week of September 1996 The new power supply design is indicated by a circuit board part number of 9 2757 XX XXX The older power supply design is indicated by a circuit board part number of 9 1431 XX XXX A benefit of the new design increases the power supply operating ranges such that the 48 125 volt selector is no longer necessary Specific voltage ranges for the three new power supplies and a cross reference to the style number identifiers are shown in Table 3 1 Table 3 1 Wide Range Power Supply Voltage Ranges Power Supply Style Chart Identifiers Nominal Voltage Voltage Range Mid Range B C E W 48 125 Vdc 24 to 150 Vdc 120 Vac 90 to 132 Vac High Range x 125 250 Vdc 62 to 280 Vdc 120 240 Vac 90 to 270 Vac 14 Vdc is required to start the power supply BE1 49 Functional Description 3 1 Relay operating power is developed by the wide range isolated low burden fly back switching power supply Nominal 12 Vdc is delivered to the relay internal circuitry Input source voltage for the power supply is not polarity sensit
19. before returning the relay for service STORAGE This protective relay contains aluminum electrolytic capacitors which generally have a life expectancy in excess of 10 years at storage temperatures less than 40 C Typically the life expectancy of an electrolytic capacitor is cut in half for every 10 C rise in temperature Storage life can be extended if at one year intervals power is applied to the relay for a period of 30 minutes BE1 49 Maintenance 6 1 This page intentionally left blank SECTION 7 gt MANUAL CHANGE INFORMATION CHANGES This section contains information concerning changes to current and previous editions of the manual The substantive changes are summarized in Table 7 1 Table 7 1 Instruction Manual Revisions Deleted reference to Service Manual 9 1267 00 620 Updated the 16871 07 98 Dielectric Test information Changed Input Voltage Range and Burden Data in Power supply table in Specifications Section 1 Corrected Style Chart by changing power supply type X from 230 Vac to 240 Vac Added new power supply information to Section 3 in Power Supply paragraph starting with Basler Electric enhanced the power supply design Added new dimension figures to include all options available S1 Single Ended and Double Ended and both mounting positions Added power supply status and terminal connections to Connection Diagram Changed the symbol for case ground in Figure 5 1 Changed the format
20. ive A red LED lights to indicate that the power supply is functioning properly NOTE If a relay has an older power supply as indicated above the RTD measuring circuit is not isolated from relay input power terminals 3 and 4 If the RTDs are grounded and the relay power supply is the old style only a Type E power supply may be used Old style Type E power supplies included an isolation transformer that permitted the RTDs to be grounded Old style power supplies accepted only ac input power new style power supplies accept both ac and dc input power Power Supply Status Output Option 2 S The power supply status output relay is energized and its NC output contact is opened when power is applied to the relay Normal internal relay operating voltage maintains the power supply status output relay continuously energized with its output contact open If the power supply output voltage falls below the reguirements of proper operation the power supply output relay is de energized closing the NC output contact Constant Current Source The constant current source provides a regulated 40 mA to the external RTD This circuit is relatively unaffected by changes in the ambient temperature Since resistance of the RTD varies directly with temperature 40 mA through the RTD develops a voltage which is proportional to RTD temperature See Section 5 for a graphical representation Amplifier The amplifier monitors the voltage across the RTD and pro
21. l details and variations in eguipment nor does this manual provide data for every possible contingency regarding installation or operation The availability and design of all features and options are subject to modification without notice Should further information be reguired contact Basler Electric Company Highland Illinois BASLER ELECTRIC ROUTE 143 BOX 269 HIGHLAND IL 62249 USA http www basler com info basler com PHONE 618 654 2341 FAX 618 654 2351 ii BE1 49 Introduction SECTION 1 SECTION 2 SECTION 3 SECTION 4 SECTION 5 SECTION 6 SECTION 7 CONTENTS GENERAL INFORMATION 1 1 GENERAL wan Sr allen TY RR wo GA GU ve aoa dod 1 1 D SERIPTION cgil Adee DG A DAU GOL 1 1 MODEL AND STYLE NUMBER 1 1 SAMPLE STYLE NUMBER ee ale GYDA UA 1 3 SPECIFICATIONS 47 Sub pedal gets DR fat pale ene gwn daa end 1 4 CONTROLS AND INDICATORS 2 1 INTRODUCTION i ee iaa pattie at An a a Yw 2 1 FUNCTIONAL DESCRIPTION 3 1 INTRODUCTION As aos rinde pra Reus prek aii era a e 3 1 POWEf SUPPIV dra reni A 3 1 Power Supply Status Output Option 2 S 3 2 Constant Current Source 3 2 AMPHOE pira pei NR A a 3 2 Reference Voltage Supply 3 2 Upper and Lower Temperature Comparators 3 2
22. le 2 1 lists and describes each control and indicator SOLID STATE PROTECTIVE RELAY eo O XIX ATX XOXXX O Kh EMPERATURE 25 02 Figure 1BE1 49 Controls and Indicators Table 2 1 BE1 49 Control and Indicator Descriptions A LOWER TEMP LIMIT C Control Determines the RTD temperature that will be the lower limit for the relay UPPER TEMP LIMIT C Control Determines the RTD temperature that will be the upper limit for the relay C POWER Indicator A red light emitting diode LED lights when the relay power supply is supplying a nominal 12 Vdc to the relay circuitry BE1 49 Controls and Indicators 2 1 2 2 Target Indicator Target Reset Lever An overtemperature condition as set by the UPPER TEMP LIMIT C control trips the normally black target indicator to red The target is magnetically latched and may be manually reset by the target reset lever after the overtemperature indication is terminated Depending on the option supplied the temperature indication may be terminated when the over temperature condition has ended or when the RTD temperature has fallen below the lower temperature limit as set by the LOWER TEMP LIMIT C control on relays with a latching type of output The target indicator is a magnetically latched device Therefore the target must be returned to its normal black position after an upper temperature indication is terminated by pushing up on the reset
23. of the manual Updated the figures in Section 4 to reflect new covers Corrected error 15559 12 01 in Figure 1 1 option 3 choices were changed from O 1 2 and 3 to O 1 2 and 5 Additions to the manual clarified that pre 1996 relays with Type E 19417 11 02 power supplies and all post 1996 relays are compatible with grounded RTDs BE1 49 Manual Change Information 7 1 This page intentionally left blank E Basler Electric ROUTE 143 BOX 269 HIGHLAND IL 62249 USA http www basler com info basler com PHONE 1 618 654 2341 FAX 1 618 654 2351
24. on Diagram 4 12 Description LEGEND 52 52 Te F 52a BREAKER AUX RTD RESISTIVE TEM A AN EXTERNAI VOLTAGE A OPTIONAL OUTPUT CONT BE1 49 Installation TEMPERATURE APERATURE AUX RELAY BREAKER BREAKER TRIP ARY CONTAC DEVID LIARY RELAY ACTS RNALLY OPERATED RATED TARGE SECTION 5 OPERATIONAL TEST INTRODUCTION Operational test procedures are provided in this section for use in verifying operation of the temperature relay and for selecting desired upper and lower temperature limit trip points Temperature calibrations performed on the bench may be affected by the resistance of the relay to RTD wiring in the field installation This effect is minimized by using the 4 wire sensing connection shown in Figure 4 11 These variations will be on the order of 1 5 C or less provided the field wiring is held at 20 ohms or less per lead For greater accuracy it is suggested that a resistance eguivalent to that of the RTD current supply wiring be inserted in the test setup If a relay fails an operational test refer to Section 6 Alternatively the relay may be returned to the factory for repair When returning the relay to the factory ship the entire relay cradle assembly preferably in the case Some of the steps in the following procedures call for observations that are dependent on the output option supplied A table of observable results is provided with those steps CAUTION
25. s are supplied in Figures 4 1 through 4 10 CONNECTIONS Incorrect wiring may result in damage to the relay Be sure to check model and style number against the options listed in the Style Number Identification Chart before connecting and energizing a particular relay Connections should be made with 14 AWG stranded wire or better Typical external connections are shown in Figure 4 11 For internal connections refer to Section 3 Functional Description NOTE Be sure the relay case is hard wired to earth ground with no smaller than 12 AWG copper wire attached to the ground terminal on the rear of the relay case When the relay is configured in a system with other protective devices always use a separate lead to the ground bus from each relay BE1 49 Installation 4 1 To prevent an inductive overload of the relay contacts it is necessary to break the trip circuit externally through the 52a contacts see Figure 4 11 Terminals 3 and 4 are external relay power supply voltage inputs and are not polarity sensitive Terminals 6 and 8 are the constant current supply to the RTD CAUTION If a relay built before mid 1996 is used with grounded RTDs the relay must use a Type E power supply Refer to the power supply discussion in Section 3 Functional Description Terminals 7 and 9 are the voltage sensing inputs to the relay To achieve the rated temperature accuracy for the relay a wire should be connected from each of terminals 6 7 8
26. target MUST be specified if NC output contacts are specified The relay assembly is mounted in a drawout cradle and enclosed in a standard utility style case Individual circuit components are accessible by removing the individual printed circuit boards from the relay cradle and using an extender board Basler part number 9 1655 00 100 to test or troubleshoot MODEL AND STYLE NUMBER The electrical characteristics and optional features included in a particular model BE1 49 Temperature Relay are defined by a combination of letters and numbers that make up its style number The model number followed by its style number appears on the front panel drawout cradle and inside the case assembly The style charts represented by Figure 1 1 lists all available options and relates them to the style number system Upon receipt of a temperature relay be sure to check relay style number against the requisition and packing list to see that they agree BE1 49 General Information 1 1 The call outs in the following figure are referred to in Table 1 1 UPPER TEMPERATURE UMIT UL a AS UN cL UD ee ACTUAL RASE al LOWER TEMPERATURE RA o gt o o o o PE iu VU LIMIT LTL D2718 13 07 10 98 OPERATING POWER ON Output Style Operating power Temperature Temperature Temperature Temperature off or operating greater than LTL greater than drops below drops below power on and but less than UTL UTL LTL temperature is less UTL than LTL F Two
27. unctional Description Output Drivers Two Darlington amplifiers are provided as output drivers in the relay Each amplifier receives the output current from an associated comparator and amplifies it to provide sufficient current to drive the selected output device An inverter is provided in the input to the lower limit output driver to cause it to energize the output relay when the lower limit is exceeded Output Relay A wide variety of relay contact arrangements are available The contact arrangement is specified by the OUTPUT letter in the relay style number Refer to Figure 1 1 for a list of all of the available output options Target Indicator An optional target indicator on the front panel is tripped and magnetically latched when the upper temperature limit is exceeded It may be reset manually after the upper temperature limit output is de energized BE1 49 Functional Description 3 3 This page intentionally left blank SECTION 4 INSTALLATION GENERAL When not shipped as part of a control or switchgear panel the relays are shipped in sturdy cartons to prevent damage during transit Immediately upon receipt of a relay check the model and style number against the reguisition and packing list to see that they agree Visually inspect the relay for damage that may have occurred during shipment If there is evident damage immediately file a claim with the carrier and notify the Regional Sales Office or contact Customer Service at
28. ure limit trip points The lower trip point is selected first If only the upper trip selection is desired perform steps 1 3 9 10 and 11 Step 1 Connect the relay as shown in Figure 5 1 Step 2 Setthe LOWER TEMP LIMIT control to at least 10 C above the intended lower temperature limit trip point Step 3 Set UPPER TEMP LIMIT C control to 190 BE1 49 Operational Test 5 5 Step 4 Set resistor decade box for minimum resistance Step 5 With relay connecting plug s in place apply appropriate operating power to relay Step 6 Refer to Figure 5 2 Temperature Resistance to obtain resistance value for lower trip point Step 7 Set decade box for resistance value obtained in step 6 Step 8 Slowly adjust LOWER TEMP LIMIT C control counter clockwise until trip indication in chart below is observed The lower temperature limit trip point is now selected Lower Temperature Limit Trip Point Selection Step 8 OUTPUT Cc J T OPTION Step 9 Refer to Figure 5 2 Temperature Resistance to obtain resistance value for upper temperature limit trip point Step 10 Set resistor decade box for resistance obtained in Step 9 Step 11 Slowly adjust UPPER TEMP LIMIT C control counter clockwise until trip indication in chart below is observed The upper temperature limit trip point is now selected Upper Temperature Limit Trip Point Selection Step 11 OUTPUT AN Casse ono Da bee a ba CEE TRIP POINT SELECTION OUTPUT OPTIO
29. vides a voltage level signal to both the upper and lower temperature limit comparator stages Reference Voltage Supply The reference voltage supply provides a regulated voltage to the UPPER TEMPERATURE LlMIT and LOWER TEMPERATURE LIMIT front panel controls Each of these controls is a potentiometer and functions as a variable voltage divider The position of the potentiometer wiper determines a reference voltage for one input of the corresponding comparator circuit Upper And Lower Temperature Comparators Two similar comparators in the relay each compare the amplified voltage across the RTD with a dedicated reference voltage established by the setting of a front panel control The upper temperature comparator provides an output current to its associated driver circuit when the RTD voltage exceeds the reference voltage from the UPPER TEMPERATURE LIMIT potentiometer The lower temperature comparator provides an output current to its associated driver circuit when the RTD voltage is less than the reference voltage from the LOWER TEMPERATURE LIMIT potentiometer Latch Optional A latching function is optionally available for the upper temperature output When this latch is selected the upper temperature output will latch in its energized condition when the upper temperature limit is exceeded The output will then remain latched until the RTD temperature falls below its lower limit as determined by the lower temperature comparator 3 2 BE1 49 F
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