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1. 1 POWER 120 VAC and SWITCH Attach the power supply here The SWITCH applies power to the unit 2 INPUT OVERCURRENT PROTECTION Provides protection to the circuit in the event of internal failure Should this breaker trip repeatedly the unit likely has an internal fault and requires service 3 CURRENT OUTPUT SHUNT Provides a test point for connecting an reste when performing calibration testing The white shorting plug must be ins rted i jacks when an external ammeter is not connected or else the current outp ill function 4 ACTUATOR TEST Provides a controlled low voltage dc source to be testing the STIII tripping actuator 5 OUTPUT OVERCURRENT PROTECTION Provides protection agains the output 6 STATIC TRIP terminal strip Attach the fanning strip from os opp for ort circuits on ing tested without ite the end where ck the fanning strip hment of the fanning a circuit breaker here Note Pin 1 is the end of the fanning s the wire bundle is secured The peg adjacent to Pin 1 se from being attached backwards Refer to Figure 3 for prape Strip 7 OUTPUT 15 Molex connector Attach the test ca tests where the STIII is attached to a circuit bre properly attach the test cable 8 STATIC TRIP 25 pin DB connector Atta ter cable to this connector The C other end of the adapter cable goes to the dem connectors on the front of the e The test cable is used for igure2. Testing the STiti Actuator AWARNING High Speed Moving Parts Can cause death or serious injury NY circuit s clear of Discharge the springs before attemp perfom any inspection or adjustment breaker operating mechanism Ke the mechanism if exercising th the test eaker during lt actuator is mounted the a om the STIH by disconnecting the e The actuator may be tested either on or off the bre breaker it is necessary to disconnect the actuat fanning strip from the terminal block Attach the red and black ieads from the rt corresponding binding posts on the PTS 5 Ignore the blue lead R the breaker r ensure the plunger is pushed in by pushing on the e actuator latches A fair amount of finger pressure is actuator away from all ferrous objects during the test as the actuator is mounted on the bre if the actuator is not mounted on th end of the rod without the lock required to latch the actuator nearby objects may interfere Wi Press the NEXT butt t Actuator mode Press the START button Accept the default start value of 0 0 Vb NTER The system will inject voltage into the actuator winding and will automatically increase the voltage until one of the following occurs shes the STOP button the test wil stop and the display will indicate iftheo ang display the final voltage lth achieves 10 0 V the test will stop the display will indicate Fail
3. 225 m te T i 5 5 H 1 4 ns 8 502 Issue 3 SIEMENS PTS 5 User Manual 18 Table of Contents Introduction Safety Information General Controls and indicators Test Preparation Long Time Pickup Test Short Time Pickup Test Ground Fault Pickup Test Instantaneous Pickup Test Long Time Delay Test Short Time Delay Test Ground Fault Time Delay Test Zone Selective Interlock Tests Therma Memory Testing Testing the STIII Actuator Calibration Repair of Static Trip Devices R ALL DETAILS OR VARIATIONS IN POSSIBLE CONTINGENCY TO BE MET IN ATION OR MAINTENANCE SHOULD FURTHER ARTICULAR PROBLEMS ARISE WHICH ARE RCHASERS S PURPOSES THE MATTER MENS SALES OFFICE THE CONTENTS OF BECOME PART OF OR MODIFY ANY PRIOR OR OR RELATIONSHIP THE SALES CONTRACT TION OF SIEMENS THE WARRANTY CONTAINED IN THE IS THE SOLE WARRANTY OF SIEMENS ANY IN DO NOT CREATE NEW WARRANTIES OR MODIFY EQUIPMENT NOR TO PROVIDE FOR E CONNECTION WITH INSTALLATION INFORMATION BE DESIRED OR SH NOT COVERED SUFFICIENTLY FO SHOULD BE REFERRED TO THE THIS INSTRUCTION MANUAL SH EXISTING AGREEMENT COM CONTAINS THE ENTIRE OBLI CONTRACT BETWEEN us STATEMENTS CONTI HE THESE INSTRUCTIONS DO NOT PURPOF i THE EXISTING AEN 888 902 6111 www intellirentco com Introduction THIS EQUIPMENT CONTAINS HAZARDOUS VOLTAGES DEATH SERIOUS PER
4. A and the STIII does not trip the test will display will indicate Fall and the ALARM light will tum on i As shown on the table below with the LTD setti the STII should have tripped between 3 500 s and 5 250 s when 1 5 A is applied will show OVERLOAD in the window upon successftil completion of the test s attached to the breaker and the breaker is closed it should tilp at the end of the flay To test another phase press the S b ten to retum to the Idle status and then press Z2 or as desired Observe that the di dicates the selected phase Then press START and then ENTER to test the next pha Test the remaining points on the L ime Delay dial In each case the STIII should trip the breaker within the paranfe isted below Other combinations of tlme delay and pickup current the expected trip time will need to be detennined from the may be tested if desired V tlme current curve EN to load the value and start the test Note that at currents above 2 A long dur testing is rather stressful on the STIII avoid repeated or prolonged testing at the high C LTD Delay 3 Setti Maximum NS 5 250 6 000 9 000 10 000 15 000 17 17 000 25 500 gt 30 000 45 000 This table Is valid for input current of 1 5 A with a Long Time Setting of 0 5 x sensor 888 902 6111 www intellirentco com intelliren Short Time Delay STD Test only if equipped c Set the STill dials as follows ignore any
5. digital timer allows simple verification of the time current tripping characteristics The syst provides a regulated DC voltage to allow functional testing of the tripping actuator The incoming power is converted to a filtered and regulated dc bus From this dc s testing current is generated using a current amplifier regulated by the micropro Or precision digital to analog converter This provides for stable test current ev e incoming line voltage fluctuates This feature helps to eliminate discrepanci line derived current source is used for testing The test current is applied to fho St current a th ay occur if a current nputs on connected to a terminal block on the face of the PTS 5 for standa connection also provides for the trip feedback that stops the clock automatically The scope of this manual covers the operation of the PTS information on the may be found in publication SGIM 3118C Additional info on the RL breaker may be found publication SGiM 3068D These documents are ilable from the nearest Siemens sales office and should be constilted should any questi a to the function of the STIII or RL breaker Note The PTS 5 does not support the Static or earller trip units associated with the LA breaker It Is necessary to utilize 4 to test these legacy trip units Ln ee a 888 902 6111 www intellirentco com Controls and indicators refer to Figure 1 for location
6. a when it goes into Short Time or Ground Fault pickup The second is a signal receiver in the that drives the Short Time and Ground Fault delays to the minimum whenever the 25 mode is enabled and the signal is not present If the ZSI mode is enabled and the signal is present then 4 the Short Time and Ground Fault delays will obey their dial settings The inputs and outputs are connected together using the wiring in the switchgear and the Zone Interlock Couplers Expanders Here is a table that summarizes the behavior of the as pertains ome system SS i 251 Mode 7 Signal ST GF Delay OUT n a Dial Setting IN OFF Minimum IN ON Dial Setting r circuits and ground an ound Fault must be set first However if the fault aker will have to wait through The purpose of ZSI is that it allows greater protection of the b faults In normal selective coordination the delays for Short higher on the mains and tie than the feeders to allow the feede occurs on the bus between the main and feeder then th i a longer delay to clear the fault XN Normally the STD and GFTD are set on the mains L manner higher than the corresponding delays on the feeders When a feed goes into ST or GF pickup it sends the signal to the main breaker STIII The main br receives this signal which causes the main STIII to obey its dial setting Ther ist e main restrains tripping the breaker u til the feeder has a chance to cl
7. display wil indicate Stopped 1 If the current persists for more than 7 minutes stop the display will indicate the A urrent and elapsed time does not trip the test wiil will tum on the STII should have tripped The STili will show GROUND FAULT in is attached to the breaker and the As shown on the fable below with the GF TD settin between 0 100 s and 0 200 s when 0 5A is appli the window upon successful completion of the t breaker is closed it should trip at the end of d p to retum to the Idle status and then press 22 or a cates the selected phase Then press START and ult Delay In each case the STIII should trip the Other combinations of time delay and pickup current pected trip will need to be deterrnined from the oad the value and start the test To test another phase press the STO 3 as desired Observe that the dis then ENTER to test the next phase Test the rema ning points on the breaker within the parameters lis may be tested if desired however time current curve ENS Ground F Tim GF TD D s Setting mum 0 10 0 10 0 200 0 25 0 350 0 40 0 500 This 420 46 valid for Ground Fault Pickup setting of 20 of ground sensor 888 902 6111 www intellirentco com Zone Selective Interlock ZSi Tests There are two parts to the 25 system The first is signal which is issued by
8. fault If however the STIII does not receive ary signal when it goes into ST kup it assumes that the fault is in the bus The STD or GFTD is driven to the minimum main breaker trips in the shortest possible time The system is failsafe in the event of a wir akage in the ZSI wiring or malfunction of the feeder that the absence of the kes the STIII go to its minimum delay lt 888 902 6111 www intellirentco com p Testing the ZSI system In the switchgear Testing the ZSi in the switchgear may be accomplished by building a simple device cand 9 V battery a 1 k O resistor and a DB 18 female connector The purpose of this device is to emulate the feeder breaker going into short time pickup and issuing its restraint signa to the main breaker n f the STIli for this test ff the ill need to be tested with each main or e ZSI signals are set up so that cted to the same bus as the feeder adapter cable from the and 15 connectors o switchgear has more than one main breaker each f tie breaker When switchgear is equipped with a tie they are presented to the main and tie breaker that breaker e breaker then the test would need to be main on the left is restrained The ined The final test would be to ensure that the For example if testing a feeder on the le repeated three times The first test wo second test would be to ensure the tie main on the right
9. one of the folloWi S If the STII goes into IPU the test will stop and the display will s the current value at which was achieved Note that the time is irrelevant fo st as this test only determines the minimum pickup current value for the ement If the operator pushes the STOP button before the tes e test will stop and the display will indicate Stopped if the current achieves 150 of its initial value up go into IPU the test will stop the display will AN on lt As shown on the table below with the IPU setting a STili should have picked up between 1 000 and 1 200 A or 0 20 Note that Ill does not have an indicator for Instantaneous Pickup due to the nature of t ax and does not il and the ALARM light will turn J he will show SHORT CIRCUIT In the window upon successful completion st test another phase press the STOP t retum to the Idle status and then press 2 or Q3 as desired Observe that the display nadi s the selected phase Then press SFART and then ENTER to test the next phase us Pickup dial In each case the STIII should achieve within the param ters sted below To speed up the testing in the higher ranges a starting value closer to the mini y be keyed in after pressing the START button Press ENTER to load the value andgStart the test The 12x and 15x ranges can only be verified for function at the maximum e lue The system can
10. side of the tie is AS NN the instructions above Note that it is not Set up the PTS 5 for a Short Time necessary to actually close the pig hese tests The will indicate its tripped status to the PTS 5 whether or not the C osed Set the STili dials as follo Cy that are not present on the unit under test Perform thetSTD test The STili should trip in the normal range for the 0 40 second delay Set the Zone Interlock switch to IN and perform the STD test again This time the STili should ip within the nonnal range for the 0 08 second delay lug the umbilical from the STili of the tirst feeder in the lineup and insert the test device into e free end of the umbilical that was plugged into the STill Ensure the other end of the 888 902 6111 www intellirentco com umbilical is plugged securely into the connector on the switchgear frame Perform another STD test STIII should now trip at the normal range for the 0 40 second delay Remove the test device from the first feeder and test each of the feeders in turn Remember that when the device is connected the main breaker should delay its trip by approximately 0 40 seconds and when the device is disconnected the main breaker should delay its trip by e approximately 0 08 seconds Testing the ZSI capabilities of a standalone STili whether attached to a MS The ZSI capabilities of a standalone STIII may be verified by obtaining the ZSI C
11. symbol traveling across the display should the unit be left idle for an extended perlod of time e a note of the front panel settings on the so that the STili can be returned to its state after the test Set the STIII configuration switches as follows for all tests unless otherwise noted Thermal Memory OUT Short time l t OUT Zone Interlock OUT 888 902 6111 www intellirentco com een Long Time Pickup LTPU Test Set the STIII dials as follows Ignore any that are not present on the unit under test Long Time Setting 0 5 x sensor Long Time Delay 3 5 s Instantaneous Pickup 15 x sensor amp Short Time Pickup 12 x LT setting Short Time Delay 0 40 Ground Fault Pickup 20 Ground Fault Delay 0 40 s Ensure the adapter cable is connected for this test Press the START button Acc start value of 0 275 A by pressing ENTER The system will inject current into Ph and will automatically increase the current until one of the following o if the STil goes into LTPU the test will stop the display will show which LTPU was achieved and the LTPU light will Illuminate th e time is irrelevant for this test as this test only determines the minimum cutrent value for the Long Time element f the operator pushes the STOP button before the test display will indicate Stopped If the current achieves 120 of its initial value and est will stop and the not go
12. tallation operation and The successful and safe dependanton prop Make the following preparations before t t The breaker must be racked of fe er Dus either to the TEST or DISCONNECT position if the breaker is completely from the cubicle i e itis being bench tested then rotate the racking screw to the position to allow the breaker to be charged and closed i If the is completely re terminal block on the fr a breaker then attach the fanning strip to the Slper Figure 3 If the Is still attached to the breaker connect the era the test connector on the front of the breaker Plug the 25 pin co he adapter cable into the DB 25 connector on the front ins in the 9 pin and 15 pin connectors on the adapter cable into of the STill detach any existing cables from these connectors panel item 8 in amp the sockets AO On only needed for the Long Time Short Time and Ground Pickup first Note tests Plug the po d into the POWER connector on the front panel and into a properly groun ac receptacle Turn on the switch loceted adjacent to the POWER canne unit should perform a self test and then display the followlng Long im ic Phase 1 0 275 Status Idle right comer of the display will show a rotating marker This indicates that the microprocessor is running normally The display will go to screen saver which is a
13. test STOP Stops the selected test Lj ENTER Confinns the entered value for the test parameter blank key This key is used to enter the calibration mode 12 Storage compartment The test leads are stored in this compartment To open the compartment press the latches To secure the compartment press the latch buttons again 888 902 6111 www intellirentco com Figure 1 Panel Layout s Muf de re i gr mnm mn al a AP tem ds Asa Tote aha dit onmes oom m deeft genu Monete ity AULA RE AES trat 015 r 1 Eat Xx medie aua T DIOC ICA Y A gt bersa dude wee wee YEA A d dt mL c9 vrae wer y 195140257 i 6v PST Dnus yc 005 emn 9 LL EX gt Figure 2 Attachment of the test cable to an mounted on a breaker t Attachment of an STill directly to the PTS 5 Figure 3 E QS Test Preparation Hazardous voltage Will cause death serious personal injury and or property damage Only qualified personnel should work on this me after becoming thoroughly familiar with all wa safety notices and maintenance procedur herein and on the devices Tum off power before working on een f this equipment is
14. the STili dials as follows ignore any that are not pre unit under test Long Time Setting 0 5 x sensor Long Time Delay 3 5 Instantaneous Pickup 15 x sensor Short Time Pickup 12 x LT setting Qy Ground Fault Delay 0 40 s Thermal Memory OUT Short Time Delay 0 40 s Ground F auft Pickup 20 The first two tests establish a baseline at the capacitor circuit is not affecting the ability of the trip unit to respond to a sifig rload event utton to select 4 Time Delay mode Press the ent value to 0 550 A by pressing 0 5 5 0 ENTER The Record this time value for later comparison Perfonn the first test by pressing START button Change the defa STIII should trip in about 30 Now change the Therma may switch to IN Perform another LTD test again with a start value of 0 550 A The d trip very close to the same time as the first test Record this time value for later compari The next two test that the capacitor circuit Is correctly accumulating bnef overloads only gmc y switch is set to the IN position when the iS To perfo st press the NEXT button to select Thermal Memory mode Press the gin the test The PTS 5 will inject a current into the STIII with the following 10 seconds of 0 55 A to drive the STIII Into LT Pickup 1 second transition to 0 20 A econds of 0 20 A to cause the LT element to drop out yet still provide enough energy to keep the microproc
15. 2 which shows how to This cable is only necessary for perfo the Long Time Short Time and Ground Fault Pickup tests 9 Indicator lights LTPU amber lights when TilRis in Long Time Pickup mode STPU amber lights whe is in Short Time Pickup mode ALARM red lights w test time duration is exceeded or if there is excessive current on the test leads caused by a ground fault or short circuit O OVLD red lights w trips out in the Long Time Delay test oc Short ts dicate the unit is turned on Time Delay test POWER green Ji 10 Display Provides information fo the user about the test progress 11 Keypad Allows user tas e desired test routine choose parameters for the test as wel as start and st bus routine The keys have the following functions of Li 0 the desired numeric value for the test The decimal point is imp S enter values less than one a leading zero must be included e to enter value 0 275 A the keys 0 2 7 5 must be pressed Backspace clears incorrect numeric entries S lects the application of current to Phase 1 of the trip unit Selects the application of current to Phase 2 of the trip unit NS Selects the application of current to Phase of the trip unit PREV Selects the previous test from the list at the top of the display NEXT Selects the next test from the list at the top of the display START Starts the selected
16. 500 6 1 500 1 800 7 1 750 2 100 8 2 000 2 400 12 3 000 3 600 888 902 6111 www intellirentco com Uoreiirent Ground Fault Pickup GFPU Test only if equipped c Set the STili dials as follows ignore any that are not present on the unit under test Long Time Setting 0 5 x sensor Long Time Delay 30 s Instantaneous Pickup 15 x sensor e Short Time Pickup 2 x LT setting Short Time Delay 0 40 s Ground Fault Pickup 20 N Ground Fault Delay 0 40 s Ensure that the adapter cable is connected for this test Press the NEXT eb Ground Pickup mode Press the START button Accept the default start value of OP by pressing ENTER The system will inject current into the Ground element of the Sili ant will automatically increase the current until one of the following occurs O Ifthe STili goes into the test will stop the display ur current value at which GFPU was achieved and the GFPU light will illuminate Note that the time is irrelevant for this test as this test onty determlnes the ickup current value for the Short Time element If the operator pushes the STOP button before the 1 the test will stop and the display will indicate Stopped If the current achieves 120 of its initial values TII does not go into GFPU the test will stop the display will indicate Fail A RM light will turn on 2092s the STilf should have picked up i he shares the same output signal ickups that the displ
17. Can cause death or serious injury Discharge the springs before attempti perform any inspection or adjustment o breaker operating mechanism Ke the mechanism if exercising the the test as DANGER death serious personal injury and or mage ualffied personnel should work on this equipment ming thoroughly familiar with all warnings 5 notices and maintenance procedures contained ein and on the devices Tum off power before working on this equipment The successful and safe operation of this equipment is dependant on proper handling installation operation and maintenance The use ef a ground fault circuit interrupter protected receptacle ts strongly commended This protection can be provided in the field by the use of an extension cord with integrated GFCI device where a GFCI protected receptacle is not available 888 902 6111 www intellirentco com r The Portable Test Set PTS 5 is designed for performing secondary injection testing of the Static O Trip M overcurrent tripping system utilized on the RL breaker The system is packaged in a briefcase and requires 120 V ac to operate The PTS 5 contains a microprocessor controlled constant current source which enables rapi verification of the performance of the STIII The desired test current may be directly entere a numeric keypad for ease of test configuration The self contained automatically cont
18. F r part number 18 732 790 563 from Siemens customer service or ugh the test is Plug the ZSI itch to the OFF Attach the STIIi to the PTS 5 either by direct connection to the terminal blo cable It is not necessary to attach the 9 pin and 15 pin adapter cable for Signal Tester into the 15 pin connector on the front of the and turn the position to the left Set the STili dials as follows ignore any that are not present vdd Long Time Setting 0 5 x sensa Long Time Delay 30 s Instantaneous Pickup 15 x sensor Short Time Pickup 2 x LT setting Short Time Delay 0 40 s A Ground Fault Pickup 2096 Ground Fault Delay 0 40 s Qv er test Thermal Memory OUT Short time OUT Zone Interlock OUT normal range for the 0 40 second delay Turn STIII should still trip at approximately 0 40 SI Tester will blink when the STIII goes into the Short Time Ground Pickup LED on the front of Perform the STD test The should in the ZSI Tester switch ON and repeat t he seconds Note that the LED on the oy Short Time Pickup which should coin Set the Zone Interlock switch Q the STIII to IN and perform the STD test again This the Static Trip 11 time with the ZSI Tester switeh O e should trip within the normal range for the 0 40 second delay gt perform the STD test once again The now should trip 0 08 second delay Tum the ZSi Tester swi in the nonnal range for
19. SONAL INJURY OR PROPERTY DAMAGE CAN RESULT IF SAFETY INSTRUCTIONS ARE NOT FOLLOWED ONLY QUALIFIED PERSONNEL SHOULD WORK ON OR AROUND THIS EQUIPMENT AFTER BECOMING THOROUGHLY FAMILIAR WITH ALL WARNINGS AND SAFETY NOTICES CONTAINED HEREIN THE SUCCESSFUL AND SAFE OPERATION THIS EQUIPMENT IS DEPENDENT UPON PROPER HANDLING INSTALLATION AND Lo OPERATION QUALIFIED PERSON Q FOR THE PURPOSE OF THIS MANUAL AND PRODUCT LABELS A QUALIFIE ONE WHO IS FAMILIAR WITH THE INSTALLATION CONSTRUCTION AND THE EQUIPMENT AND THE HAZARDS INVOLVED IN ADDITION HE O FOLLOWING QUALIFICATIONS ape ON OF THE Is trained and authorized to energize de energize clear Sy circuits and equipment in accordance with established safety practic b Is trained in the proper care and use of protective equipm Fo ain gloves hard hat safety glasses or face shields flash clothing etc in a ce with established safety practices S 1 trained in rendering first aid Wi DANGER INDICATES AN Qu WILL RESULT IN DEATH DANGER FOR THE PURPOSE OF THIS MANUAL AND cQ C IMMINENTLY HAZARDOUS SITUATION WHIC OR SERIOUS INJURY WARNING FOR THE PURPOSE OF THIS Dua POTENTIALLY tAZARDOUS SITUATI DEATH OR SERIOUS INJURY C d lt Sl LABELS WARNING INDICATES A qs NOT AVOIDED COULD RESULT IN 888 902 6111 www intellirentco com 2 Safety Information AWARNNG High Speed Moving Parts
20. and then ENTER to test the next phase lay dial In each case the STIII should trip the Test the remaining points on the Sh ther combinations of time delay trip current and breaker within the parameters liste Short time Pt mode may be te determined from the time curr STD Short Time Det Setting Minimum 0 08 0 15 0 22 0 30 0 40 0 225 0 330 0 400 0 500 This table is valid for Long Time Pickup setting of 0 5 x sensor with a Short Time Setting of 2 x Long Time currents greater than 1 3 888 902 6111 www intellirentco com Ground Fault Time Delay GFTD Test only if equipped c Set the dials as follows ignore any that are not present on the unit under test Long Time Setting 0 5 x sensor Long Time Delay 30 s Instantaneous Pickup 15 x sensor Short Time Pickup 12 x LT setting Short Time Delay 0 40 s Ground Fault Pickup 2096 Ground Fault Delay 0 10 s Press the NEXT button to select Ground Time Delay mode Press the ST n Accept the default start value of 0 500 A by pressing ENTER The system will inject current into the Ground element of the STII a il matically maintain the current at the preset value unti one of the following occurs If the STill trips the test will stop and the display will show t that the trip occurred tf the operator pushes the STOP button before th t fihi the test will stop and the
21. and the L t willturn on S Watch t tor and press the STOP button when the breaker trips or the plunger pops out if If the breaker fails to trip refer to the breaker instruction manual SGIM 3068D and follow the oubleshooting instructions therein Disconnect the actuator from the PTS 5 and perform the following resistance checks 888 902 6111 www intellirentco com a Red lead to black lead 15 20 O Black lead to blue lead 40 50 O Red lead to blue lead 55 70 O Any lead to ground measured with a standard ohmmeter infinite or If the actuator fails these tests replace it No attempt should be made to repair the actuat the field N lt 888 902 6111 www intellirentco com Calibration The calibration of the current source may be checked using a precision ammeter There sets of calibration points One set is for 0 1 5 A range and the other set is for 1 010 A range Attach a known good to the unit either using the test cables or directly with the ip strip Do not attempt to calibrate the unit using only a short circuit on the output The calibr will not be valid unless the is in the circuit as the presents a non linear load nt source which cannot be duplicated by a simple short circuit connection acros ut Remove the shorting plug and insert a precision ammeter capable of measur desired current into th
22. ay will read STPU for tum on even though the really As shown on the table below with the GPU settin between 0 090 and 0 110 A or 410 Note th and indicator light for Short Time and Ground the status and the STPU status ight on achieved GFPU Note that the Phase buttons are Test the remaining points on the u It Pickup dial In each case the STIli should achieve GFPU within the paramet below To speed up the testing in the higher ranges a starting value closer to the ay be keyed in dft r pressing the START button Press ENTER to load the value test this test 888 902 6111 www intellirentco com r NICen Note that by nature of the Instantaneous function pickup causes a tnp Instantaneous Pickup IPU Test only if equipped c Set the dials as follows Ignore any that are not present on the unit under test Long Time Setting 1 0 x sensor Long Time Delay 30 s amp Instantaneous Pickup 2 x sensor Short Time Pickup 12 x LT setting Short Time Delay 0 40 s N Ground Fault Pickup 20 Ground Fault Delay 0 40 s y It is not necessary to connect the adapter cable to the 9 pin and 15 pin ports for this test Press the NEXT button to select Inst Pickup mode Press the START button A t the default start r value of 1 000 A by pressing ENTER The system will inject current into 1 elementof the and will automatically increase the current until
23. e circuit the STARTkey that the default erated 2 a user defined ed should the calibration To calibrate the iowcurrent set select the Constant Low Current te Press the NEXT and PREV keys tostep through the calibration poigts points are the only valid points allowed for calibration If the current value it is not possible to calibrate and an error message will procedure be attempted at other than a defined calibratio S is only necessary to use Phase urrent source Before 15 minutes to allow the system to Start the test at the selected value by pressing the E 1 foc the calibration as all three phases are driven by attempting calibration let the unit run at 0 5 A fora S stabilize Observe the displayed current on the ammeter compare it to the displayed value If the values do not match within 295 press the whi ed calibration key Enter the four most significant digits of the ammeter readin he ad and press ENTER Repeat the test again at the same cali n point and verify that the current is now within tolerance Repeat the procedure if S Select the next calibration point in ies and perform the calibration procedure again with the next current value Repeat e low and high series points have been calibrated When tinished disconne t er and insert the shorting plug in the jacks N 888 902 6111 www intellirentco com Repair of Static Devices Because of the complexity of the semi co
24. essor running 1 second transition back to 0 55 A and repeat the cycle 888 902 6111 www intellirentco com Inteniren NOTE The Long Time Pickup LED on the STIli does not immediately extinguish when the LT element drops out Therefore it 1 normal for the LTPU LED on the to remain Illuminated even during the low portion of the cycle even though the element is actually dropped out This pattern will repeat until either the trips on Long Time or 225 seconds which is 15 iterations have elapsed or the user pushes the STOP button Since the Thermal Memory switch is IN the capacitor will begin to charge up on each p current ihe STII should trip in about 45 55 seconds Record the time it took the Sik to trip out and compare it to the times recorded previously This time should be longer than t two tests since the overload was not constant NOTE If the PTS 5 times out with t a Memory switch set to IN then the test did not pass To perform the final test change the Thermal Memory switch to OUT saccage Nr Memory test mode and repeat the test This time since the capacitor is o rcuit the time delay gets reset every time the LT element drops out The STIli should go th h all 15 iterations of current pulses this will take 3 minutes 45 seconds without ing If the trips during this test with the Thermal Memory switch set to OUT then t id not pass 888 902 6111 www intellirentco com c O
25. into LTPU the ight will tum on The pickup point may vary from h the LTPU setting at 0 50 the 20 20 to 0 of the dial setting As shown on the table should have picked up between 0 250 and 0 3 he Idle status and then press 22 To test another phase press the STOP butto e selected phase Then press START and 3 as desired Observe that the display indi amp e then ENTER to test the next phase Test the remaining points on the Long Ti LTPU within the parameters listed belo value closer to the minimum may be load the value and stert the D fter pressing the START button Press ENTER to Long Time P Current Minimum A por Time Pickup STPU Test only if equipped 888 902 6111 www intellirentco com Set the STIli dials as follows ignore any that are not present the unit under test Long Time Setting 0 5 x sensor very important Long Time Delay 30 s Instantaneous Pickup 15 x sensor Short Time Pickup 2 x LT setting Short Time Delay 0 40 s amp Ground Fault Pickup 20 Ground Fault Delay 0 40 s Ensure that the adapter cable is connected for this test Press the NEXT button Time Pickup mode Press the START button Accept the default start value of 0 pressing ENTER The system will inject current into Phase 1 of the STIII and increase the current until one of the following occurs If the STII goes into STPU the test will stop the di
26. lt 888 902 6111 www intellirentco com Thermal Memory TM Testing The purpose of the thermal memory functlon is to allow the Long Time element to react to repeated momentaty overloads The thermal memory circuit uses the charge on a capacitor to emulate the heating and cooling of a bimetal element as may be found in a traditional overcurrent relay If the STIII goes into Long Time Pickup but drops out before the time to trip elapses the 4 capacitor will be partially charged After the overioad passes the capacitor will pee 0 discharge f however another LT Pickup occurs before the capacitor discharges th will begin to charge up again and if enough charge accumulates STIli will trip The capacitor may be engaged Thermal Memory switch to the IN position or EOF switch in the OUT position If the capacitor Is disengaged then the Long Ti reset whenever the LT element drops out As long as the current drops back threshold before the LT delay element times out even momentarily the STi Time as the timer resets every time the LT element drops out er gets 5 pickup trip on Long properly The first e Second two tests use TS 5 either directly or A total of four tests need to be performed to ensure the circuit is functio two tests use the standard Long Time Delay test discussed previo the the Thermal Memory test mode The STIII needs to be conn through the test cable The DB 25 Adapter Cable is not ne Set
27. nductor components and circuits and because some of the components are especially selected or matched we strongly discourage field repair of the static trip devices Moreover component failure usually does not show up as visual damage and locating the defective component or components requires specialized techniques Therefore if the tests described in these instructions indicate that a static trip device or the test itself is defective contact your nearest Siemens representative for Instructions on returning the unt factory or other authorized service repair facility Any efforts to attempt to make field will result in voiding all equipment warranties 888 902 6111 www intellirentco com c
28. not sustain sufficient current at these magnitudes long M ek Test the remaining points on the vely determine the trip point Inst Pickup IPU ent Setting s Maximum 2 1 1 200 4 2 000 2 400 6 000 3 600 8 4 000 4 800 12 Verify function 6A 7 2 15 function 888 902 6111 www intellirentco com r Long Time Delay LTD Test Set the STIII dials as follows ignore any that not present on the unit under test O Long Time Setting 0 5 x sensor Long Time Delay 3 5 s Instantaneous Pickup 15 x sensor amp Short Time Pickup 12 x LT setting Short Time Delay 0 40 s Ground Fault Pickup 20 N Ground Fault Delay 0 40 s Accept the Press the NEXT button to select Long Time Delay mode Press the ST use because default start value of 1 500 A by pressing ENTER This value is the easie at thls current value the time delays will equa the dial setting The system will inject current into the Phase 1 element of the STII automatically maintain the current at the preset value until one of the followin O if the trips the test will stop the display will showthe Cunent and elapsed time that the trip occurred if the operator pushes the STOP button before th intshes the test will stop and the display will indicate Stopped If the current persists for more than 7 minute if the current is greater than 1
29. splay will sho which STPU was achieved and the STPU light will illuminate irrelevant for this test as this test only determines the minim the Short Time element current value for If the operator pushes the STOP button before the test ON test wil stop and the display will indicate Stopped If the current achieves 120 of its initial value or th ey one minute and the does not go into STPU the test will stop the dis ill rac Fail and the ALARM light will turn on Note that the Long Time Pickup light on the STIi wi uring this test As shown on the table below with the STPU setting at 2 x LT and th setting at 0 5 x sensor should have picked up between 0 500 and 0 600 A or to the Idle status and then press 2 or To test another phase press the STOP b selected phase Then press START and 23 as desired Observe that the display then ENTER to test the next phase 888 902 6111 www intellirentco com In Test the remaining points on the Short Time Pickup dial In each case the should achieve STPU within the parameters listed below To speed up the testing in the higher ranges a starting value closer to the minimum may be keyed in after pressing the START button Press ENTER to load the value and start the test Short Time Pickup STPU Current 1 Setting Minimum Maximum 2 0 500 0 600 3 0 750 0 900 4 1 000 1 200 5 1 250 1
30. that are not present on the unit under test Long Time Setting 0 5 x sensor Long Time Delay 30 s Instantaneous Pickup 15 x sensor Short Time Pickup 2 x LT setting Short Time Delay 0 40 s C Ground Fault Pickup 2096 N Ground Fault Delay 0 40 s default start value of 1 000 by pressing ENTER Press the NEXT button to select Short Time Delay mode Press the SS pt the ically The system will inject current into the Phase 1 element of the STIII end wi maintain the current at the preset value until one of the following occurs STill trips the test will stop and the display will show th and elapsed time that the trip occurred C If the operator pushes the STOP button before the test h test will stop and the display will indicate Stopped If the current persists for more than 1 minute if th STIH does not trip the test will stop the display will will tum on greater than 1 and the ail and the ALARM light As shown on the table below with the STD setting at TAS STNI should have tripped between 0 080 s and 0 180 s when 1 0 A or greate d The STIII will Show SHORT CIRCUIT in the window upon successful completi est If the STIIl is attached to the breaker and the breaker is closed It should of the delay To test another phase press the STOP retum to the dle status and then press 22 or as desired Observe that the display indieateSthe selected phase Then press START
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