Emerson 350VA Power Supply User Manual
Contents
1. Manual Override Step Press Button Display Meaning 1 do not hold p begin 2 hand on Do not manually override the exerciser unless you 3 h start ho r are sure that the controller has been set for Fi PERE exercise without load see page 5 2 Failure to do m TALS A sstart engins so could result in possible injury if the transfer 5 Day start day switch operates while the enclosure door is open Note Successive pressing displays blocks of days Mon Sat Mon Fri Sat amp Sun 1 is Monday Step Press Button Display Meaning 6 Prog 1 eae 7 begin 1 hand hand on 2 hand O permanent on Press hand 7 2 times cs off 3 hand O permanent off 8 h stop hour 4 hand O back to automatic 9 m stop minute stop engine 10 Day Hop day Daylight Savings Standard Time Change 11 O blinking program set To change to Daylight Savings time Summer time press the Ih button once Clock advances by one hour and 1h appears in display To change to Standard Time Greenwich mean time in UK 1h button again the clock sets back one hour and 1h disappears Middle European time in Germany press the CONTROL FEATURES continued INPHASE MONITOR FOR MOTOR LOAD TRANSFER Inphase monitoring logic controls transfer and retransfer of motor loads so that inrush currents do not exceed normal starting currents It avoids nuisance tripping of circuit breakers and mechanical da2. Press for 15 Sec Set Engine Exerciser Press until light FLASHES Figure 1 7 Standard controls and indicators 2 Voltage Checks First check nameplate on transfer switching device rated voltage must be the same as normal and emergency line voltages A DANGER Use extreme caution when using a meter to measure voltages in the following steps Do not touch power terminals shock burns or death could result Perform steps 1 through 6 at the right Observe the status lights See Figure 1 7 Black circle means light is on O White circle means light is off If necessary adjust voltage regulator on the generator according to the manufacturer s recommendations The Automatic Transfer Switching Equipment will respond only to the rated voltage specified on the Transfer Switching device nameplate Also see page 4 1 for the HI LOW voltage adjust setting in the controller The LOW setting shifts all voltage settings down 4 2 for example 240 V to 230 V 1 4 observe these lights Close the normal source circuit breaker The Normal Transfer Switch Position and the Normal Source Accepted lights should come on Source Accepted Normal Emergency O Use an accurate voltmeter to check phase to phase and phase to neutral voltages pres ent at the transfer switching de vice normal source terminals Close the emergency source circuit breaker Start generator
3. Actuator Actuator Enabled 7 on 50n 20 minute exercise period It occurs immediately when the SET ENGINE EXERCISER push button is pressed Std Timer Actuator Actuator Disabled 7 off 5 on Exercise and held for at least 5 seconds and then at the same time weekly thereafter A 9 volt alkaline battery Duracell MN1604 Everready 522 or Panasonic without 6AM6 is furnished and installed in the controller to Load maintain the setting The battery jumper block must be shifted to the ON position See Figure 4 2 on page 4 2 Fill in day and time set Week Day _____ Time Press to cancel an active exercise Bypass period stops generator Time Delay If Exercise with Load is set retransfers load to Normal then stops generator after min cooldown l l Actuator 8 off Exercise Actuator with Load 8 on C Shaded DIP switches are standard factory settings status light ho tors seo Exerciser Press and hold for 5 sec or until status light blinks rapidly to set exercise period immediately Press until and every week hereafter generator starts light FLASHES If Exerciser with Load is set transfers load to Emergency Figure 5 1 Operator panel pushbuttons and light Select below either Exercise without Load or Exercise with Load according to the setting of DIP switch S1 actuator 8 The load transfers from the Normal source to Emergency source generator and back again if Exercise with Load is selected Exerc
4. TESTING amp SERVICE 000 3 ADJUSTMENTS 0002000 eee 4 CONTROL FEATURES 5 INDEX ws nce vee eee ae back of manual 381333 234 E EMERSON Network Power A typical Catalog Number is shown below with its elements explained Catalog Number Identification Typical D design Series 200 ATS catalog no for a solid neutral 3 pole 100 amp 400 V open type D 200 A 3 100 J 5X design prefix letter Neutral Phase Poles Amperes Voltage Controller A solid 2 single 30 C 208 J 400 5 standard B switching 3 three 70 D 220 K 415 5X if C overlapping 100 E 230 L 440 accessories dered blank none 150 F 240 M 460 ordere 200 G 277 N 480 200 amp 230 A are limited to 480 volts 230 H 380 SECTION 1 The ASCO Series 200 automatic transfer switching equipment ATSE consists of a transfer switching device monitoring and transfer control device controller and membrane controls for door mounting The ATSE is factory tested Installation requires mounting the devices into an appropriate size enclosure and connection of power conductors engine start signal wires and auxiliary circuits Mounting The Outline and Mounting Diagram furnished with the ATSE shows all mounting details and instructions NOTICE Protect the automatic transfer switching equipment from construction grit and metal chips to prevent
5. starts and weekly thereafter Figure 2 1 Membrane controls and indicator lights Retransfer to Normal The sequence for load retransfer to the normal source automatically begins when the voltage sensor detects restoration of the normal source The voltage level must rise above the preset pickup point on all phases before the sensor will accept the normal source When the normal source is accepted by the sensor relay SE begins its timing cycle adjustable 1 sec to 30 min retransfer to normal delay For immediate retransfer press Bypass Time Delay button SE relay is provided with a time delay on pickup to prevent immediate load retransfer to the normal source The delay insures that the normal source has stabilized before reconnection of vital loads If the normal source voltage falls below the present dropout point before the time delay expires the timing cycle is reset to zero If the emergency source fails for more than 4 seconds during the timing cycle ER relay drops out and the load is immediately retransferred to the normal source if that source is acceptable SE relay energizes and ER relay is dropped out The TS coil is energized the transfer switching device oper ates and all switch contacts mains controls auxilia ries reverse position The transfer switching device is now supplying the load from the normal source again Upon retransfer to the normal source NR relay begins its timing cycle unloaded running d
6. terminals V1 and W1 W1 and U1 and U1 and V1 or L2 and L6 for 2 pole switches Gen Set does not stop after load retransfer to the normal source Wait for the 5 minute Unloaded Running Delay to time out Starting control must be in automatic position Trouble Shooting the Motor Load Transfer Feature refer to page 5 3 A DANGER Use extreme caution when using a meter to measure voltages in the following steps Do not touch power terminals shock burns or death 4 could result 1 Connect a voltmeter set for twice system phase to phase voltage between transfer switching device terminals U1 and U2 for 3 pole or L1 and L2 for 2 pole 2 Manually start generator Voltmeter needle should 5 sweep back and forth at a regular rate between 0 and about twice system voltage 3 Press and hold the Transfer Test button The load should transfer to emergency source when meter needle is near 0 volts If transfer does not occur Motor Load Transfer feature is not operating Release the Transfer Test button The load should retransfer back to the normal source after the Retransfer to Normal Delay if used The retransfer should occur when the needle is near 0 volts If retransfer does not occur after the time delay the Motor Load Transfer feature is not operating For immediate retransfer press the Bypass Time Delay button Then disconnect the voltmeter If the problem is isolated to circuits
7. 15 seconds or when the normal source fails Hold the TRANSFER SWITCH TEST button 15 sec or the outage must be long enough to allow for the 1 or 3 sec Momentary Normal Source Outage Delay plus engine cranking and starting time Starting control must be in automatic position Batteries must be charged and connected Check wiring to engine starting contacts Transfer switching device does not transfer the load to emergency source after the gen set starts Wait for Transfer to Emergen cy Delay 0 to 5 min to time out For immediate transfer press the BYPASS TIME DELAY button If Motor Load Transfer is active wait for in phase condition see below Generator output circuit breaker must be closed Generator frequency must be at least 95 of nominal 48 Hz for a 50 Hz system Voltmeter should read at least 90 of nominal phase to phase voltage between transfer switch terminals U2 and W2 or L1 and L5 for 2 pole switches These are factory settings Transfer switching device does not transfer the load to normal source when normal returns or when TRANSFER SWITCH TEST button is released Wait for Retransfer to Normal Delay 1 sec to 30 min to time out For immediate re transfer press BYPASS TIME DELAY button If Motor Load Transfer is active wait for in phase condition see below Voltmeter should read at least 90 of nominal phase to phase voltage between transfer switching device
8. Switch Position light should come on and the Normal light should go off Transfer Switch Position Normal Emergency If the transfer to emergency delay is used the transfer should occurs after a time delay up to 5 minutes For immediate transfer press the Bypass Time Delay button Bypass Time Delay The transfer switching device should transfer back to the Normal position The Normal Transfer Switch Position light should come on and the Emergency light should go off Transfer Switch Position Normal Emergency If the retransfer to normal delay is used the retransfer should occur after a time delay up to 30 minutes For immediate retransfer press the Bypass Time Delay button Bypass Time Delay The unloaded running delay keeps the generator running for 5 minutes cool down period Then the generator should stop and the Emergency Source Accepted light should go off Source Accepted Normal Emergency O SECTION 2 SEQUENCE OF OPERATION Lights show position of transfer switching device Transfer To Emergency Lights show the sources accepted Light for built in The sequence for load transfer to emergency source begins ASCO Power Transfer Switch engine exercise timer gt blinks rapidly when EMERSON button is held 5 sec automatically when normal source voltage falls below the Transfer Switch Position Network Power whi
9. if necessary The Emergency Source Accepted light should come on Source Accepted Normal Emergency Use an accurate voltmeter to check phase to phase and phase to neutral voltages pres ent at the transfer switching de vice emergency source termi nals Use a phase rotation meter to check phase rotation of emer gency source it must be the same as the normal source Shut down the engine genera tor if applicable The Emergen cy Source Accepted light should go off Then put the starting control selector switch on the generator set in the automatic position Close enclosure door Source Accepted Normal Emergency Now continue to 3 Electrical Operation on next page INSTALLATION ASCO Power Transfer Switch continued EMERSON Network Power Transfer Switch Position Normal Emergency O press this button ource Accepted O Normal Emergency Transfer Press for 15 Sec Bypass Test Time Delay Set Engine Exerciser Press until light FLASHES Figure 1 8 Standard controls and indicators 3 Electrical Operation This procedure will check the electrical operation of the Automatic Transfer Switching Equipment Close the automatic transfer switching equipment enclosure door and tighten the screws before you test electrical operation Transfer Test Both normal and emerge
10. latching the right side Reconnect both harness plugs to the controller by aligning and pressing straight in until latches click Close the automatic transfer switching equipment enclosure door and tighten the screws before restoring power 9 Close the enclosure door then restore both sources a Ifthe transfer switching device is in the Normal position first close the normal source circuit breaker then close the emergency source cir cuit breaker b If the transfer switching device is in the Emergency position close the normal source circuit breaker The load will be automatically retransferred to the normal source Then close the emergency source circuit breaker 10 Turn the engine starting control to automatic 4 2 continued o cover thumb latch DES hook on A p leftside l m Figure 4 1 Controller cover latch E EE O af z i a Herth uf O es Ee 8 5 9 volt alkaline 5 S battery
11. malfunction or shortened life of the transfer switching device Mount the transfer switch vertically in the back of the enclosure as shown on the Outline and Mounting Diagram provided Level all mounting points of the rigid supporting structure by using flat washers behind the holes to avoid forced distortion of the transfer switch Mount the membrane controls and the controller on the inside of the enclosure door as shown on the Outline and Mounting Diagram provided The membrane controls must be accessible through a cutout in the door Connect the membrane controls to the right side of the controller with the ribbon cable provided Then connect the transfer switching device harness plugs to the left side of the controller See Figures 1 1 and 1 2 An add on rail is provided for some optional accesso ries If provided mounted it below the controller Then make the connections shown on the Wiring Diagram Grounding Grounding earthing is accomplished by mounting the automatic transfer switching equipment in a metal enclosure Connect the control panel grounding wire lower left side to equipment enclosure or clean earth ground This wire can be connected to the controller s lower left mounting stud Because the controller is mounted on a door a conductive strap must be used between the enclosure and the door This connection provides proper grounding which does not rely upon the door hinges See Figure 1 3 1 1 INSTALLATI
12. position Then close the emergency source circuit breaker b If the transfer switch is in the Emergency position close the normal source circuit breaker The load will be automatically retransferred to the normal source after the Retransfer to Normal Delay For immediate retransfer press BYPASS TIME DELAY button Place the engine starting control in the automatic position 3 1 controller is disconnected TESTING amp SERVICE continued MANUAL LOAD TRANSFER This procedure will manually transfer the load if the Do not manually operate the transfer switching device until both power sources are disconnected open both circuit breakers 1 Open normal and emergency source circuit breakers 2 Use the maintenance handle to manually operate transfer switching device to the opposite source See page 1 4 Manual Operation Test 3 Ifthe transfer switching device is in the Emergency position manually start the engine generator and then close the emergency source circuit breaker TROUBLE SHOOTING Note the control features that are activated or furnished on the switch and review their operation Refer to Section 5 Control Features Proceed with care The automatic transfer switching equipment is energized Table 3 1 Trouble Shooting Checks PROBLEM CHECK IN NUMERICAL SEQUENCE 1 OPERATION 2 GEN SET 3 VOLTAGE Gen Set does not start when the TRANSFER SWITCH TEST button is pressed and held for
13. 1 4 2 5 1 5 2 5 4 E electrical operation 1 5 engine exerciser 5 1 5 2 5 3 engine starting contacts 1 2 Printed in U S A INDEX F failure see trouble shooting 3 2 features see control features frequency pickup and dropout settings 4 1 functional test 1 3 1 4 1 5 H harness 1 1 disconnect plugs 3 1 HELP 800 800 2726 ASCO customercare asco com inphase monitor 5 4 inspection 3 1 installation 1 1 L labels rating cover lights 1 5 5 1 load disconnect feature 5 4 lubrication 3 1 M maintenance preventive 3 1 manual load transfer 3 2 warning 3 2 manual operation 1 3 illustration of 1 3 warning 1 3 motor load transfer feature 5 3 N nameplate cover O operation electrical 1 5 manual 1 3 illustration of 1 3 warning 1 3 sequence of 2 1 P parts 3 1 problem 3 2 programmable engine exerciser 5 2 5 3 R remote control features 5 4 bypass transfer time delay 5 4 inhibit transfer to emergency 5 4 remote test 5 4 remote transfer to emergency 5 4 replacement parts 3 1 S 800 800 2726 ASCO customercare asco com service set engine exerciser 5 1 settings changing 4 1 factory 4 1 frequency 4 1 phase 4 1 time delay 4 1 voltage 4 1 T terminal block 1 3 test functional 1 3 1 4 1 5 time delay adjustment 4 1 gen set cooldown 4 1 how to change 4 2 ov
14. 4 1 ADJUSTMENTS NOTICE Do not make any setting changes while the controller is energized How to Change a Setting 1 Prevent the transfer switching device from operat ing by disconnecting one source first then the other as follows a Ifthe transfer switching device is in the Normal position open the emergency source circuit breaker Turn the engine starting control to off Then open the normal source circuit breaker b If the transfer switching device is in the Emergency position open the normal source circuit breaker Turn engine starting control to test or run Then open the emergency source circuit breaker Disconnect both harness plugs from controller by squeezing the latches Do not pull on the wires Remove cover from the controller by releasing latch on right side with your thumb See Figure 4 1 Locate the appropriate adjustment potentiometer or DIP switch for the setting that you want to change Refer to Table 4 1 and Table 4 2 on page 4 1 and Figure 4 2 Figure 4 3 Figure 44 on page 4 2 Use a small screwdriver to turn the potentiometer clockwise to increase the time delay or counter clockwise to decrease it See Figure 4 3 Use a ball point pen or similar pointed tool to slide the switch actuators left or right so they match the illustration next to the setting left off right on Recheck the setting See Figure 4 4 Install the cover on the controller by hooking it on the left side and
15. J5 battery e on off harness z ot A e SS aa orog OG FB jumper in ibe QM a 5 cap rc mta n P1 4 le tibiae pees retranster Z 4 we OS a eee to normal f E T time delay Se GP i 2 P2 S3 DIP lt a 4 5 N transfer to switch eal gA QUE emergency S1 DIP a oe 3456769 0 H 12 15 16 m Si f time delay switch O O eseseoeoesetged pa O S2 DIP switch Figure 4 2 Location of potentiometers DIP switches battery and battery jumper clockwise to increase P1 or P2 potentiometer counterclockwise to decrease Figure 4 3 Changing time delay potentiometers DIP switches SW1 SW2 SW3 actuator 8 on each DIP switch off lt gt on Figure 4 4 Setting DIP switch actuators SECTION 5 CONTROL FEATURES ENGINE EXERCISERS These timers periodically exercise the emergency engine generator plant They can be set to exercise with or without load transfer or they can be completely disabled The engine generator should be exercised under load once a week for a minimum time period of 20 minutes or follow the recommendations of the engine generator set manufacturer Refer to page 4 2 for location of DIP switches battery provided and jumper block in the controller BUILT IN ENGINE EXERCISER DIP Switch Settings The engine exerciser included in the Series 200 automatic Shean S1 DIP S2 DIP transfer switching device provides a once a week FUNCTION SWITCH SWITCH Std Timer
16. ON membrane controls xN ribbon cut out in enclosure door enclosure door controller must be within a steel enclosure Figure 1 1 Membrane controls and controller mount ing on inside of enclosure door Refer to Outline amp Mounting Diagram for mounting hardware ASCO Power Transfer Switch EMERSON Network Power Transfer Switch Position Source Accepted Normal O Normal Oo Emergency Emergency Transfer Test Bypass Time Delay Figure 1 2 Membrane controls with gasket suitable for IP65 enclosure Set Engine Exerciser 6 Press until light FLASHES Press for 15 Sec 2 plugs for he transfer ribbon cable switching to membrane device controls harness ground ijf connections wire a for control noumma SSA ie pina Se features amp stud Y options Figure 1 3 Controller grounding clean earth wire and other connections NOTICE The controller must be grounded for proper operation INSTALLATION A DANGER De energize the conductors before making any line or auxiliary circuitry connections Be sure that Normal and Emergency line connections are in proper phase rotation Place engine generator starting control in the OFF position Make sure engine generator is not in operation Power connections A Wiring Diagram is furnished with the Series 200 ATSE All
17. Operator s Manual ASCO Series 200 Automatic Transfer Switching Equipment D design 30 through 230 amperes A DANGER DANGER is used in this manual to warn of a hazard situation which if not avoided will result in death or serious injury WARNING is used in this manual to warn of a hazardous situation which if not avoided could result in death or serious injury A CAUTION CAUTION is used in this manual to warn of a hazardous situation which if not avoided could result in minor or moderate injury ASCO Power 50 Hanover Road Florham Park New Jersey 07932 1591 USA Technologies For sales or service call 1 800 800 2726 ASCO www ascopower com CE Note Refer to the outline and wiring drawings provided with your Series 200 ATSE for all installation and connection details and accessories Nameplate rating Label The Series 200 Automatic Transfer Switching Equipment ATSE contains a nameplate rating label which includes data for that specific ATSE It defines the loads and fault circuit withstand closing ratings Refer to the labels on the Transfer Switching device for specific values and use the ATSE only within their limits An experienced licensed electrician should install the ATSE Do not exceed the values on the rating label Exceeding the rating can cause person injury or serious equipment damage TABLE OF CONTENTS section INSTALLATION o raa a 1 SEQUENCE OF OPERATION 2
18. affect the normal operation of the automatic transfer switching equipment This change could allow the load circuits to remain connected to a low voltage source Table 4 2 Voltage and Frequency Settings Oo Shaded DIP switches are standard factory settings of nominal 1 DIP DESCRIPTION LABELS SETTING FACT SET ADJ RANGE SWITCH 95 Actuator 3 off w PU N Pickup 90 90 Actuator 3 on mm v Actuator 1 off aa Actuator 2 off Normal Source Voltage 85 Actuator 1 on gt Actuator 2 off n DO N Dropout ae Actuator 1 off 9 ae Actuator 2 on y Actuator 1 on ie Actuator 2 on mY Emergency Source Volt o Pickup 90 non adjustable age Dropout 75 non adjustable Pickup 95 non adjustable Dropout 85 non adjustable Emergency Source and Raniah F Z ctuator 4 O gt ere 60 50 60 50Hz 60Hz Zz 50 Hz Actuator 4 on n 3 phase Actuator 6 off D Voltage Phases 30 10 30 19 30 1 phase Actuator 6 on o If dropout voltage is set to 90 the pickup voltage must be set to 95 Table 4 3 Transformer Voltage Adjust Low setting shifts all voltage settings down 4 2 for example 240 V to 230 V or 480 V to 460 V DESCRIPTION LABELS FACTORY SETTING ADJUSTMENT S3 DIP SWITCH LOW Actuator 2 off N Voltage Adjust 4 2 T HI HI Actuator 2 on n
19. e the control signal to reset after the same delay as set for the Delay Before Transfer REMOTE CONTROL FEATURES These remote control features require a customer supplied normally closed contact suitable for a 5 V dc low energy circuit Refer to the Wiring Diagram provided with the ATS Activate appropriate DIP switch S2 actuators below Remote Test terminals CP6 7 Remote Transfer to Emergency CP8 9 RTSW S2 DIP SWITCH RT E S2 DIP SWITCH disable Actuator 3 on ov disable Actuator 2 on nv enable Actuator 3 off w enable Actuator 2 off N Bypass Transfer Time Delay CP12 13 Inhibit Transfer to Emergency CP10 11 TD E N BYP S2 DIP SWITCH N E INHIB S2 DIP SWITCH disable Actuator 1 on disable Actuator 4 on MES enable Actuator 1 off enable Actuator 4 off gt A accessories 5 2 5 3 5 4 auxiliary circuits 1 3 B barriers 1 2 battery 4 2 5 1 buttons push 3 1 bypass time delay 1 5 2 1 3 1 C catalog number inside cover cleaning 3 1 conductors preparation 1 2 terminals 1 2 connections engine control contact 1 2 power 1 2 control features 5 1 load disconnect 5 4 motor load transfer 5 4 plant exerciser 5 1 controller control panel 4 1 4 2 codes cover cover removal 4 2 disconnecting 3 1 time delay potentiometers 4 2 D DIP Switches 4
20. eee OO 4 2 hold h then 1234567 military 24 hr press 1h AM 1200 or AM PM 1 QO 12 hr time Note Repeat step 2 to toggle between military blank display and AM PM time hold 1234567 blink hold while 3 clock symbol 0000 setting thru O step 7 1h once do nothing if it 4 if Daylight 1h is Standard Saving Time Time h hold for 5 fast col count 00 00 hour m hold for 6 fast count 00 00 minute Day Mo Tu We Th Fr Sa Su day 8 release blinking time amp date set clock starts Programming E ngine On Off Period s on off button reset cuion om th ON Se Dy OFF wy button program Mo u We Th qua button hour a button display minute clock button button day GRASSUN 4 button Figure 5 2 Exerciser display and push buttons Changing or Checking Time Programs By operating the Prog button the individual commands as programmed can at any time be brought consecutively into the display for revision or checking Revisions are accomplished by programming over the existing programs using the steps at the left Canceling Time Programs After the selecting the desired program use the h and m buttons to set hours and minutes to zero the will be displayed This program has been made ineffective and will no longer be carried out To cancel all programs press the Res reset button This clears all memory including the time base and program storage
21. elay engine cool down NR relay is provided with a 5 minute time delay on pickup to keep the engine running for a cool down period NR relay energizes after the time delay and signals the engine driven generator to shut down All circuits are reset for any future normal source failure Activation of standard control features shown in Section 5 will alter the sequence of operation and introduce additional time delays during transfer operations SECTION3 TESTING amp SERVICE PREVENTIVE MAINTENANCE Reasonable care in preventive maintenance will insure high reliability and long life for the automatic transfer switch Operate the switch at least once a month Perform this four step Electrical Operation Test This is a test with load transfer ASCO Power Transfer Switch EMERSON Network Power Transfer Switch Position Source Accepted Normal O Normal Oo Emergency Emergency Transfer Bypass Test Time Delay Press for 15 Sec Set Engine Exerciser 6 Press until light FLASHES Transfer Switch Test 1 Press and hold the door mounted TRANSFER SWITCH TEST button until the engine starts and runs This should happen within 15 seconds 2 The transfer switching device will operate to the Emergency position If the Transfer To Emer gency Delay is used the transfer will occur after a time delay up to 5 minutes For immediate transfer press BYPASS TIME DELAY button 3 The tran
22. erride momentary outages 4 1 settings 4 1 transfer to emergency 4 1 transfer to normal 4 1 timer plant exerciser how to set transfer switch test 1 5 3 1 trouble shooting 3 2 inphase monitor 5 4 V voltage phase 4 1 voltage pickup and dropout set tings 4 1 2011 ASCO Power Technologies L P
23. es only Manual operation of the transfer switching device must be checked before it is operated electrically Do not manually operate the transfer switching device until both power sources are disconnected open both circuit breakers 1 After deenergizing both power sources open the enclosure door Locate and the maintenance handle on the left side of the transfer switching device See Figure 1 6 2 Grasp the attached maintenance handle and turn it with thumb and fingers as shown to manually operate it The maintenance handle turns the opposite direction of the weight Turn it up or down as shown to manually operate the transfer switching device It should operate smoothly without any binding If it does not check for shipping damage or construction debris 3 Return the transfer switching device to the N normal position Now continue to 2 Voltage Checks on next page 1 3 continued Position of the transfer switch is indicated here weight marked N normal and E emergency maintenance handle floating weight With ALL POWER OFF grasp maintenance handle and turn it quickly with your thumb and fingers Figure 1 6 Maintenance handle and positions INSTALLATION ASCO Power Transfer Switch continued EMERSON Network Power Transfer Switch Position Source Accepted Normal O Emergency O Normal oO Emergency LP Transfer Bypass Test Time Delay
24. ise without Load DIP Switch S1 Actuator 8 off o How to Set Built In Timer Step Function Explanation Push Button Status Light SET ENGINE f blinks rapidly Exercise the generator now and 1 Leh 0O00 Sor oxorgise period every week at this time hereafter hold 5 sec blinks slowly f 2 release 008 00 exercise period now active Generator starts and runs press BYPASS TIME DELAY stays on cancel active exercise period Generator stops 4 stays on generator off Exerciser enabled repeats every 7 days o Exercise with Load DIP Switch S1 Actuator 8 on How to Set Built In Timer Step me Function Explanation Push Button Status Light SET ENGINE i j blinks rapidly Exercise the generator now and 1 rea oe 000000 SGL exercia PENCE every week at this time hereafter blinks slowly f Generator starts and runs rolpase O080O SACICISE PINOA MOR ACHE the load transfers to Emergency The load retransfers to Normal then 3 siden Pea cancel active exercise period generator runs for 5 minute cooldown light blinks slowly during cooldown 4 stays on generator off Exerciser enabled repeats every 7 days NOTE Every time SET ENGINE EXERCISER push button is pressed held 5 seconds the exercise period is changed CONTROL FEATURES continued OPTIONAL PROGRAMMABLE ENGINE EXERCISER Accessory 11CD The optional programmab
25. le being set Source Accepted gt blinks slowly when preset dropout point or when Transfer Test button is pressed An Normal Emergency button is released set and during 20 min exercise period Normal Emergency under voltage condition on any phase of the normal source is detected by the sensor Test Transfer Press for 15 Sec When the normal gt stays on after engine stops exerciser is enabled for weekly operation Bypass Time Delay Set Engine Exerciser Press until light FLASHES source voltage fails or the Transfer Test button is ieee the Hold 1S sec to start the engine SE relay de ener generator and to gizes and relay NR transfer the load begins its timing emergency cycle 1 or 3 seconds momentary normal source outage delay The NR relay is provided with a time delay on dropout to override momentary outages and prevent nuisance starting of the engine driven generator If the normal source voltage returns above the sensor dropout setting before the time delay expires the NR relay timing cycle is reset to zero and relay SE energizes page 5 1 If the normal source voltage does not return above the sensor dropout setting before the time delay expires the NR relay de energizes and signals the engine driven generator to start At the same time a voltage and frequency sensor begins monitoring the emergency source The sensor will accept the emergency
26. le engine exerciser provides seven days of different exercise periods The timer is connected and mounted below the controller A permanent backup battery maintains the setting when power is lost to timer output switch deenergizes FUNCTION DIP Switch Settings S1 DIP S2 DIP SWITCH SWITCH Opt Timer Actuator Actuator Enabled 7 off ll OS off g Opt Timer Actuator Disabled 7 off Actuator N 5 on oO Actuator 8 off Actuator 8 on 0 Shaded DIP switches are standard factory settings Exercise without Load Exercise with Load The Accessory 11CD Programmable Engine Exerciser incorporates a 7 day time base and therefore each day of the week can be uniquely programmed to test the engine generator set either with or without load The proper controller settings must be made to determine whether or not the test will be conducted with or without load refer to page 5 1 for proper selection For convenience Block Programming is also provided whereby up to seven days can be grouped together if the ON and OFF times are the same See next page for instructions on setting the timer ez CONTROL FEATURES continued How to Set Optional Programmable Engine Exerciser Accessory 11CD Proceed with care The automatic transfer switching equipment is energized Setting the Clock Time and Day Step Press Button Display Meaning 1234567 blink i reset ooo a
27. mage to motor couplings The Motor Load Transfer feature is built into the controller DIP switch S1 actuator 5 activates this feature right ON left OFF LOAD DISCONNECT FEATURE Connect external circuits to the terminals indicated on the Wiring Diagram provided with the ATSE The double throw Form C contact is rated for 28 VDC or 120 VAC 5 amps resistive The contact operates prior to a selectable 0 3 10 or 20 second delay before transfer of the automatic transfer switching device The contact resets either immediately following transfer or after the same delay as set for pre signal before transfer Time delay between the load disconnect control signal and initiation of transfer is set on the controller with DIP switch S2 actuators 6 7 8 as shown below FUNCTION S1 DIP SWITCH enable Actuator 5 on o disable Actuator 5 off o El shaded DIP switches are standard factory settings Note If the Motor Load Transfer feature is enabled it will be activated following the Load Disconnect Feature Delay Before Transfer delay Delay Before Transfer LD TDBT S2 DIP SWITCH ocsam cuno aay Ae e a s A o 0 Shaded DIP switches are standard factory settings Delay After Transfer LD TDAT S2 DIP SWITCH enable Actuator 6 on disable Actuator 6 off D Enabling the Delay After Transfer will caus
28. ncy sources must be available and the emergency source generator if used must be capable of being started in this procedure Perform steps 1 through 8 at the right Observe the status lights See Figure 1 8 Black circle means light is on O White circle means light is off NOTE If Motor Load Transfer feature is activated then transfer may not occur immediately after the respective time delays Transfer will only occur when the phase relationship between sources is correct NOTE The operating transfer time of the transfer switching device is 0 17 second maximum which is measured from the time that power is applied to the operating coil of the transfer switching device until the main contacts close on the alternative source This completes the Functional Test of the ASCO Series 200 Automatic Transfer Switching Equipment Leave the engine generator starting control in the automatic position 1 5 observe these lights The normal source must be available and the generator must be ready to start Check that the Normal Source Accepted light is on Source Accepted Normal Emergency Press and hold the Transfer Test button until the engine starts and runs This should happen within 15 sec Transfer Test The Emergency Source Accepted light should come on Source Accepted Normal Emergency The transfer switching device should transfer to the Emergency position The Emergency Transfer
29. on the controller or the transfer switching device call your local ASCO Power Technologies sales office Furnish Serial No Bill of Material BOM No amp Catalog No from the transfer switching device nameplate 3 2 SECTION 4 ADJUSTMENTS Time Delay Adjustment Standard time delays are set to customer specifications if none specified standard factory settings are used To change a setting follow procedure on page 4 2 Use Table 4 1 as a guide to time delay values and their corre sponding adjustment DIP switch or potentiometer Table 4 1 Time Delay Settings FACTORY ADJUSTMENT S3 DIP ADJUSTMENT BE RIE HONS ESBELS SETmING RANGE SWITCH POTENTIOMETER Override Momentary aed eters 1 second Actuator 1 on _ Normal Source Outages 3 seconds Actuator 1 off Transfer to Emergency ie tee ee P2 Override Momentary 4 seconds non adjustable Emergency S Outages TIMER 30 minutes 1 second to Retransfer to Normal E N full cw 30 minutes P1 Unloaded Running adi Engine Cooldown 5 minutes non adjustable Sensor Adjustments Voltage and frequency sensor pickup and dropout points are set to customer specifications if none specified standard factory settings are used To change a setting follow procedure on page 4 2 Use Tables 4 2 and 4 3 for settings and corresponding DIP switch actuators NOTICE Any change in these settings may
30. sfer switching device will operate back to Normal position after the Retransfer To Nor mal Delay up to 30 minutes For immediate retransfer press BYPASS TIME DELAY button 4 Unloaded Running Engine Cooldown Delay allows engine to run unloaded for 5 minutes Clean and inspect the switch once a year De energize all sources then brush and vacuum away any excessive dust accumulation Remove the transfer switch barriers and check contact condition The non replaceable main contacts are designed to last the life of the transfer switch Reinstall the barriers carefully Maintain transfer switch lubrication The transfer switch has been properly lubricated and under normal operating conditions no further lubricating is required Renew factory lubrication if the switch is subjected to severe dust or abnormal operating conditions Relubricate the solenoid operator if a coil is replaced Do not use oil Order lubrication 625550 001 Castrol Endurex 4000 lubricant Replacement parts Replacement parts are available in kitform When ordering parts provide the Serial No and Catalog No from the transfer switch nameplate Contact your local ASCO Power Technologies sales office DISCONNECTING THE CONTROLLER The harness disconnect plugs are furnished for repair purposes only and should not have to be unplugged If the controller must be isolated follow these steps carefully Disconnecting the Plugs 1 Observe
31. source only when both voltage and frequency reach preset pickup points Usually about ten seconds elapse from dropout of the NR relay to acceptance by the sensor This time span occurs because the engine driven generator must crank start and run up to nominal pickup points For this reason if the Transfer Test button is pressed it must be held for 15 seconds If the emergency source is available immediately the sensor may accept it as soon as NR relay drops out When the emergency source is accepted by the sensor relay ER begins its timing cycle transfer to emergency delay ER relay is provided with an adjustable 0 to 5 minutes time delay on pickup to delay transfer of the load to the emergency source For immediate transfer press Bypass Time Delay button ER relay energizes the TS coil is energized the transfer switching device operates and all switch contacts mains controls auxiliaries reverse position The transfer switch is now supplying the load from the emergency source The transfer switching device will remain in the Emergency position until the normal source is restored Ifthe Transfer Test button is used the transfer switching device will remain on emergency until the retransfer to normal delay times out Press to cancel the active exercise period 20 min engine exercise stops engine now or after cooldown See See page 5 1 for complete instructions Hold 5 sec to set period immediately engine
32. the position of the transfer switching device a If the transfer switching device is in the Normal position place standby engine starting control in the off position Then open the emergency source circuit breaker b Ifthe transfer switching device is in the Emergency position open the normal source circuit breaker Place the engine starting control in the test or run position 2 Separate the quick disconnect plugs by squeezing the latches Do not pull on the harness wires 3 Label remove and tape the signal wires connected to the engine start terminals on the transfer switch ing device TB1 and TB3 or TB1 and TB2 Reconnecting the Plugs 1 Observe the position of the transfer switching device a Ifthe transfer switch is in the Normal position be sure that the standby engine starting control is still in the off position The emergency source circuit breaker still should be open b Ifthe transfer switch is in the Emergency position normal source circuit breaker still should be open 2 Reconnect the signal wires connected to the appropriate engine start terminals on the transfer switch See Section 1 Engine Starting Contacts 3 The harness plugs and sockets are keyed Carefully align the plugs with the sockets and press straight in until both latches click 4 Restore the opposite source as follows a If the transfer switch is in the Normal position place the standby engine starting control in the automatic
33. ure 1 4 Required conductor spacers for 150 200 amp 230 amp transfer switching devices Engine Starting Contacts The engine control contact connections if used are located on the transfer switching device Connect signal wires to appropriate terminals as specified in Table A and shown in Figure 1 5 Table A Engine start connections When normal Terminals on source fails transfer switching device TBT and TB2 TB1 and TBS ENGINE STARTING CONTACTS SHOWN DE ENERGIZED MIDDLE STUD BOTTOM STUD Figure 1 5 Engine starting contact label and location on left side of transfer switching device Interconnecting harness Connect the plug in harness two plugs from the transfer switching device to left side of the controller if not already connected Auxiliary Circuits Connect auxiliary circuit wires if necessary to appropriate terminals by referring to the Wiring Diagram INSTALLATION Functional Test The Functional Test consists of three checks manual operation voltage checks and electrical operation NOTICE Do these checks in the order presented to avoid damaging the automatic transfer switching equipment Read all instructions on the Wiring Diagrams and labels affixed to the ATS Note the control features that are provided and review their operation before proceeding 1 Manual Operation A detachable manual operator handle is provided on the Transfer Switching device for maintenance purpos
34. wiring must be made in accordance with the local codes Do not run cables in front of the transfer switching device Conductors can be bundled on the right side of the transfer switching device Maintain proper electrical clearance between the live metal parts and grounded metal 13 mm minimum It is not necessary to remove the barriers from the transfer switching device to install the conductors If you do remove them however be sure to reinstall the barriers carefully Connect main source and load conductors to clearly marked power terminals on the transfer switching device Be careful when stripping insulation from the conductors avoid nicking or ringing the conductor Remove surface oxides from conductors by cleaning with a wire brush Follow conductor manufacturer s instructions when aluminum conductor is used Apply joint compound to conductor then carefully wipe away excess compound Tighten the terminals to the torque specified on the label on the transfer switching device Three conductor spacers are included with 150 200 and 230 ampere transfer switching devices When installing power conductors run them through the conductor spacers as shown in Figure 1 4 Position the spacers within 38 mm of the power terminals 1 2 continued NOTICE Three conductor spacers must be located as shown for 150 200 and 230 ampere transfer switching devices conductor spacers 38 mm approximate conductor spacer Fig
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