Emerson 185SE FAQ
Contents
1. and call 1 800 800 2726 ASCO option 22 You may also visit http store ascoparts com series165parts html for more information Pricing Inquiry 1 To get pricing on the product call 1 800 800 2726 ASCO option 31 2 To check pricing and availability of a part call 1 800 800 2726 ASCO option 2 Rev A 122. Series 185 Frequently Asked Questions BI VICO ones teaciareevere E E E nn ieroumadianadeneneantiawaiucesied 3 How will I know if the controller is non operational niin 3 What should I do if the indicator lights are faulty ee eeccccccccececeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee es 3 How do Lcontact a s rvice technician 5 sassaiavetsaataceonessscadeusshaaaisutededetatacenoessidaceusidacadeutetadesatucoasasiJaceanidanaboageaadeostodanesuiiteaeee 3 Why won t the engine exerciser light blink after setting press and hold the button the exerciser ccccececceeeeeeeeeeeeeeees 3 Why doesn t the engine exerciser light blink to indicate the remaining number of days until the next exercise period 3 Why won t the generator shut CO Wi sscceucseasscncsesetetmcasazsawessedsupiesebexcsescbesmsanasswessadsascene nen EEEE E E E E 4 Why doesn t the ATS transfer to ermergency ccccsscccssssssssssssssssssccceeeetssssesesssssscoessssscccceeenstsesesssssssagoosesssaceceeenttssesessnens 4 Why won t the engine start contacts WOLK oc ccccccceceeeseeseesesennneeeeeeeeeeeeeeeeeeeeeeeeeesnaaeeeeeeeeeeeeeeeesseeeeeeeaaaaaeeeeeeeeeeeeeeeeeeeegs 4 Why does the generator crank up when load is connected to the utility and then shuts down when utility fails 4 Why won t the utility acceptable LED light Up ee eeececcsssssnnneeeeeeeeeeeeeeeeeeeeeeesenaaeeeeeeeeeeeeeeeees
3. d socket to supply the relay coils The engine exerciser has malfunctioned even if the battery is new or exercises at a random schedule or does not function The generator would not start even when a start signal is verified or does not shut down The command buttons DIP switches or potentiometers are non operational Discoloration or indication of damaged components visible on the circuit board Remote control switches are not functioning even though proper values have been set No power present at inputs from the harness 02 lO Ol Consult technical support group to verify the conditions What should I do if the indicator lights are not functioning properly 1 Check to determine if correct voltage is applied across the main contacts This requires opening the enclosure door and wearing the appropriate PPE 2 Check that voltage sensing wires have continuity 3 Ifthe voltage across the terminals is acceptable but the lights are not operational then the controller should be replaced Note Checking these items requires an ASCO Services technician or a licensed electrician How do I contact a service technician 1 You can contact a local ASI representative by calling the toll free hotline at 1 800 2726 and then go to option 2 then option 3 on the prompt 2 Customer service assistants can also transfer you to a technician s office in your area Why won t the engine exerciser light blink after setting press and
4. eeeeeeeeeaaaaeeeeeeeeeeeeeeeeeeeens 4 WIRE vesttacct vas sueecessnatecasenaaceioseineermeustesenen scenes A coerasscusviseuesenen hie tare ties ecrorn a inacssensn eso cet vasuesnessnacecess 5 Where do I connect the engine start wires scccssccsanewessaxacvecsscaciescexacsneesaqaueysaracsaacbiacsnqeexacuneeeaesueqearaesaasbiacenqeaxacexesaeswerasaeseeees 5 What generators are compatible with the series 185 transfer switch ssssseesesesssssssssssssssrerrrrrreeessssssssssrererrrrreeeesssssseee 5 Is the switch supplied with current limiting fuses eseeeeeeeseesesesssesseseseeereeessrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrererrrrrene 5 What is the DC voltage on the controller ssoosssssseseeeeeeeeesesssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssesenet 5 FAS IS erecta E E N E E E T E E A E E E A E E E T 6 Aro he fime delay adjustable l nosnici E E E E S E E 6 Hoved E Pee CS ea a a a a a a a 6 What is the 14A and 14B feature for sssssssseeeeneeesssssssssssssssererrerresssssssssssssserrrerreeessssssssssssserrrrrreseesesssssssseeeerrereeeeeesssssse 7 What auxiliary features does the ATS offer ssesccescesiaxacraasssassureaxacenvesaeseyaracsaasbiacnyearaceneeeaesueyaraasaasbiacendearaceneaaeswearaesneess 7 IPETO a eC S E E E E EA 8 How do Tset the ensine Exerciser essere r ie E E EEE E EE 8 How doesihe ALTS WOK ases E T 8 How can Lexercise yilh load enorer e aa 9 Why doe
5. ere do I connect the engine start wires The generator starting contact connections are on the controller terminal block Connect the generator start wires to terminal block TB7 TB7 4 and TB7 5 for normally open contacts and TB7 5 and TB7 6 for normally closed contacts Caution Make sure both normal and standby source breakers are in the off position 23456709C pggggagogg fi Te removable tenmminal block Ta7 4 TH7 5 TB7 6 Figure 4 TB generator starting contact terminals Table A Generator Start Connections When the Utility tails Terminals on Controller contact opens TEY 5 and T 7 6 What generators are compatible with the series 185 transfer switch The Generator must be a 2 wire start and connect to the engine start circuit of the transfer switch Is the switch supplied with current limiting fuses No suggested fuse ratings listed in table below Switch Rating Amps When Using Current Limiting Fuses When Used with Circuit Breakers 100 200kA 10kA 200 200kA 10kA 230 100kA LOkA 260 200kKA 35kA 200kA 35kA NOTE When properly coordinated with current limiting devices automatic transfer switches can be used on circuits having available short circuit currents greater than their unprotected withstand short circuit current rating Modern current limiting fuses when properly sized limit the short circuit current to within the withstand rating of a transfer switch What is the DC voltage on the contr
6. hold the button the exerciser 1 Check engine start contacts to confirm they change position If it doesn t controller may be non conforming replace controller 2 If start contacts change position generator may have a problem Contact local generator distributor 3 Check the 9 volt battery and the S2 dipswitch setting of the battery It should be ON Note Checking these items requires an ASCO Services technician or a licensed electrician Why doesn t the engine exerciser light blink to indicate the remaining number of days until the next exercise period 1 After the exercise period stops the flashing light will remain on to indicate that the exercise is enabled and another exercise will be conducted after a week Rev A 3 Why won t the generator shut down 1 Generator is still running on cool down state Approximately 5 minutes 2 Ifthe ATS has transferred to the utility source and the generator is still running after 5 minutes check if generator has its own cool down timer setting Contact local generator supplier 3 If the generator has no cool down timer but is still running after 5 minutes check the engine start contacts on the transfer switch 4 If there is continuity on the N O contacts no continuity on the N C contacts and switch is connected to the utility source the controller may be non conforming Controller should be replaced Note Checking these items requires an ASCO Services technician or a lice
7. malfunction or shortened life Transfer switches rated 260 and 400 amperes are mounted on an insulator backing piece installed behind the transfer switch Ifthe transfer switch is removed from the enclosure and then reinstalled this insulator must be placed behind the transfer switch See Figure I A WARNING FLASH HAZARD DAMAGE Be sure that the insulator piece is installed behind the 260 and 400 ampere transfer switches insulator backing piece Figure 1 Insulator for 260 and 400 A Rev A Where is the ground bus located 1 Upon opening the enclosure door of the transfer switch the ground bus lugs are located on the right side of the enclosure Caution Do not open the enclosure door Where do I connect the power cables 2 Electrical Power Connections Reter to the wiring diagram The ATS must be protected by suitably sized circuit breakers feeding the utility and generator source terminals The rating of the circuit breakers must be based on the requirements of the National Electrical Code for its nameplate ampere and short circuit withstand ratings 4 DANGER ELECTROCUTION HAZARD Turn off utility power and turn off the generator to prevent electrocution when wiring the transfer switch e e e eooo adir 3 a x EE EE E Fd S G a Rev A 11 Others Parts Inquiry 1 For parts inquiries note the BOM number Serial number and Catalog number of the product
8. nsed electrician Why doesn t the ATS transfer to emergency 1 Verify that the generator accepted light is on The ATS will not transfer load to an unacceptable source Check generator breaker Contact local generator supplier Voltage across the emergency terminals is not acceptable The generator frequency is too low or too high The solenoid operator is non operational The controller is non operational ak wh Note Checking these items requires an ASCO Services technician or a licensed electrician Why won t the engine start contacts work Conduct a transfer test The engine start contacts should change position If they don t controller may need to be replaced Contact an ASCO Services technician or a licensed electrician Why does the generator crank up when load is connected to the utility and then shuts down when utility fails 1 Controller does not sense the proper outage of the normal utility source May need to be replaced Why won t the utility acceptable LED light up 1 Normal utility source is not acceptable Voltage and or frequency are not within acceptable parameters 2 Utility breakeris OFF Turn the breaker ON 3 LED has malfunctioned contact Parts Department or local distributor and replace LED Verify if the transfer switch harness is connected properly to the controller Note Checking this item requires an ASCO Services technician or a licensed electrician Rev A Wiring Wh
9. oller 24VDC Rev A 5 Features Are the time delays adjustable Refer to table for time delay settings Time Delay Description Factory Setting DIP Switch DIP Actuator override momentary teens se tt utility outages 4 second a S Toses eero oo override mamentary ee a a a EA s ooo f s o e O Sminutes approx a a unloaded running aiaia al il How do I specify the ATS To specify the switch just follow the Catalog number format below D 185 A 2 200 Controller 4 standard C Type 1 Phase Poles A standard 2 single AX i MI Type 3A accessories ordered For Service Entrance Amperes Continuous Rating Phase Poles Voltage Controller Enclosure oTo Type 1 Standard Type 3R Secured A Solid Ma Neutral Use product code 1APS to specify an optional additional circuit breaker on the emergency source Rev A 6 What ts the 14A and 14B feature for Transfer switch auxiliary position indicating contacts One set of contacts to indicate the connection of the transfer switch to the preferred utility source 14A and one for the alternate generator source 14B TS joe es 1s E i l FEATURE 14A AUXILIARY i y A ae CONTACTS E SIR J FEATURE Mx CONTACTS 14A amp 14B p p 10 AMPS 32VDC E Eg 148 10 AMPS 480VAC ny 7 CLOSED ON ALTERNATE GENERAL PURPOSE What auxiliary features does the ATS offer K373314 Auxiliary Switch Position Con
10. oximately 10 seconds for the transfer to generator time delay 3 Press the Bypass Time Delay button for immediate load transfer to the generator How does the engine exerciser work 1 The engine exerciser works by closing the engine start contacts and keeps it closed in order to crank and run the generator for approximately 20 minutes after time expires the controller signals the engine start contacts to open up and shut the generator down after the 5 minute engine cool down period What does the engine exerciser light indicate 1 The status light below the set engine exerciser button blinks rapidly to indicate that the exerciser has been set The number of flashes indicates the number of days until the next exercise period at approximately the same time the button was pressed Will the 185 switch work with a non generator emergency source 1 YES it will work with a non generator emergency source As long as you have provided the necessary power cables to the transfer switch Rev A Product Installation How do I install the ATS 1 Mounting Refer to the enclosure outline drawing Mount the ATS according to details and instructions shown on this diagram Mount the ATS vertically to a rigid Supporting structure Level all mounting points by using flat washers behind the holes to avoid distortion of the enclosure A CAUTION MALFUNCTION or SHORTENED LIFE Protect the ATS from construction grit and metal chips to prevent
11. s the generator automatically shut off sscsaciasessacaaeiscatcssasaceceiavaciancaaacaasiasaiessesacecsiavacianeaaadaasiasaieasaseaceqsiavaanaaacecs 9 Rev A 1 Flowdol pertorm arans ier 680 noier cadet nani ee a in nae ada eee ena ace anaes 9 HOw does the enone exerciser WOK sesntols doy atarard a deen yaaa iene asaatds E ae E 9 Whatdoes the engine exerciser isnt indicate herensia celvee ink cabelas deateace ule Saaandatad de lain deedateace tule carendatab de lasteees 9 Will the 185 switch work with a non generator emergency source eeeeecccccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee 9 Product IMotallatiO Morsian reseita acai ciel tacit cceeete dae eeu act condee dug E EE N aceainty daub E N EON 10 How do Lms tne ATS ken E T aaldagids hae aan deed adda a raee ees 10 Wherews the oround bus located arene a a a a tad tea tebeea bed unten el tad teatebeades 11 Where do T connect the power Cables einna a a a a a O 11 0 a cee ee nen ere ne ee ee E ree re ere ee ee eee 12 Pars GUY scares a a a A E E 12 e TNA as cerca Wet cect AE A A E OE T EN EE EN 12 Rev A 2 Service How will I know if the controller ts non operational 1 The indicator lights are not showing proper indications 2 The switch transfers even if there is no loss of utility power and no transfer test operation or exercise with transfer is confirmed 3 The relays are not operating according to the normal sequence no voltage from the boar
12. tact Kit 14A 14B 100 through 230A only Rev A Operation How do I set the engine exerciser To set the exerciser Press and hold 5secs the set Engine Exerciser button oi the button was pressed T ncel an ive exerci ri The exercise period occurs immediately and at the same time weekly thereafter The status light below the button blinks rapidly to indicate that the exerciser has been set The number of flashes indicates the number of days until the next exercise periods at approximately the same time 1 Press the set engine exerciser button to stop an exercising generator If exercise with load is set the ATS retransfers the load to the utility then stops the generator after cool down How does the ATS work See below ATS sequence of operation generator stops 4 Utility power good Electrical loads on utility generator rune p E utility acceptable unloaded y for 2 min S load on utility 6 electrical loads switched back I x PAPEN to utility utility acceptable ri O generator off load on utility j 3 generator oasi acceptable observe observe wait 5 min these these ae TY 7 power switch to stabilize PE utility lights lights acceptable OOD load on generator he O generator acceptable O utility off utility returns N waiting for utility 2 load on generator to return i eS o generator acceptable _ hx l rA electrical loads switched
13. to generator Rev A W light is on light is off Utility fails longer than 3 sec 2 Start generator EQ utility off load off O o generator off m enerator O utility off ating load on utility O e C generator acceptable generator acceptable wait 10 sec for generator to warm up How can I exercise with load 1 Be sure the exerciser is turned on and then select either exercise with or without load Refer to the table for the settings Caution Make sure both normal and standby source breakers are in the off position before opening the enclosure door to adjust any settings on the controller Function Factory DIP DIP Actuator Setting owitech Actuator Position clock on up on up ciser 3 7 a with load or without 51 with up without load load without down Why does the generator automatically shut off 1 Verify proper generator operation it may have run out of fuel or shut down due to low oil pressure 2 Generator may be overloaded Check if generator circuit breaker tripped Check sum of load to be sure it does not exceed the capacity of the generator 3 Check the engine starting contacts Note Checking these items requires an ASCO Services technician or a licensed electrician How do I perform a transfer test 1 To perform a test press and hold the transfer test button for at least 15 seconds or until the generator cranks 2 Wait for appr
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