Asco 940 Operator'S Manual Download

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Automatic Transfer Switch

with Microprocessor Control Panel. Group 6 or 7

OPERATOR'S

MANUAL

INCLUDES:

-I nstallation Testing· Service

•

Optional Accessories

•

Diagrams

for switches rated 30 through 4000 amps

ASt6

"'Controls are designed and manulactured by

SWltth Co

Florham Park. New Jersey 07932. Telephone (201) 966-2070

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381333-031

1D4980R6

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Summary of Contents for 940

Page 1: ...ation Testing Service Optional Accessories Diagrams for switches rated 30 through 4000 amps ASt6 Controls are designed and manulactured by Automatic SWltth Co Florham Park New Jersey 07932 Telephone 201 966 2070 381333 031 1D4980R6 I j i 4 I l Ii i 1 I m t 1 1 t I r fr Z l w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 2: ...vided ampere rating 30 4000 control panel code 8 for single phase 9 for three phase voltage code see wiring diagram AS Qe O TNO AUTOMTIC TRANSfER SIIITCH f USE EllERWlCY OR STAIIDBY SYSTEns CABO m 36009 X SER NO 123i56 AltPS 480U 60HZ 3 PI 3 IIiRE R IID MIlIAl BEfORE IICSlAllllIG F ICE CAU llt66 20 J moUe W1tth UJ FLOfIHAMPAAK N J U S A TABLE OF CONTENTS section page INSTALLATION 1 1 Mounting 1 1 ...

Page 3: ...add on panel may be provided for certain optionalac cessories It is mounted below the control panel For open type switches only the control panel and add on 1 1 panel are usually supplied on mountingrails Refer to the Composite Outline and Mounting Diagrams for details Line Connections Composite Elementary Wiring Diagrams are furnished at the back of this manual All wiring must be made in ac corda...

Page 4: ... 5 Optional Accessories Also refer to any separate drawings and or publications that may be packed with the switch Harnesses All internal connections are made at the factory The switch is connected to the control panel by a plug in har ness Extension harnesses are available in standard lengths The plug is already engaged on enclosed switches For open type switches the plug must be en gaged after i...

Page 5: ...for installing the handle 30 through 150 ampere Grasp the permanently attached manual handle left side of the operator and turn it with thumb and fin gers See Figure 1 5 260 and 400 ampere Insert the manual handle into the hole in the shaft left side of the operator See Figure 1 6 600 and 800 ampere Attach the manual handle onto the pivot shaft exten sion left side of the operator See Figure 1 7 1...

Page 6: ...he same as the nor mal source 6 Shut down the engine driven generator Then put the starting control selector switch on the generator set in the automatic position 7 Close the cabinet door and tighten the screws Electrical Operation This procedure will check the electrical operation of the Automatic Transfer Switch Put engine starting control in automatic position WARNING Close the cabinet door fir...

Page 7: ...ature 2B ER relay is provided with a an adjustable 0 to 8 minutes time delay on pickup to delay transfer of the load to the emergency source if desired ER relay energizes the TS coil is energized the transfer switch operates and all switch contacts mains controls auxiliaries reverse position The transfer switch is now supplying the load from the emergency source 2 1 The transfer switch will remain...

Page 8: ... for Feature 1 time neeted Check wiring CP17 after Feature 1 delay plus engine to engine starting con time delay cranking and starting tacts time Transfer switch does Wait for Feature 2B Generator output cir Voltmeter should read not transfer the load to time delay to time out cuit breaker must be at least 90 of nomi emergency source af closed Generator fre nal phase to phase ter the gen set start...

Page 9: ...job specifications The stan dardfactorysetting is used unless otherwise specified Ifa setting must be changed carefullyfollow the procedures on the pages that follow The adjustmentsare incremental Three DIP switches are used each has eight actuators See Figures 4 3 and4 4 on page 4 2 UseThble4 2 belowasaguide to thevoltageandfrequen cy settings and their corresponding slide DIP switches CAUTION An...

Page 10: ... and refer to Figure 4 4 5 Find the specificchartfor that setting then choose the new setting left side of chart 6 Use a ball point pen to slide the switch actuators up ordown so they match the illustration nextto the set ting up on down off Recheck the setting See Figure 4 3 4 2 DIP switch r J I Figure 4 3 Setting DIP switch actuators 7 Install thecoveron thecontrolpanel Align the cover and push ...

Page 11: ...mInutes QL off on o ff off 1 234 2 0 seconds 1 liJ off on off orr 5678 3 mInutes o ff on off on 1234 2 5 seconds 1 1 J off on off on 5678 mInutes off on on off 1234 3 0 seconds off on on off 5678 5 mInutes off on on on 1234 3 5 seconds off on on on 5678 8 off off off mInutes on 1234 4 0 seconds on off off off 5678 10 mInutes on off off on 1234 4 5 seconds on o ff off on 5678 12 mInutes C1 l on off...

Page 12: ...orr 10 Inutes 1 lli off on off orf 1234 5678 5 seconds ofr on off on 12 mInutes 1 Joff on off on 1234 5678 8 seconds i L off on on off 15 mInutes off on on ofr 1234 5678 10 seconds ofr on on on 20 l nu T es off on on on 1234 5678 20 seconds on off off ofr 25 Inutes on off off off 1234 5678 30 seconds on off off on 30 mInutes on off off on 1234 5678 45 econds on off on off 35 mInutes on off on off ...

Page 13: ...34 89 percenT J llJ off on off orr 5678 90 percent off on off on 1234 90 percent hl J off on off on 5678 91 p rcent off on on off 1234 9 1 per cent off on on off 5678 92 percent off on on on 1234 92 pel cen 1 off on on on 5678 93 percent on off off off 1234 93 percent mJ on off off off 5678 94 percent on off off on 1234 94 percent on off off on 5678 95 percent on off on off 1234 95 percent on off ...

Page 14: ... off orr U 95Y III on off on off 01 1 12345 12345 u l l l c I I I I I f SOY off 01 1 on off on V 967 on orr on orr on 12345 12345 G SIr 11 11 orr off on on orr W 97r 1 1 11 1 on orr on on orr 12345 12345 H 82Y 11 111 orr o rf on on on X 98Y 1 111 on off on on on 12345 12345 I 83Y I UI orr off orr orr Do not u oomblnatlon oth than above on 12345 l Ui Phase Selection J 84Y orr on ofr off on Normal 5...

Page 15: ...69 69 70 71 72 72 73 74 75 75 0 66 67 68 69 69 70 71 72 73 73 74 75 76 76 E 67 68 69 70 70 71 72 73 73 74 75 76 77 77 F 68 69 70 70 71 72 73 74 74 75 76 77 78 78 G 69 70 70 71 72 73 74 75 75 76 77 78 79 79 H 70 71 71 72 73 74 75 75 76 77 78 79 80 80 I 71 71 72 73 74 75 76 76 77 78 79 80 81 81 J 71 72 73 74 75 76 76 77 78 79 80 81 81 82 K 72 73 74 75 76 77 77 78 79 80 81 82 82 83 L 73 74 75 76 77 7...

Page 16: ...loses Co tt S6 SwItch On Tr onsr r DIP Actuato SettIng Swttch 2 not u d L ofr u d c on pIckup DIP 4 ttlng SwItch 1 2 3 4 off 96 pe c enT off on on off 1234 on 97 p r c nt off on on on 1234 off 98 po cen1 CiiL on off off off 1234 on 99 p cont on off off on 1234 off 100 p r cent 1234 on off on off Do n ot u co blnatlon on oth than abov 66 on f 11111 1 1 1 1234 678 J Upon Normal Source failure or Tra...

Page 17: ... provisions for a remote customer contact to inhibit transfer to theEmergency source Cus tomer contact must close to allow transfer to Emergency Connect a contact rated for low energy circuits to con trol panel terminals CP29 and CP30 Remove existing jumper See Figure 5 3 Group 6 or 7 Control Panel Figure 5 3 Feature 34B 5 1 These manual controls if furnished are connected and installed on the enc...

Page 18: ...e then press again and hold it Press and re lease theSETbutton to change theday 1 is Sunday Release the TIMEIDAYbutton when the Correct day is displayed 3 SetStart Time Decidewhat timeyouwanttostart the exerciseperiod Hold down theON TIME button and press theSETbutton Hold down theSETbutton for fast set press and release theSETbutton for slow set 1 minuteincrements Release theON TIMEbutton when th...

Page 19: ...e dayofthe week is displayed as 1 7 1 is Sunday Display Engine Start Time Press the ON TIME button Display Engine Stop Time Press the OFF TIME button Display Run Day s Press the TIMEIDAY and ON TIME buttons simulta neously then release them The run days are displayed in sequence The display stays on for 5 seconds or as long as the button is pressed 5 3 S I S2 53 54 S5 S6 S7 YII UIUlI wmll umlmw lh...

Page 20: ... Normal Emergency 1 4A 148 standard TS 1 2 13 TS1 0 1 1 1 st optional TS 31 32 TS29 30 2nd optional TS 35 36 3rd optional TS 39 40 fftf 13 31 M 3 10 30 34 l8 1 1 1 i TTTT II 2 9 H 3 7 E L 13 I I f 12 10 33 29 3S 31 N f t 3 4 30 36 32 TS33 34 TS37 38 1L N 9 3 3 29 3 31 f f ffff 40 38 34 30 36 32 Figure 5 8 30 150 amps Figure 5 9 260 400 amps Figure 5 10 600 800 amps Figure 5 1 1 1 000 1 200 amps Fi...

Page 21: ...and the standard Sequence of Operation is resumed If eithersource ofpower isnot availablewhen the inphase monitor starts its sensing mode the output relay picks up after 2 seconds and allows the TS coil to be energized Trouble Shooting 1 Connect a voltmeter between terminals NA and EA on the transfer switch Set the meter scale to at least twice the system phase to phase voltage 2 Manually start th...

Page 22: ...nel How to Change a Time Delay Setting T o change the timedelay settings follow the procedurein Section 4 Adjustments The timedelaysareshown in the chart at the right DIP switch S5 actuators 5 6 7 8 sets the time delay before transfer DIP switch S6 actuators 5 6 7 8 sets the time delay transfer 5 6 5 OR S6 on f 1 1 1111 1 2345678 Lood Shed DIP TI D l oy Sw I tch on o teconcls f 11 5678 I eond II 5...

Page 23: ...NOTES w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 24: ...CLOSEO TYPE SHIPPEO LOOSE FOR OPEN TYPE D 6C MOMENTARY RESET SWITCH FOR MANUAL RETRANSFER OF THE A T S TO THE NORMAL SOURCE ONLY AFTER TIME DELAY FEATURE 3A EXPIRES WITH INSTANTANEOUS AUTOMATIC RETRANSFER IN THE EVENT OF EMERGENCY SOURCE FAILURE INSTALLED ON DOOR OF ENCLOSED TYPE SHIPPED LOOSE FOR OPEN TYPE IIIDICATORS D 1 4A1 1 4B ADDITIONAL AUXILIARY CONTACT SETS ONE SET IS SUPPLIED AS STANDARD ...

Page 25: ...NNECTIONS ARE SHOWN OPEN AS CUSTOMER CONNECTION POINTS 7 ON ENCLOSED TYPE SWITCHES THE TRANSFER UNIT IS MOUNTED ON THE BACK INSIDE SURFACE AND THE CONTROL PANEL ON THE INSIDE DOOR SURFACE WHEN AN ADDITIONAL ACCESSORY MOUNTING PANEL IS REQUIRED TO MOUNT OPTIONAL ACCESSORIES IT IS LOCATED DIRECTLY BELOW THE CONTROL PANEL B ALL FEATURES AND OPTIONS SHOWN ARE UL RECOGNIZED 9 CUSTOMER REMOTE CONTACTS T...

Page 26: ...DOOR OF ENCLOSED TYPE SHIPPED LOOSE FOR OPEN TYPE INDICATORS D 1 4A 1 4B ADDITIONAL AUXILIARY CONTACT SETS ONE SET IS SUPPLIED AS STANDARD SPECIFY TOTAL OUANTITY WHEN MORE THAN ONE SET IS REOUIRED TOTAL OUANTITY_ _ _ _ NL I NL2 NLO ACC 28 TS TRANSFER SWITCH 1 1 1 1 ACC NORMAL 70 6 72 8 28 5 1 7 i n 1 4 16 1 8 TS TRANSFER SWITCH t l l C D f l O IJ M n C l r I I I I I I I I 1 I t I I I I I I w 00 00...

Page 27: ...NECTED TO A T S CONTROLS SHOULD B E SUITABLE FOR LOW ENERGY CIRCUITS 1 0 REFER TO OPERATOR S MANUAL FOR WIRING OF OPTIONAL ACCESSORIES SHOWN BELOW I I ADJUSTMENTS FOR PICKUP AND DROPOUT SETTINGS ARE IN INCREMENTS OF l ro TIME DELAY ADJUSTMENTS ARE IN DISCRETE INCREMENTS 1 2 AN OPERATOR S MANUAL IS FURNISHED WITH EACH AUTOMATIC TRANSFER SWITCH REFER TO THIS PUBLICATION PRIOR TO INSTALLATION AND OPE...

Page 28: ... SUGGESTED BOLT SIZE FOR MOUNTING A T S SWITCH NEUTRAL r 1 4 20 X I INCH LONG MINIMUM OUANTITY 4 CONTACT ACC 28 NORMAL EMERGENCY CONTACTS ON ACC 25 POLE ARE REVERSED WARNING 260 THRU 400 AMP SUPPLIED BACKING P IECE MUST BE T _ w I L MOUNTING HOLE DIA INSTALLED AS SHOWN H _ w J _L J J SWITCHED NEUTRAL CONTACT ACC 28 rfl LOAD q K H lmJ SUGGESTED BOLT SIZE FOR MOUNTING A T S j H F F r 1 4 20 X 3 INCH...

Page 29: ... J c r 0 3 1 07 9 MM J I 0 50 MOUNTING 1 2 7 HOLE OIA I 9 MAX STANDARD CONTROL PANEL WITH ADDITIONAL ACCESSORY MOUNTING PANEL AND CHANNELS USED WITH ANY SIZE TRANSFER SWITCH UNIT SUGGESTED BDLT SIZE FOR MOUNTING CONTROLS 1 4 20 X I 1 2 INCH SELF CLINCHING CAPTIVE STUDS AS REQUIRED DRILL PATTERN BELOW WILL ACCOMMODATE MOST DOOR MOUNTED ACCESSORIES REFER TO ASCO SUPPL IED ACCESSORY NAMEPLATE DRAW IN...

Page 30: ...OR 254 0 12 50 i CUSTOMER TO PROVIDE ACC 28 317 5 STRUCTURAL SUPPORT AMP SIZE A 1 600 28 50 723 9 FLOOR OPERATOR UNDER SWITCH FRAME NORMAL EMERGENCY CONTACTS ON ACC 28 POLE ARE REVERSED EXTENSION RECOMMENDED CHANNEL I 50 38 I MM X 3 00 76 2 MM DIMENSIONS B C 0 E F G H J 52 00 18 50 27 00 0 75 4 37 20 65 4 50 9 00 1 320 8 469 9 685 8 19 I 1 1 1 0 524 5 1 14 3 228 6 I I I r MOU ITING HOLE DIA L r 4 ...

Page 31: ...NSULT FACTORY FOR AVAILABLE EXTENSION HARNESSES 7 OPTI ONAL ACCESSORY MOUNTING PANEL AND RAILS ARE SUPPLIED ON OPEN TYPE S W I TCHES FOR MOUNTING OPT IONAL T IME DELAYS RELAYS AND MON ITORS 8 _ REQU IRED TOP AND BOTTOM ENCLOSURE VENTILATION OPEN INGS FOR 1 600 THRU 4000 AMP S W I TCHES IS 1 40 S Q INCHES 903 S Q _ C M TOTAL 9 CUSTOMER SUPPLIED VERTICAL MOUNTING CHANNELS FOR 1 600 4000 AMP 2 REOUIR...

Page 32: ...ESSORY MOUNTING PANEL AND R A I L S ARE SUPPL I ED ON OPEN TYPE S W I TCHES FOR MOUNTING OPTIONAL T IME DELAY S RELAY S AND MON ITORS 8 REQUIRED TOP AND BOTTOM ENCLOSURE VENT ILATION OPENINGS FOR 600 THRU 4000 AMP S W I TCHES IS 40 SQ INCHES 903 SO CM TOTAL 9 CUSTOMER SUPPLIED VERT I CAL MOUNT I NG CHANNELS FOR 600 4000 AMP 2 R EOUIRED M IN IMUM GAUGE 0 10 AN OPERATOR S MANUAL I S FURNISHED WITH E...

Page 33: ...2 0 1 2 7 TYPE I AND 2 ENCLOSURES FOR AUTOMATIC TRANSFER SWITCHES WITH OPTIONAL ACC 28 OVERLAPPING NEUTRAL TRANSFER CONTACT AMP FI G DIMENSIONS SIZE NO A B C D E F 30 70 1 7 5 0 3 1 00 1 1 62 1 4 50 1 50 28 00 1 00 1 50 444 5 787 4 295 1 368 3 38 I 7 1 1 2 260 1 8 0 48 00 1 3 00 1 5 00 1 50 45 00 400 I 457 2 1 2 1 9 2 330 2 38 1 0 38 I 1 1 43 0 600 30 00 63 00 1 7 50 2 7 00 1 50 60 00 800 762 0 1 ...

Page 34: ... H 0 62 0 43 E F 3 00 33 75 76 2 I 857 3 49 25 3 00 I 76 2 1 25 1 0 3 00 I 64 25 I 76 2 i 1 632 0 3 00 I 80 25 76 2 1 2038 4 1 1 5 7 0 1 0 9 0 62 0 43 I I t f II j j 1 5 7 0 1 0 9 0 62 0 43 1 5 7 0 1 0 9 0 62 0 43 1 5 7 0 1 0 9 f t CONSULT FACTORY TYPE 3R 4 AND 1 2 ENCLOSURES FOR AUTOMATIC TRANSFER SWITCHES WITH OPTI ONAL ACC 28 OVERLAPPING NEUTRAL TRANSFER CONTACT AMP FIG SIZE NO A 30 70 1 7 50 1...

Page 35: ...341 1 61 7 447 0068 MICHIGAN Northern Electrical Testing Inc 1987 Larchwood Troy MI 48083 2228 1 3 1 3 689 8980 MINNESOTA Process Measurement Co 5735 Lindsay Street Minneapolis MN 55422 1 61 2 544 4035 MISS IS SIPPI Control Systems Inc P O Box 4852 909 Quinn Street Jackson MS 39216 1 601 355 R Q4 MISSOURI AlC Control Manufacturing Co 1400 Spruce Kansas City MO 64127 1 816 231 6400 NEBRASKA Process...

Page 36: ...ation of engine generator sets and load demand controls See Section 6 of the ASCO Controls Catalog 50lid Sta1e Electronic Monitors ami Controls Power for monitoring voltage frequency and current controls for original equipment manufac turers Also monitors for synchronIZing phase band monitoring area protection etc See Section 8 of the ASCO Controls Catalog Control S Js ems for cogeneration peak lo...

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Asco 940, Operator'S Manual

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