1、 Wiring Diagram BookA115B1B21618B3A2B1 B31516 18Supply voltageLMH2 LevelsB2L1FU1460 VFU2GNDL3L2H1 H3 H2 H4FU3X1AFU4FU5X2ARPowerOnOptional115 VX1 X2230 VH1 H3 H2 H4Optional ConnectionElectrostaticallyShielded TransformerFU6OFFONM L1 L221OLSTOPMSTART3STARTSTARTSTOPSTOPFIBER OPTICTRANSCEIVERCLASS 9005
2、TYPE FTFIBER OPTICPUSH BUTTON,SELECTOR SWITCH,LIMIT SWITCH, ETC.FIBER OPTIC CABLEELECTRICALCONNECTIONSBOUNDARY SEAL TO BE INACCORDANCE WITH ARTICLE501-5 OF THE NATIONALELECTRICAL CODEHAZARDOUS LOCATIONS NONHAZARDOUS LOCATIONSCLASS I GROUPS A, B, C & DCLASS II GROUPS E, F & GCLASS IIIFIBER OPTIC CABL
3、EL1 L2 L3135A1 A2T1 T2 T3246OR DISCONNECT SWITCHL1L2L3CIRCUIT BREAKERSTARTSTOPMOT*T1T2T3MMSOLID STATEOVERLOAD RELAY1CTMMMOTOR3CTTO 120 VSEPARATECONTROL* OT is a switch that openswhen an overtemperaturecondition exists (Type MFOand MGO only)T1 T3MOTOR32L2T2L3T3T2L11T113144344535431322122Status(N.O. o
4、r N.C.)LocationA115B1B21618B3A2B1 B31516 18Supply voltageLMH2 LevelsB221221314X1X3ACL1L2LOADOrangeX2GreenAC1592610481214 (+)13 ()A1/+ 15 25 Z1 Z216 18 A2/Vs26 28A1A2File 0140 1993 Square D. All rights reserved. This document may not be copied in whole or in part, or trans-ferred to any other media,
5、without the written permission of Square D.Electrical equipment should be serviced only by qualified electrical maintenance personnel, and thisdocument should not be viewed as sufficient instruction for those who are not otherwise qualified tooperate, service or maintain the equipment discussed. Alt
6、hough reasonable care has been taken to pro-vide accurate and authoritative information in this document, no responsibility is assumed bySquare D for any consequences arising out of the use of this material.COPYRIGHT NOTICEPLEASE NOTE:QWIK-STOPand ALHPA-PAKare registered trademarks of Square D.NECis
7、 a registered trademark of the National Fire Protection Association.TRADEMARKSTable of ContentsiStandard Elementary Diagram Symbols .1-3NEMA and IEC Markings and Schematic Diagrams 4Control and Power Connection Table 4Terminology 5Examples of Control Circuits 62-Wire Control 63-Wire Control 6-9Shunt
8、ing Thermal Units During Starting Period 10Overcurrent Protection for 3-Wire Control Circuits 11AC Manual Starters and Manual Motor Starting Switches . 12Class 2510 12Class 2511 and 2512 132-Speed AC Manual Starters andIEC Motor Protectors 14Class 2512 and 2520 14GV1/GV3 14Drum Switches 15Class 2601
9、 15DC Starters, Constant and Adjustable Speed 16Class 7135 and 7136 16Reversing DC Starters, Constant andAdjustable Speed . 17Class 7145 and 7146 17Mechanically Latched Contactors 18Class 8196 18Medium Voltage Motor Controllers18-25Class 8198 18-25Solid State Protective Relays.26-27Class 8430 26-27G
10、eneral Purpose Relays 28Class 8501 28NEMA Control Relays. 29Class 8501 and 9999 29General Purpose Relays 30Class 8501 30Sensing Relays. 30RM2 LA1/LG1 30IEC Relays31-32IEC D-Line Control Relays 31Class 8501 32Type P Contactors.33-35Class 8502 33-35Class 8702 35Type T Overload Relays33-35Class 9065 33
11、-35Type S AC Magnetic Contactors36-40Class 8502 36-40IEC Contactors 41-42IEC Contactors and Auxiliary Contact Blocks 41Input Modules and Reversing Contactors 42Type S AC Magnetic Starters .43-50Class 8536 43-508538 and 8539 45,491-Phase, Size 00 to 3 432-Phase and 3-Phase, Size 00 to 5 443-Phase, Si
12、ze 6 453-Phase, Size 7 463-Phase Additions and Special Features 47-50Integral Self-Protected Starters .51-57Integral 18 State of Auxiliary Contacts 51-52Integral 32 and 63 State of Auxiliary Contacts 53-54Wiring Diagrams 55-57Type S AC Combination Magnetic Starters 58-59Class 8538 and 8539 58-593-Ph
13、ase, Size 0-5 583-Phase Additions and Special Features 59Reduced Voltage Controllers .60-66Class 8606 Autotransformer Type 60-61Class 8630 Wye-Delta Type 62-63Class 8640 2-Step Part-Winding Type 64Class 8647 Primary-Resistor Type 65Class 8650 and 8651 Wound-Rotor Type 66Solid State Reduced Voltage S
14、tarters 67Class 8660 ALPHA PAK, Type MD-MG 67Solid State Reduced Voltage Controllers .68-70Class 8660 Type MH, MJ, MK and MM 68-70Table of ContentsiiType S AC Reversing Magnetic Starters71-72Class 873671-722- and 3-Pole713- and 4-Pole72Type S AC 2-Speed Magnetic Starters73-76Class 881073-76Special C
15、ontrol Circuits75-76Multispeed Motor Connections76-771- Phase763-Phase76-77Programmable Lighting Controllers78Class 886578AC Lighting Contactors79-81Class 890379-81Load Connections79Control Circuit Connections80Panelboard Type Wiring81Electronic Motor Brakes81-82Class 8922 QWIK-STOP81-82Duplex Motor
16、 Controllers82Class 894182Fiber Optic Transceivers82Class 900582Photoelectric and Inductive Proximity Switches83Class 900683Photoelectric and Proximity Sensors84-89XS, XSC, XSF and XSD84XS and XTA85SG, ST and XUB86XUM, XUH, XUG, XUL and XUJ87XUE, XUR, XUD, XUG and XUE S88XUV89Limit Switches and Safe
17、ty Interlocks90-92Class 900791XCK and MS92Pressure Switches and Transducers93Class 9012, 9013, 9022 and 902593Level Sensors and Electric Alternators94Class 9034 and 903994Pneumatic Timing Relays and Solid State Industrial Timing Relays95-96Class 905095-96Timers97Class 905097Transformer Disconnects98
18、Class 907098Enclosure Selection Guide99Conductor Ampacity and Conduit Tables100-101Wire Data102Electrical Formulas103-104List of TablesTable 1 Standard Elementary Diagram Symbols 1Table 2 NEMA and IEC Terminal Markings 4Table 3 NEMA and IEC Controller Markings and Elementary Diagrams 4Table 4 Contro
19、l and Power Connections forAcross-the-Line Starters, 600 V or less4Table 5 Motor Lead Connections 64Table 6 Enclosures for Non-Hazardous Locations 99Table 7 Enclosures for Hazardous Locations 99Table 8 Conductor Ampacity100Table 9 Ampacity Correction Factors 101Table 10 Adjustment Factors 101Table 1
20、1 Ratings for 120/240 V, 3-Wire,Single-Phase Dwelling Services101Table 12 AWG and Metric Wire Data 102Table 13 Electrical Formulas for Amperes, Horsepower, Kilowatts and KVA 103Table 14 Ratings for 3-Phase, Single-Speed,Full-Voltage Magnetic Controllers for Nonplugglng and Nonjogging Duty 103Table 1
21、5 Ratings for 3-Phase, Single-Speed,Full-Voltage Magnetic Controllers for Plug-Stop, Plug-Reverse or Jogging Duty 104Table 16 Power Conversions 1041Table 1 Standard Elementary Diagram Symbols SWITCHES SELECTORSPUSH BUTTONS MOMENTARY CONTACT PUSH BUTTONS MAINTAINED CONTACTPILOT LIGHTS INSTANT OPERATI
22、NG CONTACTS TIMED CONTACTSThe diagram symbols in Table 1 are used by Square D and, where applicable, conform to NEMA (National Electrical Manufacturers Association)standards.Disconnect Circuit Interrupter Circuit Breakersw/ Thermal OLCircuit Breakersw/ Magnetic OLLimit SwitchesFoot SwitchesPressure
23、&Vacuum SwitchesLiquid Level Switches TemperatureActuated SwitchesFlow SwitchesSpeed (Plugging)FFRFRAnti-PlugN.O. N.C.Held Closed Held OpenN.O. N.C.N.O. N.C. N.O. N.C. N.O. N.C.N.O. N.C.JA1A2KJKA1A2JA1KA2LJKA1A2LA24B13ContactsSelectorPosition 1-2 3-4ABPushButtonFreeDepressedFreeDepressed= contact cl
24、osed2-Position Selector Switch3-Position Selector Switch2-Position Selector Push ButtonN.O. N.C. N.O. & N.C.(double circuit)MushroomHeadWobbleStickRIlluminated2 SingleCircuits1 DoubleCircuit ANon Push-to-TestGPush-to-Test(indicate color by letter)N.O. N.C.w/ BlowoutN.O. N.C.w/o BlowoutN.O.T.C. N.C.T
25、.O.EnergizedN.O.T.O. N.C.T.C.DeenergizedContact action retarded after coil is:Standard Elementary Diagram Symbols2INDUCTORS TRANSFORMERSOVERLOAD RELAYS AC MOTORSDC MOTORSWIRINGCAPACITORS RESISTORSSEMICONDUCTORSTable 1 Standard Elementary Diagram Symbols (contd)Iron Core Air Core Auto Iron Core Air C
26、ore Current Dual VoltageThermal Magnetic Single Phase 3-PhaseSquirrel Cage2-Phase, 4-Wire Wound RotorArmature Shunt Field(show 4 loops)Series Field(show 3 loops)Commutating orCompensating Field(show 2 loops)Not Connected Connected Power Control Terminal Ground MechanicalConnectionMechanicalInterlock
27、ConnectionAdjustableFixed FixedRESHeatingElementHAdjustable,by Fixed TapsRESRheostat,Potentiometer orAdjustable TapsRESDiode or HalfWave RectifierFull WaveRectifierACDC+DCACTunnelDiodeZenerDiodeBidirectionalBreakdown DiodePhotosensitiveCellTriac SCR PUTNPNTransistorBCEPNPTransistorBCEUJT,N BaseEB2B1
28、UJT,P BaseEB2B1Gate Turn-OfThyristorGAKStandard Elementary Diagram Symbols3OTHER COMPONENTSSUPPLEMENTARY CONTACT SYMBOLSIEC SYMBOLSSTATIC SWITCHING CONTROLStatic switching control is a method of switching electrical circuits without the use of contacts, primarily by solid state devices. To indicate
29、static switching control, use the symbols shown in this table, enclosing them in a diamond as shown.TERMSSPST: Single Pole, Single ThrowSPDT: Single Pole, Double ThrowDPST: Double Pole, Single ThrowDPDT: Double Pole, Double ThrowN.O.: Normally OpenN.C.: Normally ClosedT.O.: Timed OpenT.C.: Timed Clo
30、sedPUT: Programmable Unijunction TransistorSCR: Silicon Controlled RectifierTriac: Bidirectional Triode ThyristorUJT: Unijunction TransistorTable 1 Standard Elementary Diagram Symbols (contd)BatteryAnnunciatorBell Buzzer Horn, Alarm,Siren,etc.Meter (indicatetype by letters)VMMeter Shunt+Fuse Thermoc
31、oupleSingle BreakSPST, N.O.Double Break Single BreakSPST, N.C.Double Break Single BreakSPDTDouble BreakSingle BreakDPST, 2 N.O.Double Break Single BreakDPST, 2 N.C.Double Break Single BreakDPDTDouble BreakPush Buttons Coil Aux. ContactsN.O. N.C.N.O. N.C.ContactorBreakersLimit Switch, N.O., Static Co
32、ntrolStandard Elementary Diagram Symbols4Table 2 NEMA and IEC Terminal MarkingsTable 3 NEMA and IEC Controller Markings and Elementary DiagramsNEMAPower Terminals Control Terminals Coil TerminalsIECPower Terminals Control Terminals Coil TerminalsNEMATypical Controller Markings Typical Elementary Dia
33、gramIECTypical Controller Markings Typical Elementary DiagramTable 4 Control and Power Connections for Across-the-Line Starters, 600 V or less (From NEMA standard ICS 2-321A.60)1-Phase 2-Phase, 4-Wire 3-PhaseLine MarkingsL1, L2L1, L3: Phase 1L2, L4: Phase 2L1, L2, L3Ground, when usedL1 is always ung
34、rounded L2Motor Running Overcurrent, units in:1 element2 element3 elementL1L1, L4L1, L2, L3Control Circuit Connected toL1, L2 L1, L3 L1, L2For Reversing, Interchange Lines L1, L3 L1, L3L1T1L2T2L3T3Alphanumeric, correspondingto incoming line and motorterminal designationsNo specificmarkingNo standard
35、designation123456Single digit numeric,odd for supply lines,even for load connections14 222-digit numeric, 1stdesignates sequence,2nd designates function(1-2 for N.C., 3-4 for N.O.)A1A2A1A2 A3A1A2A3 A1A2B1B2OneWindingTappedWindingTappedWindingTwoWindings321/L1T1L2T2L3T3STOPOLSTART123L1 L2M12345613142
36、122A1A2STOPSTART11 23 241223 24A1 A2 95 96NEMA and IEC Markings and Schematic DiagramsControl and Power Connection Table5WIRING DIAGRAMA wiring diagram shows, as closely as possible, the actual location of all component parts of the device. The open terminals (marked by an open circle) and arrows re
37、present connections made by the user.Since wiring connections and terminal markings are shown, this type of diagram is helpful when wiring the device or tracing wires when troubleshooting. Bold lines denote the power circuit and thin lines are used to show the control circuit. Black wires are conven
38、tionally used in power circuits and red wire in control circuits for AC magnetic equipment.A wiring diagram is limited in its ability to completely convey the controllers sequence of operation. The elementary diagram is used where an illustration of the circuit in its simplest form is desired.ELEMEN
39、TARY DIAGRAMAn elementary diagram is a simplified circuit illustration. Devices and components are not shown in their actual positions. All control circuit components are shown as directly as possible, between a pair of vertical lines representing the control power supply. Components are arranged to
40、 show the sequence of operation of the devices and how the device operates. The effect of operating various auxiliary contacts and control devices can be readily seen. This helps in troubleshooting, particularly with the more complex controllers.This form of electrical diagram is sometimes referred
41、to as a “schematic” or “line” diagram.Terminology6Low Voltage Release:2-Wire ControlLow Voltage Protection:3-Wire ControlFIG. 1 FIG. 2Low voltage release is a 2-wire control scheme using a maintained contact pilot device in series with the starter coil.This scheme is used when a starter is required
42、to function automatically without the attention of an operator. If a power failure occurs while the contacts of the pilot device are closed, the starter will drop out. When power is restored, the starter will automatically pickup through the closed contacts of the pilot device.The term “2-wire” cont
43、rol is derived from the fact that in the basic circuit, only two wires are required to connect the pilot device to the starter.Low voltage protection is a 3-wire control scheme using momentary contact push buttons or similar pilot devices to energize the starter coil.This scheme is designed to preve
44、nt the unexpected starting of motors, which could result in injury to machine operators or damage to the driven machinery. The starter is energized by pressing the Start button. An auxiliary holding circuit contact on the starter forms a parallel circuit around the Start button contacts, holding the
45、 starter in after the button is released. If a power failure occurs, the starter will drop out and will open the holding circuit contact. When power is restored, the Start button mustbe operated again before the motor will restart.The term “3-wire” control is derived from the fact that in the basic
46、circuit, at least three wires are required to connect the pilot devices to the starter.2-Wire Control:Maintained Contact Hand-OFF-Auto Selector Switch3-Wire Control:Momentary Contact Multiple Push Button StationFIG. 3 FIG. 4A Hand-Off-Auto selector switch is used on 2-wire control applications where
47、 it is desirable to operate the starter manually as well as automatically. The starter coil is manually energized when the switch is turned to the Hand position and is automatically energized by the pilot device when the switch is in the Auto position.When a motor must be started and stopped from mo
48、re than one location, any number of Start and Stop push buttons may be wired together. It is also possible to use only one Start-Stop station and have several Stop buttons at different locations to serve as an emergency stop.Low Voltage Release and Low Voltage Protection are the basic control circui
49、ts encountered in motor control applications. The simplest schemesare shown below. Other variations shown in this section may appear more complicated, but can always be resolved into these two basicschemes.Note: The control circuits shown in this section may not include overcurrent protective devices required by applicable electrical codes. See page11 for examples of control circuit overcurrent protective devices and their use.M PILOT DEVICE SUCH ASLIMIT SWITCH,PRESSURE SWITCH, ETC.L1 L231OLM L1 L221OLSTOPMSTART3M A1A2A1A2IHAND OFF2-WIRE CONTROL DEVICEIAUTOL1 L23A2
