Leeson SCR Thyristor Motor Control User Manual

SPEEDMASTER™SCR THYRISTOR MOTOR CONTROLSCatalog Numbers174100, 174105, 174307, 174308, 174311, 174709,M1740005, M1740006, M1740007OPERATION MANUAL

4Dimensions SPEEDMASTER™ OPERATION MANUAL6.00 [152]8.00 [203]3.46 [88]1.72 [44]TWO 0.88 [22] CONDUIT HOLESALL DIMENSIONS IN INCHES [MILLIMETERS]2.50 [

5DimensionsSPEEDMASTER™ OPERATION MANUAL0102030405060708090100POWERSPEEDREVERSEFORWARDBRAKERUNWARNING!ALLOW MOTOR TO STOPBEFORE REVERSING6.00 [152]8.0

6Dimensions SPEEDMASTER™ OPERATION MANUAL8.20 [208]6.90 [175]6.30 [160]0.19[5]6.00 [152]7.78 [198]4.50 [1 14]0.13[3]2.50 [64]TWO 0.88 [22] KNOCKOUTSAL

7DimensionsSPEEDMASTER™ OPERATION MANUAL10.20 [259]6.90 [175]6.30 [160]1.37 [35]9.76 [248]7.00 [178]4.78 [121]2.37 [60]5.49 [139]0.13[3]2.50TWO 0.88 [

8Dimensions SPEEDMASTER™ OPERATION MANUALPOWER SPEED0.19[5]0.30 [8]0.13[3]5.50 [140]THREE 0.88 [11] KNOCKOUTSON 1.50 [38] CENTERSALL DIMENSIONS IN INC

9DimensionsSPEEDMASTER™ OPERATION MANUALPART NO. DIM “A” DIM “B” DIM “C”174314 4.40 [112] 3.00 [76] 0.7 [18]174316 7.78 [198] 6.00 [152] 0.89 [23]Heat

10SPEEDMASTER™ OPERATION MANUALChassis (uncased) drive installation Mounting• Drive components are sensitive to electrostatic fields. Avoidcontact wi

11InstallationSPEEDMASTER™ OPERATION MANUAL• Use 16–20 AWG wire for speed adjust potentiometer wiring.Use 14–16 AWG wire for AC line (L1, L2) and mo

12Installation SPEEDMASTER™ OPERATION MANUALShielding guidelinesWarningUnder no circumstances should power and logic leads bebundled together. Induce

13InstallationSPEEDMASTER™ OPERATION MANUALHeat sinkingModel 174311 requires an additional heat sink when thecontinuous armature current is above 5 AD

LIMITED WARRANTYA. Warranty - Leeson Electric Corporation (referred to as “the Corporation”) warrants that itsproducts will be free from defects in ma

14Installation SPEEDMASTER™ OPERATION MANUALTable 1. Recommended Line Fuse SizesFUSE SIZE (AMPS) FUSE SIZE (AMPS)MOTOR HP @ 115 VAC INPUT @ 230 VAC I

15InstallationSPEEDMASTER™ OPERATION MANUALWIPERCWWSPEED ADJUSTPOTENTIOMETERINSULATING DISKPANELSTARWASHERNUTMOUNT THROUGH A 0.38 IN. (10 MM) HOLEFigu

16Installation SPEEDMASTER™ OPERATION MANUALWarningDo not connect this equipment with power applied.Failure to heed this directive may result in fire

17InstallationSPEEDMASTER™ OPERATION MANUALPower inputConnect the AC line power leads to PCB terminals L1 and L2, orto a single-throw, double-pole mas

NOTE: DO NOT ADD LINE FUSE TO L2 UNLESS LINE VOLTAGE IS 230VAC.18Installation SPEEDMASTER™ OPERATION MANUALFigure 9. Chassis Drive ConnectionsSCR502R

19InstallationSPEEDMASTER™ OPERATION MANUALFigure 10. Voltage Follower ConnectionsVoltage followerInstead of using a speed adjust potentiometer, the

20Installation SPEEDMASTER™ OPERATION MANUALCased drive installation Mounting (NEMA 1 enclosures)NEMA 1 cased drives come with 0.88 inch (22 mm) condu

21InstallationSPEEDMASTER™ OPERATION MANUALMounting (NEMA 4 and NEMA 4/12 enclosures)NEMA 4/12 cased drives (models 174100 and 174105) comewith two 0.

22Installation SPEEDMASTER™ OPERATION MANUALTo mount the drive:1. Install the mounting screws.2. For access to the terminal strip, turn the slotted

23InstallationSPEEDMASTER™ OPERATION MANUALWarningDo not connect this equipment with power applied.Failure to heed this directive may result in fire o

iSPEEDMASTER™ OPERATION MANUALSafety Warnings• This symbol  denotes an important safety tip orwarning. Please read these instructions carefully befo

24Installation SPEEDMASTER™ OPERATION MANUALFigure 13. 174709 Connections115 OR 230VAC LINEVOLTAGE INPUTSEARTH GROUND(GREEN SCREW)A2A1115 VAC230 VACM

25SPEEDMASTER™ OPERATION MANUALBefore applying power• Set voltage switch SW501 to either 115 or 230 to match theAC line voltage. Set voltage switch S

26Operation SPEEDMASTER™ OPERATION MANUALStartup174311 and M17400071. Turn the speed adjust potentiometer full counterclockwise(CCW).2. Apply AC line

27OperationSPEEDMASTER™ OPERATION MANUAL1. Set the RUN/BRAKE switch to the BRAKE position. 2. Set the speed adjust potentiometer to “0” (full CCW).3

28Operation SPEEDMASTER™ OPERATION MANUAL1. Set the FORWARD/BRAKE/REVERSE switch to theBRAKE position.2. Set the speed adjust potentiometer to “0” (

29OperationSPEEDMASTER™ OPERATION MANUALAll drivesIf the motor or drive does not perform as described, disconnectthe AC line voltage immediately. Refe

30Operation SPEEDMASTER™ OPERATION MANUALLine starting and line stoppingLine stopping (removing AC line voltage) is recommended forinfrequent stopping

31OperationSPEEDMASTER™ OPERATION MANUALInhibit circuitMaintaining a connection between the inhibit pins causes themotor to coast to minimum speed. Re

32Operation SPEEDMASTER™ OPERATION MANUALS3S2S1RUNDECEL TOMIN SPEED10K OHMSPEED ADJUSTPOTENTIOMETERCWFigure 16. Run/Decelerate to Minimum Speed Switc

33OperationSPEEDMASTER™ OPERATION MANUALDynamic braking may be used to rapidly stop a motor (Figure 17). For the RUN/BRAKE switch, use a double pole,

Specifications 1Dimensions 3Installation 10Chassis (uncased) drive installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Mounting

34Operation SPEEDMASTER™ OPERATION MANUALSizing the dynamic brake resistorSize the dynamic brake resistor according to the motor currentrating (Table

35SPEEDMASTER™ OPERATION MANUALCalibrationWarningDangerous voltages exist on the drive when it is powered.When possible, disconnect the voltage input

36Calibration SPEEDMASTER™ OPERATION MANUALFigure 18. Calibration Trimpot LayoutSCR502R501C501IC502C503S1C502IC501A1D503MOV502A2D502-METER+SO502R502D

37CalibrationSPEEDMASTER™ OPERATION MANUALCalibration procedureCalibrate the drive using the following procedure:1. Set the MIN SPD, MAX SPD, ACCEL an

38Calibration SPEEDMASTER™ OPERATION MANUALMAXIMUM SPEED (MAX SPD)The MAX SPD setting determines the motor speed when thespeed adjust potentiometer is

39CalibrationSPEEDMASTER™ OPERATION MANUALTORQUE LIMIT (TORQUE)The TORQUE setting determines the maximum torque foraccelerating and driving the motor.

40Calibration SPEEDMASTER™ OPERATION MANUAL8. Remove power from the drive.9. Remove the lock from the motor shaft.10. Remove the ammeter in series w

41CalibrationSPEEDMASTER™ OPERATION MANUALTORQUE IR COMPTORQUE IR COMPTORQUE IR COMP1/8 HP90 VDC1800 RPM1.3 AMPS1/15 HP90 VDC1800 RPM0.77 AMPS1/4 HP18

42Calibration SPEEDMASTER™ OPERATION MANUALHPVDCRPMAMPSHPVDCRPMAMPSHPVDCRPMAMPSHPVDCRPMAMPSHPVDCRPMAMPSHPVDCRPMAMPSHPVDCRPMAMPSHPVDCRPMAMPSHPVDCRPMAMP

43SPEEDMASTER™ OPERATION MANUALMultiple fixed speedsReplace the speed adjust potentiometer with series resistors with a total series resistance of 10K

All drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29Starting and Stopping Methods . . . . . .

44Application Notes SPEEDMASTER™ OPERATION MANUALAdjustable speeds using potentiometers inseriesReplace the speed adjust potentiometer with a single p

45Application NotesSPEEDMASTER™ OPERATION MANUALIndependent adjustable speedsReplace the speed adjust potentiometer with a single pole, multi-position

46Application Notes SPEEDMASTER™ OPERATION MANUALRUN/JOG switchUsing a RUN/JOG switch is recommended in applications wherequick stopping is not needed

47Application NotesSPEEDMASTER™ OPERATION MANUALRUN/JOG option #2In the second wiring option, connect the RUN/JOG switch andthe JOG pushbutton as show

48Application Notes SPEEDMASTER™ OPERATION MANUALReversingA dynamic brake may be used when reversing the motordirection (Figure 26). Use a three pole,

49SPEEDMASTER™ OPERATION MANUALWarningDangerous voltages exist on the drive when it is powered.When possible, disconnect the drive while troubleshooti

50Troubleshooting SPEEDMASTER™ OPERATION MANUALCurrent limit LED (174011 and M1740007)174011 and M1740007 series drives are equipped with a red,PCB-mo

51TroubleshootingSPEEDMASTER™ OPERATION MANUALSymptom PossibleCausesSuggestedSolutionsFuse blows or circuitbreaker tripsLine fuse does notblow or circ

52Troubleshooting SPEEDMASTER™ OPERATION MANUALSymptom PossibleCausesSuggestedSolutionsLine fuse does notblow or circuit breakerdoes not trip, but the

53TroubleshootingSPEEDMASTER™ OPERATION MANUALSymptom PossibleCausesSuggestedSolutionsMotor pulsates orsurges under loadOn non-reversingdrives, motor

Figure 1. 174311 and M1740007 Dimensions . . . . . . . . . . . . . . . . . . . . . . .3Figure 2. 174307 and M1740005 Dimensions . . . . . . . .

54SPEEDMASTER™ OPERATION MANUALDISCLAIMERThe information and technical data in this manual are subject tochange without notice. LEESON Electric Corpor

Max. Armature HP Range HP RangeCurrent with 115 VAC with 230 VACModel (Amps DC) Applied Applied StyleM1740007 1.5 1/20–1/8 ChassisM1740005 NEMA 1M1740

2SPEEDMASTER™ OPERATION MANUAL0–180 VDC Armature Voltage 0.5–22 secondsDecel. Time Range0-90 VDC Armature Voltage coast to a stop–13 seconds0–180 VDC

3SPEEDMASTER™ OPERATION MANUALDimensions0.19 [5]1.60 [41]1.28 [33]0.96[24]SCR502R501C501IC502C503S1C502IC501IR COMPA1D503MOV502A2D502-METER+SO502R502D