Rockwell-automation DC3RD Digital Regenerative DC Drive User Guide 1/4 Manual de usuario

DC3RD Digital Regenerative DC DriveUser Guide1/4 to 2 HP, 115/230 VACInstruction Manual D2-3455250-0285-rev1.qxd 4/26/00 9:36 AM Page a

Load Regulationwith Armature Feedback 1% of base speed or betterwith Tachogenerator Feedback 0.1% of base speedDwell Time 0.1 – 1 second (0.1 second i

Drive RatingMotor HP Rated AC Input DC Armature DC Armature Field FieldLine Amps kVA Voltage Current Voltage Current1/4 4.2 0.48 90 2.7 50 14.2 0.97 1

4250-0285-rev1.qxd 4/26/00 9:36 AM Page 4

5DimensionsFigure 1. DC3RD Dimensions250-0285-rev1.qxd 4/26/00 9:36 AM Page 5

6InstallationATTENTION: Only qualified technical personnel,familiar with the construction and operation of thisequipment and the hazards involved, sho

MountingNEMA 4X enclosed drives come with three 0.88 inch (22mm) conduit knockout holes at the bottom of the case. Theunits may be vertically wall mou

8 InstallationWiringATTENTION: This drive is isolated from earthground. Circuit potentials are at 115 or 230 VAC aboveground. To prevent the risk of i

Shielding guidelines9InstallationAs a general rule, Reliance Electric recommends shieldingof all conductors if:• wire lengths exceed 4 inches and powe

The DC3RD drive has line fuses mounted on fuse holders501 and 502 (FU501 and FU502). When replacing the linefuses, use fast acting fuses rated for 250

11InstallationTable 1. Recommended Line Fuse Sizes90 VDC Motor 180 VDC Motor Max. DC Armature AC Line FuseHorsepower Horsepower Current (amps) Size (a

Important: Identifies information that is critical for successfulapplication and understanding of the product.ATTENTION: Identifies information about

12 InstallationCage-clamp terminalsDC3RD Series drive connections are made to cage-clampterminals. To insert a wire into a terminal, see Figure 2.1. P

13InstallationATTENTION: Do not connect this equipment withpower applied. Failure to heed this directive may resultin fire or serious injury.Connecti

14 InstallationNOTE: TERMINAL 1 ISHOT. TERMINALS 2 AND 3ARE NEUTRAL.Figure 3. Connections250-0285-rev1.qxd 4/26/00 9:36 AM Page 14

15InstallationField outputThe field output is for shunt wound motors only. Do notmake any connections to the field output when using apermanent magnet

16 InstallationLimit switch connections (optional)All connections to thelogic board are prewired(see prewired connectionson page 49). If yourapplicati

17InstallationSlide switchesATTENTION: Change voltage switch settings onlywhen the drive is disconnected from AC line voltage.Make sure both switches

18 InstallationFeedback SwitchSet to ARM for armature feedback,or TACH for tachogeneratorfeedback.Armature Voltage SwitchSet to 90 for 90 VDC motor,or

19InstallationMode select switchesMode select switches, located on the logic board (seeFigure 7), are preset with switch 1 OFF and switch 2 ON.This al

20 InstallationMode 1 (1 and 2 OFF) – Half cycle between forwardand reverse limit switches.Mode 2 (1 ON and 2 OFF) – Single cycle betweenforward and r

21OperationATTENTION: Only qualified technical personnel,familiar with the construction and operation of thisequipment and the hazards involved, shoul

iATTENTION: This drive is isolated from earth ground.Circuit potentials are at 115VAC or 230VAC above earthground. Avoid direct contact with the print

Before applying power• Verify that no conductive material is present on theprinted circuit board.• Set all switches to their proper settings.• Verify

Jogging the motorThe DC3RD digital drive has a jog option, allowing you tojog the motor in the forward or reverse direction as long asthe forward or r

24 OperationLimit switch operating modesThe following is a description of the four limit switchoperating modes.Mode 1 – Half cycle between forward and

25Operation1. Press the forward pushbutton forforward motor rotation.2. Motor rotates in the forwarddirection until the forward limitswitch opens.3. T

26 OperationMode 3 – Continuous cycle between forward andreverse limit switches1. Press the forward pushbutton forforward motor rotation.2. Motor rota

27Operation1. Press the forward pushbuttonfor forward motor rotation.ORPress the reverse pushbuttonfor reverse motor rotation.2. Motor rotates until t

28CalibrationATTENTION: Dangerous voltages exist on the drivewhen it is powered, and up to 30 seconds after power isremoved and the motor stops. When

Power board trimpotsMIN SPDMIN SPD may be calibrated if the CCW side of the speedadjust potentiometer is connected to S0 (S0 is in serieswith the MIN

FWD ACCThe FWD ACC trimpot setting determines the time themotor takes to ramp to either a higher speed in the forwarddirection or a lower speed in the

IR COMPThe IR COMP trimpot setting determines the degree towhich motor speed is held constant as the motor loadchanges. It is factory set for optimum

Specifications 1Dimensions 5Installation 6Mounting . ...7Wiring . . . ...

32 CalibrationFWD TQATTENTION: Although the FWD TQ trimpot is set to120% of motor nameplate current rating, continuous operationbeyond that rating may

6. Set the forward speed adjust potentiometer for maximumforward speed.7. Adjust the FWD TQ trimpot CW until the armaturecurrent is 120% of motor rate

34 CalibrationATTENTION: Do not turn DB past the 60 HZ setting.This could cause shoot through, which may blow fusesand cause the drive to fail.DBThe

Deadband is factory calibrated to approximately the 3o’clock position for 60 Hz AC line operation. Recalibratethe deadband to the 9 o’clock position f

36 CalibrationIMPORTANT: Calibrate the TACH trimpot setting onlywhen a tachogenerator is used.The TACH setting, like the IR COMP setting, determinesth

To calibrate the TACH:1. Connect the tachogenerator to T1 and T2. The polarity is“+” for T1 and “–” for T2 when the motor is running inthe forward dir

Logic board trimpotsFWD JOGThe FWD JOG trimpot setting determines the motor speedwhen it rotates in the forward direction in the jog mode. Tocalibrate

DWELL TIMEThe DWELL TIME trimpot setting determines the lengthof time the motor stops before rotating in the oppositedirection. DWELL TIME only works

40 CalibrationFigure 8. Recommended FWD TQ, REV TQ,and IR COMP Settings for DC3RD(actual settings may vary with each application)Figure 9. Deadband Se

41TroubleshootingATTENTION: This equipment is at line voltage whenAC power is connected. Disconnect and lockout allungrounded conductors of the AC pow

Calibration 28Power board trimpots ...29MINSPD ...29MAXSPD ...

Before applying power:Check the following steps before proceeding:1. The AC line voltage must be balanced, and match thevoltage on the drive nameplate

43TroubleshootingProblem PossibleCausesSuggestedSolutionsLine fuse blows 1. Line fuses are thewrong size.2. Motor cable orarmature is shortedto ground

44 TroubleshootingProblem PossibleCausesSuggestedSolutionsLine fuse does notblow, but the motordoes not run whenthe forward orreverse pushbuttonis pre

45TroubleshootingProblem PossibleCausesSuggestedSolutionsLine fuse does notblow, but the motordoes not run whenthe forward orreverse pushbuttonis pres

46 TroubleshootingProblem PossibleCausesSuggestedSolutionsMotor runs too fastat maximum speedsettingMotor will not reachthe desired speedMotor pulsate

47TroubleshootingProblem PossibleCausesSuggestedSolutionsMotor does notreverseMotor makes ahumming or buzzingnoiseFWD or REV JOGspeed is too slow orto

48 TroubleshootingFigure 10. DC3RD Block DiagramBlock Diagram250-0285-rev1.qxd 4/26/00 9:36 AM Page 48

49TroubleshootingPrewired ConnectionsFigure 11. Prewired Connections to L1, L2 (115) and L2 (230)250-0285-rev1.qxd 4/26/00 9:36 AM Page 49

50 TroubleshootingFigure 12. Touch Panel, Logic Board,and Power Board Connections250-0285-rev1.qxd 4/26/00 9:36 AM Page 50

Most non-regenerative, variable-speed DC drives controlcurrent flow to a motor in one direction. The direction ofcurrent flow is the same direction as

Figure 1. DC3RD Dimensions ...5Figure 2. Cage-Clamp Terminal ...12Figure 3. Connections ...

52 Regenerative DrivesFigure 13. Four Quadrant Operation250-0285-rev1.qxd 4/26/00 9:36 AM Page 52

Reliance Electric Corporation hereby certifies that itsDC3RD drive has been approved to bear the “CE” markprovided the conditions of approval have bee

AC Line FiltersIn addition to EMI/RFI safeguards inherent in the DC3RDdesign, external filtering is required. Reliance Electricrequires the Corcom® AC

Armature FiltersIf the end-user is not using a CE-approved motor, a filteron the armature must also be used. See Table 4 forrecommended armature filte

The end user must use the filtration listed in this addendumto comply with CE. The OEM may choose to providealternative filtering that encompasses the

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U.S. Drives Technical Support Tel: (1) 262.512.8176, Fax: (1) 262.512.2222, Email: [email protected], Online: www.ab.com/support/abdrives

Table 1. Recommended Line Fuse Sizes ...11Table 2. Field Output Connections ...15Table 3. AC Line Filters ...

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Max.Armature HP Range HP RangeCurrent with 115 VAC with 230 VACModel (Amps DC) Applied AppliedDC3R-12D-4X-010-DN 10.0 1/4–1 1/2–2AC Line Voltage 115/2