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17

INHIBIT

A1

MOTOR

A2

Dynamic

Brake

Resistor

BRAKE

RUN

BRAKE

RUN

Figure 4.  Dynamic Brake Connection

Table 4.  Recommended Dynamic Brake Resistor Sizes

Motor

Minimum

Minimum

Armature

Dynamic Brake

Dynamic Brake

Current Rating

Resistor Value

Resistor Wattage

Less than 2 ADC

1 ohm

1W

2–3 ADC

5 ohm 

5W

3–5 ADC

10 ohm 

10W

5–10 ADC

20 ohm 

20W

10–17 ADC

40 ohm

50W

Operation

Summary of Contents for MM20000A Series

Page 1: ...SCR Adjustable Speed Drives for DC Brush Motors MM20000A MM20000A Series Series Models MM21111A MM21211A...

Page 2: ...without notice Minarik Corporation and its Divisions make no warranty of any kind with respect to this material including but not limited to the implied warranties of its merchantability and fitness f...

Page 3: ...of an electrical fire shock or explosion by proper grounding over current protection thermal protection and enclosure Follow sound maintenance procedures It is possible for a drive to run at full spee...

Page 4: ...ions 11 Drive power connections 11 Connections 11 Operation 13 Before applying power 13 MM21111A drive startup and shutdown 13 MM21211A drive startup and shutdown 14 Starting and Stopping Methods 15 L...

Page 5: ...table speeds using potentiometers in series 31 Multiple fixed speeds 32 RUN JOG switch 33 Leader follower application 34 Single speed potentiometer control of multiple drives 35 Troubleshooting 36 Bef...

Page 6: ...6 Figure 8 Forward Stop Reverse Switch 27 Figure 9 Reversing Circuit Connection 28 Figure 10 Reversing with a DLC600 29 Figure 11 Independent Adjustable Speeds Forward Direction 30 Figure 12 Adjustabl...

Page 7: ...s Numbering System vi Table 2 Field Output Connections 9 Table 3 Fuse Chart 10 Table 4 Recommended Dynamic Brake Resistor Sizes 17 Table 5 Replacement Parts 39 Table 6 Corcom Filters 41 Table 7 Minari...

Page 8: ...4 12 Non reversing 5 NEMA 4 12 Reversing A Standard B Conformal Coating C Used in Europe obsolete 1 MAX SPD MIN SPD TQ LIM IR COMP ACCEL and DECEL trimpots with Field Voltage Output 1 Unfiltered 1 8...

Page 9: ...0 90 VDC Field Voltage 1 ADC max 50 100 VDC Maximum Output Field Current 0 5 ADC Form Factor 1 37 at base speed Accel Time Range for 0 90 VDC Armature Voltage 0 5 11 seconds Decel Time Range for 0 90...

Page 10: ...6 88 2 50 64 1 72 44 5 00 127 1 79 45 2 50 64 2 50 64 Figure 1 MM21111A Drive Dimensions ALL DIMENSIONS IN INCHES MILLIMETERS Dimensions TWO 0 88 22 CONDUIT HOLES ON BOTTOM SIDE THREE KEYHOLES FOR 10...

Page 11: ...0 64 2 50 64 2 75 70 6 00 152 2 50 64 1 72 44 3 46 88 Figure 2 MM21211A Drive Dimensions ALL DIMENSIONS IN INCHES MILLIMETERS TWO 0 88 22 CONDUIT HOLES ON BOTTOM SIDE THREE KEYHOLES FOR 10 SCREW ON BA...

Page 12: ...components are sensitive to electrostatic fields Avoid direct contact with the circuit board Hold drive by the chassis only Protect the drive from dirt moisture and accidental contact Provide suffici...

Page 13: ...al strip remove the two screws from the front of the case by turning them counterclockwise Grasp the front cover and lift it straight out 2 Install the mounting screws in the three keyholes 3 Install...

Page 14: ...prevent the risk of injury or fatality avoid direct contact with the printed circuit board or with circuit elements Do not disconnect any of the motor leads from the drive unless power is removed or...

Page 15: ...of logic level leads is not practical the user should twist all logic leads with themselves to minimize induced noise It may be necessary to earth ground the shielded cable If noise is produced by de...

Page 16: ...and or motor and is not recommended m MM21111A The speed adjust pot connections on MM21111A drives are configured for unidirectional one way operation Reversing is accomplished by swapping the A1 and...

Page 17: ...onnections Table 2 Field Output Connections Line Voltage Approximate Connect Motor VAC Field Voltage VDC Field To 115 50 F1 and L1 115 100 F1 and F2 Use 18 AWG wire to connect the field output to a sh...

Page 18: ...e blocks are included on MM21111A and MM21211A only Table 3 lists the recommended line fuse sizes Table 3 Fuse Chart 90 VDC Motor Max DC Armature AC Line Fuse Horsepower Current amps Size amps 1 20 0...

Page 19: ...r voltage from A1 and A2 terminals It is assumed throughout this manual that when A1 is positive with respect to A2 the motor will rotate clockwise CW while looking at the output shaft protruding from...

Page 20: ...1A and MM21211A Connections 1 2 3 4 5 6 7 FIELD OUTPUT CONNECTIONS 90 VDC MOTOR 115 VAC INPUT F1 F2 A2 A1 NOT USED L1 L2 EARTH GROUND GREEN SCREW TB501 NOTE Do not connect field outputs if using a per...

Page 21: ...o zero speed full CCW 2 Set the POWER switch to ON The POWER ON indicator will light 3 Slowly turn the speed adjust knob clockwise until the desired speed is reached To shut down the drive Set the POW...

Page 22: ...ting with the RUN BRAKE switch When placed in the BRAKE position the motor is dynamically braked to a stop Motor may be started and stopped with the ON OFF toggle switch but when switched off will coa...

Page 23: ...top Line starting and stopping applying and removing AC line voltage is recommended for stopping in emergency situations only It is not recommended for frequent starting and stopping MM21111A Set the...

Page 24: ...motor or drive NOTE For motors rated 1 17 horsepower and lower a brake resistor is not necessary since the armature resistance is high enough to stop the motor without demagnetization Replace the dyna...

Page 25: ...Brake Connection Table 4 Recommended Dynamic Brake Resistor Sizes Motor Minimum Minimum Armature Dynamic Brake Dynamic Brake Current Rating Resistor Value Resistor Wattage Less than 2 ADC 1 ohm 1W 2 3...

Page 26: ...High voltages can cause serious or fatal injury m MM21000A Series drives have six user adjustable trimpots Each drive is factory calibrated to its maximum horsepower rating Readjust the calibration tr...

Page 27: ...19 Calibration DECEL S3 ACCEL S2 L2 INHIBIT C504 MIN SPD MAX SPD TORQUE MOV503 T501 IR COMP C502 IC501 S1 IC502 A1 Figure 5 Calibration Trimpot Layout ACCEL DECEL MAX SPD MIN SPD TORQUE IR COMP...

Page 28: ...just potentiometer full CCW Adjust the MIN SPD trimpot until the desired minimum motor speed is reached MAXIMUM SPEED MAX SPD The MAX SPD setting determines the motor speed when the speed adjust poten...

Page 29: ...dure 1 With the power disconnected from the drive connect a DC ammeter in series with the motor armature 2 Turn the TORQUE trimpot to minimum full CCW 3 Set the speed adjust potentiometer to maximum s...

Page 30: ...nimum full CCW 2 Rotate the speed adjust potentiometer until the motor runs at midspeed without load for example 900 RPM for an 1800 RPM motor A hand held tachometer may be used to measure motor speed...

Page 31: ...time 1 Set the speed adjust potentiometer full CCW The motor should run at minimum speed 2 Turn the speed adjust potentiometer full CW and measure the time it takes the motor to go from minimum to ma...

Page 32: ...deceleration time 1 Set the speed adjust potentiometer full CW The motor should run at maximum speed 2 Turn the speed adjust potentiometer full CCW and measure the time it takes the motor to go from m...

Page 33: ...IR COMP and TORQUE Settings settings may vary by application TORQUE IR COMP TORQUE IR COMP 1 20 HP 1800 RPM 90 VDC 0 56A CURR TORQUE IR COMP 1 15 HP 1800 RPM 90 VDC 0 75A CURR 1 8 HP 1800 RPM 90 VDC 1...

Page 34: ...ate current MOTOR FWD REV FWD REV A1 A2 Figure 7 Forward Reverse Switch Warning Do not change the FORWARD REVERSE switch setting while the motor is still running Plug reversing the motor not allowing...

Page 35: ...minimum of 125 volts and 150 to 200 of motor nameplate current FWD STOP REV switch MOTOR FWD REV FWD REV A1 A2 Coast to Stop Coast to Stop Figure 8 Forward Stop Reverse Switch Warning Do not change th...

Page 36: ...rated for at least the maximum DC armature voltage and maximum braking current Wait for the motor to stop completely before switching it to either the forward or reverse direction MOTOR FWD REV FWD RE...

Page 37: ...600 A DIGI LOK controller model DLC600 can be used in a reversing application The DIGI LOK must be inhibited while braking Without the inhibit feature the DIGI LOK will continue to regulate This will...

Page 38: ...ition switch to select between two independent speeds shown in the forward direction Figure 11 The speed adjust potentiometers can be mounted at two separate operating stations S3 S2 S1 SPEED 2 20K OH...

Page 39: ...i position switch and two or more potentiometers in series with a total series resistance of 10K ohms Figure 12 shows a connection for fixed high and low speed adjust potentiometers CW 5K OHM 5K OHM C...

Page 40: ...er with series resistors with a total series resistance of 10K ohms Figure 13 Add a single pole multi position switch with the correct number of positions for the desired number of fixed speeds R4 Tot...

Page 41: ...nd a single pole normally closed momentary operated pushbutton for the JOG pushbutton as shown in Figure 14 When the RUN JOG switch is set to JOG the motor decelerates to zero speed Press the JOG push...

Page 42: ...ollower drive and outputs a voltage proportional to the leader motor armature voltage The follower drive uses this voltage reference to set the speed of the follower motor An optional ratio potentiome...

Page 43: ...ion Figure 16 Optional ratio potentiometers can be used to scale the PCM4 output voltage allowing independent control of each drive Motor B Motor A A2 A1 S1 S2 Drive B A2 A1 S1 S2 Drive A ratio pot B...

Page 44: ...ection is correct and in good condition 5 Verify that there are no short circuits or grounded connections 6 Check that the drive s rated armature outputs are consistent with the motor ratings For addi...

Page 45: ...connections are open 3 Drive is overloaded 4 Drive is not receiving AC line voltage 5 Motor is not connected 1 Check that line fuses are 3 A 2 Check motor cable and armature for shorts 3 Decrease TOR...

Page 46: ...heck field connections 1 Recalibrate MIN SPD and MAX SPD page 20 1 Increase MAX SPD setting page 20 2 Increase IR COMP setting page 22 3 Check motor load Resize the motor and drive if necessary 1 Adju...

Page 47: ...1 0007 SCR501 502 S8020L High power SCR 072 0043 R501 0 05 Ohm 3W Resistor 032 0073 T501 ST 3 3109 115VAC Transformer 230 0083 Chassis 222 0079 10K Ohm Pot Kit 202 0031 Green Neon Lamp 040 0043 Toggle...

Page 48: ...ed to the following test specifications EN55011 1991 emissions and EN50082 1 1992 immunity Compliance allows Minarik s MM21000 series to bear the CE mark The end user as described herein falls into on...

Page 49: ...7 0 54 microFarads X 0 0055 microFarads Y R 330Kohms Rated current 1 4 times maximum DC motor current Filter type Balanced 2 section Table 6 Corcom Filters Nameplate Current of Motor Wired to the Driv...

Page 50: ...xact filter is not available the specifications are as follows L L1 2 0 8 milliHenries C C1 2 0 1 microFarads 400 VDC Rin 0 1 ohm Rout 1 2 ohm Table 7 Minarik Filters Nameplate Current of Motor Wired...

Page 51: ...st still submit his machine for CE approval Thus no component must necessarily meet CE within the machine as long as the OEM takes the necessary steps to guarantee the machine does meet CE By the same...

Page 52: ...44 Notes...

Page 53: ...45 Notes...

Page 54: ...46 Notes...

Page 55: ...C Limitations of Liability In the event of any claim for breach of any of the Corporation s obligations whether express or implied and particularly of any other claim or breech of warranty contained i...

Page 56: ...RIK or 800 646 2745 Fax 800 394 6334 www minarikcorp com Document Number 250 0077 Revision 3 Printed in the U S A 6 01 12 00 North America 13 00 Outside North America DLC600 XP Series AC or DC Input M...

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