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Application Notes

Figure 13. Reversing with a DLC600

Reversing with a DLC600

DIGI-LOK® controller DLC600 can be used in a reversing
application. The controller must be inhibited while braking.
Without the inhibit feature, the controller will continue to
regulate, causing overshoot when the DIGI-LOK is switched
back to the drive.

Figure 13 shows the connection of the reversing circuit to an
MM30000 series drive and a DLC600.

NOTE: ONLY ONE FEEDBACK SOURCE (ENCODER
OR MAG PICKUP) MAY BE USED AT ANY ONE TIME.

250-0146r3_readers_spreads.qxd 7/10/01 4:40 PM Page 26

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Summary of Contents for MM30000 Series

Page 1: ...SCR Adjustable Speed Drives for DC Brush Motors User s Manual MM30000 Series Model MM31640A...

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: ...chance 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 f...

Page 4: ...10 Signal and optional switch connections 11 Operation 13 Before applying power 13 Drive startup and shutdown 13 To shut down the drive 14 Reversing 14 Starting and Stopping Methods 14 Line starting a...

Page 5: ...le speeds using potentiometers in series 28 Multiple fixed speeds 29 RUN JOG switch 30 Leader follower application 31 Single speed potentiometer control of multiple drives 32 Troubleshooting 33 Before...

Page 6: ...ot Layout 20 Figure 11 Typical IR COMP and TORQUE Settings 24 Figure 12 Reversing Circuit Connection 25 Figure 13 Reversing with a DLC600 26 Figure 14 Independent Adjustable Speeds 27 Figure 15 Adjust...

Page 7: ...Style MM31640A 115 3 2 1 8 Chassis AC Line Voltage Tolerance 10 50 60 Hz single phase Armature Voltage 0 90 VDC Analog Input Voltage Range signal must be isolated S1 to S2 0 3 VDC Input Impedance S1...

Page 8: ...2 Figure 1 Dimensions Dimensions...

Page 9: ...e anodized chassis surface and to reach bare metal Drive components are sensitive to electrostatic fields Avoid direct contact with the circuit board Hold drive by the chassis only Protect the drive f...

Page 10: ...To 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...

Page 11: ...gic 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 devices other...

Page 12: ...additional heat sinking is required Line fusing The MM31640A comes with a single 3A line fuse preinstalled The fuse size may be reduced to 1 5A if this control is used with motors smaller than 1 8 HP...

Page 13: ...gh a 0 38 inch 10 mm hole with the hardware provided Twist the speed adjust potentiometer wires to avoid picking up unwanted electrical noise Figure 2 Speed Adjust Potentiometer Installation Warning B...

Page 14: ...block 1 Carefully pull the terminal plug from the header block 2 With a small flat head screwdriver turn the terminal plug screw counterclockwise to open the wire clamp 3 Insert stripped wire into th...

Page 15: ...W while looking at the output shaft protruding from the front of the motor If this is opposite of the desired rotation simply reverse the wiring of A1 and A2 with each other Connect a DC motor to SO50...

Page 16: ...nections Connect the AC line power leads to SO501 terminals L1 and L2 or to a double throw single pole master power switch as shown in Figure 4 recommended 10 Installation Figure 4 Power and Motor Con...

Page 17: ...the speed adjust potentiometer to terminals S1 S2 and S3 of connector SO501 as shown in Figure 5 The CW terminal must be connected to S3 Inhibit switch Connect a single pole single throw switch to the...

Page 18: ...follow a 0 3 VDC analog input voltage signal that is isolated from earth ground Figure 6 Connect the signal input to S2 Connect the signal common to S1 Make no connection to S3 A potentiometer can be...

Page 19: ...ce signal or speed adjust potentiometer to minimum speed 2 Ensure that the INHIBIT switch is set to the RUN open position 2 Apply AC line voltage 3 Slowly turn the speed adjust potentiometer or increa...

Page 20: ...mends the installation of an emergency stop switch for chassis drives The switch contacts should be rated at a minimum of 250 volts and 200 of maximum motor current To shut down the drive To decelerat...

Page 21: ...t starting and stopping Decelerating to minimum speed The switch shown in Figure 7 may be used to decelerate a motor to a minimum speed Closing the switch between S1 and S2 decelerates the motor from...

Page 22: ...NHIBIT terminals to accelerate the motor to set speed Twist inhibit wires and separate them from power carrying wires or sources of electrical noise Use shielded cable if the inhibit wires are longer...

Page 23: ...the motor without demagnetization Replace the dynamic brake resistor with 12 gauge wire Dynamic braking may be used to rapidly stop a motor Figure 9 page 18 For the RUN BRAKE switch use a double pole...

Page 24: ...18 Operation Figure 9 Dynamic Brake Connection...

Page 25: ...ipment BE ALERT High voltages can cause serious or fatal injury The MM31640A drive has four user adjustable trimpots Each drive is factory calibrated to its maximum current rating Readjust the calibra...

Page 26: ...20 Calibration Figure 10 Calibration Trimpot Layout MINIMUM SPEED REGULATION IR COMP MAXIMUM SPEED TORQUE LIMIT...

Page 27: ...voltage signal or speed adjust potentiometer to zero 5 Apply power to the drive 6 Calibrate the trimpots as follows MINIMUM SPEED MIN SPD The MIN SPD setting determines the motor speed when the speed...

Page 28: ...es the degree to which motor speed is held constant as the motor load changes It is factory set for optimum motor regulation To calibrate IR COMP exact calibration 1 Turn the IR COMP trimpot full CCW...

Page 29: ...is firmly mounted 4 Apply line power The motor should be stopped Warning Although TORQUE LIMIT is set to 120 of maximum drive current rating continuous operation beyond that rating may damage the moto...

Page 30: ...ximum speed The motor should remain stopped 6 Slowly rotate the TORQUE trimpot clockwise CW until the ammeter reads 120 of maximum motor armature current 7 Set the speed adjust potentiometer or refere...

Page 31: ...ing the motor direction Figure 12 Use a three pole three position switch rated for at least the maximum DC armature voltage and maximum braking current Wait for the motor to stop completely before swi...

Page 32: ...ntroller must be inhibited while braking Without the inhibit feature the controller will continue to regulate causing overshoot when the DIGI LOK is switched back to the drive Figure 13 shows the conn...

Page 33: ...pole two position switch to select between two independent speeds shown in the forward direction Figure 14 The speed adjust potentiometers can be mounted at two separate operating stations Figure 14 I...

Page 34: ...djust potentiometer with a single pole multi position switch and two or more potentiometers in series with a total series resistance of 10K ohms Figure 15 shows a connection for fixed high and low spe...

Page 35: ...tentiometer with series resistors with a total series resistance of 10K ohms Figure 16 Add a single pole multi position switch with the correct number of positions for the desired number of fixed spee...

Page 36: ...ition switch for the RUN JOG switch and a single pole normally closed momentary operated pushbutton for the JOG pushbutton as shown in Figure 17 When the RUN JOG switch is set to JOG the motor deceler...

Page 37: ...the leader motor from the follower 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 A...

Page 38: ...trolled with a single speed adjust potentiometer using a PCM4 at the input of each drive to provide isolation Figure 19 Optional ratio potentiometers can be used to scale the PCM4 output voltage allow...

Page 39: ...connection is correct and in good condition Verify that there are no short circuits or grounded connections Check that the drive s rated armature outputs are consistent with the motor ratings For add...

Page 40: ...ne or more of the following conditions may exist 1 The TORQUE trimpot setting may be too low for the motor and load Adjust the TORQUE setting as described starting on page 23 Under no circumstances ma...

Page 41: ...35 Figure 20 Diagnostic LED Locations POWER LED CURRENT LIMIT LED...

Page 42: ...o speed 2 Speed adjust potentiometer or reference signal connections are open 1 Check that line fuses are the proper size 2 Check motor cable and armature for shorts 3 Add a blower to cool the drive c...

Page 43: ...settings are too high MIN SPD and MAX SPD are not calibrated 1 MAX SPD setting is too low 2 IR COMP setting is too low 3 Motor is overloaded 3 Verify that the motor is not jammed Increase TORQUE setti...

Page 44: ...bleshooting Motor pulsates or surges under load 1 IR COMP is set too high 2 Control is in current limit mode 1 Adjust the IR COMP setting slightly CCW until the motor speed stabilizes page 22 2 Check...

Page 45: ...ower SCR 072 0024 R501 0 1 Ohm 5W Resistor 032 0014 R502 5K Ohm 5W Resistor 032 0088 Chassis 222 0079 10K Ohm Pot Kit 202 0003 202 0003 POTENTIOMETER KIT CONTENTS 1 EA 10K OHM Potentiometer 5W 5 TOL 1...

Page 46: ...Notes...

Page 47: ...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 48: ...Tel 800 MINARIK 646 2745 Fax 800 394 6334 www minarikcorp com Document Number 250 0089 Revision 3 Printed in the U S A 6 01 12 00 North America 13 00 Outside North America DLC600 BOSS Series MMRGD Se...

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