User Manual - Galco Industrial Electronics
Contents
1. 9 80 249 7 00 178 1 40 36 6 30 160 s 6 90 175 1 LIL ALL DIMENSIONS IN INCHES MILLIMETERS FOUR 4 MOUNTING SLOTS 0 19 5 X 0 30 8 DEEP Figure 1 MM501U Dimensions Installation Mounting A Warning Do not install rewire or remove this control with input power applied Doing so may cause fire or serious injury Make sure you have read and understood the Safety Warnings on page i before attempting installation Drive 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 sufficient room for access to the terminal block and calibration trimpots Mount the drive away from heat sources Operate the drive within the specified ambient operating temperature range Prevent loose connections by avoiding excessive vibration of the drive Mount drive with its board in either a horizontal or vertical plane vertical mounting is preferred see Figure 1 page 2 Four 0 19 in 5 mm wide slots in the chassis accept 8 pan head screws Fasten either the large base or the narrow flange of the chassis to the subplate2. 12 Voltage Signal tet eee Euer da 12 C rrent SigBlall users IS EVER ERIS a ate 12 Operation 14 Before applying power 14 Staup Loos d Red udi ug Dx Ro a Rod BE 15 Diagnostic LEDS ge ey 16 Line starting and line stopping 17 Start Stop Pushbuttons 17 Dynamic Braking hmm tcm 17 Calibration 20 Maximum Speed SPD 22 Minimum Speed MIN SPD 22 Current Limit raen kr 23 IR Compensation COMP 24 Acceleration ACCEL 26 Deceleration DECEL 26 TACH VOLTS n 27 Application Notes 30 Multiple Fixed Speeds cese dre te em 30 Adjustable speeds using potentiometers in series 31 Independent adjustable speeds 32 Sa a ss i gaupe 33 Reversing with DLC600 controller 34 Troubleshooting 35 Before troubleshooting 35 Replacement Parts eee RR 39 Unconditional Warranty 41 back cover Tables Table 1 Field Ouptut Connections 11
3. MA _ _ Automation amp Control 4 9 0 SCH Dual Voltage Adjustable Speed Drive for DC Brush Motors Copyright 2002 by Minarik Corporation All rights reserved No part of this manual may be reproduced or transmitted in any form without written permission from Minarik Corporation The information and technical data in this manual are subject to change 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 for a given purpose Minarik Corporation and its Divisions assume no responsibility for any errors that may appear in this manual and make no commitment to update or to keep current the information in this manual 091302 Printed in the United States of America Safety Warnings x BE HAZARD HEAT DRY VIBRATION This symbol AN denotes an important safety tip or warning Please read these instructions carefully before performing any of the procedures contained in this manual DO NOT INSTALL REMOVE OR REWIRE THIS EQUIPMENT WITH POWER APPLIED Have qualified electrical technician install adjust and service this equipment Follow the National Electrical Code and all other applicable electrical and safety codes including the provisions of the Occupational Safety and Health Act OSHA when installing equipment
4. Reduce the 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 full speed as a result of a component failure Minarik strongly recommends the installation of a master switch in the main power input to stop the drive in an emergency Circuit potentials are at 115 VAC or 230 VAC above earth ground Avoid direct contact with the printed circuit board or with circuit elements to prevent the risk of serious injury or fatality Use a non metallic screwdriver for adjusting the calibration trimpots Use approved personal protective equipment and insulated tools if working on this drive with power applied Contents Specifications 1 Dimensions 2 Installation 3 Mounting esee erm he Rosen 3 FUSOS inar det den ToU 4 VII arcade cue 4 Cage clamp Terminal Block 5 Speed adjust potentiometer 6 Shielding guidelines 7 GONNECHONG EORR 8 Power fuse and motor connections 8 Power IDnDUE uode o 9 Doo aire ay anand naka 9 Field Output a ese ee eae nd Eee 11 Star Stop PushbU ltons 1 aed emere hore pe ee te 11 Tachogenerator Feedback
5. Table 2 Recommended Dynamic Brake Resistor Sizes 18 Table 3 Replacement Parts 39 iv Illustrations Figure 1 MM501U Dimensions 2 Figure 2 Cage Clamp Terminal 5 Figure 3 Speed Adjust Potentiometer 6 Figure 4 MM501U Connections 10 Figure 5 Voltage or Current Signal Connections 13 Figure 6 Diagnostic LED 16 Figure 7 Dynamic Brake Connection 19 Figure 8 Calibration Trimpot Layout 21 Figure 9 CURRENT LIMIT and IR COMP Settings 25 Figure 10 Feedback Switch SW503 Location 28 Figure 11 Tachogenerator Connections 29 Figure 12 Multiple Fixed Speeds 30 Figure 13 Adjustable Speeds Using Potentiometers in Series 31 Figure 14 Independent Adjustable Speeds 32 Figure 15 Reversing Circuit 33 Figure 16 Independent Forward and Reverse Speeds 34 Specifications Model Number MM501U Type Open Chassis Line Fuse Rating 40A Buss Type SC 40 or equivalent Field Fuse Rating 3A fast acting Horsepower Range 90 VDC Output 1 2 5 HP Horsepower Range 180 VDC Output 2 5HP
6. The chassis must be earth grounded Use a star washer beneath the head of at least one of the mounting screws to penetrate the anodized chassis surface and to reach bare metal 4 Installation Fuses MM501U drives have two 40 line fuses installed in Fuse Holder 501 FH501 Line fuses are rated for maximum rated horsepower Resize line fuses if using a smaller horsepower motor Size fuses for approximately 150 of the maximum motor armature current One 3A field fuse FU503 is also installed on the drive This fuse does not have to be resized if using a smaller horsepower motor Wiring A Warning Do not install remove or rewire this equipment with power applied Failure to heed this warning may result in fire explosion or serious injury Circuit potentials are at 115 or 230 VAC above ground 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 and the drive is disabled Opening any one motor lead may destroy the drive Use 18 AWG wire for speed adjust potentiometer wiring Use 16 AWG wire for field F1 F2 wiring Use 14 AWG wire for AC line L1 L2 and motor A1 A2 wiring Installation 5 Cage clamp Terminal Block MM501U drives use a cage clamp terminal block for terminal block 502 TB502 To connect a wire to the cage clamp terminal block see Figure 2 use a
7. incidental expenses incurred in shipping the product to and from the repair point B Disclaimer The provisions of Paragraph A are the Corporation s sole obligation and exclude all other warranties of merchantability for use express or implied The Corporation further disclaims any responsibility whatsoever to the customer or to any other person for injury to the person or damage or loss of property of value caused by any product that has been subject to misuse negligence or accident or misapplied or modified by unauthorized persons or improperly installed 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 in Paragraph A or of any other warranties express or implied or claim of liability that might despite Paragraph B be decided against the Corporation by lawful authority the Corporation shall under no circumstances be liable for any consequential damages losses or expense arising in connection with the use of or inability to use the Corporation s product for any purpose whatsoever An adjustment made under warranty does not void the warranty nor does it imply an extension of the original 12 month warranty period Products serviced and or parts replaced on a no charge basis during the warranty period carry the unexpired portion of the original warranty only If for any reason any
8. with a 2 HP 180 VDC motor Re adjust the calibration trimpot settings to accommodate motors with different ratings All adjustments increase with CW rotation and decrease with CCW rotation Use a non metallic screwdriver for calibration Each trimpot is identified on the printed circuit board See Figure 8 page 21 for trimmer pot locations on the PCB POWER ve N og 1501 25 2 10801 16502 TB502 1 2 1 s2 3 r1 r2 K501 N 1089 2054 Calibration 21 CURRENT LIMIT IR COMP TACH VOLTS ACCELERATION DECELERATION Figure 8 Calibration Trimpot Layout 22 Calibration Maximum Speed MAX SPD The MAX SPD trimpot setting determines the maximum speed It is factory set for maximum rated motor speed To calibrate MAX SPD 1 Set the MAX SPD trimpot full CCW 2 Turn the speed adjust potentiometer full CW 3 Adjust the MAX SPD trimpot CW until the desired maximum motor speed is reached Minimum Speed MIN SPD The MIN SPD setting determines the motor speed when the speed adjust potentiometer is turned full CCW It is factory set to zero speed To calibrate MIN SPD 1 Set the MIN SPD trimpot full CCW 2 Turn the speed adjust potentiometer full CCW 3 Adjust the MIN SPD trimpot CW until the desired maximum motor speed is reached Calibration 23 Current Limit A Warning TORQUE should be set to 120 of motor nameplate current rat
9. LTAGE SIGNAL 020 Cin LMT CURRENT SIGNAL 5 Figure 10 Feedback Switch SW503 Location Calibration 29 TACH GENERATOR optional POS ACCEL P505 LIMIT Sj CURRENT IRCOMP 1503 gt M Qus on O q D TAX MAX MN T E 1502 16505 os ED CS cw Figure 11 Tachogenerator Connections 1C503 30 Application Notes Multiple Fixed Speeds Replace the speed adjust potentiometer with series resistors with a total series resistance of 10K ohms Figure 12 Add a single pole multi position switch with the correct number of positions for the desired number of fixed speeds TOTAL SERIES RESISTANCE 10K OHMS Figure 12 Multiple Fixed Speeds Application Notes 31 Adjustable speeds using potentiometers in series Replace the speed adjust potentiometer with a single pole multi position switch and two or more potentiometers in series with a total series resistance of 10K ohms Figure 13 shows a connection for fixed high and low speed adjust potentiometers OHM Figure 13 Adjustable Speeds Using Potentiometers in Series 32 Application Notes Independent adjustable speeds Replace the speed adjust potentiometer with a single pole multi position switch and two or more potentiometers in parallel resistance of 10K ohms Figure 14 shows the connection of two independent speed adjust poten
10. Line fuse does not blow but the motor does not run Possible Causes 1 Speed adjust potentiometer or reference voltage is Set to zero speed Speed adjust potentiometer or reference voltage is not connected to drive input properly connections are open The drive is not receiving AC line voltage Drive is in current limit The red CURRENT LIMIT LED must be off Troubleshooting 37 Suggested Solutions Increase the speed adjust potentiometer setting or reference voltage Check connections to input Verify that connections are not open Verify that the drive is receiving AC line voltage The green POWER LED should be lit when AC line voltage is applied If the red CURRENT LIMIT LED is on verify that the motor is not jammed It may be necessary to increase the CURRENT LIMIT trimpot setting 38 Troubleshooting Problem Motor runs too fast Possible Causes 1 MAX SPD not calibrated Suggested Solutions Calibrate MAX SPD Motor will not reach the desired speed MAX SPD setting is too low IR COMP setting is too low Motor is overloaded Increase MAX SPD setting Increase IR COMP setting Check motor load Resize the motor and drive if necessary Motor pulsates or surges under load IR COMP is set too high Motor bouncing in and out of current limit Adjust the IR COMP setting slightly CCW un
11. Maximum Armature Voltage Range 115 VAC Input 0 90 VDC Maximum Armature Voltage Range 230 VAC Input 0 180 VDC Minimum Speed Adjustment Range 115 VAC Input 0 60 VDC Minimum Speed Adjustment Range 230 VAC Input 0 120 VDC Maximum Armature Current 25 ADC Field Voltage 115 VAC Input 50 VDC F1 to L1 or 100 VDC F1 to F2 Field Voltage 230 VAC Input 100 VDC F1 to L1 or 200 VDC F1 to F2 Form Factor 1 37 Acceleration Time Range no load 0 90 VDC Armature Voltage 0 180 VDC Armature Voltage 0 5 12 seconds 0 5 12 seconds Deceleration Time Range no load 0 90 VDC Armature Voltage 0 180 VDC Armature Voltage 0 5 12 seconds 0 5 12 seconds Analog Input Voltage Range grounded and isolated signal S1 to S2 0 10 VDC Speed Adjustment Potentiometer 10Kohm Approximate Input Impedance S1 to S2 voltage signal setting 100K ohm Speed Regulation 6 of base speed Armature Feedback 1 or better Tachogenerator Feedback 0 196 Tachogenerator Feedback Voltage Range 7 50 VDC per 1000 RPM Weight 3 8 Ib Ambient Operating Temperature Range see notes Notes 10 40 when mounted flat horizontally or in an enclosure whose volume is between 4 and 6 cubic feet 10 50 when mounted upright with heatsink fins vertical in an enclosure greater than 6 cubic feet 2 Dimensions
12. cluding motor controls As a general rule Minarik recommends shielding of all conductors If it is not practical to shield power conductors Minarik recommends shielding all logic level leads If shielding logic 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 than the drive ground the shield at the drive end If noise is generated by a device on the drive ground the shield at the end away from the drive Do not ground both ends of the shield If the drive continues to pick up noise after grounding the shield it may be necessary to add AC line filtering devices or to mount the drive in a less noisy environment 8 Installation Connections A Warning Do not connect this equipment with power applied Failure to heed this directive may result in fire or serious injury Minarik strongly recommends the installation of a master power switch in the voltage input line as shown in Figure 4 page 10 The switch contacts should be rated at a minimum of 200 of motor nameplate current and 250 volts Power fuse and motor connections Connect the power input leads an external line fuse and a DC motor to the drive s printed circuit board PCB as shown in Figure 4 page 10 Installation 9 Power input Connect the AC line power leads to terminals L1 and L2 orto a double thr
13. ed See Specifications on page 1 for approximate deceleration times The DECEL setting is factory set to its minimum value full CCW Turn the DECEL trimpot CW to increase the deceleration time and CCW to decrease the deceleration time Calibration 27 TACH VOLTS A Warning Calibrate the TACH VOLTS setting only when a tachogenerator is used The TACH VOLTS setting like the IR COMP setting determines the degree to which motor speed is held constant as the motor load changes To calibrate the TACH VOLTS trimpot 1 Connect the tachogenerator to T1 and T2 The polarity is positive for T1 and negative for T2 when the motor is running in the forward direction 2 Set switch 503 SW503 to ARM for armature feedback 3 Set the speed adjust potentiometer full CW Measure the armature voltage across A1 and A2 using a voltmeter Set the speed adjust potentiometer to 0 zero speed Set SW503 to TACH for tachogenerator feedback Set the IR COMP trimpot to full CCW Set the TACH VOLTS trimpot to full CW Set the speed adjust potentiometer to full CW Adjust the TACH VOLTS trimpot until the armature voltage is the same value as the voltage measured in step 3 A Check that the VOLTS is properly calibrated The motor should run at the same set speed when SW503 is set to either armature or tachogenerator feedback 28 Calibration SW503 FEEDBACK SWITCH TACH vous VO
14. he drive is follow a current signal 502 501 MAX 16501 16502 16505 LD VOLTAGE SIGNAL SPD SPD B H TB502 C500 CD C 657 Installation 13 0 10 VDC VOLTAGE SIGNAL or 4 20 mA CURRENT SIGNAL Figure 5 Voltage or Current Signal Connections 14 Operation Warning Dangerous voltages exist on the drive when it is powered BE ALERT High voltages can cause serious or fatal injury For your safety use personal protective equipment PPE when operating this drive To avoid drive or motor damage change switch settings only when the drive is disconnected from the AC line voltage Make sure all switches are set to their correct position Before applying power Verify that no conductive material is present on the printed circuit board Set SW501 and SW502 to either 115 or 230 to match the AC line voltage Set SW503 to either TACH for tachogenerator feedback or ARM for armature feedback Set SW504 to either 90 or 180 to match the motor armature voltage Set SW505 to either CURRENT SIGNAL or VOLTAGE SIGNAL to match the input signal being used If a speed adjust potentiometer is being used set the switch to VOLTAGE SIGNAL Operation 15 Startup 1 Turn the speed adjust potentiometer full counterclockwise CCW If the drive is following a voltage signal set the voltage signal to 0 VDC If the drive is following a current signal se
15. ing Continuous operation beyond this rating may damage the motor If you intend to operate beyond the rating contact your Minarik representative for assistance The CURRENT LIMIT setting determines the maximum armature output of the drive It is factory set at 120 of rated motor current Re calibrate the CURRENT LIMIT when using a lower current rated motor See Figure 9 page 25 for approximate trimpot settings or re calibrate using the following procedures 1 With the power disconnected from the drive connect a DC ammeter in series with the armature 2 Set the TORQUE trimpot to minimum full CCW 3 Set the speed adjust potentiometer to maximum speed full CW 4 Carefully lock the motor armature Be sure that the motor is firmly mounted 5 Apply line power The motor should be stopped 6 Slowly adjust the TORQUE trimpot CW until the armature current is 120 of motor rated armature current 7 Turn the speed adjust potentiometer CCW until the motor stops 8 Remove line power 9 Remove the stall from the motor 10 Remove the ammeter in series with the motor armature if it is no longer needed 24 Calibration IR Compensation IR COMP The IR COMP trimpot setting determines the degree to which motor speed is held constant as the motor load changes It is factory set for optimum motor regulation Refer to Figure 9 on page 25 for recommended settings or use the following procedure to recalibrate the IR COMP setti
16. ng 1 Set the IR COMP trimpot to minimum 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 3 Load the motor armature to its full load armature current rating The motor should slow down 4 While keeping the load on the motor rotate the IR COMP trimpot CW until the motor runs at the speed measured in step 2 If the motor oscillates overcompensation the IR COMP trimpot may be set too high CW Turn the IR COMP trimpot CCW to stabilize the motor 5 Unload the motor 5 180 VDC 1750 24 AMPS CURRENT LIMIT 3HP 180 VDC 1750 RPM 13 7 APMS CURRENT 2HP 180 VDC 1750 RPM 9 2 AMPS CURRENT IR LIMIT CURRENT CURRENT LIMIT Calibration 25 IR 1 1 2 HP 180 VDC 1800 RPM 7 AMPS 1 HP 90 VDC 2500 RPM 10 AMPS Figure 9 CURRENT LIMIT and IR COMP Settings 26 Calibration Acceleration ACCEL The ACCEL setting determines the time the motor takes to ramp to a higher speed See Specifications on page 1 for approximate acceleration times The ACCEL setting is factory set to its minimum value full CCW Turn the ACCEL trimpot CW to increase the acceleration time and CCW to decrease the acceleration time Deceleration DECEL The DECEL setting determines the time the motor takes to ramp to a lower spe
17. ning Dangerous voltages exist on the drive when it is powered When possible disconnect the drive while troubleshooting High voltages can cause serious or fatal injury Before troubleshooting Perform the following steps before starting any procedure in this section 1 Disconnect AC line voltage from the drive 2 Check the drive closely for damaged components 3 Check that no wire chips or other foreign material has become lodged on the printed circuit board 4 Verify that every connection is correct and in good condition Verify that there are no short circuits or grounded connections 6 Check that the voltage selection switch settings match the AC line voltage For additional assistance contact your local Minarik distributor the factory direct 1 800 MINARIK 646 2745 or Fax 1 800 394 6334 36 Problem Line fuse blows Troubleshooting Possible Causes 1 Line fuse is the wrong size Motor cable or armature is shorted to ground Nuisance tripping caused by a combination of ambient conditions and high current Spikes i e reversing Suggested Solutions 1 Check that the line fuse is correct for the motor size Check motor cable and armature for shorts Add a blower to cool the drive components decrease CURRENT LIMIT setting or resize motor and drive for actual load demand Check for incorrectly aligned mechanical components or Problem
18. of the foregoing provisions shall be ineffective the Corporation s liability for damages arising out of its manufacture or sale of equipment or use thereof whether such liability is based on warranty contract negligence strict liability in tort or otherwise shall not in any event exceed the full purchase price of such equipment Any action against the Corporation based upon any liability or obligation arising hereunder or under any law applicable to the sale of equipment or the use thereof must be commenced within one year after the cause of such action arises Automation amp Control 901 E Thompson Avenue Glendale CA 91201 2011 Tel 1 800 MINARIK 646 2745 Fax 1 800 394 6334 www minarikcorp com Document number 250 0215 Revision 2 Printed in the U S A September 2002
19. ow single pole master power switch recommended Motor Minarik drives supply motor 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 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 armature to PCB terminals A1 and A2 as shown in Figure 4 page 10 Ensure that the motor voltage rating is consistent with the drive s output voltage 10 Installation Figure 4 MM501U Connections TACHOGENERATOR OPTIONAL 10KOHM SPEED ADJUST POTENTIOMETER SIGNAL CONNECTIONS POWER FIELD OUTPUT CONNECTIONS SHUNT WOUND MOTORS ONLY OT0 115 230 VAC INPUT VOLTAGE EMERGENCY STOP SWITCH Installation 11 Field Output The field output is for shunt wound motors only DO NOT make any connections to the field output when using a permanent magnet motor Table 1 lists the field output connections Table 1 Field Ouptut Connections Line Voltage Approximate Field Field VAC Voltage VDC Connections 115 50 F1 and L1 115 100 F1 and F2 230 100 F1 and L1 230 200 F1 and F2 Use 18 AWG wire to connect the field output to a shunt wound motor Start Stop Pushbuttons The drive can be operated with Start Stop pu
20. se a three pole double throw switch rated for at least the maximum DC armature voltage and maximum braking current Size the dynamic braking resistor according to the motor current rating Table 2 page 18 The dynamic brake resistance listed in the table is the smallest recommended resistance allowed to prevent possible demagnetization of the motor The motor stops less rapidly with higher brake resistor values 18 Operation Table 2 Recommended Dynamic Brake Resistor Sizes Motor Armature Minimum Dynamic Minimum Dynamic Current Rating Brake Resistor Brake Resistor ADC Value Ohms Power Watts Less than 2 1 1 2 3 5 5 3 5 10 10 5 10 20 20 10 17 40 50 17 30 100 200 For motors rated 1 17 horsepower and less dynamic brake resistor is not necessary since the armature resistance is high enough to stop the motor without demagnetization Replace the dynamic brake resistor with 12 gauge wire Operation 19 5010 A1 A2 B1 B3 DYNAMIC BRAKE RESISTOR RUN Figure 7 Dynamic Brake Connection 20 Calibration A Warning Dangerous voltages exist on the drive when it is powered When possible disconnect the voltage input from the drive before adjusting the trimpots If the trimpots must be adjusted with power applied use insulated tools and the appropriate personal protection equipment BE ALERT High voltages can cause serious or fatal injury The MM501U is factory calibrated
21. shbuttons to start and stop the motor pushbuttons are not included with the drive See Figure 4 page 10 for connections Connect a momentary operated normally closed STOP pushbutton to B2 and B3 Connect a momentary operated normally open START pushbutton to B2 and If the Start Stop pushbuttons not used jumper terminal B1 and B3 As an added safety feature the Start Stop pushbutton terminals B1 B2 and B3 are isolated from earth ground 12 Installation Tachogenerator Feedback Using tachogenerator feedback will improve speed regulation from approximately 196 of motor base speed to approximately 0 196 of motor base speed Use tachogenerators rated from 7 VDC per 1000 RPM to 50 VDC per 1000 RPM Connect the tachogenerator to terminals T1 and T2 of terminal block 502 TB502 See Figure 4 page 10 for tachogenerator feedback connections Voltage Signal Instead of using a speed adjust potentiometer the drive may be wired to follow a grounded or ungrounded 0 10 VDC signal Connect the signal input to S2 and the signal common to S1 see Figure 5 page 13 Make no connections to 3 NOTE Set SW505 to VOLTAGE SIGNAL if the drive is following a voltage signal Current Signal The MM501U can follow a 4 20 mA current signal Connections are the same as the voltage follower Connect the signal input to 1 and S2 see Figure 5 page 13 Make no connections to S3 NOTE Set SW503 to CURRENT SIGNAL when t
22. small screwdriver to press down on the lever arm Insert a wire stripped approximately 0 25 inches 6 mm into the opening in front of the terminal block Release the lever arm to clamp the wire Press down on the lever arm using a small screwdriver Insert wire into the wire clamp Release the lever arm to clamp the wire Figure 2 Cage Clamp Terminal Block 6 Installation Speed adjust potentiometer A Warning Be sure that the potentiometer tabs do not make contact with the potentiometer enclosure Grounding the input will cause damage to the drive Mount the speed adjust potentiometer through a 0 38 in 10 mm hole with the hardware provided Figure 3 Install the circular insulating disk between the panel and the 10K ohm speed adjust potentiometer Twist the speed adjust potentiometer wire to avoid picking up unwanted electrical noise If speed adjust potentiometer wires are longer than 18 in 457 mm use shielded cable Keep speed adjust potentiometer wires separate from power leads MOUNT THROUGH A 0 38 IN 10 MM HOLE NUT STAR WASHER SPEED ADJUST POTENTIOMETER INSULATING DISK POT TAB ASSIGNMENTS PANEL Figure 3 Speed Adjust Potentiometer Installation 7 Shielding guidelines A Warning Under no circumstances should power and logic leads be bundled together Induced voltage can cause unpredictable behavior in any electronic device in
23. t the current signal to minimum 2 Apply AC line voltage 3 Slowly advance the speed adjust potentiometer clockwise CW If a voltage or current signal is used slowly increase the voltage or current signal The motor slowly accelerates as the potentiometer is turned CW or the voltage or current signal is increased Continue until the desired speed is reached 4 Remove AC line voltage from the drive to coast the motor to a stop 16 Operation Diagnostic LEDs The MM501U is equipped with the following diagnostic LEDs POWER Lights whenever AC line voltage is applied to the drive CURRENT LIMIT CL Lights whenever the drive reaches current limit RUN Lights whenever the motor is rotating DIAGNOSTIC Figure 6 Diagnostic LED Locations Operation 17 Line starting and line stopping Line starting and line stopping applying and removing AC line voltage is recommended for infrequent starting and stopping of a drive only When AC line voltage is applied to the drive the motor accelerates to the speed set by the speed adjust potentiometer When AC line voltage is removed the motor coasts to a stop Start Stop Pushbuttons Start Stop pushbuttons allow you to accelerate the motor to set Speed and to decelerate the motor to a stop See Figure 4 page 10 for connection information Dynamic Braking Dynamic braking may be used to rapidly stop a motor Figure 7 page 19 For the RUN BRAKE switch u
24. til the motor speed stabilizes Make sure motor is not undersized for load adjust CURRENT LIMIT trimpot CW Replacement Parts Troubleshooting 39 Replacement parts are available form Minarik Corporation and its distributors for this drive series Table 3 Replacement Parts Model No MM501U Symbol D501 502 D503 504 1 505 IC506 R501 SCR501 505 T501 FU501 502 FU503 Description 3A 800V Diode 1 5A 600V PIV Diode 150122 IC 4N35 Opto Coupler 002 OHM 13W Resistor 800V 65A SCR 3FD 436 Transformer 40A Fuse 3A Fast Acting Fuse Heat Sink 10 Kohm Potentiometer Kit Minarik P N 071 0003 071 0012 060 0106 060 0101 032 0133 072 0059 230 0072 050 0060 050 0021 223 0294 202 0003 40 NOTES Unconditional Warranty A Warranty Minarik Corporation referred to as the Corporation warrants that its products will be free from defects in workmanship and material for twelve 12 months or 3 000 hours whichever comes first from date of manufacture thereof Within this warranty period the Corporation will repair or replace at its sole discretion such products that are returned to Minarik Corporation 901 East Thompson Avenue Glendale CA 91201 2011 USA This warranty applies only to standard catalog products and does not apply to Specials Any returns for special controls will be evaluated on a case by case basis The Corporation is not responsible for removal installation or any other
25. tiometers that can be mounted at two separate operating stations SPEED 1 Figure 14 Independent Adjustable Speeds Application Notes 33 Reversing To reverse motor direction use a dynamic brake and a three pole three position switch rated for at least the maximum DC armature voltage and maximum braking current See Figure 15 for connections Wait for the motor to stop completely before switching it to either the forward or reverse direction See the Dynamic Braking section on page 17 for sizing the dynamic brake resistor MM501U DYNAMIC BRAKE RESISTOR Figure 15 Reversing Circuit 34 Application Notes Reversing with a DLC600 controller A DLC600 controller can be used in a reversing application The DLC600 must be inhibited while braking Without the inhibit feature the DLC600 will continue to regulate This will cause overshoot when the DLC600 is switched back to the drive Figure 16 show the connection of the reversing circuit to an MM501U drive and a DLC600 Note Only one DLC option Optical Encoder or Magnetic Pickup may be used simultaneously MINARIK DRIVE A1 A2 3 2 1 Dynamic Brake Resistor Common Optical 1 52 p DLC600 Inhibit Leads Magnetic Pickup Figure 16 Independent Forward and Reverse Speeds 35 Troubleshooting A War
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