User`s Manual - Minarik Drives
Contents
1. 10K OHMS RUN DECEL SWITCH Figure 7 Run Decelerate to Zero Speed Switch 16 Operation Coast to minimum speed using INHIBIT terminals Short the INHIBIT H1 and H2 A2 terminals of terminal board SO501 to coast the motor to minimum speed Figure 8 Reopen the INHIBIT 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 than 18 inches 46 cm If shielded cable is used ground only one end of the shield to earth ground Do not ground both ends of the shield S0501 H2 INHIBIT SWITCH CLOSE TO INHIBIT OPEN TO RUN Figure 8 Run Decelerate to Minimum Speed Switch Operation 17 Dynamic braking Wait for the motor to completely stop before switching it back to RUN This will prevent high armature currents from damaging the 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 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 double throw switch rated for at least the maximum DC armature voltage and maximum braking current Table 1 Recommended Dynamic Brake Resistor Sizes Motor Minimum Minimum Armature Dy2. Automation Inari amp Control MM 30000 Series Model MM31640A SCR Adjustable Speed Drives for DC Brush Motors GE Un D Ri Uu Ea CU Do Copyright 2001 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 Printed in the United States of America Safety Warnings A X X amp ZARD 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 a 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 Reduc
3. 30 Application Notes RUN JOG switch Using a RUN JOG switch is recommended in applications where quick stopping is not needed and frequent jogging is required Use a single pole two position 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 decelerates to minimum speed Press the JOG pushbutton to jog the motor Return the RUN JOG switch to RUN for normal operation 3 SPEED ADJUST POTENTIOMETER S2 10K ohm S1 RUN JOG JOG PUSHBUTTON Figure 17 RUN JOG Switch Connection to Speed Adjust Potentiometer Application Notes 31 Leader follower application In this application use a PCM4 to monitor the speed of the leader motor Figure 18 The PCM4 isolates 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 An optional ratio potentiometer may be used to scale the PCM4 output voltage Lead Al le Eyes 92 52 Foll eader us ollower a 8 PCM4 o R drive drive A2 1 70 TB502 10K ohm optional TB501 Figure 18 Leader Follower Application 32 Application Notes Single speed potentio
4. as shown in Figure 6 page 12 Motor connections Minarik drives supply motor voltage from Al and A2 terminals It is assumed throughout this manual that when Al 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 Al and A2 with each other Connect a DC motor to SO501 terminals Al 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 Power connections 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 115 VAC MOTOR LINE VOLTAGE Figure 4 Power and Motor Connections Installation 11 Signal and optional switch connections Speed adjust potentiometer Connect 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 H1 and H2 A2 terminals of SO501 Figure 5 Close the switch to coast the motor to minimum speed open the switch to accelerate to set speed 0501 H2 HEARE INHIBIT SWITCH SPEED ADJUST POTENTIOMETER 10K OHMS Figure 5 Signal and Optional Switch Connections 12 Installation Voltage
5. Specifications Max Max Max Input Input Armature Voltage Current Current Max Model AC Amps AC Amps DC HP 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 to S2 100K ohms Vibration 0 5G max 0 50 Hz 0 1G max gt 50 Hz Ambient Temp Range 10 C 55 C Weight 0 5 Ib Dimensions 4 30 109 Pe 3 79 96 3 58 91 2 49 63 1 38 33 0 96 24 SCR501 SCRS02 Woven2 T5014 902 ei C504 ines Bleciric Co Dooooooan QODWDOGDOO Figure 1 Dimensions de 0 19 5 TYP Installation Mounting A Warning Do not install rewire or remove this control with power applied Doing so may cause fire or serious injury Make sure you have read and understood the Safety Warnings before attempting installation 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 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
6. 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 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 Other drives from Minarik Corporation amp Control 901 East Thompson Avenue Glendale California 91201 2011 Tel 800 M
7. 0 series drive and a DLC600 MINARIK s3 DRIVE s2 DYNAMIC BRAKE RESISTOR FD DLC600 COMMON SIGNAL 5 VDC OPTICAL ENCODER MAGNETIC PICKUP NOTE ONLY ONE FEEDBACK SOURCE ENCODER OR MAG PICKUP MAY BE USED AT ANY ONE TIME Figure 13 Reversing with a DLC600 Application Notes 27 Independent Adjustable Speeds Connect two speed adjust potentiometers with a single 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 PARALLEL RESISTANCE MUST EQUAL 10K OHMS 20K OHMS SPEED 2 Figure 14 Independent Adjustable Speeds 28 Application Notes 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 15 shows a connection for fixed high and low speed adjust potentiometers Figure 15 Adjustable Fixed Speeds Using Potentiometers in Series Application Notes 29 Multiple fixed speeds Replace the speed adjust potentiometer 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 speeds Total Series Resistance 10K ohms Figure 16 Multiple Fixed Speeds
8. 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Dimensions eye Rode clas b N e c iS ders 2 Speed Adjust Potentiometer Installation 7 Quick Connect Terminal Plug 200 0008 8 Power and Motor Connections 2222222 een 10 Signal and Optional Switch Connections 11 Voltage Follower Connections 22 2222er 12 Run Decelerate to Zero Speed Switch 15 Run Decelerate to Minimum Speed Switch 16 Dynamic Brake Connection 00 00 eese 18 Calibration Trimpot Layout 0 0000000 20 Typical IR COMP and TORQUE Settings 24 Reversing Circuit Connection s sssaaa areenan ennn 25 Reversing with a DLC600 0 eee 26 Independent Adjustable Speeds 27 Adjustable Fixed Speeds Using Potentiometers in Series 28 Multiple Fixed Speeds 0c c ee eee eee 29 RUN JOG Switch Connection to Speed Adjust Potentiometer 30 Leader Follower Application nasasa an anru n unnn 31 Single Speed Potentiometer Control of Multiple Drives 32 Diagnostic LED Locations 2 222222 35 Tables Table 1 Table 2 Recommended Dynamic Brake Resistor Sizes 17 Replacement Parts 2 00 c eee nennen 39
9. 13 Drive startup and shutdown 0 00 00 en eee eee 13 To shut down the drive 0 0 cee ee eee 14 Reversing aside enden na been n da qund 14 Starting and Stopping Methods 22 22 ren seen 14 Line starting and stopping 22 222er een nn 15 Decelerating to minimum speed 2 2222 cananan 15 Coast to minimum speed using INHIBIT terminals 16 Dynamic braking cori be sane eee me ee atento E Bun 17 Calibration 19 Calibration proced te u a 21 MINIMUM SPEED MIN SPD sees 21 MAXIMUM SPEED MAX SPD 200s 22 REGULATION IR COMP IA 22 Contents TORQUE LIMIT TORQUE x bore eX REED 23 Application Notes 25 Reversing with dynamic braking 2 22 2222 een 25 Reversing with a DLC600 R S RE ST T RR TT T R R RE R TR d iE 26 Independent Adjustable Speeds nananana 27 Adjustable speeds using potentiometers in series 28 Multiple fixed speeds lese pe re noes EP ER qm 29 RUN JOG SWitCh oo Zn aie ee de e vete saree hU E E 30 Leader follower application llle 31 Single speed potentiometer control of multiple drives 32 Troubleshooting 33 Before troubleshooting leslie 33 Diagnostic BEDS Au P Z o pee atenta eas pu 34 POWER BWR sn a a RE RP dE 34 GURRENT LIMIT CE 25 259 x eye otk REUS Xy EE 34 Replacement Pars us esso aK N ZR coe miih ERR urn 39 Unconditional Warranty inside back cover Illustrations Figure
10. CW until the ammeter reads 120 of maximum motor armature current 7 Set the speed adjust potentiometer or reference signal to zero speed 8 Remove power from the drive 9 Remove the lock from the motor shaft 10 Remove the ammeter in series with the motor armature MM31640 SERIES 1 20 HORSEPOWER e m 90 VDC DUX CHI 0 56 AMP RATING IRCOMP TORQUE 1 15 HORSEPOWER O 1800 RPM 90 VDC je Cex 0 75 AMP RATING IRCOMP TORQUE 118 HORSEPOWER 1800 RPM PA svoe Ca 1 3 AMP RATING IRCOMP TORQUE Figure 11 Typical IR COMP and TORQUE Settings settings may vary by application 25 Application Notes Reversing with dynamic braking A dynamic brake may be used when reversing 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 switching it to either the forward or reverse direction H2 rl S bl E Dynamic Brake Resistor Q REV Figure 12 Reversing Circuit Connection 26 Application Notes 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 MM3000
11. EA 5 AMP 3AG FAST ACTING FUSE 050 0022 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 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
12. INARIK 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
13. TAB ASSIGNMENTS Figure 2 Speed Adjust Potentiometer Installation 8 Installation Quick connect terminal block The quick connect terminal block is composed of a header block and terminal plug The removable terminal plug Minarik part number 160 0098 connects to the header block as shown in Figure 3 To use the quick connect terminal 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 the large opening in front of the plug 4 Turn the terminal plug screw clockwise to clamp the wire 5 Repeat steps 2 4 for each terminal until all connections are made 6 Insert the plug into the header block until securely fastened Header Block Terminal Plug Figure 3 Quick Connect Terminal Plug Installation 9 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 The switch contacts should be rated at a minimum of 200 of motor nameplate current and 250 volts Connect the power input leads and DC motor to connector SO501 as shown in Figure 4 page 10 Connect the speed adjust potentiometer and inhibit switch if used as shown in Figure 5 page 11 Connect a voltage signal source if used
14. and L2 5 Connect motor to A1 and A2 1 Recalibrate MIN SPD page 21 and MAX SPD page 22 1 Recalibrate MIN SPD page 21 and MAX SPD page 22 1 Increase MAX SPD setting page 22 2 Increase IR COMP setting page 22 3 Check motor load Resize the motor or drive if necessary 38 Troubleshooting Motor pulsates or surges under load Possible Causes 1 IR COMP is set too high 2 Control is in current limit mode Suggested Solutions 1 Adjust the IR COMP setting slightly CCW until the motor speed stabilizes page 22 2 Check that motor is of sufficient horsepower and amperage Troubleshooting 39 Replacement Parts Replacement parts are available from Minarik Corporation and its distributors for this drive series Table 2 Replacement Parts Model No Symbol Description Minarik P N MM31640A C503 504 22 uF 25 VDC Capacitor 011 0046 D501 503 1N5406 Diode 071 0007 SCR501 502 S6008L3 High power 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 120 0009 1 EA 3 8 32 X 1 2 NUT 151 0007 1 EA 3 8IN INT TOOTH LOCK WSHR 152 0007 1 EA POT INSULATING WASHER 156 0022 1 5A FUSE KIT CONTENTS 050 0066 2 EA 1 AMP 3AG FAST ACTING FUSE 050 0042 2 EA 1 1 2 AMP 3AG FAST ACTING 050 0026 2 EA 3 AMP 3AG FAST ACTING FUSE 050 0021 2
15. e or 800 394 6334 fax 34 Troubleshooting Diagnostic LEDS MM31640A series drives have two diagnostic LEDs mounted on the printed circuit board see Figure 20 POWER PWR The green POWER LED lights when AC line voltage is applied to the drive It is extinguished when power is removed CURRENT LIMIT CL The red CURRENT LIMIT LED lights when the drive s DC current output to the motor exceeds the limit set by the TORQUE trimpot If this occurs one 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 may the TORQUE setting exceed 120 of maximum motor current 2 The load is too great for the motor and or drive You may need to reduce the load or install a motor or drive which has a greater current rating than the one currently in use 3 The motor or related mechanical linkages may be jammed Remove AC line voltage and carefully inspect the motor and load for incorrect alignment Minarik Electric Co C504 QO 1 H2 2 H1 TE MAX SPD TORQUE MIN SPD IR COMP PWI POWER LED CURRENT LIMIT LED Figure 20 Diagnostic LED Locations 35 36 Troubleshooting Line fuse blows Line fuse does not blow but the motor does not run Possible Causes 1 Line fuses are the wrong size 2 Motor cable or armature is shorted
16. e the chance of an electrical fire shock or explosion by proper grounding over current protection thermal protection and enclosure Follow sound maintenance procedures A 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 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 Dimensions Installation Mounting as Naeh Pe te 3 WIFING aat aur taa E aa Mee ie een En AAD RE EAr Epi prd te 4 Shielding guidelines 2 222 0000 e cece eee eee 5 Heat sinking ceca ee en Seo ite sc sce d gna 6 Eine TUSIDQ xe 21 tI xe ia K Rule euer nde ne ferente tut Lae ded 6 Speed adjust potentiometer connections s sssaaa n annen FS Quick connect terminal block 8 Conlectiong 22 4 coe co amena I LI HR Be Hd 9 Motor connections c sjer oeie a 200 een nennen nennen 9 Power connections 2220 02 eee ernennen en 10 Signal and optional switch connections 11 Operation 13 Before applying power asics seis eh Ee Y ipRX ORE XE XR
17. follower Instead of using a speed adjust potentiometer the drive may be wired to 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 used to scale the analog input voltage An interface device such as Minarik model PCM4 may be used to scale and isolate an analog input voltage 0501 H2 ISOLATED ANALOG SIGNAL Figure 6 Voltage Follower Connections 13 Operation A Warning Dangerous voltages exist on the drive when it is powered BE ALERT High voltages can cause serious or fatal injury Before applying power Verify that no conductive material is present on the printed circuit board Verify that the AC supply is properly balanced Drive startup and shutdown 1 Set the reference 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 increase the reference signal until the desired speed is reached 14 Operation To shut down the drive To decelerate the motor from set speed to a stop set the speed adjust potentiometer to zero speed To coast the motor from set speed to a stop remove AC line voltage from the drive or short SO501 terminals H1 and H2 Reversing Refer to Application Notes
18. ing the load on the motor rotate the IR COMP trimpot until the motor runs at the speed measured in step 2 Calibration 23 Approximate IR COMP calibration If the motor does not maintain set speed as the load changes gradually rotate the IR COMP trimpot CW 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 speed See Figure 11 page 24 for typical TORQUE and IR COMP settings TORQUE LIMIT TORQUE A Warning Although TORQUE LIMIT is set to 120 of maximum drive current rating continuous operation beyond that rating may damage the motor If you intend to operate beyond the rating contact your Minarik representative for assistance The TORQUE setting determines the maximum torque for accelerating and driving the motor TORQUE is factory set at 120 of maximum drive current You must recalibrate the TORQUE setting if using a lower current motor See Figure 11 page 24 for typical TORQUE and IR COMP settings 1 With no power applied to the drive connect a DC ammeter in series with the motor armature 2 Setthe TORQUE trimpot to full CCW 3 Carefully lock the motor armature Ensure that the motor is firmly mounted 4 Apply line power The motor should be stopped 24 Calibration 5 Set the speed potentiometer or reference signal to maximum speed The motor should remain stopped 6 Slowly rotate the TORQUE trimpot clockwise
19. meter control of multiple drives Multiple drives can be controlled 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 allowing independent control of each drive 6 2 ratio pot A optional A1 10K OHMS 8 CONE s2 Drive A Mi PCM4 P 7 1 1 A2 TB501 TB502 6 2 ratio pot B optional A1 10K OHMS M 8 S2 PCM4 Drive B m 7 1 1 A2 TB501 TB502 Figure 19 Single Speed Potentiometer Control of Multiple Drives 33 Troubleshooting A Warning 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 Disconnect AC line voltage from the drive Check the drive closely for damaged components Check that no conductive or other foreign material has become lodged on the printed circuit board Verify that every 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 additional assistance contact your local Minarik distributor or the factory direct 800 646 2745 phon
20. namic Brake Dynamic Brake Current Rating Resistor Value Resistor Wattage Less than 2 ADC 1 ohm 1W 2 3 ADC 5 ohm SW Operation 18 RESISTOR 9 g a BRAKE Figure 9 Dynamic Brake Connection 19 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 MM31640A drive has four user adjustable trimpots Each drive is factory calibrated to its maximum current rating Readjust the calibration trimpot settings to accommodate lower current rated motors See Figure 10 page 20 for trimpot location 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 20 Calibration MAXIMUM TORQUE SPEED LIMIT MAX SPD TORQUE MIN SPD MINIMUM REGULATION SPEED IR COMP Figure 10 Calibration Trimpot Layout Calibration 21 Calibration procedure Calibrate the drive using the following procedure 1 Set the MIN SPD and MAX SPD trimpots to zero full CCW 2 Set the TORQUE trimpot to maximum full CW 3 Set the IR COMP trimpot to midrange approximate 12 o clock position 4 Se
21. page 25 for reversing options or contact your Minarik sales representative Starting and Stopping Methods A Warning For frequent starts and stops use dynamic braking inhibit mode or decelerating to a stop shorting S2 to 1 Do not use any of these methods for emergency stopping They may not stop a drive that is malfunctioning Removing AC line power both L1 and L2 is the only acceptable method for emergency stopping Minarik strongly recommends 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 Operation 15 Line starting and stopping When AC line voltage is applied to the drive the motor accelerates to the set speed When AC line voltage is removed the motor coasts to a stop Line stopping removing AC line voltage is recommended for stopping in emergency situations only It is not recommended for frequent 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 set speed to a minimum speed determined by the MIN SPD trimpot setting If the MIN SPD trimpot is set full CCW the motor decelerates to zero speed when the switch between S1 and S2 is closed By opening the switch the motor accelerates to set speed Cw S3 rm SPEED 52 ADJUST POT L
22. s 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 6 Installation Heat sinking The MM31640A drives contain sufficient heat sinking in its basic configuration No 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 Fuse kit 050 0066 1 5A Fuse Kit is available from Minarik See Replacement Parts page 39 for fuse kit contents Installation 4 Speed adjust potentiometer connections 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 Install the circular insulating disk between the mounting panel and the 10K ohm speed adjust potentiometer see Figure 2 Mount the speed adjust potentiometer through a 0 38 inch 10 mm hole with the hardware provided Twist the speed adjust potentiometer wires to avoid picking up unwanted electrical noise MOUNT THROUGH A 0 38 IN 10 MM HOLE g MU SPEED ADJUST POTENTIOMETER INSULATING PANEL DISK POT
23. t the signal input analog 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 adjust potentiometer is turned full CCW It is factory set for zero speed To calibrate set the MIN SPD trimpot full CCW Set the speed adjust potentiometer or reference signal to minimum Adjust the MIN SPD trimpot until the desired minimum motor speed is reached 22 Calibration MAXIMUM SPEED MAX SPD The MAX SPD setting determines the motor speed when the speed adjust potentiometer is turned full CW It is factory set for maximum rated speed To calibrate set the MAX SPD trimpot full CCW Set the speed adjust potentiometer or reference voltage to maximum Adjust the MAX SPD trimpot until the desired maximum motor speed is reached REGULATION 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 To calibrate IR COMP exact calibration 1 Turn the IR COMP trimpot full CCW 2 Set 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 keep
24. to ground 3 Nuisance tripping caused by a combination of ambient conditions and high current spikes 1 Speed adjust potentiometer or reference signal is set to zero speed 2 Speed adjust potentiometer or reference signal connections are open Suggested Solutions 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 components decrease TORQUE settings or resize motor and drive for actual load demand or check for incorrectly aligned mechanical components or jams See page 23 for information on adjusting the TORQUE trimpot 1 Increase reference signal or speed adjust potentiometer setting 2 Check that the reference signal or speed adjust potentiometer connections are not open Line fuse does not blow but the motor does not run cont Motor runs too fast at maximum speed setting Motor runs too slow or too fast Motor will not reach the desired speed Possible Causes 3 Drive is overloaded 4 Drive is not receiving AC line voltage 5 Motor is not connected 1 MIN SPD and MAX SPD 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 Troubleshooting 37 Suggested Solutions 3 Verify that the motor is not jammed Increase TORQUE setting page 23 4 Apply AC line voltage to LI
25. 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 4 Installation 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 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 or the drive is disabled Opening any one motor lead may destroy the drive Use 18 24 AWG wire for speed adjust potentiometer S1 S2 S3 wiring Use 14 16 AWG wire for AC line L1 L2 and motor Al and A2 wiring Installation 5 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 including 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 device
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