User`s Manual - Minarik Drives
Contents
1. Automation amp Control MM20000 Series Model MM21035B SCR Adjustable Speed Drives for DC Brush Motors Copyright 2001 by Minarik Corporation rights reserved No part of this manual may be reproduced 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 2 X X 24 RD 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 Reduce the chance of an electrical fire shock2. Power lead connections Connect the AC line power leads to PCB terminals L1 and L2 or to a double throw single pole master power switch recommended Line fuse connections Wire an external line fuse between the stop switch if installed and the L1 terminal An additional line fuse should be installed on L2 if the input voltage is 230 VAC The line fuse s should be rated at 250 volts and 150 200 of maximum motor nameplate current Refer to the line fuse chart on page 6 for replacement line fuse sizes Installation 9 E 00 0 C Q 2 9 E 3 STOP xx yj wi SWITCH UN UP 115 VAC LINE VOLTAGE NORMALLY OPEN MAINTAINED CONTACT SWITCHES SEE NOTE NOTE YOU MAY ALSO USE ISOLATED TTL LOGIC SWITCHING IN PLACE OF UP DN SWITCHES Figure 2 Power Fuse and Motor Connections No Choke Capacitor Filter Installed 10 Installation S COM DN UP STOP SWITCH 115 VAC LINE VOLTAGE NORMALLY OPEN k MAINTAINED CONTACT SWITCHES SEE NOTE NOTE YOU MAY ALSO USE ISOLATED TTL LOGIC SWITCHING IN PLACE OF UP DN SWITCHES Figure 3 Power Fuse and Motor Connections Choke Capacitor Filter Installed 11 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 m
3. and A2 Motor runs too fast at maximum speed setting Motor runs too slow or too fast Motor will not reach the desired speed Motor pulsates or surges under load Possible Causes 1 MIN SPD and MAX SPD settings are too high 1 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 1 IR COMP is set too high 2 Control is in current limit mode Troubleshooting 25 Suggested Solutions 1 Recalibrate MIN SPD page 18 and MAX SPD page 19 1 Recalibrate MIN SPD page 18 and MAX SPD page 19 1 Increase MAX SPD setting page 19 2 Increase IR COMP setting page 20 3 Check motor load Resize the motor if necessary 1 Adjust the IR COMP setting slightly CCW until the motor speed stabilizes page 20 2 Check that motor is of sufficient horsepower and amperage 26 Troubleshooting Replacement Parts Replacement parts are available from Minarik Corporation and its distributors for this drive series Table 3 Replacement Parts Model No Symbol Description Minarik9 P N MM21035A C501 502 220 uF 35 VDC Capacitor 011 0027 D506 508 D8020L High power Diode 071 0039 SCR501 502 S8020L High power SCR 072 0043 R531 0 01 Ohm 5W Resistor 032 0065 T501 ST 3 3109 115VAC Transformer 230 0083 Chassis 222 0079 MM22035A Same as MM21011A except T501 DST 2 28 230 VAC Transformer 230 0061 FUSE KIT CONTE
4. CCW 2 Setthe TORQUE trimpot to maximum full CW 3 Setthe IR COMP and RATE trimpots to the 12 o clock position 4 Apply power to the drive 5 Calibrate the trimpots as follows MINIMUM SPEED MIN SPD The MIN SPD setting determines the motor speed when power is applied but neither the UP nor DOWN pushbutton is pressed It is factory set for zero speed To calibrate set the MIN SPD trimpot full CCW Apply power to the drive Adjust the MIN SPD trimpot until the desired minimum motor speed is reached Calibration 19 MAXIMUM SPEED MAX SPD The MAX SPD setting determines the maximum motor speed when either the UP or DOWN pushbutton is pressed and held It is factory set for maximum rated speed To calibrate set the MAX SPD trimpot full CCW Press and hold the UP or DOWN pushbutton Adjust the MAX SPD trimpot until the desired maximum motor speed is reached RATE The RATE setting determines the time the motor takes to ramp to a higher speed in either direction RATE is factory set for the fastest acceleration time full CCW To set the acceleration time 1 Apply power to the drive The motor should run at minimum speed 2 Press and hold the UP or DOWN pushbutton and measure the time it takes the motor to go from minimum to maximum speed 3 the time measured in step 2 is not the desired acceleration time turn the RATE trimpot CW for a slower acceleration time or CCW for a faster acceleration time Repea
5. 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 MINARIK phone or 800 394 6334 fax 24 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 to ground 3 Nuisance tripping caused by a combination of ambient conditions and high current spikes 1 UP DN pushbutton connections are open 2 Drive is overloaded 3 Drive is not receiving AC line voltage 4 Motor is not connected Suggested Solutions 1 Check that line fuses are 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 21 for information on adjusting the TORQUE trimpot 1 Check pushbutton connections 2 Verify that the motor is not jammed Increase TORQUE setting page 21 3 Apply AC line voltage to L1 and L2 4 Connect motor to Al
6. MIN SPD trimpot When AC line voltage is removed the motor coasts to a stop Operation 13 Dynamic braking A Warning 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 Dynamic braking may be used to rapidly stop a motor Figure 4 page 14 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 2 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 SW 3 5 ADC 10 ohm 10W 5 10 ADC 20 ohm 20W 14 Operation SEE NOTE A2 DYNAMIC BRAKE RESISTOR VM VM TERMINALS NOTE IF USING CHOKE CAPACITOR FILTER CONNECT MOTOR ARMATURE TO A1 AND A2 INSTEAD OF A1 AND A2 Figure 4 Dynamic Brake Connection Operation 15 INHIBIT mode A Warning Do not use inhibit mode for emergency stopping It may not stop a drive that is malfunctioning Removing AC line power both L1 and L2 is the only acceptable method for emergency stopping Short the VM and VM pins together to inhibit the motor which will coast to the speed set by the MIN SPD trimpot Removing the short causes the motor to accelerate to set speed An option is to connect a single pole single throw switch between t
7. 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 spade terminals 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 Six 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 subplate 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 wiring Use 14 16 AWG wire for AC line L1 L2 field F1 F2 and motor Al and A2 wiring Installation 5 Shielding guidelines A Warning Under no circumstances should power and lo
8. vices E eC HR OPERE RU ERR OUR E RENE adu 12 Starting and Stopping Methods 12 Line starting and stopping 12 Dynamic braking 2545 ex be EDY 13 INHIBIT 255261 08 25 a a te 15 Calibration 16 Calibration procedure x z 2 Turcas Rae 18 MINIMUM SPEED MIN SPD 18 MAXIMUM SPEED MAX SPD 19 RATE Su gne EE EN Vv ma 19 REGULATION COMP 20 TORQUE LIMIT TORQUE Shs 21 Application Notes 22 Reversing with dynamic braking 22 Troubleshooting 23 Before troubleshooting de 23 Replacement PARAS oia 26 Unconditional Warranty inside back cover Illustrations Figure T Dimensions edant 2 Figure 2 Power Fuse and Motor Connections No Choke Capacitor Filter Installed 9 Figure 3 Power Fuse and Motor Connections Choke Capacitor Filter Installed 10 Figure 4 Dynamic Brake Connection 14 Figure 5 Inhibit Terminals With Optional Switch Installation 15 Figure 6 Calibration Trimpot Layout 17 Figure 7 Reversing Cir
9. NTS 1 5A FUSE KIT 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 EA 5 AMP 3AG FAST ACTING FUSE 050 0022 5 15A FUSE KIT 050 0071 2 EA 5 AMP 3AG FAST ACTING FUSE 050 0022 2 EA 8 AMP 3AG FAST ACTING 050 0059 2 EA 10 AMP 3AG FAST ACTING FUSE 050 0024 2 EA 15 AMP 3AG FAST ACTING FUSE 050 0018 Notes 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 perso
10. 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 Automation amp Control 901 East Thompson Avenue Glendale California 91201 2011 Tel 800 MINARIK Fax 800 394 6334 www minarikcorp com Document Number 250 0105 Revision 4 Printed in the U S A 6 01 12 00 North America 13 00 Outside North America
11. arik Corporation offers two fuse kits part number 050 0066 1 5A Fuse Kit and 050 0071 5 15A Fuse Kit See Replacement Parts page 23 for fuse kit contents Installation 7 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 external line fuse s and DC motor to the drives printed circuit board as shown in Figure 2 page 9 if no choke capacitor filter is installed Connect the drive as shown in Figure 3 page 10 when using a choke capacitor filter Motor connections Minarik drives supply motor voltage from A1 and A2 terminals It is assumed throughout this manual that when A1 is positive with respect to 2 the motor will rotate clockwise 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 8 Installation Connect a DC motor to PCB terminals A1 and A2 as shown in Figure 2 If using a choke capacitor filter connect the motor to PCB terminals A1 and A2 as shown in Figure 3 page 10 Ensure that the motor voltage rating is consistent with the drive s output voltage
12. aterial is present on the printed circuit board Verify that the AC supply is properly balanced Startup and shutdown 1 Apply AC line voltage Press and hold the UP or DOWN pushbutton The motor will accelerate in the desired direction at a rate controlled by the RATE trimpot 3 Release the UP or DOWN pushbutton The motor will decelerate to zero or minimum speed at a rate controlled by the RATE trimpot To shut down the drive Remove AC line voltage from the drive 12 Operation Reversing Refer to Application Notes page 22 for reversing options or contact your Minarik sales representative Starting and Stopping Methods A Warning For frequent starts and stops use inhibit mode shorting to VM or dynamic braking 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 NOTE Minarik strongly recommends the installation of an emergency stop switch The switch contacts should be rated at a minimum of 250 volts and 200 of maximum motor current Line starting and stopping Line starting and stopping applying and removing AC line voltage is recommended for starting and stopping in emergency situations only It is not recommended for frequent starting and stopping When AC line voltage is applied to the drive the motor accelerates to minimum speed set by the
13. cuit Connection 22 Tables Table 1 Recommended Line Fuse Chart 6 Table 2 Recommended Dynamic Brake Resistor Sizes 13 Table 3 Replacement Parts 26 Notes Specifications AC Max AC Max DC Line Input Armature HP Model Voltage Current Current Range Style 210358 115 8 5 1 8 1 2 Chassis AC Line Voltage Tolerance 5 10 50 60 Hz single phase Armature Voltage Range 0 90 VDC Accel Time Range 0 5 11 seconds Decel Time Range coast to a stop 13 seconds Input Impedance S1 to S2 100K ohms Load Regulation 1 base speed or better Vibration 0 5G max 0 50 Hz 0 1G max gt 50 Hz Ambient Temp Range 10 C 55 C Weight 0 5 Ib 2 Dimensions 4 30 109 3 79 96 3 58 91 2 49 63 1 55 39 0 96 24 GO XC Q Minarik Corporation D 2008 C TNH Figure 1 Dimensions Installation Drive 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 on page 1 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
14. ed 4 Apply line power The motor should be stopped 5 Press and hold the UP or DOWN pushbutton The motor should remain stopped 6 While holding the pushbutton slowly rotate the TORQUE trimpot clockwise CW until the ammeter reads 120 of maximum motor armature current Release the pushbutton Remove power from the drive Remove the lock from the motor shaft 0 Remove the ammeter in series with the motor armature Se 22 Application Notes Reversing with dynamic braking Always use dynamic braking when reversing the motor direction Figure 7 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 Refer to Dynamic Braking page 13 for more information on dynamic brake resistor sizes FWD BRAKE Resistor NOTE IF USING A CHOKE CAPACITOR FILTER CONNECT MOTOR LEADS TO A1 AND A2 Figure 7 Reversing Circuit Connection 23 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 e Disconnect AC line voltage from the drive Check the drive closely for damaged components
15. gic 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 Tf 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 6 Installation Heat sinking MM21035B series drives contain sufficient heat sinking in their basic configurations No additional heat sinking is necessary Line fusing Minarik drives require an external fuse for protection Use fast acting fuses rated for 250 VAC or higher and approximately 150 of the maximum armature current Table 1 lists the recommended line fuse sizes Table 1 Recommended Line Fuse Sizes 90 VDC Motor DC Armature AC Line Fuse Horsepower Current amps Size amps 1 8 1 3 3 1 6 1 7 3 1 4 2 5 5 1 3 3 5 8 1 2 5 0 10 Min
16. he inhibit pins Close the switch to inhibit the drive open the switch to accelerate to set speed See Figure 5 for inhibit mode switch connections D i i VM Corporation 0 41 44 80501 INH RUN VM VM COAST TO STOP TERMINALS Figure 5 Inhibit Terminals With Optional Switch Installation 16 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 MM21035B Series drives have five 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 6 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 Calibration 17 REGULATION MINIMUM IR COMP SPEED MOV501 TORQUE C501 TORQUE ACCELERATION MAXIMUM LIMIT DECELERATION SPEED RATE Figure 6 Calibration Trimpot Layout 18 Calibration Calibration procedure Calibrate the drive using the following procedure 1 Setthe MIN SPD and MAX SPD trimpots to minimum full
17. n 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 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
18. 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 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 Installation Drive mountlng raro ia PE SER TUS Eu EE 3 4 Shielding guidelines et RE Rer REN ER 5 Heat sinkirig 6 i eU OM E d To 6 Connections ica apa 7 Motor connections 0034506 oo VEDI AT 7 Power lead connections 8 Line fuse connections 8 Operation 11 Before applying power 11 Startup and shutdoWh 2 eter Ere ett ERR oe 11 To shut down the drive sida er x hieme sd i Rose XR A 11
19. t steps 1 through 3 until the acceleration time is correct 20 Calibration 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 1 Turn the IR COMP trimpot full CCW 2 Press and hold the UP or DOWN button 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 until the motor runs at the speed measured in step 2 Calibration 21 TORQUE LIMIT TORQUE A Warning Although TORQUE LIMIT is set to 120 of motor nameplate 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 1 With no power applied to the drive connect a DC ammeter in series with the motor armature 2 Set the CURRENT LIMIT trimpot to full CCW 3 Carefully lock the motor armature Ensure that the motor is firmly mount
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