LGM Series - American Control Electronics
Contents
1. LGM Series Section 7 Diagnostic LEDs LGM series drives are equipped with four diagnostic LEDs Current Limit C LIM Red LED lights whenever the drive reaches current limit Inhibit INH Red LED lights whenever the inhibit circuit is active Power PWR Green LED lights whenever AC line voltage is applied to the drive Run RUN Green LED lights whenever the Run Stop switch is set to Run sn T Ps06 200 ngos 505 E 2 PS SS INH Power LED Figure 20 Diagnostic LED Locations LGM Series Section 8 Troubleshooting 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 selection settings are correctly set Check that the drive s rated armature and field outputs are consist2. e 969596969 e T2 1 28 33 0 97 25 000000 I I 3 80 97 4 30 109 ALL DIMENSIONS IN INCHES MILLIMETERS Figure 1 LGM Series Dimensions LGM Series 6 90 175 6 30 160 5 90 150 gt 0 7 18 112 1 75 4 3 00 76 _ _ _ 3901100 F 26 1 00 8 0 125 ALL DIMENSIONS INCHES MILLIMETERS Figure 2 5 0001 Dimensions LGM Series Section 3 Installlation applied Failure to heed this warning may result in fire explosion or serious injury Make sure you read and understand the Safety Precautions on page i before attempting to install this product 0 Do not install rewire or remove this control with input power Mounting e Drive components are sensitive to electrostatic discharge Avoid direct contact with the circuit board Hold the drive by the chassis or heat sink only Protect the drive from dirt moisture and accidental contact Provide suffic
3. Remove power Reverse connections to A1 and A2 Reapply power Increase TORQUE LIMIT setting See page 26 Check motor load Resize the motor and drive if necessary Adjust the IR COMP setting slightly CCW until the motor speed stabilizes See page 25 Make sure motor is not undersized for load adjust TORQUE LIMIT trim pot CW See page 26 MIN OUT is set too high Motor connections to A1 and A2 are reversed Motor field connections are loose shunt wound motors Motor bouncing in and out of current limit LGM Series PROBLEM Motor does not stop when the x speed adjust i potentiometer is full CCW Motor runs in i the opposite direction Motor runs too Motor will i not reach the desired speed Motor pulsates i or surges under load LINDYID 184881 8 lt SaaS N91 Tz 84814 DONE OCA S 3 3 9 0 OCGA 04 HOISIS3H WHO 900 HO WHO 100 1 x x 583 350848 02345 NIN 80333 3univwav Alddns aas 03345 1Snrav 03348 WH
4. the wiper to S2 and the clockwise end to 53 If the potentiometer works inversely of the desired functionality e g to increase motor speed you must turn the potentiometer counterclockwise power off the drive and swap the S1 and 53 connections Set SW501 to VOLT Refer to Figure 5 on page 14 Run Stop Switch See page 23 for a detailed explanation of the Run Stop switch See page 14 for a wiring diagram If no Run Stop switch is desired a jumper must be placed between terminals 1 and 2 factory preinstalled LGM Series TB501 LOCATED TOP LOGIC BOARD 5152 53 1 2 3 4 5 6 10K OHM 11 RUN STOP INHIBIT SWITCH SPEED ADJUST 1 POTENTIOMETER SWITCH see 12 for options close to run SIGNAL CONNECTIONS ON TOP LOGIC BOARD NOTE DO NOT make any connections to 1 and F2 if using a permanent magnet motor L1 A1 F1 F2 A2 12 MOTOR FIELD shunt wound motors only For 115 VAC input Connect to L1 for 50 Volt Field Connect to F2 for 100 Volt Field For 230 VAC input 115 VAC ARMATURE Connect to L1 for 100 Volt Field or Connect to F2 for 200 Volt Field 230 VAC A agal INPUT STOP SWITCH MOTOR AND POWER CONNECTIONS ON BOTTOM POWER CIRCUIT BOARD Figure 5 Drive Connections LGM Series Analog Input Signal Instead of using a speed adjust potentiometer the drive m
5. disk between the panel and the 10K ohm speed adjust potentiometer Twist the speed adjust potentiometer wires to avoid picking up unwanted electrical noise If the speed adjust potentiometer wires are longer than 18 in 46 cm use shielded cable Keep the speed adjust potentiometer wires separate from power leads L1 L2 A1 A2 F1 F2 naanaaagRaununmumunnmninmanddB OOCR WODDER POOEQOUOEOER logoooolmoono POT TAB ASSIGNMENTS POOE Figure 3 Speed Adjust Potentiometer LGM Series Do not install rewire or remove this control with input 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 or the drive is disabled Opening any one motor lead while the drive is running may destroy the drive Use 18 24 AWG wire for logic wiring Use 14 16 AWG wire for AC line and motor wiring Shielding Guidelines Under no circumstances should power and logic level leads be bundled together Induced voltage can cause unpredictable behavior in any electronic device including motor controls As a general rule AMERICAN CONTROL ELECTRONICS recommends shielding of al
6. 3 3 LGM103 10 LGM303 3 and LGM303 10 Starting and Stopping Methods Line Starting and Stopping Dynamic Braking Inhibit Circuit Run Stop Switch Section 5 Calibration Minimum Speed MIN OUT Maximum Speed MAX SPD Torque TORQUE LIMIT IR Compensation IR COMP Acceleration ACCEL Deceleration DECEL Section 6 Application Notes Multiple Fixed Speeds LGM Series Adjustable 506605 using Potentiometers in Series Independent Adjustable Speeds RUN JOG Switch Inhibit Connection RUN JOG Switch Potentiometer Connection Leader Follower Application Single Speed Potentiometer Control Of Multiple Drives Reversing Reversing with CLD100 1 Controller Section 7 Diagnostic LEDs Section 8 Troubleshooting Before Troubleshooting Section 9 Block Diagrams Section 10 Accessories amp Replacement Parts LGM Series List of Tables Table 1 Recommended Line Fuse Sizes Table 2 Field Output Connections 555 Table 3 Minimum Recommended Dynamic Brake Resistor Values List of Figures Figure 1 LGM Series Dimensions Figure 2 HSK 0001 Dimensions Figure 3 Speed Adjust Potentiometer Figure 4 Quick Disconnect Terminal Block Figure 5 Drive Connections Figure 6 Analog Input Signal Connections Figure 7 Select Switches Figure 8 Dynamic Brake Wiring with Normally Open Inhibit Figure 9A Inhibit Terminals Normally Closed Figure 9B Inhibit Terminals Normally Open Figure 10 Recommended TORQUE LIMIT an
7. AMERICAN CONTROL ELECTRONICS LGM Series USER MANUAL LGM103 3 LGM103 10 LGM303 3 LGM303 10 www americancontrolelectronics com Dear Valued Congratulations on your purchase of the LGM Series drive This User Manual was created for you to get the most out of your new device and assist with the initial setup Please visit www americancontrolelectronics com to learn more about our other drives Thank you for choosing American Control Electronics 2012 American Control Electronics All rights reserved No part of this manual may be reproduced or transmitted in any form without written permission from American Control Electronics The information and technical data in this document subject to change without notice American Control Electronics 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 American Control Electronics 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 LGM Series Safety First SAFETY WARNINGS Text in gray boxes denote important safety tips warnings Please read these instructions carefully before performing any of the procedures contained in this manual DO NOT INSTALL REMOVE OR REWIRE
8. O Section 9 Block Diagrams les LGM Ser LGM Series Section 10 Accessories amp Replacement Parts CLD100 1 OLD100 1 HSK 0001 0001 KTP 0004 KTF 0001 KTF 0002 KTF 0003 KTF 0004 KTF 0005 KTF 0006 Displays Closed Loop Open Loop Heat sinks Chassis Kits Potentiometer amp Connector 10K Pot Insulating 6 Pin Terminal Block included with drive Fuse 2 1 5 Amp 250 V 3AG Fast blow Glass Fuses 2 3 Amp 250 V 3AG Fast blow Glass Fuses 2 5 Amp 250 V 3AG Fast blow Glass Fuses 2 8 Amp 250 V 3AG Fast blow Glass Fuses 2 10 Amp 250 V 3AB Normal blow Ceramic Fuses 2 15 Amp 250 V 3AB Normal blow Ceramic Fuses Logic Cards Current Monitoring LGM Series LGM Series LGM Series LGM Series LGM Series Unconditional Warranty A Warranty American Control Electronics referred to as the Corporation warrants that its products will be free from defects in workmanship and material for twelve 12 months or 3000 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 American Control Electronics 14300 De La Tour Drive South Beloit Illinois 61080 USA This warranty applies only to standard catalog products and does not apply to specials Any returns of spe
9. T 7 X 77S Signal Select 5 501 P501 MAX SPD 1502 501 RUN _INH 2 2 2 0 Figure 7 Select Switches LGM Series Startup LGM103 3 LGM103 10 LGM303 3 and LGM303 10 Turn the speed adjust potentiometer full counterclockwise CCW or set the input voltage or current signal to minimum Apply AC line voltage Slowly advance the speed adjust potentiometer clockwise CW increase the input voltage or current signal The motor slowly accelerates as the potentiometer is turned CW or as the input voltage or current signal is increased Continue until the desired speed is reached Remove AC line voltage from the drive to coast the motor to a stop LGM Series Starting and Stopping Methods speed is recommended for freguent starts and stops Do not use any of these methods for stopping They may not stop a drive that is malfunctioning Removing AC line power both lines is the only acceptable method for emergency stopping 0 Dynamic braking coasting to a stop or decelerating to minimum this reason ACE strongly recommends installing an emergency stop switch on both AC line inputs see Figure 5 on page 14 Frequent starting and stopping can produce high torque This may cause damage to motors especially gearmotors that are not properly sized for the application Automatic Restart Upon Power Restoration All driv
10. 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 shock or explosion by using proper grounding techniques over current protection thermal protection and enclosure Follow sound maintenance procedures strongly recommends the installation of a master switch in the main power input to stop the drive in an emergency It is possible for a drive to run at full speed as a result of a AN component failure AMERICAN CONTROL ELECTRONICS ACE 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 trim pots Use approved personal protection equipment and insulated tools if working on this drive with power applied LGM Series Table of Contents Section 1 Specifications Section 2 Dimensions Section 3 Installation Mounting Heat Sinking Speed Adjust Potentiometer Shielding Guidelines Line Fusing Connections Section 4 Operation Before Applying Power Select Switches Signal Select SW501 Startup LGM10
11. ay be wired to follow an analog input voltage or current signal that is either isolated or non isolated from earth ground Connect the signal common to S1 Connect the signal input to S2 Refer to Figure 6 Refer to Figure 7 on page 17 for switch SW501 settings and location An analog input voltage range of 0 5 VDC 0 10 VDC or 4 20 mA is required to produce an armature voltage range of 0 90 VDC with 115 VAC line voltage or 0 180 VDC with 230 VAC line voltage P501 MAX SPD i502 501 TA RUN INH Figure 6 Analog Input Signal Connections LGM Series Section 4 Operation 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 WARNING 5 3 this drive If the motor or drive does not perform as described disconnect the AC line voltage immediately Refer to the Troubleshooting section page 40 for further assistance Before Applying Power 1 Verify that no foreign conductive material is present on the printed circuit board Ensure that all switches are properly set LGM Series Select Switches Signal Select SW501 Set the signal select switch SW501 to either CURR to use a current input signal or VOLT to use a voltage input signal or potentiometer See Figure 7 1 S2 S 251 77 z
12. cial 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 expressed 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 expressed or implied and particularly of any other claim or breach of warranty contained in Paragraph A or of any other warranties expressed 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 expenses 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 rep
13. d IR COMP Settings Figure 11 Multiple Fixed Speeds Figure 12 Adjustable Speeds Using Potentiometers In Series Figure 13 Independent Adjustable Speeds 4 RUN JOG Switch Connection to Inhibit Normally Open Inhibit Figure RUN JOG Switch Connection to Speed Adjust Potentiometer Figure Leader Follower Application Figure Single Speed Potentiometer Control of Multiple Drives Figure Reversing Circuit Wiring Normally Open Inhibit Figure Reversing with a CLD100 1 Figure 20 Diagnostic LED Locations Figure 21 LGM Series Block Diagram Figure LGM Series Section 1 Specifications AC Line Armature Maximum Voltage Voltage Range Armature Horsepower Current ADC Range LGM103 3 1 50 1 4 LGM303 3 1 25 1 2 LGM103 10 LGM303 10 Heat sink kit part number HSK 0001 must be used when the continuous current output is over 5 amps AC Line Voltage 115 or 230 VAC 10 50 60 Hz single phase Field Voltage with 115 VAC Line Voltage 50 VDC F1 to L1 100 VDC F1 to F2 with 230 VAC Line Voltage 100 VDC F1 to L1 200 VDC F1 to F2 Deceleration Time coast to a stop 10 sec Analog Input Range Signal may be isolated or non isolated S1 to S2 Voltage Signal Range 0 5 0 10 VDC Current Signal Range 0 5G maximum 0 50 Hz 0 1G maximum 50 Hz Safety Certifications UL cUL Listed Equipment File E132235 Ambient Temperature Range LGM Series Section 2 Dimensions 0 19 5
14. d run at minimum speed Set the speed adjust potentiometer or input voltage or current signal for maximum speed Measure the time it takes the motor to go from minimum to maximum speed If the time measured in step 2 is not the desired acceleration time turn the ACCEL trim pot CW for a longer acceleration time or CCW for a shorter acceleration time Repeat steps 1 through 2 until the acceleration time is correct Deceleration DECEL The DECEL setting determines the time the motor takes to ramp to a lower speed See Specifications on page 1 for approximate deceleration times DECEL is factory set for the shortest deceleration time full CCW To set the deceleration time 1 Set the speed adjust potentiometer or input voltage or current signal for maximum speed The motor should run at maximum speed Set the speed adjust potentiometer or input voltage or current signal for minimum speed Measure the time it takes the motor to go from maximum to minimum speed If the time measured in step 2 is not the desired deceleration time turn the DECEL trim pot CW for a longer deceleration time or CCW for a shorter deceleration time Repeat steps 1 through 2 until the deceleration time is correct LGM Series Section 6 Application Notes Multiple Fixed Speeds Replace the speed adjust potentiometer with a series of resistors with a total series resistance of 10K ohms Figure 11 Add a single pole multi position switch with the corr
15. d the motor See Figure 10 on page 28 for recommended IR COMP settings LGM103 10 TORQUE LIMIT HP 1 VOLTS 90 VDC D AMPS 10 0 ADC HP 12 MOTOR IR COMP VOLTS 90 VDC AMPS 5 00 ADC HP 1 8 VOLTS 90 VDC WAN AMPS 1 25 ADC LGM303 10 TORQUE LIMIT MOTOR IR COMP HP 2 VOLTS 180 VDC AMPS 10 0 ADC HP 1 VOLTS 180 VDC AMPS 5 00 ADC HP 1 4 VOLTS 180 VDC AMPS 1 25 ADC LGM Series LGM103 3 TORQUE COMP LIMIT HP 1 4 VOLTS 90 AMPS 2 50 MOTOR HP VOLTS AMPS VOLTS 90 VDC AMPS 0 20 ADC HP 1 50 LGM303 3 TORQUE IR COMP LIMIT MOTOR HP 1 2 VOLTS 180 VDC AMPS 2 50 ADC HP VOLTS AMPS HP 1 25 VOLTS 180 VDC AMPS 0 20ADC Figure 10 Recommended TORQUE LIMIT and IR COMP Settings actual settings may vary with each application LGM Series Acceleration ACCEL The ACCEL setting determines the time the motor takes to ramp toa higher speed See Specifications on page 1 for approximate acceleration times ACCEL is factory set for the shortest acceleration time full CCW To set the acceleration time 1 Set the speed adjust potentiometer or input voltage or current signal for minimum speed The motor shoul
16. ect number of positions for the desired number of fixed speeds TOTAL SERIES RESISTANCE 10K OHMS Figure 11 Multiple Fixed Speeds LGM Series Adjustable Speeds Using Potentiometers In Series Replace the speed adjust potentiometer with series of potentiometers 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 CW 5K OHM Figure 12 Adjustable Speeds Using Potentiometers In Series LGM Series Independent Adjustable Speeds Replace the speed adjust potentiometer with a single pole multi position switch and two or more potentiometers in parallel with a total parallel resistance of 10K ohms Figure 13 shows the connection of two independent speed adjust potentiometers that can be mounted at two separate operating stations O SPEED 1 Figure 13 Independent Adjustable Speeds LGM Series RUN JOG Switch Inhibit Connection 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 normally closed momentary pushbutton for the JOG pushbutton Connect the RUN JOG switch and JOG pushbutton to the inhibit plug as shown in Figure 14 The motor coasts to a stop when the RUN JOG switch is set to JOG Press the JOG pushbutton to jog the motor Retur
17. enough to stop the motor without demagnetization Replace the dynamic brake with 12 gauge wire 63 Figure 8 Dynamic Brake Wiring with Normally Open Inhibit See page 22 for Inhibit Wiring LGM Series Inhibit Circuit Connect an inhibit switch as shown in Figure 9A or 9B Activating the inhibit circuit causes the motor to coast to a stop Deactivating the inhibit circuit accelerates the motor to set speed at a rate controlled by the ACCEL trim pot 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 TB501 LOCATED ON LOGIC BOARD TB501 LOCATED ON TOP LOGIC BOARD 51 S2 53 1 2 3 4 5 51 52 53 1 2 3 4 5 eed SSsssssss 555956 L L L L L L L OPEN TO CLOSE TO INHIBIT INHIBIT Figure 9A Inhibit Terminals Figure 9B Inhibit Terminals Normally Closed Normally Open LGM Series Run Stop Switch The Run Stop switch may be used to decelerate a motor to a minimum speed Opening the Run Stop switch decelerates the motor from set speed to a minimum speed determined by the MIN SPD trim pot setting If the MIN SPD trim pot is set full CCW the motor decelerates to zero speed when the Run Stop sw
18. ent with the motor ratings For additional assistance contact your local AMERICAN CONTROL ELECTRONICS distributor or the factory direct 1 815 624 6915 or FAX 1 815 624 6965 LGM Series SUGGESTED SOLUTIONS 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 TORQUE LIMIT settings resize motor and drive for actual load demand or check for incorrectly aligned mechanical components or jams See page 26 for information on adjusting the TORQUE LIMIT trim pot Increase the speed adjust potentiometer setting or input voltage or current signal Deactive the inhibit or close the Run Stop switch Verify that the motor is not jammed Increase TORQUE LIMIT setting if set too low See Remove power Connect the motor to A1 and A2 Reapply Motor cable or armature is shorted to ground Nuisance tripping caused by a combination of ambient conditions and high current spikes i e reversing Speed adjust potentiometer or input voltage or current signal is set to zero speed INHIBIT mode is active or the Run Stop switch is open Drive is not receiving AC line voltage Motor is not connected PROBLEM Line fuse blows Line fuse does not blow but the motor does i not run SUGGESTED SOLUTIONS Calibrate MIN OUT See page 25
19. es automatically run to set speed when power is applied if the inhibit is not active and the Run Stop switch is closed Line Starting and Stopping Line starting and stopping applying and removing AC line voltage is recommended for infrequent starting and stopping of a drive only When ACline voltage is applied to the drive the motor accelerates to the speed set by the speed adjust potentiometer or analog signal When AC line voltage is removed the motor coasts to a stop LGM Series Dynamic Braking Wait the motor to completely stop before switching 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 8 on page 21 For the RUN BRAKE switch use a two pole two position switch rated for at least the armature voltage rating and 150 of the armature current rating For the dynamic brake resistor use a 40 watt minimum high power wirewound resistor Sizing the dynamic brake resistor depends on load inertia motor voltage and braking time Use a lower value higher wattage dynamic brake resistor to stop a motor more rapidly Refer to Table 3 on page 21 for recommended dynamic brake resistor sizes LGM Series 3 Minimum Recommended Dynamic Brake Resistor Values 15 ohms 30 ohms For motors rated 1 17 horsepower and lower a brake resistor is not necessary since the armature resistance is high
20. ient room for access to the terminals and calibration trim pots 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 the drive with its board in either a horizontal or vertical plane Eight 0 19 5 mm wide slots in the chassis accept 88 pan head screws Fasten either the large base or the narrow flange of the chassis to the subplate The chassis should be earth grounded Use a star washer beneath the head of at least one of the mounting screws to penetrate the anodized surface and to reach bare metal LGM Series Heat Sinking The LGM series drives LGM103 10 and LGM303 10 require additional heat sinking when the continuous armature current is above 5 amps Use ACE heat sink kit part number HSK 0001 All other chassis drives have sufficient heat sinking in their basic configurations Use a thermally conductive heat sink compound such as Dow Corning 340 Heat Sink Compound between the back of the chassis and heat sink surface for optimum heat transfer LGM Series Speed Adjust Potentiometer sure that the potentiometer tabs do not make contact with the potentiometer s body 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
21. ine fuse may have to be replaced with a lower rated one Fuses should be rated for 250 VAC or higher and approximately 15096 of the maximum armature current Refer to Table 1 on page 9 for recommended fuse values LGM Series Table 1 Recommended Line Fuse Sizes 180 VDC DC AC Line Motor Armature Current Fuse Size Horsepower Horsepower ACE offers fuse kits See Section 10 Accessories and Replacement Parts on page 44 for fuse kit part numbers LGM Series Connections Do not connect this eguipment with power applied Failure to AN heed this warning may result in fire explosion or serious injury ACE strongly recommends the installation of a master power switch in the voltage input line as shown in Figure 5 page 14 The switch contacts should be rated at a minimum of 200 of motor nameplate current and 250 volts WARNING Quick Disconnect Terminal Block The quick disconnect terminal block is composed of a 6 pin header block and 6 screw terminal plug Figure 4 on page 11 To use the quick disconnect terminal block 1 Carefully pull terminal plug from header block 2 With a small flat head screwdriver turn terminal plug screw counterclockwise to open wire clamp Insert stripped wire into the large opening in front of the plug Turn the terminal plug screw clockwise to clamp the wire Repeat steps 2 4 for each terminal until all connections are made Make no connections to F1 and F2 if u
22. ipers S2 Connect the supply end of the speed adjust potentiometer to S3 of only one drive See Figure 17 Speed Adjust Potentiometer 10K Ohms Figure 17 Single Speed Potentiometer Control of Multiple Drives LGM Series Reversing A dynamic brake may be used when reversing the motor direction Figure 18 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 See the Dynamic Braking section on page 21 for recommended dynamic brake resistor sizes Figure 18 Reversing Circuit Wiring Normally Open Inhibit LGM Series Reversing with a CLD100 1 Controller CLD100 1 controller be used in a reversing application The CLD100 1 must be inhibited while braking If the inhibit feature is not used the CLD100 1 will continue to regulate This will cause overshoot when the motor is reconnected to the drive Figure 19 shows a wiring diagram of the reversing circuit using a LGM series drive and a CLD100 1 Note Only one feedback device Optical Encoder or Magnetic Pickup may be connected to a CLD100 1 at a time ACE DRIVE Dynamic Brake Resistor tJ BRAKE REV CLD100 1 Inhibit Leads 1 Common Optical Signal Encoder 5 VDC Figure 19 Reversing with a CLD100 1 Magnetic Pickup
23. itch is opened The DECEL trim pot setting determines the rate at which the drive decelerates By closing the Run Stop switch the motor accelerates to set speed at a rate determined by the ACCEL trim pot setting See Figure 5 on page 14 for switch location and wiring NOTE If no run stop switch is used a jumper must be placed between terminals 1 and 2 factory preinstalled LGM Series Section 5 Calibration Dangerous voltages ekist on the drive when it is powered When possible disconnect the voltage input from the drive before adjusting the pots If the pots must adjusted with power applied use insulated tools and the appropriate personal protection equipment BE ALERT High voltages can cause serious or fatal injury LGM series drives have user adjustable trim pots Each drive is factory calibrated to its maximum current rating Readjust the calibration trim pot settings to accommodate lower current rated motors Four 4 trim pot settings increase with CW rotation and decrease with CCW rotation ACCEL DECEL TORQUE LIMIT and IR COMP The MIN OUT and MAX SPD trim pots increase with CCW rotation and decrease with CW rotation Use a non metallic screwdriver for calibration Each trim pot is identified on the printed circuit board LGM Series Minimum Speed MIN OUT The MIN OUT setting determines the minimum motor speed when the speed adjust potentiometer or input voltage or cur
24. l conductors If it is not practical to shield power conductors ACE recommends shielding all logic level leads If shielding of all logic level leads is not practical the user should twist all logic leads with themselves to minimize induced noise It may be necessary to earth ground the shielded cable If noise is produced by 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 LGM Series Shielding Guidelines continued 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 Logic wires from other input devices such as motion controllers and PLL velocity controllers must be separated from power lines in the same manner as the logic I O on this drive Line Fusing Models LGM103 3 and LGM103 10 are preinstalled with one line fuse in fuse holder FU501 Models LGM303 3 and LGM303 10 are preinstalled with two line fuses in fuse holders FU501 and FU502 Models LGM103 10 and LGM303 10 are preinstalled with 15 amp fuses Models LGM103 3 and LGM303 3 are preinstalled with a 5 amp fuse Preinstalled line fuses are rated at or close to maximum horsepower If the horsepower rating of the motor being used is less than the maximum horsepower rating of the drive the l
25. laced 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 AMERICAN CONTROL ELECTRONICS www americancontrolelectronics com 14300 DE LA TOUR DRIVE gt SOUTH BELOIT IL 61080 e 815 624 6915 815 624 6965 fax Document Number 0003 Rev 0 March 2012 2011 AMERICAN CONTROL ELECTRONICS
26. ll CCW Set the speed adjust potentiometer or input voltage or current signal to maximum speed Carefully lock the motor armature Be sure that the motor is firmly mounted Apply line power The motor should be stopped Slowly adjust the TORQUE LIMIT trim pot CW until the armature current is 15096 of motor rated armature current Turn the speed adjust potentiometer CCW or decrease the input voltage or current signal Remove line power Remove the stall from the motor Remove the ammeter in series with the motor armature if it is no longer needed LGM Series IR Compensation IR The IR setting determines the degree to which motor speed is held constant as the motor load changes Use the following to recalibrate the IR setting 1 Set the IR COMP trim pot to minimum full CCW 2 Increase the speed adjust potentiometer or input voltage or current signal until the motor runs at midspeed without load for example 900 RPM for an 1800 RPM motor A handheld tachometer may be used to measure motor speed Load the motor armature to its full load armature current rating The motor should slow down While keeping the load on the motor rotate the IR COMP trim pot until the motor runs at the speed measured in step 2 If the motor oscillates overcompensation the IR COMP trim pot may be set too high CW Turn the IR COMP trim pot CCW to stabilize the motor 5 Unloa
27. n the RUN JOG switch to RUN for normal operation JOG PUSHBUTTON Figure 14 RUN JOG Switch Connection to Inhibit Normally Open Inhibit LGM Series RUN JOG Switch Potentiometer Connection Connect the RUN JOG switch and the JOG pushbutton as shown in Figure 15 When the RUN JOG switch is set to JOG the motor decelerates to minimum speed minimum speed is determined by the MIN OUT trim pot setting Press the JOG pushbutton to jog the motor Return the RUN JOG switch to RUN for normal operation SPEED ADJUST POTENTIOMETER JOG PUSHBUTTON Figure 15 RUN JOG Switch Connection to Speed Adjust Potentiometer LGM Series Leader Follower Application In this application use 150202 1 to monitor the speed of the leader motor Figure 16 The ISO202 1 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 ISO202 1 output voltage 10000000 ay Tooog ona Figure 16 Leader Follower Application LGM Series Single Speed Potentiometer Control Of Multiple Drives Multiple drives be controlled with a single speed adjust potentiometer because LGM series drives have built in isolation Connect all drive commons S1 and w
28. rent signal is set for minimum speed It is factory set for zero speed To calibrate the MIN OUT 1 Setthe speed adjust potentiometer or input voltage or current signal for minimum speed 2 Adjust MIN OUT until the desired minimum speed is reached or is just at the threshold of rotation Maximum Speed MAX SPD The MAX SPD setting determines the maximum motor speed when the speed adjust potentiometer or input voltage or current signal is set for maximum speed To calibrate MAX SPD 1 Setthe speed adjust potentiometer or input voltage or current signal for maximum speed 2 Adjust MAX SPD until the desired maximum speed is reached Note Check the MIN OUT and MAX SPD adjustments after recalibrating to verify that the motor runs at the desired minimum and maximum speed LGM Series Torque LIMIT TORQUE LIMIT should be set to 150 of motor nameplate current rating Continuous operation beyond this rating may damage the motor If you intend to operate beyond the rating contact your WARNING Feste ACE representative for assistance The TORQUE LIMIT setting determines the maximum torque for accelerating and driving the motor To calibrate TORQUE LIMIT refer to the recommended TORQUE LIMIT settings in Figure 10 on page 28 or use the following procedure With the power disconnected from the drive connect a DC ammeter in series with the armature Set the TORQUE LIMIT trim pot to minimum fu
29. sing a permanent magnet motor Insert plug into header until securely fastened LGM Series Header Block mounted on the drive Terminal Plug Figure 4 Quick Disconnect Terminal Block LGM Series Power Input Connect the AC line power leads to terminals L1 and 12 ACE recommends the use of a single throw double pole master power switch The switch should be rated at a minimum of 250 volts and 200 of motor current Refer to Figure 5 on page 14 Motor ACE drives supply motor armature voltage from A1 and A2 terminals where A1 is positive with respect to A2 If the motor does not spin in the desired direction remove power and reverse the A1 and A2 connections Connect a DC motor to terminals A1 and A2 as shown in Figure 5 on page 14 Ensure that the motor voltage rating is consistent with the drive s output voltage LGM Series Field Output Connections The field output is for shunt wound motors only Do not make any connections to F1 and F2 when using a permanent magnet motor See Table 2 for field output connections Use 14 16 AWG wire to connect the field output to a field shunt wound motor Table 2 Field Output Connections Approximate Field Connect Motor Line Voltage Voltage VDC Field To F1 and 11 F1 and F2 F1 and 11 F1 and F2 Speed Adjust Potentiometer Use a 10K ohm 1 4 W potentiometer for speed control Connect the counter clockwise end of the potentiometer to S1
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