User Manual - American Control Electronics
Contents
1. 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 It is possible for a drive to run at full speed as a result of a AN component failure American Control Electronics strongly recommends the installation of a master switch in the main power input to stop the drive in an emergency Circuit potentials are at 115 VAC or 230 VAC above earth ground Avoid direct contact with the printed circuit board or with circuit elements to prevent the risk of serious injury or fatality Use a non metallic screwdriver for adjusting the calibration trim pots Use approved personal protective equipment and insulated tools if working on this drive with power applied LGC Series Table of Contents Section 1 Specifications Section 2 Dimensions Section 3 Installation Heat Sinking Mounting Chassis Field Output Connections Speed Adjust Potentiometer Meter MHB models only Analog Input Signal Section 4 Operation Before Applying Power Select Switches Input Voltage Select SW501 Armature Voltage Select2. IR COMP IR COMP IR COMP IR COMP IR COMP e e TORQUE IR COMP LGC Series 1 4 HP 180 VDC 1 25 AMPS 1 10 HP 180 VDC 0 50 AMPS 2HP 180 VDC 10 0 AMPS 11 2 HP 180 VDC 7 50 AMPS 3 4 HP 180 VDC 3 75 AMPS 1 2 HP 180 VDC 2 50 AMPS Figure 18 Recommended TORQUE and IR COMP Settings actual settings may vary with each application LGC Series Acceleration ACCEL The ACCEL setting determines the time the motor takes to ramp to a higher speed See Specifications on page 1 for approximate acceleration times 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 signal for minimum speed The motor should run at minimum speed Set the speed adjust potentiometer or input voltage 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
3. MILLIMETERS Figure 3 LGC410 1 5 and LGC410 10 Dimensions LGC Series 6 00 125 CONTROL JELECTRONICS 0 88 3 46 88 Z RIB ss Of 1 25 32 i 1 72 2 50 FT 44 64 ALL DIMENSIONS IN INCHES MILLIMETERS Figure 4 LGC430 1 5 and LGC430 10 Dimensions LGC Series 6 90 175 6 30 160 0 87 22 7 76 197 6 00 152 JELECTRONICS 4 50 114 EN 2 25 57 2 50 64 ALL DIMENSIONS IN INCHES MILLIMETERS Figure 5 LGC440 1 5 and LGC440 10 Dimensions LGC Series 6 90 175 amp lt 6 330 160 5 90 150 y s 112 3 00 76 E 4 0 7 18 1 75 44 lt 390 100 y weni LARA NES ALL DIMENSIONS IN INCHES MILLIMETERS Figure 6 HSK 0001 Dimensions LGC Series 6 90 175 6 29 160 5 90 150 T 0 90 23 t 152 p 01915 mF I veel MMM 1 q ALL DIMENSIONS IN INCHES MILLIMETERS Figure 7 HSK 0002 Dimensions LGC Series Section 3 Installation 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 Make sure
4. NEMA 1 NEMA 4X Heat sink kit part number HSK 0001 must be used when the continuous current output is over 5 amps Heat sink kit part number HSK 0002 must be used when the continuous current output is over 5 amps DC Armature Voltage with 115 VAC Line Voltage with 230 VAC Line Voltage Field Voltage with 115 VAC Line Voltage with 230 VAC Line Voltage Maximum Field Current Acceleration Time Range for 0 90 VDC Armature Voltage for 0 180 VDC Armature Voltage Deceleration Time Range for 0 90 VDC Armature Voltage for 0 180 VDC Armature Voltage 115 230 VAC 10 50 60 Hz single phase 0 180 VDC 50 VDC F1 to L1 100 VDC F1 to F2 100 VDC F1 to L1 200 VDC F1 to F2 0 5 11 seconds 0 5 22 seconds coast to a stop 13 seconds coast to a stop 25 seconds LGC Series Analog Input Range signal must be isolated S1 to S2 with 115 VAC Line Voltage with 230 VAC Line Voltage 0 5G maximum 0 50 Hz 0 1G maximum gt 50 Hz Safety Certifications UL cUL Listed Equipment File E132235 UL cUL Overload Protection except Q models CSA Certified Component File LR41380 Ambient Temperature Range Chassis Drive 10 C 55 C Cased Drive 10 C 40 C Suffix Definitions CFC Conformal Coating FLA Fuse Clips for L1 and A1 on chassis models FLL Fuse Clips for L1 and L2 on chassis models MHB Inhibit Style Connector for Meter QDT Power LED and Quick Disconnect Terminal Block V
5. SPD Set the MAX SPD trim pot full CCW Set the speed adjust potentiometer or input voltage signal for maximum speed Adjust MAX SPD until the desired maximum speed is reached Note Check the MIN SPD and MAX SPD adjustments after recalibrating to verify that the motor runs at the desired minimum and maximum speed LGC Series Torque TORQUE TORQUE 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 American Control Electronics representative for assistance The TORQUE setting determines the maximum torque for accelerating and driving the motor To calibrate TORQUE refer to the recommended TORQUE settings in Figure 18 on page 41 or use the following procedure With the power disconnected from the drive connect a DC ammeter in series with the armature Set the TORQUE trim pot to minimum full CCW Set the speed adjust potentiometer full CW or input voltage 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 trim pot CW until the armature current is 150 of motor rated armature current Turn the speed adjust potentiometer CCW or decrease the input voltage signal Remove line power Remove the stall from the motor Remove the ammeter in series with the mo
6. SW502 Startup LGC400 1 5 LGC400 1 5 QDT LGC400 10 LGC400 10 QDT LGC410 1 5 LGC410 10 LGC440 1 5 LGC440 10 LGC430 1 5 and LGC430 10 Starting and Stopping Methods LGC Series Line Starting and Stopping Dynamic Braking Inhibit Terminals Decelerating to Minimum Speed Section 5 Calibration Minimum Speed MIN SPD Maximum Speed MAX SPD Torque TORQUE R Compensation IR COMP Acceleration ACCEL Deceleration DECEL Section 6 Application Notes Multiple Fixed Speeds Adjustable Speeds Using Potentiometers In Series ndependent Adjustable Speeds RUN JOG Switch Inhibit Connection RUN JOG Switch Potentiometer Connection Leader Follower Application Single Speed Potentiometer Control Of Multiple Drives Reversing Section 7 Diagnostic LEDs Section 8 Troubleshooting Before Troubleshooting Section 9 Block Diagrams Section 10 Accessories amp Replacement Parts Unconditional Warranty LGC Series List of Tables Table 1 Recommended Line Fuse Sizes Table 2 Short Circuit Current Ratings Table 3 Field Output Connections Table 3 Minimum Recommended Dynamic Brake Resistor Values 34 LGC Series List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figur
7. advance the speed adjust potentiometer clockwise CW or increase the input voltage signal The motor slowly accelerates as the potentiometer is turned CW or as the input voltage signal is increased Continue until the desired speed is reached Set the POWER switch to the OFF position to coast the motor to a stop LGC Series LGC430 1 5 and LGC430 10 Do not change the FORWARD REVERSE switch while the motor is running The motor must come to a complete stop before reversing Changing motor direction before allowing the motor to completely stop will cause excessively high current to flow in the armature circuit and will damage the drive and or motor Set the RUN BRAKE switch to the BRAKE position Turn the speed adjust potentiometer to O full CCW or set the input voltage signal to minimum Set the POWER switch to the ON position Set the FORWARD REVERSE switch to the desired direction of rotation Set the RUN BRAKE switch to the RUN position Slowly advance the speed adjust potentiometer clockwise CW or increase the input voltage signal The motor slowly accelerates as the potentiometer is turned CW or as the input voltage signal is increased Continue until the desired speed is reached To reverse direction a Set the RUN BRAKE switch to the BRAKE position b Wait for the motor to come to a complete stop c Set the FORWARD REVERSE switch to the desired direction of rotation d Set the RUN
8. from the case The right side of the cover is hinged to the case Pull the slotted screw to open the case Carefully remove the conduit knockouts by tapping them into the case and twisting them off with pliers Set the POWER switch to the OFF position before applying the AC line voltage Install conduit hardware through the 0 88 inch 22 mm knockout holes Connect external wiring to the terminal block Grasp the slotted screw and tilt the front cover back into place Avoid pinching any wires between the front cover and the case Turn the slotted screw clockwise until tight to secure the front cover LGC 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 This product does not have internal solid state motor overload protection It does not contain speed sensitive overload protection thermal memory retention or provisions to receive and act upon signal from remote devices for over temperature protection If motor over protection is needed in the end use product i
9. 250 VAC or higher and 150 of maximum armature current Fuse HOT L1 only when the line voltage is 115 VAC Fuse both L1 and L2 when the line voltage is 230 VAC Table 1 on page 18 lists the recommended line fuse sizes Cased models come with preinstalled fuses Models LGC400 10 LGC430 10 and LGC440 10 are preinstalled with 15 amp fuses Models LGC410 1 5 LGC430 1 5 and LGC440 1 5 are preinstalled with 3 amp fuses Preinstalled line fuses are rated for maximum horsepower If the horsepower rating of the motor being used is less than the maximum horsepower rating of the drive the line fuse may have to be replaced with a lower rated one Fuses should be rated for 250 VAC or higher and approximately 150 of the maximum armature current Refer to Table 1 on page 18 to install a lower rated fuse Refer to Table 2 on page 18 for Short Circuit Current Ratings SCCR LGC Series Table 1 Recommended Line Fuse Sizes 180 VDC Maximum DC Motor Armature Current Fuse Size Horsepower Horsepower amps amps See Section 10 Accessories and Replacement Parts for fuse kit part numbers Table 2 Short Circuit Current Ratings Short Circuit Current Rating Maximum Drive Model Mama PTE Types of Branch Rating of Circuit Protection Overcurrent Current A Voltage V P Inverse LGC410 10 10 Time 10 000 240 V A LGC430 10 10 Circuit Breaker LGC440 10 10 Protection LGC Series Connections Do not connect this e
10. BRAKE switch to the RUN position To brake the motor set the RUN BRAKE switch to the BRAKE position To coast the motor to a stop set the POWER switch to the OFF position LGC Series Starting and Stopping Methods Dynamic braking coasting to a stop or decelerating to minimum speed is recommended for frequent starts and stops Do not use any of these methods for emergency stopping They may not stop a drive that is malfunctioning Removing AC line power both lines is the only acceptable method for emergency stopping For this reason American Control Electroincs strongly recommends installing an emergency stop switch on both AC line inputs see Figure 11 on page 25 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 drives automatically run to set speed when power is applied and the inhibit is not active 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 AC line 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 LGC Series Dynamic Braking Wait for the motor to completely stop before switching back t
11. 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 8 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 LGC Series Speed Adjust Potentiometer Be sure that the potentiometer tabs do not make contact with the potentiometer s body Grounding the input will cause damage to the drive WARNING If using a remote potentiometer with a chassis drive mount the speed adjust potentiometer through a 0 38 in 10 mm hole with the hardware provided Figure 8 Install the circular insulating disk between the panel and the 10K ohm speed adjust potentiometer Twist the speed adjust potentiometer wire to avoid picking up unwanted electrical noise If 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 MOUNT THROUGH A 0 38 IN 10 MM HOLE A NUT STAR WASHER SPEED ADJUST POTENTIOMETER INSULATING DISK POT TAB ASSIGNMEN
12. OLT FIELD CONNECT TO F2 FOR 200 VOLT FIELD Figure 12 LGC400 1 5 QDT and LGC400 10 QDT Connections LGC Series MOTOR FIELD SHUNT WOUND ARMATURE MOTORS ONLY EARTH GROUND GREEN SCREW WITH 115 VAC INPUT NOTE DO NOT make CONNECT TO TERMINAL 1 FOR 50 VOLT FIELD A CONNECT TO TERMINAL 6 FOR 100 VOLT FIELD any connections to terminals 6 and 7 if using a WITH 230 VAC INPUT CONNECT TO TERMINAL 1 FOR 100 VOLT FIELD permanent magnet motor CONNECT TO TERMINAL 6 FOR 200 VOLT FIELD Figure 13 Cased Drive Connections LGC Series Section 4 Operation Change voltage switch settings only when the drive is disconnected from AC line voltage Make sure both switches are set to their correct position If the switches are improperly set to a lower voltage position the motor will not run at full voltage and may cause damage to the transformer If the switches are improperly set to a higher voltage position the motor will overspeed which may cause motor damage or result in bodily injury or loss of life Dangerous voltages exist on the drive when it is powered BE ALERT High voltages can cause serious or fatal injury For your safety use personal protective equipment PPE when operating this drive If the motor or drive does not perform as described disconnect the AC line voltage immediately Refer to the Troubleshooting section page 52 for further assista
13. RT Power LED and Vertical Trim Pots LGC Series Section 2 Dimensions ig E a oso TT ose u 2 0 m 0 19 5 1 60 4 1 28 33 0 96 24 ALL DIMENSIONS IN INCHES MILLIMETERS Figure 1 LGC400 1 5 and LGC400 10 Dimensions LGC Series a JL NE NE NOR OU UP RS 1 55 39 1 28 33 HH 0 96 24 E EJ E El El I 4 30 109 ALL DIMENSIONS IN INCHES MILLIMETERS Figure 2 LGC400 1 5 QDT and LGC400 10 QDT Dimensions LGC Series H 6 00 125 __ AMERICAN CONTROL ELECTRONICS M 0 88 3 46 a Z 22 2 fo ot k 32 4 72 2 50 44 64 ALL DIMENSIONS IN INCHES
14. T TO TERMINAL 1 FOR 50 VOLT FIELD CONNECT TO TERMINAL 6 FOR 100 VOLT FIELD WITH 230 VAC INPUT CONNECT TO TERMINAL 1 FOR 100 VOLT FIELD MOTOR FIELD CONNECT TO TERMINAL 6 FOR 200 VOLT FIELD SHUNT WOUND MOTORS ONLY MOTOR ARMATURE 90 VDC 180 VDC LINE VOLTAGE PANG INPUTS EARTH GROUND Te GREEN SCREWS Figure 29 LGC410 1 5 LGC410 10 LGC440 1 5 and LGC440 10 Terminal Block Connections GC Series P1 10 KOHM SPEED ADJUST POTENTIOMETER sw3 FWD NA To WITH 115 VAC INPUT CONNECT TO TERMINAL 1 FOR 50 VOLT FIELD CONNECT TO TERMINAL 6 FOR 100 VOLT FIELD MOTOR FIELD SHUNT WOUND WITH 230 VAC INPUT MOTORS ONLY CONNECT TO TERMINAL 1 FOR 100 VOLT FIELD M UT CONNECT TO TERMINAL 6 FOR 200 VOLT FIELD at MOTOR ARMATURE 90 VDC 180 VDC 230 VAC LINE VOLTAGE 115 VAC INPUTS EARTH GROUND GREEN SCREW Figure 30 LGC430 1 5 and LGC430 10 Terminal Block Connections LGC Series Section 10 Accessories amp Replacement Parts Displays Closed Loop Open Loop Heat Sinks Chassis Potentiometer amp Connector 10K Pot Insulating Washer 10K Pot Insulating Washer 9 Insulated Tabs 9 Pin Terminal Block included with QDT drives Fuse 2 1 5 Amp 250V 3AG Fast blow Glass Fuses 2 3 Amp 250V 3AG Fast blow Glass Fuses 2 5 Amp 250V 3AG Fast blo
15. TM AMERICAN CONTROL Xa ELECTRONICS LGC SERIES USER MANUAL LGC400 LGC400 1 5 LGC400 LGC400 LGC410 LGC410 LGC430 LGC430 LGC440 LGC440 www americancontrolelectronics com Dear Valued Consumer Congratulations on your purchase of the LGC 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 No part of this document may be reproduced or transmitted in any form without written permission from American Control Electronics The information and technical data in this document are subject to change without notice American Control Electronics makes 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 assumes no responsibility for any errors that may appear in this document and makes no commitment to update or to keep current the information in this document LGC Series Safety First SAFETY WARNINGS Text in gray boxes denote important safety tips or warnings 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
16. TS PANEL Figure 8 Speed Adjust Potentiometer LGC Series Mounting NEMA 1 Enclosures NEMA 1 cased drives come with two 0 88 inch 22 mm conduit holes at the bottom of the case The units may be vertically wall mounted or horizontally bench mounted using the three keyholes on the back of the case 1 For access to the keyholes and the terminal strip remove the two screws from the front of the case by turning them counterclockwise Grasp the front cover and pull it straight out Install the mounting screws in the three keyholes Set the POWER switch to the OFF position before applying the AC line voltage Install conduit hardware through the conduit holes at the bottom of the case Connect external wiring to the terminal block Reinstall the front cover Avoid pinching any wires between the front cover and the case Reinstall the two screws on the front cover Turn the screws clockwise to tighten LGC Series Mounting NEMA 4X Enclosures NEMA 4X cased drives come with two 0 88 inch 22 mm conduit knockout holes at the bottom of the case The units may be vertically wall mounted using the four 0 19 inch 5 mm slotted holes on the attached heat sink For motor loads less than 5 ADC the drive may be bench mounted horizontally or operated without mounting 1 2 Install the mounting screws For access to the terminal strip turn the slotted screw on the front cover counterclockwise until it is free
17. all other warranties of merchantability for use expressed or implied American Control Electronics 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 Americn Control Electronics 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 American Control Electronics by lawful authority American Control Electronics shall under no circumstances be liable for any consequential damages losses or expenses arising in connection with the use of or inability to use American Control Electronics 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 American Control Electronics s liability for damages ar
18. e 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 American Control Electronics offers two accessory plug harnesses for connecting to the INHIBIT terminals part number KTW 0001 plug with 18 in 46 cm leads and part number KTW 0002 plug with 36 in 91 cm leads C Inhibit Le Terminals LL ETS ACCEL DECEL MAX SPD MIN SPD TORQUE IR COMP Figure 16 Inhibit Terminals LGC Series Decelerating to Minimum Speed The switch shown in Figure 17 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 trim pot setting If the MIN SPD trim pot is set full CCW the motor decelerates to zero speed when the switch between S1 and S2 is closed The DECEL trim pot setting determines the rate at which the drive decelerates By opening the switch the motor accelerates to set speed at a rate determined by the ACCEL trim pot setting 10K OHM SPEED ADJUST POTENTIOMETER DECEL TO MIN SPEED Figure 17 Run Dec
19. e 28 O WON DUN amp N F LGC400 1 5 and LGC400 10 Dimensions LGC400 1 5 QDT and LGC400 10 QDT Dimensions LGC410 1 5 and LGC410 10 Dimensions LGC430 1 5 and LGC430 10 Dimensions LGC440 1 5 and LGC440 10 Dimensions HSK 0001 Dimensions HSK 0002 Dimensions Speed Adjust Potentiometer Quick Disconnect Terminal Block Analog Input Signal Connections Chassis Drive Connections LGC400 1 5 QDT and LGC400 10 QDT Connections Cased Drive Connections Select Switches Dynamic Brake Wiring Inhibit Terminals Run Decelerate to Minimum Speed Switch Recommended TORQUE and IR COMP Settings Multiple Fixed Speeds Adjustable Speeds 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 Circuit Wiring Diagnostic LED Locations LGC Series Block Diagram LGC Series Figure 29 LGC410 1 5 LGC410 10 LGC440 1 5 and LGC440 10 Terminal Block Connections Figure 30 LGC430 1 5 and LGC430 10 Terminal Block Connections Section 1 Specifications LGC Series Maximum Armature Current ADC LGC400 1 5 LGC400 1 5 QDT LGC410 1 5 LGC430 1 5 LGC440 1 5 LGC400 10 LGC400 10 QDT LGC410 10 LGC430 10 LGC440 10 HP Range with 180 VDC Motor Enclosure 1 10 1 4 Chassis Chassis NEMA 1 NEMA 1 NEMA 4X Chassis Chassis NEMA 1
20. e Field Connect Motor Field To Voltage VDC Chassis Enclosure F1 and L1 Terminals 7 amp 1 F1 and F2 Terminals 7 amp 6 F1 and L1 Terminals 7 amp 1 F1 and F2 Terminals 7 amp 6 LGC Series Speed Adjust Potentiometer For chassis models use a 10K ohm 1 4 W potentiometer for speed control Connect the counter clockwise end of the potentiometer to S1 the wiper to S2 and the clockwise end to S3 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 S3 connections Refer to Figure 11 on page 25 For enclosed models the speed adjust potentiometer is factory installed and prewired Meter MHB models only To supply power to external devices the METER header block can supply an non isolated unregulated 9 VDC 5mA signal when the motor and the power supply of the drive are fully loaded More current is available with less motor loading METER can supply an unregulated 15V 10 mA signal in typical applications LGC Series Analog Input Signal Instead of using a speed adjust potentiometer the drive may be wired to follow an analog input voltage signal that is isolated from earth ground Figure 10 Connect the signal common to S1 Connect the signal reference to S2 Make no connection to S3 A potentiometer can be used to scale the analog input voltage An interface de
21. ee the Dynamic braking section on page 34 for recommended dynamic brake resistor sizes INHIBIT Figure 26 Reversing Circuit Wiring LGC Series Section 7 Diagnostic LEDs LGC series drives are equipped with one or two diagnostic LEDs e Current Limit CL or CUR LIMIT Red LED lights whenever the drive reaches current limit Power POWER Green LED lights whenever AC line voltage is applied to the drive Q models only LGC models ea et UY 504 Fo o ou INHIBIT sot o 8 ACCEL Power LED Current Limit LED e 8 Q POWER CUR CI ss METER INHIBIT F A1 A2 Li L2 Fl F2 Sl S2 S3 cso S S SI IS Q LGC QDT models Figure 27 Diagnostic LED Locations LGC 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 con
22. elerate to Minimum Speed Switch LGC Series Section 5 Calibration Dangerous voltages exist on the drive when it is powered When possible disconnect the voltage input from the drive before adjusting the trim pots If the trim pots 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 WARNING LGC 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 All adjustments increase with CW rotation and decrease with CCW rotation Use a non metallic screwdriver for calibration Each trim pot is identified on the printed circuit board LGC Series Minimum Speed MIN SPD The MIN SPD setting determines the minimum motor speed when the speed adjust potentiometer or input voltage signal is set for minimum speed It is factory set for zero speed To calibrate the MIN SPD Set the MIN SPD trim pot full CCW Set the speed adjust potentiometer or input voltage signal for minimum speed Adjust MIN SPD 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 signal is set for maximum speed To calibrate MAX
23. ising 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 American Control Electronics 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 Of Rad ik ae s LGC400 1 5 THR a LGC410 1 5 mgm i PAG orbs e i k F rd LGC400 1 5 QDT DC Saya LGC400 10 ge ER LGC410 10 Pel Eo Rees Fas CHE jep LGC430 10 LGC440 1 5 AMERICAN CONTROL Xa ELECTRONICS opo Fine Ci z LGC400 10 QDT oral EBE LGC430 1 5 Em PS LGC440 10 www americancontrolelectronics com 14300 DE LA TOUR DRIVE SOUTH BELOIT IL 61080 844 AMCNTRL MAN 0001 Rev 2
24. nce Before Applying Power 1 Verify that no foreign conductive material is present on the printed circuit board Ensure that all switches and jumpers are properly set LGC Series Select Switches Input Voltage Select SW501 Set the input voltage select switch SW501 to either 115 or 230 to match the AC line voltage See Figure 14 Armature Voltage Select SW502 Set the armature voltage select switch SW502 to either 90 or 180 to match the maximum armature voltage See Figure 14 s s s s s s s s Figure 14 Select Switches LGC Series Startup LGC400 1 5 LGC400 1 5 QDT LGC400 10 and LGC400 10 QDT Turn the speed adjust potentiometer full counterclockwise CCW or set the input voltage signal to minimum Apply AC line voltage Slowly advance the speed adjust potentiometer clockwise CW or increase the input voltage signal The motor slowly accelerates as the potentiometer is turned CW or as the input voltage signal is increased Continue until the desired speed is reached Remove AC line voltage from the drive to coast the motor to a stop LGC410 1 5 LGC410 10 LGC440 1 5 and LGC440 10 Turn the speed adjust potentiometer to 0 full CCW or set the input voltage signal to minimum Set the POWER switch to the ON position Slowly
25. nection is correct and in good condition Verify that there are no short circuits or grounded connections Check that the selection switch settings are correctly set Check that the drive s rated armature is consistent with the motor ratings For additional assistance contact your local American Control Electronics distributor or the factory direct 844 AMCNTRL or FAX 800 394 6334 PROBLEM Line fuse blows Line fuse does i not blow but the motor does i not run 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 signal is set to zero speed INHIBIT mode is active Drive is not receiving AC line voltage LGC 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 settings resize motor and drive i for actual load demand or check for incorrectly aligned mechanical components or jams See page 38 for information on adjusting the TORQUE trim pot Increase the speed adjust potentiometer setting or input voltage signal Remove the short from the INHIBIT terminals or add a short to INHIBIT terminals if INHIBIT mode is set to INVERTED Verify that the mo
26. ntrol Electronics 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 Figures 11 and 12 on pages 25 and 26 For enclosed models connect the AC line power leads to screw terminals 1 L1 and 2 L2 115 if using a 115 VAC line or to terminals 1 L1 and 3 L2 230 if using a 230 VAC line Refer to Figure 13 on page 27 Motor Drives supply motor armature voltage from A1 and A2 terminals It is assumed throughout this manual that when A1 is positive with respect to A2 the motor will rotate clockwise CW while looking at the output shaft protruding from the front of the motor If the motor does not spin in the desired direction remove power and reverse the A1 and A2 connections For chassis models connect a DC motor to terminals A1 and A2 as shown in Figure 11 on page 25 For enclosed models connect a DC motor to terminals 5 A1 and 4 A2 as shown in Figure 13 on page 27 Ensure that the motor voltage rating is consistent with the drive s output voltage LGC 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 WARNING See Table 3 for field output connections Use 14 16 AWG wire to connect the field output to a field shunt wound motor Table 3 Field Output Connections Line Voltage Approximat
27. o RUN This will prevent high armature currents from damaging the motor or drive Dynamic braking may be used to rapidly stop a motor Figure 15 on page 34 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 4 on page 34 for recommended dynamic brake resistor sizes Note Models LGC430 1 5 and LGC430 10 incorporate dynamic braking in their designs LGC Series Table 4 Minimum Recommended Dynamic Brake Resistor Values 15 ohms 180 VDC 30 ohms 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 with 12 gauge wire INHIBIT Figure 15 Dynamic Brake Wiring LGC Series Inhibit Terminals Short the INHIBIT terminals to coast the motor to minimum speed see Figure 16 for INHIBIT terminal location Open 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 ar
28. quipment with power applied Failure to heed this warning may result in fire explosion or serious injury AN American Control Electronics strongly recommends the installation of a master power switch in the voltage input line as shown in Figures 11 and 12 page 25 and 26 The switch contacts should be rated at a minimum of 200 of motor nameplate current and 250 volts This power switch is provided with NEMA 1 and NEMA 4X models Quick Disconnect Terminal Block QDT Drives Only The quick disconnect terminal block found only on QDT drives is composed of a 9 pin header block and 9 screw terminal plug Figure 9 on page 20 Refer to Figure 12 on page 26 for connection diagram 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 using a permanent magnet motor Insert plug into header until securely fastened LGC Series Header Block mounted on the drive F lt y Terminal Plug Figure 9 Quick Disconnect Terminal Block LGC Series Power Input For chassis models connect the AC line power leads to terminals L1 and L2 American Co
29. r Follower Application In this application use a ISO202 1 to monitor the speed of the leader motor Figure 24 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 ISO2021 output voltage cc 9 2 s2 180202 1 1 Follower Drive TB502 S1 10K Ohm optional Figure 24 Leader Follower Application LGC Series Single Speed Potentiometer Control Of Multiple Drives Multiple drives can be controlled with a single speed adjust potentiometer using a 1SO101 8 at the input of each drive to provide isolation Figure 25 Optional ratio potentiometers can be used to scale the IS0101 8 output voltage allowing independent control of each drive ratio pot A optional 10K Ohms 10K Ohms ratio pot B optional 10K Ohms ISO101 8 ratio pot H optional 10K Ohms Figure 25 Single Speed Potentiometer Control of Multiple Drives LGC Series Reversing A dynamic brake may be used when reversing the motor direction Figure 26 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 S
30. s in parallel with a total parallel resistance of 10K ohms Figure 21 shows the connection of two independent speed adjust potentiometers that can be mounted at two separate operating stations Figure 21 Independent Adjustable Speeds LGC 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 single pole normally closed momentary operated pushbutton for the JOG pushbutton Connect the RUN JOG switch and JOG pushbutton to the inhibit plug as shown in Figure 22 The motor coasts to a stop when the RUN JOG switch is set to JOG Press the JOG pushbutton to jog the motor Return the RUN JOG switch to RUN for normal operation JOG PUSHBUTTON N a INHIBIT Figure 22 RUN JOG Switch Inhibit Connection LGC Series RUN JOG Switch Potentiometer Connection Connect the RUN JOG switch and the JOG pushbutton as shown in Figure 23 When the RUN JOG switch is set to JOG the motor decelerates to minimum speed minimum speed is determined by the MIN SPD trim pot setting Press the JOG pushbutton to jog the motor Return the RUN JOG switch to RUN for normal operation 10K OHM SPEED ADJUST POTENTIOMETER RUN I JOG JOG PUSHBUTTON Figure 23 RUN JOG Switch Potentiometer Connection LGC Series Leade
31. t needs to be provided by additional equipment in accordance with NEC standards Use 18 24 AWG wire for logic wiring Use 14 16 AWG wire for AC line and motor wiring LGC Series 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 it is recommended to shield all conductors If it is not practical to shield power conductors it is recommended to shield 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 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 LGC Series Line Fusing Chassis drives should be fused for protection Use fast acting fuses rated for
32. the speed adjust potentiometer or input voltage signal for maximum speed The motor should run at maximum speed Set the speed adjust potentiometer or input voltage 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 LGC 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 19 Add a single pole multi position switch with the correct number of positions for the desired number of fixed speeds R1 R2 TOTAL SERIES RESISTANCE R3 10K OHMS R4 Figure 19 Multiple Fixed Speeds LGC Series Adjustable Speeds Using Potentiometers In Series Replace the speed adjust potentiometer with a series of resistors with a total series resistance of 10K ohms Figure 20 Add a single pole multi position switch with the correct number of positions for the desired number of fixed speeds CW 5K OHM Figure 20 Adjustable Speeds Using Potentiometers In Series LGC Series Independent Adjustable Speeds Replace the speed adjust potentiometer with a single pole multi position switch and two or more potentiometer
33. tor armature f it is no longer needed LGC Series IR Compensation IR COMP The IR COMP setting determines the degree to which motor speed is held constant as the motor load changes Use the following procedure to recalibrate the IR COMP setting 1 Set the IR COMP trim pot to minimum full CCW 2 Increase the speed adjust potentiometer or input voltage 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 toits 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 Unload the motor See Figure 18 on page 41 for recommended IR COMP settings TORQUE TORQUE TORQUE elle TORQUE MODELS LGC4x0 1 5 LGC400 1 5 QDT IR COMP IR COMP MODELS LGC4x0 10 LGC400 10 QDT IR COMP TORQUE IR COMP 1 8 HP 90 VDC 1 25 AMPS 1 20 HP 90 VDC 0 50 AMPS 1 HP 90 VDC 10 0 AMPS 3 4 HP 90 VDC 7 50 AMPS 1 3 HP 90 VDC 3 33 AMPS 1 4 HP 90 VDC 2 50 AMPS 8 TORQUE IR COMP amp E TORQUE TORQUE TORQUE TORQUE e TORQUE
34. tor is not jammed Increase TORQUE setting if set too low Remove power Connect the motor to A1 and A2 Reapply LGC Series PROBLEM Motor does not 1 MIN SPD is set too high stop whenthe x speed adjust i potentiometer is full CCW Motor connections to A1 and A2 are reversed Motor runs in the opposite i direction Motor runs too fast Motor will i not reach the desired speed Motor pulsates or surges under Motor bouncing in and out of current limit SUGGESTED SOLUTIONS Calibrate MIN SPD Remove power Reverse connections to A1 and A2 Reapply power Check motor load Resize the motor and drive if necessary Adjust the IR COMP setting slightly CCW until the motor speed stabilizes Make sure motor is not undersized for load adjust TORQUE trim pot CW les LGC Ser Weiseiq 2014 Salas 951 82 21n814 LIN AIN3HHNO n Adans HAMOd anoo UI UNYI CE HOLSISAU X3v30333 uoivuaNao WHO S0080 inves WHO 100 Y W3L3NOLN3LOd gas xvn Sue 1snrav 43348 AnaNi TON nosis EMA WHO YOL aasas aoe X9V80334 3univWuv Gas NIN N E s bp o x Oo 9 a o c Oo o n LGC Series 10 KOHM SPEED ADJUST POTENTIOMETER WITH 115 VAC INPUT CONNEC
35. vice such as American Control Electronics model IS0202 1 may be used to scale and isolate an analog input voltage With 115 VAC line voltage an analog input voltage range of 0 1 4 VDC is required to produce an armature voltage range of 0 90 VDC With 230 VAC line voltage an analog input voltage range of 0 2 8 VDC is required to produce an armature voltage range of 0 180 VDC SIGNAL INPUT Ci a O k sise ere SIGNAL COMMON si Figure 10 Analog Input Signal Connections LGC Series FIELD COILS SEE FIELD OUTPUT SECTION FOR NOTE DO NOT make CONNECTIONS any connections to F1 and F2 if using a permanent magnet motor POWER SWITCH 3 AC LINE VOLTAGE 10K OHM 115 230 VAC SPEED ADJUST POTENTIOMETER NOTE Do not add fuse to L2 unless input voltage is 230 VAC Figure 11 Chassis Drive Connections LGC Series CONNECT TO HEADER BLOCK MOTOR ARMATURE o POWER SWITCH NOTE Do not add fuse to L2 unless input voltage is 230 VAC H BERGER NOTE DO NOT make any connections to F1 and F2 if using a permanent magnet motor 10K OHM SPEED ADJUST POTENTIOMETER FIELD OUTPUT SHUNT WOUND MOTORS ONLY WITH 115 VAC INPUT CONNECT TO L1 FOR 50 VOLT FIELD CONNECT TO F2 FOR 100 VOLT FIELD WITH 230 VAC INPUT CONNECT TO L1 FOR 100 V
36. w Glass Fuses 2 8 Amp 250V 3AG Fast blow Glass Fuses 2 10 Amp 250V 3AB Normal blow Ceramic Fuses 2 15 Amp 250V 3AB Normal blow Ceramic Fuses Wiring Inhibit Plug 18 in leads Inhibit Plug 36 in leads Logic Cards Current Sensing Isolation Cards Unidirectional 8 outputs Bidirectional 1 output CLD100 1 OLD100 1 HSK 0001 HSK 0002 KTP 0001 KTP 0002 KTP 0003 KTF 0001 KTF 0002 KTF 0003 KTF 0004 KTF 0005 KTF 0006 KTW 0001 KTW 0002 CMC100 5 CMC100 20 1SO101 8 ISO202 1 LGC Series Unconditional Warranty A Warranty American Control Electronics 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 American Control Electronics 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 special controls will be evaluated on a case by case basis American Control Electronics 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 American Control Electronics s sole obligation and exclude
37. you read and understand the Safety Precautions on page i before attempting to install this product Heat Sinking Chassis Models LGC400 10 and LGC400 10 QDT require an additional heat sink when the continuous armature current is above 5 amps Use heat sink kit part number HSK 0001 All other chassis drives have sufficient heat sinking in their basic configuration Use a thermally conductive heat sink compound such as Dow Corning 340 Heat Sink Compound between the chassis and the heat sink surface for optimum heat transfer NEMA 1 Models LGC410 10 and LGC430 10 require an additional heat sink when the continuous armature current is above 5 amps Use heat sink kit part number HSK 0002 All other NEMA 1 drives have sufficient heat sinking in their basic configuration Use a thermally conductive heat sink compound such as Dow Corning 340 Heat Sink Compound between the chassis and the heat sink surface for optimum heat transfer NEMA 4X All NEMA 4X models come with the heat sink already attached Therefore all NEMA 4X drives have sufficient heat sinking in their basic configuration LGC Series Mounting Chassis 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 sufficient room for access to the terminals and calibration trim pots
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