User`s Manual - Leeson Electric Corporation
Contents
1. ELECTRIC MOTORS GEARMOTORS AND DRIVES User s Manual 47 75299x QO0 Series Models 175290 00 175291 00 175292 00 Pulse Width Modulated Adjustable Speed Drives for DC Brush Motors LEESON 17529X 00 Series drives are chassis drives accept a DC input voltage and output a DC power voltage to control the speed of a low voltage motor The speed may be controlled with a potentiometer or an external voltage signal Standard Features Provides smooth variable capability for mobile equipment Maintains variable speed control as batteries discharge Adjustable min speed max speed IR compensation current limit and accel Inhibit terminal permits optional start stop without breaking battery lines Speed potentiometer included Increases range OR running time of battery operated equipment through high efficiency Power LED gives a visual indication when power is applied to the drive Jumper reconnectable for low or high voltage Copyright 2002 by LEESON Electric All rights reserved No part of this manual may be reproduced or transmitted in any form without written permission from LEESON Electric The information and technical data in this manual are subject to change without notice LEESON Electric 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 LEESON Electric assumes no responsibility fo2. All adjustments increase with clockwise rotation CW and decrease with counter clockwise rotation CCW Use a non metallic screwdriver for calibration Each trimpot is identified on the printed circuit board see Figure 12 PAAGA MAXIMUM SPEED MINIMUM SPEED CURRENT LIMIT ACCELERATION COMPENSATION Figure 12 Calibration Trimpot Layout 22 Calibration MINIMUM SPEED MIN SPD The MIN SPD setting determines the motor speed when the speed adjust potentiometer is turned full CCW It is factory set for zero speed To calibrate MIN SPD 1 Set the MAX SPD trimpot to full CW 2 Set the MIN SPD trimpot to full CCW 3 Turn the main speed adjust potentiometer to full CCW If an input voltage is used instead of a speed adjust potentiometer set the input signal to minimum 4 Adjust the MIN SPD trimpot until the desired minimum motor speed is reached MAXIMUM SPEED MAX SPD The MAX SPD setting determines the motor speed when the speed adjust potentiometer is turned full CW It is factory set for maximum rated speed To calibrate MAX SPD 1 Set the MAX SPD trimpot full CCW 2 Apply power to the drive and turn the speed adjust potentiometer full CW If an input voltage signal is used instead of a speed adjust pot set the input signal to maximum 3 Adjust the MAX SPD trimpot until the desired maximum motor speed is reached Calibration 23 ACCELERATION ACCEL Th
3. terminals to accelerate the motor to set speed Twist inhibit wires and separate them from other 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 See Shielding Guidelines page 6 C507 C502 2 501 x QQ c Figure 10 Inhibit Terminals 20 Operation Power LED IL501 The power LED IL501 lights whenever DC line voltage is applied to the drive See Figure 11 below for the power LED location 128 P501 Of POWER 1501 MIN SPD ur 1501 Figure 11 Power LED 21 Calibration A Warning Dangerous voltages exist on the drive when it is powered and up to 30 seconds after power is removed and the motor stops 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 Each drive is factory calibrated to its maximum armature voltage and current rating Readjust the calibration trimpot settings to accommodate a motor with a lower armature voltage and current rating
4. acceptable method for emergency stopping For this reason LEESON strongly recommends installing an emergency stop switch see figure 7 page 13 Frequent decelerating to minimum speed produces 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 Line starting and line stopping Line starting and line stopping applying and removing DC voltage input is recommended for infrequent starting and stopping of a drive only When DC voltage input is applied to the drive the motor accelerates to the speed set by the speed adjust potentiometer When DC voltage input is removed the motor coasts to a stop 18 Operation Decelerating to minimum speed A single pole single throw switch may be used to decelerate a motor to minimum speed see Figure 9 Close the switch between 51 and 82 to decelerate the motor from set speed to minimum speed Open the switch to accelerate the motor from minimum speed to set speed The ACCEL trimpot setting determines the rate at which the motor accelerates 10K OHM SPEED ADJUST POTENTIOMETER DECEL TO MIN SPEED Figure 9 Run Decelerate to Minimum Speed Switch Operation 19 Inhibit terminals Short the INHIBIT terminals to coast the motor to zero speed see Figure 10 for INHIBIT terminal location Reopen the INHIBIT
5. and insulated tools if working on this drive with power applied Contents Safety Warnings i Specifications 1 Dimensions 2 Installation 4 Mounting 3 245 44 5443 a RO RE 4 5 es E ER ste scan nag am case 7 Fuse Circuit breaker protection 7 Jumper 501 JP501 8 Speed adjust 9 Connections 11 Voltage follower 14 Operation 15 Before applying power 15 Startup and shutdown 16 Starting and stopping methods 17 Inliibit terminals 19 Power LED 1 siiri s kilala nale Rd 20 Calibration 21 MINIMUM SPEED MIN SPD 22 MAXIMUM SPEED MAX SPD 22 ACCELERATION ACCEL 23 IR COMPENSATION COMP 24 CURRENT LIMIT CUR LIMIT 25 Application Notes 27 Multiple fixed speeds 27 Adjustable speeds using potentiometers in series 28 Independent adjustable speeds 29 RUN JOG switch 2 1 bad Aa a 30 Reversing or eret NR 31
6. than 18 in 457 mm use shielded cable Keep speed adjust potentiometer wires separate from power leads L1 L2 A1 A2 10 Installation MOUNT THROUGH A 0 38 IN 10 MM HOLE NUT STAR WASHER SPEED ADJUST POTENTIOMETER INSULATING DISK POT TAB ASSIGNMENTS PANEL Figure 5 Speed Adjust Potentiometer 10K OHM T SPEED POTENTIOMETER 50501 MINSPD ACCEL MAXSPD IRCOMP CUR LIMIT 0 100000 INHIBIT Figure 6 Speed Adjust Potentiometer Connections Installation 11 Connections A Warning Do not connect this equipment with power applied Failure to heed this directive may result in fire or serious injury LEESON strongly recommends the installation of a master power switch in the voltage input line as shown in Figure 7 page 13 The switch contacts should be rated at a minimum of 200 of motor nameplate current and 150 of the input voltage Power fuse and motor connections Connect the power input leads an external line fuse and a motor to the drive s printed circuit board PCB as shown in Figure 7 page 13 Motor LEESON drives supply motor voltage from A1 and A2 terminals It is assumed throughout this manual that when 1 is positive with respect to A2 the motor will rotate clockwise CW while looking at the output shaft protruding from the front of the motor If this is opposite of the desired rotation simply reverse the wiring of A1 and A2 12 Installation Connect a DC
7. B501 4 L exe 170 POT WIPER POT LOW 522 Customer Supplied 3PDT Center Off Center Blocked Switch Figure 18 Reversing hookup diagram 33 Troubleshooting Warning Dangerous voltages exist on the drive when it is powered and up to 30 seconds after power is removed and the motor stops When possible disconnect the drive while troubleshooting High voltages can cause serious or fatal injury Before troubleshooting Perform the following steps before starting any procedure in this section 1 Disconnect DC voltage input from the drive 2 Check the drive closely for damaged components 3 Check that no conductive or other foreign material has become lodged on the printed circuit board 4 Verify that all connections are correct and in good condition 5 Verify that there are no short circuits or grounded connections 6 Check that the drive s rated armature voltage and current is consistent with the motor ratings For additional assistance contact your local LEESON distributor or the factory direct Phone 262 377 8810 Fax 262 377 3440 34 Line fuse blows Line fuse does not blow but the motor does not run Troubleshooting Possible Causes Line fuses are the wrong size Motor cable or armature is shorted to ground Nuisance tripping caused by a combination of ambient conditions and high current
8. IMIT 175291 00 60A 100A 0A 120A CUR LIMIT 175292 00 60A 30A 120 CUR LIMIT Figure 13 Approximate CUR LIMIT Settings 27 Application Notes Multiple fixed speeds Replace the speed adjust potentiometer with series resistors with a total series resistance of 10K ohms Figure 14 Add a single pole multi position switch with the correct number of positions for the desired number of fixed speeds TOTAL SERIES RESISTANCE 10K OHMS Figure 14 Multiple Fixed Speeds 28 Application Notes Adjustable speeds using potentiometers in series Replace the speed adjust potentiometer with a single pole multi position switch and two or more potentiometers in series with a total series resistance of 10K ohms Figure 15 shows a connection for fixed high and low speed adjust potentiometers cw 5K OHM cw 5K OHM Figure 15 Adjustable Fixed Speeds Using Potentiometers in Series Application Notes 29 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 16 shows the connection of two independent speed adjust potentiometers that can be mounted at two separate operating stations SPEED 1 Figure 16 Independent Adjustable Speeds 30 Application Notes RUN JOG switch Using a RUN JOG switch is recommended in applicatio
9. TIIN S3HONI NI SNOISNAWIG SUOISUBWIG 007262571 pue 007162571 72 18611 824 19411489 22 88 0 E an L 1051961 L T kh loz 10 gt 28 ize 0911069 m lei vro U j g 66 0 e Ol 1 Ho e 0911069 LM 16 ove 9z 00 7 EMI 29118679 6411069 s 661 2 1 ls eto EN le 4 Installation Mounting A Warning Do not install rewire or remove this control with input power applied Doing so may cause fire or serious injury Make sure you have read and understood the Safety Warnings on page i before attempting installation Drive components are sensitive to electrostatic fields Avoid contact with the circuit board directly Hold drive by the chassis only Protect the drive from dirt moisture and accidental contact Provide sufficient room for access to the terminal block and calibration trimpots Mount the drive away from other heat sources Operate the drive within the specified ambient operating temperature range Prevent loose connecti
10. Troubleshooting 33 Before troubleshooting 33 Limited Warranty inside back cover Illustrations Figure 1 175290 00 Dimensions 2 Figure 2 175291 00 and 175292 00 Dimensions 3 Figure Heatsink 7 Figure 4 Jumper 501 JP501 8 Figure 5 Speed Adjust Potentiometer 10 Figure 6 Speed Adjust Potentiometer Connections 10 Figure 7 Power Fuse and Motor Armature Connections 13 Figure 8 Voltage Follower Connections 14 Figure 9 Run Decelerate to Minimum Speed Switch 18 Figure 10 Inhibit Terminals 19 11 Power LED ss sal al k ane a ak a b a kad a dak RR 20 Figure 12 Calibration Trimpot Layout 21 Figure 13 Approximate CUR LIMIT Settings 26 Figure 14 Multiple Fixed Speeds 27 Figure 15 Adjustable Fixed Speeds Using Potentiometers in Series 28 Figure 16 Independent Adjustable 29 Figure 17 RUN JOG Switch Connection to Speed Adjust Potentiometer 30 Figure 18 Reversing hookup diagram 32 Tables Table 1 Wire Gauge Length Chart 5 Specification
11. e ACCEL setting determines the time the motor takes to accelerate to a higher speed See Specifications on page 1 for approximate acceleration times The ACCEL setting is factory set to its minimum value full CCW To calibrate ACCEL 1 Set the ACCEL trimpot full CCW 2 Apply power to the drive and turn the main speed adjust potentiometer full CW If an input voltage signal is used instead of a speed adjust pot set the input signal to maximum Note the time that the drive takes to accelerate to the desired speed 3 Adjust the ACCEL trimpot until the desired acceleration time is reached Turn the ACCEL trimpot CW to increase the acceleration time and CCW to decrease the acceleration time 24 Calibration IR COMPENSATION IR COMP The IR COMP setting determines the degree to which motor speed is held constant as the motor load changes It is factory set for optimum motor regulation Use the following procedure to recalibrate the IR COMP setting Setthe IR COMP trimpot to minimum full CCW Rotate the speed adjust potentiometer until the motor runs at midspeed without load for example 900 RPM for an 1800 RPM motor A hand held tachometer may be used to measure motor speed 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 trimpot until the motor runs at the speed measured in step 2 If the motor oscillate
12. f such equipment Any action against LEESON Electric 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 e 2100 Washington Street Grafton WI 53024 0241 U S A Phone 262 377 8810 Fax 262 377 3440 Document Number 250 0337 Revision 1 Printed in the U S A 2 02 U S A 12 00 Canada 13 00
13. ide of the DC voltage input 8 Installation Jumper 501 JP501 LEESON 17529X 00 series drives are shipped with JP501 open no jumper applied This allows you to use 24 VDC motors with the 175290 00 and 175291 00 or 48 VDC motors with the 175292 00 To use lower voltage DC motors 12 VDC or 36 VDC respectively jumper pins 2 and 3 with the jumper provided See Figure 4 for the location of JP501 175290 00 16 Amp 12 24 VDC 175291 00 60 Amp 12 24 VDC Jumper 501 175292 00 60 Amp 36 48 VDC Oss m m C 5 8 9 8 E me 8 g 2 2 O C507 C502 8 5 C504 F1 i 123 st z EZ MAT POWER uos XX C O O men UD Lan 20 142 Figure 4 Jumper 501 JP501 Installation 9 Speed adjust potentiometer A Warning Be sure that the potentiometer tabs do not make contact with the potentiometer enclosure Grounding the input will cause damage to the drive Mount the speed adjust potentiometer through a 0 38 in 10 mm hole with the hardware provided see Figure 5 on Page 10 Install the circular insulating disk between the panel and the 10K ohm speed adjust potentiometer Twist the speed adjust potentiometer wire to avoid picking up unwanted electrical noise If speed adjust potentiometer wires are longer
14. ielding of all conductors If it is not practical to shield power conductors LEESON recommends shielding all logic level leads If shielding of 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 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 Installation Heat sinking 175291 00 and 175292 00 drives are pre mounted on a heat sink For optimum heat transfer mount the drive with heatsink fins standing vertically as shown in Figure 3 below Heatsink Fins Figure 3 Heatsink mounting Fuse Circuit breaker protection All LEESON drives should be protected by a fuse or circuit breaker Use a fast acting fuse or circuit breaker rated for approximately 200 of the maximum armature current and armature voltage Connect the fuse or circuit breaker to the VDC IN s
15. motor to PCB terminals A1 and A2 as shown in Figure 7 page 13 Ensure that the motor voltage rating is consistent with the drive s output voltage Power input A Warning This drive is not diode protected from reverse battery voltage You must assure that POS is wired to VDC IN and NEG is wired to VDC IN Connect the DC power leads to terminals VDC IN and VDC IN or to a single throw single pole master power switch as shown in Figure 7 page 13 recommended Fuse Wire a power input fuse between the stop switch if installed and the VDC IN terminal on the circuit board The fuse should be rated at 150 of input voltage and 150 200 of maximum motor nameplate current Installation 13 NEG EMERGENCY STOP SWITCH o o POS R501 VDC INPUT VDC INPUT FUSE MOTOR ARMATURE 501 WER 1501 R502 Figure 7 Power Fuse and Motor Armature Connections 14 Installation Voltage follower Instead of using a speed adjust potentiometer the drive may be wired to follow an isolated floating or differential 0 10 VDC signal that is isolated from earth ground Figure 8 Connect the signal input to S2 Connect the signal common to S1 Make no connection to S3 A potentiometer can be used to scale the analog input voltage SIGNAL COMMON 0 10 VDC SIGNAL INPUT on MINSPD ACCEL M INHIBI Figure 8 V
16. nnect motor to 1 and A2 Recalibrate MIN SPD and MAX SPD Recalibrate MIN SPD and MAX SPD Increase MAX SPD setting Increase IR COMP setting Check motor load Resize the motor and drive if necessary Adjust the IR COMP setting slightly CCW until the motor speed stabilizes Check that motor and drive are of sufficient horsepower and amperage 36 Notes Limited Warranty A Warranty LEESON Electric warrants that this product will be free from defects in workmanship and material for one 1 year or 3 000 hours whichever comes first from date of shipment thereof Within this warranty period LEESON Electric will repair or replace such products that are 1 returned to LEESON Electric 2100 Washington Street Grafton WI 53024 0241 U S A and 2 determined by the LEESON Electric to be defective This warranty shall not apply to any product that has been subject to misuse negligence or accident or misapplied or repaired by unauthorized persons or improperly installed LEESON Electric 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 LEESON Electric s sole obligation and exclude all other warranties of merchantability for use express or implied LEESON Electric further disclaims any responsibility whatsoever to the customer or to a
17. ns 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 operated pushbutton for the JOG pushbutton see Figure 17 When the RUN JOG switch is set to JOG the motor decelerates to minimum speed Press the JOG pushbutton to jog the motor Return the RUN JOG switch to RUN for normal operation JoG PUSHBUTTON Figure 17 RUN JOG Switch Connection to Speed Adjust Potentiometer Application Notes 31 Reversing A Warning Do not operate the control outside the recommended input 10 Relays may be used in place of a switch but a neutral position must be provided to prevent plug reversing see Figure 18 page 32 DO NOT CHANGE DIRECTIONS WHILE THE MOTOR IS STILL RUNNING Plug reversing the motor not allowing the motor to come to a stop before reversing will cause excessively high currents to flow in the armature circuit which can damage the control and or motor and is not recommended Motor and battery wire must be minimum of 12 ga and a maximum of 6 ga TT rj Customer Supplied A SPST Switch I D VDC INPUT MVDCINPUT 7L o x E A1 m Je m Jon T
18. ny 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 breech of any of LEESON Electric 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 LEESON Electric by lawful authority LEESON Electric shall under no circumstances be liable for any consequential damages losses or expense arising in connection with the use of or inability to use LEESON Electric 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 one 1 year or 3 000 hour 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 LEESON Electric 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 o
19. oltage Follower Connections 15 Operation A Warning Dangerous voltages exist on the drive when it is powered and up to 30 seconds after power is removed and the motor stops BE ALERT High voltages can cause serious or fatal injury For your safety use personal protective equipment PPE when operating this drive Before applying power Verify that no conductive material is present on the printed circuit board Ensure that all jumpers are properly set 16 Operation Startup and shutdown To start the drive 1 Turn the speed adjust potentiometer full counterclockwise CCW or set the voltage signal to zero 2 Apply DC voltage input 3 Slowly advance the speed adjust potentiometer clockwise CW or increase the voltage signal The motor slowly accelerates as the potentiometer is turned CW or the voltage signal is increased Continue until the desired speed is reached 4 Remove DC voltage input from the drive to coast the motor to a stop If the motor or drive does not perform as described disconnect the DC voltage input immediately Refer to the Troubleshooting section page 33 for further assistance Operation 17 Starting and stopping methods Warning Decelerating to minimum speed or coasting to a stop 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 DC line power is the only
20. ons by avoiding excessive vibration of the drive Mount drive with its board in either a horizontal or vertical plane Six 0 19 in 6 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 Installation 5 A Warning Do not install remove or rewire this equipment with power applied Failure to heed this warning may result in fire explosion or serious injury This drive is isolated from earth 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 Opening any one motor lead may destroy the drive This drive is not diode protected from reverse battery voltage You must assure that POS is wired to VDC and NEG is wired to VDC IN Use 18 AWG wire for speed adjust potentiometer wiring Size the DC voltage input and motor wire according to the following chart Table 1 Wire Gauge Length Chart Armature Current Wire Gauge Maximum Wire amps AWG Length feet 0 19 14 8 20 32 10 10 60 8 10 6 Installation Shielding guidelines A Warning Under no circumstances should power and logic leads be bundled together Induced voltage can cause unpredictable behavior in any electronic device including motor controls As a general rule LEESON recommends sh
21. r 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 HAZARD HEAT DRY VIBRATION This symbol 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 LEESON assumes the qualified technician is intimate with the dangers involving batteries especially lead acid type This manual presupposes that you have taken all the necessary precautions to prevent a potentially fatal accident involving such batteries and have followed all standard electrical precautions Reduce the chance of an electrical fire shock or explosion by proper grounding over current protection thermal protection and enclosure Follow sound maintenance procedures It is possible for drive to run at full speed as a result of a component failure LEESON strongly recommends the installation of a master switch in the main power input to stop the drive in an emergency This drive is isolated from 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
22. s Max Max Armature Armature DC Voltage Current Voltage Input Range Model Amps DC VDC VDC 175290 00 16 12 or 24 10 32 175291 00 60 12 or 24 10 32 175292 00 60 36 or 48 32 50 Acceleration Time Range 0 5 10 seconds Deceleration Time 0 5 seconds Analog Input Voltage Range signal must be isolated S1to S2 0 10 VDC Input Impedance S1 to S2 Speed Regulation of base speed 196 Speed Range 80 1 Form Factor 1 01 Ambient Operating Temperature Range 10 40 Weight 175290 00 1 7 Ibs 175291 00 3 6 105 175292 00 3 6 Ibs 1 At 40 C ambient No additional heat sink is necessary 2 Or up to 95 of available battery voltage 3 The lower maximum armature voltage is selectable by connecting a jumper to pins 2 and 3 of JP501 see page 8 007062671 L 2 1641069 0911069 18 lovi os s 8 0z 0 s 610 suarawrnii S3HONI NI SNOISN3WIG T rzi s60 2 I os 022 Lj i EO GLO GBSOS e i o H F us 1 ej CEN c 8 0 0 ig Lr z y6 oz e sel o Dimensions SHSLSWI
23. s overcompensation the IR COMP trimpot may be set too high CW Turn the IR COMP trimpot CCW to stabilize the motor Unload the motor Calibration 25 CURRENT LIMIT CUR LIMIT A Warning CURRENT LIMIT should be set to 120 of motor nameplate current rating Continuous operation beyond this setting may damage the motor If you intend to operate beyond the rating contact your LEESON representative The CURRENT LIMIT setting determines the maximum armature current output of the drive Recalibrate the CUR LIMIT setting when a lower current limit is required Refer to the CUR LIMIT settings in Figure 13 page 26 or recalibrate using the following procedure 1 With the power disconnected from the control connect a DC ammeter in series with the armature 2 Set the CUR LIMIT trimpot to minimum full CCW 3 Set the speed adjust potentiometer to maximum full CW 4 Carefully lock the motor armature Be sure that the motor is firmly mounted 5 Apply line power The motor should be stopped 6 Slowly adjust the CUR LIMIT trimpot CW slowly until the armature current is 120 of motor rated armature current 7 Set the speed adjust potentiometer or input voltage to minimum 8 Remove the power from the drive and unlock the motor shaft 9 Remove the ammeter in series with the motor armature if it is no longer needed and re apply power to the drive 26 Calibration 175290 00 16A 10A 25A 0A 35A CUR L
24. spikes Speed adjust pot or reference voltage is set to zero speed Speed adjust pot or reference voltage connections are open Drive is overloaded Drive is not receiving DC line voltage Suggested Solutions 1 Check that line fuses are the correct size 2 Check motor cable and armature for shorts 3 Add a blower to cool the drive components decrease CUR LIMIT settings or resize motor and drive for actual load demand or check for incorrectly aligned mechanical components for jams See page 25 for information on adjusting the CUR LIMIT trimpot Increase speed adjust pot or reference voltage setting Check that the speed adjust pot or reference voltage connections are not open Verify that the motor is not jammed Increase CURR LIMIT setting Apply DC line voltage to VDC and VDC Line fuse does not blow but the motor does not run cont Motor runs too fast at maximum speed setting Motor runs too slow or too fast Motor will not reach the desired speed Motor pulsates or surges under load Possible Causes Motor is not connected MIN SPD and MAX SPD settings are too high MIN SPD and MAX SPD are not calibrated MAX SPD setting is too low IR COMP setting is too low Motor is overloaded IRCOMP is set too high Control is in current limit mode Troubleshooting 35 Suggested Solutions Co
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