USER`S MANUAL - Bison Gear and Engineering Corporation
Contents
1. 1 Specifications Max Max Armature Armature DC Voltage Current Voltage Input Range Model Amps DC VDC VDC 170 205 0016 16 12 or 24 10 32 Acceleration Time Range 0 5 10 seconds Deceleration Time 0 5 seconds Analog Input Voltage Range signal must be isolated S1 to S2 0 10 VDC Input Impedance S1 to S2 200KQ Speed Regulation of base speed 1 Speed Range 80 1 Form Factor 1 01 Ambient Operating Temperature Range 10 C 40 C Weight 170 205 0016 1 7 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 6 5 Page 2 7 7 12 2006 250 0419r0 qxp suoisueuiiq 91 00 S02 0ZL TE V eunbig 9111 069 091 0 9 r 8 oco HAREK 811010 Is 610 S4ALIWITIIMN SIHON NI SNOISNAWIC TIV ES Tor i pz s60 TSI Tz jais los oz TEO LOT t 7 leu 09 0 bn i 811020 v6 02 imensions H fo T P el 9 0 iol vvz 96 pze leu voy2. D 250 0419r0 qxp 7 12 2006 ba Page 3 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 connections by avoiding excessive vibration of the drive Mount drive with its board in either a horizontal or vertical plane Six 0 19 in 5 mm wide slots in the chassis accept 8 pan head screws Fasten either the large base or the narrow flange of the chassis to the subplate do 250 0419r0 qxp 7 12 2006 ba Page 4 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 S1 shares the same common as VDC Input 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
3. 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 and currents 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 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 10 sq M L501 OM MINSPD ACCEL MAX SPD IRCOMP CUR LIMIT CURRENT LIMIT MAXIMUM SPEED MINIMUM SPEED ACCELERATION COMPENSATION Figure 10 Calibration Trimpot Layout a 250 0419r0 qxp 7 12 2006 b Page 20 20 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 2 3 Set the MAX SPD trimpot to full CW Set the MIN SPD trimpot to full CCW 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 Adjust the MIN SPD trimp
4. 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 do 250 0419r0 qxp 7 12 2006 b Page 24 24 170 205 0016 16A 10A 25A 0A 35A CUR LIMIT Figure 11 Approximate CUR LIMIT Settings 250 0419r0 qxp 7 12 2006 b Page 25 25 Application Notes Multiple fixed speeds Replace the speed adjust potentiometer with series resistors 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 TOTAL SERIES RESISTANCE 10K OHMS Figure 12 Multiple Fixed Speeds 250 0419r0 qxp 7 12 2006 b Page 26 26 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 13 shows a connection f
5. 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 4 Apply DC line voltage to VDC and VDC 250 0419r0 qxp 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 7 12 2006 7 5 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 IR COMP ss set too high Control is in current limit mode Page 33 Suggested Solutions Connect motor to Al 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 250 0419r0 qxp 7 12 2006 b Page 34 34 Notes 250 0419r0 qxp 7 12 2006 b Page 35 35 Notes 250 0419r0 qxp 7 12 2006 b Page 36 36 Notes 250 0419r0 qxp 7 12 2006 7 5 Page 37 37 Bison Warrant
6. simply reverse the wiring of A1 and A2 a 250 0419r0 qxp 7 12 2006 ba Page 10 10 Connect a DC motor to PCB terminals A1 and A2 as shown in Figure 5 page 11 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 5 page 11 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 250 0419r0 qxp 7 12 2006 Dig Page 11 11 NEG VDC INPUT EMERGENCY R501 C501 VDC INPUT A2 ARMATURE 1L501 POWER 501 es e Figure 5 Power Fuse and Motor Armature Connections 250 0419r0 qxp 7 12 2006 ba Page 12 12 Voltage follower Instead of using a speed adjust potentiometer the drive may be wired to follow 0 10 VDC signal Figure 6 Connect the signal input to S2 Connect the signal common to S1 S1 is at the same potential as VDC Make no connection to S3 A potentiometer can be used to scale the analog input voltage SIGNAL COMMON 0 10 V
7. 250 0419r0 qxp 7 12 2006 ba Page a BISON USER S MANUAL 170 205 0016 Pulse Width Modulated Adjustable Speed Drives for DC Brush Motors 250 0419r0 qxp 7 12 2006 ba Page b The 170 205 0016 chassis drive accepts 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 O 2006 by Bison Gear 8 Engineering All rights reserved No part of this manual may be reproduced or transmitted in any form without written permission from Bison Gear 8 Engineering The information and technical data in this manual are subject to change without notice Bison Gear 8 Engineering 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 Bison Gear 8 Engineering and its Div
8. DC SIGNAL INPUT a503 Q501 asc C507 C504 O si PE s3 S0501 MINSPD ACCEL MAXSPD IRCOMP CUF BROS INHIBIT Figure 6 Voltage Follower Connections a 250 0419r0 qxp 7 12 2006 ba Page 13 13 Operation 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 currents 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 250 0419r0 qxp 7 12 2006 ba Page 14 14 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 31 for further assistance 250 0419r0 qxp 7 12 2006 ba Page 15 15 Starting and stopping me
9. ILE 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 5 Page 30 7 7 12 2006 250 0419r0 qxp 30 weibeip dnyooy Buislanay OL DER UDIMS POxDoJg 1aJusg JO 191u99 LAdE paiddns sewojsng H9IH LOd KA MOT LOd Y3dIM LOd WI e UL BOO od HEN ed I ege egn uw per ES Iv D s gt amp Q mu x go Zuze a Ee i INANI OGA D E MANI OGA D gt AA e ei YMS 1SdS E Ji PA Hid T fel payddng jeuojan i E Ge I 4 aa daan iH JA L L L L L eb 9 jo unwixew e pue eB z jo wnwjuiw e aq jsnui asim Alayeq pue 1040W 250 0419r0 qxp 7 12 2006 b Page 31 31 Troubleshooting Warning Dangerous voltages and currents 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 and currents 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 driv
10. JOG switch 28 Reversing a a ANA gita AA edate 29 Troubleshooting 31 Before troubleshooting leise 31 Unconditional Warranty inside back cover 250 0419r0 qxp 7 12 2006 ba Page iv iv Illustrations Figure 1 170 205 0016 Dimensions 2 Figure 2 Jumper 501 JP50O1 6 Figure 3 Speed Adjust Potentiometer 8 Figure 4 Speed Adjust Potentiometer Connections 8 Figure 5 Power Fuse and Motor Armature Connections 11 Figure 6 Voltage Follower Connections 12 Figure 7 Run Decelerate to Minimum Speed Switch 16 Figure 8 Inhibit Terminals 0c cece eee eee 17 Figure 9 Power EEEa grata gaz erd Bee Reiten aa 18 Figure 10 Calibration Trimpot Layout 19 Figure 11 Approximate CUR LIMIT Settings 24 Figure 12 Multiple Fixed Speeds 25 Figure 13 Adjustable Fixed Speeds Using Potentiometers in Series 26 Figure 14 Independent Adjustable Speeds 27 Figure 15 RUN JOG Switch Connection to Speed Adjust Potentiometer 28 Figure 16 Reversing hookup diagram 30 Tables Table 1 Wire Gauge Length Chart 4 4 250 0419r0 qxp 7 12 2006 ba Page 1
11. e 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 Bison distributor or the factory direct Phone 1 800 AT BISON do 250 0419r0 qxp Line fuse blows Line fuse does not blow but the motor does not run 7 12 2006 7 5 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 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 Page 32 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 23 for information on adjusting the CUR LIMIT trimpot 1 Increase speed adjust pot or reference voltage
12. es 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 do 250 0419r0 qxp 7 12 2006 ba Page 6 Fuse Circuit breaker protection All Bison 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 side of the DC voltage input Jumper 501 JP501 The 170 205 0016 drives are shipped with pins 1 and 2 jumpered on JP501 This allows you to use 24 VDC motors To use 12 VDC DC motors jumper pins 2 and 3 See Figure 2 for the location of JP501 Jumper 501 Figure 2 Jumper 501 JP501 a 250 0419r0 qxp 7 12 2006 ba Page 7 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 3 on Page 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 elect
13. isions 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 mvD0o62702 Printed in the United States of America 4 250 0419r0 qxp 7 12 2006 ba Page i Safety Warnings A k 12 IAZARD HEAT DRY VIBRATION This symbol AN denotes an important safety tip or warning Please read these instructions carefully before performing any of the procedures contained in this manual DO NOT INSTALL REMOVE OR REWIRE THIS EQUIPMENT WITH POWER APPLIED Bison 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 a drive to run at full speed as a result of a component failure Bison 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 ad
14. justing the calibration trimpots Use approved personal protective equipment and insulated tools if working on this drive with power applied 250 0419r0 qxp 7 12 2006 ba Page ii ii Contents Safety Warnings i Specifications 1 Dimensions 2 Installation 3 Mounting 5 26 etr Gr gaia DA are e E ed ga 3 MORDO Zuga A er Ee eed dt b Ep d A all 4 Shielding Guidelines 5 Fuse Circuit breaker protection 6 Jumper 501 JP501 ia ri gre etaz 6 Speed adjust potentiometer 7 Connections iio n Ree e dy ness hA Ran erar 9 Voltagefollower 12 Operation 13 Before applying power 13 Startup and shutdown 14 Starting and stopping methods 15 Inhibit terminals 0 000000 00 0c eee 17 Power LED IL501 18 Calibration 19 MINIMUM SPEED MIN SPD 20 MAXIMUM SPEED MAX SPD 20 ACCELERATION ACCEL 21 IR COMPENSATION IR COMP 22 CURRENT LIMIT CURLIMIT 23 4 250 0419r0 qxp 7 12 2006 ba Page iii iii Application Notes 25 Multiple fixed speeds 25 Adjustable speeds using potentiometers in series 26 Independent adjustable speeds 27 RUN
15. lerates 10K OHM SPEED ADJUST POTENTIOMETER DECEL TO MIN SPEED Figure 7 Run Decelerate to Minimum Speed Switch 250 0419r0 qxp 7 12 2006 b Page 17 17 Inhibit terminals Short the INHIBIT terminals to coast the motor to zero speed see Figure 8 for INHIBIT terminal location Reopen the INHIBIT 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 5 C507 C502 JP501 Su BOBO Figure 8 Inhibit Terminals a 250 0419r0 qxp 7 12 2006 b Page 18 18 Power LED IL501 The power LED IL501 lights whenever DC line voltage is applied to the drive See Figure 9 below for the power LED location O C504 O Saro c Sn Soo D501 C507 C502 123 EZE S0501 O Q 6 0006 1501 O Power 1501 C506 Cds R502 78501 VOC INPUT VDC INPUT AZ A Power LED IL501 Figure 9 Power LED 4 250 0419r0 qxp 7 12 2006 b Page 19 19 Calibration A Warning Dangerous voltages and currents exist on the drive when it is powered and up to 30 seconds after power is removed
16. or fixed high and low speed adjust potentiometers CW 5K OHM CW 5K OHM Figure 13 Adjustable Fixed Speeds Using Potentiometers in Series 250 0419r0 qxp 7 12 2006 nx Page 27 27 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 14 shows the connection of two independent speed adjust potentiometers that can be mounted at two separate operating stations SPEED 1 Figure 14 Independent Adjustable Speeds 250 0419r0 qxp 7 12 2006 b Page 28 28 RUN JOG switch Using a RUN JOG switch is recommended in applications where quick stopping is not needed and frequent jogging is required Use a single pole two position switch for the RUN JOG switch and a normally closed momentary operated pushbutton for the JOG pushbutton see Figure 15 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 d A E S2 O 10K OHM O JOG PUSHBUTTON Figure 15 RUN JOG Switch Connection to Speed Adjust Potentiometer do 250 0419r0 qxp 7 12 2006 Zag Page 29 29 Reversing Relays may be used in place of a switch but a neutral position must be provided to prevent plug reversing see Figure 16 page 30 DO NOT CHANGE DIRECTIONS WH
17. ot 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 2 Set the MAX SPD trimpot full CCW 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 Adjust the MAX SPD trimpot until the desired maximum motor speed is reached do 250 0419r0 qxp 7 12 2006 b Page 21 21 ACCELERATION ACCEL The 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 250 0419r0 qxp 7 12 2006 b Page 22 22 IR COMPENSATION IR COMP The IR COMP setting determines the degree to which m
18. otor 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 Set the 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 oscillates overcompensation the IR COMP trimpot may be set too high CW Turn the IR COMP trimpot CCW to stabilize the motor Unload the motor 250 0419r0 qxp 7 12 2006 b Page 23 23 CURRENT LIMIT CUR LIMIT Warning CURRENT LIMIT should be set to 12096 of motor nameplate current rating Continuous operation beyond this setting may damage the motor If you intend to operate beyond the rating contact your Bison 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 11 page 24 or recalibrate using the following procedure 1 With the power disconnected from the control connect a DC ammeter in series with the
19. rical noise If speed adjust potentiometer wires are longer than 18 in 457 mm use shielded cable Keep speed adjust potentiometer wires separate from power leads VDC VDC A1 A2 250 0419r0 qxp 7 12 2006 ba Page 8 8 MOUNT THROUGH A 0 38 IN 10 MM HOLE NUT STAR WASHER SPEED ADJUST POTENTIOMETER INSULATING DISK POT TAB ASSIGNMENTS PANEL Figure 3 Speed Adjust Potentiometer e 10K OHM IE E SPEED jo POTENTIOMETER 0490909009 Figure 4 Speed Adjust Potentiometer Connections 4 250 0419r0 qxp 7 12 2006 ba Page 9 Connections A Warning Do not connect this equipment with power applied Failure to heed this directive may result in fire or serious injury Bison strongly recommends the installation of a master power switch in the voltage input line as shown in Figure 5 page 11 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 5 page 11 Motor Bison drives supply motor 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 this is opposite of the desired rotation
20. 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 IN 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 16 14 8 do 250 0419r0 qxp 7 12 2006 ba Page 5 Shielding guidelines A Warning Under no circumstances should power and logic leads be bundled together Induced voltage can cause unpredictable behavior in any electronic device including motor controls As a general rule Bison recommends shielding of all conductors If it is not practical to shield power conductors Bison 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 wir
21. thods A 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 acceptable method for emergency stopping For this reason Bison strongly recommends installing an emergency stop switch see Figure 5 page 11 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 do 250 0419r0 qxp 7 12 2006 b Page 16 16 Decelerating to minimum speed A single pole single throw switch may be used to decelerate a motor to minimum speed see Figure 7 Close the switch between S1 and S2 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 acce
22. y Policy The Company warrants to the Buyer the products sold hereunder to be free of defects in material and workmanship under normal use and service for a period of one 1 year from the date of shipment The obligation of the Company under this warranty is limited to repair or replacing at its option any part or parts which upon examination shall disclose to the reasonable satisfaction of the Company to have been defective in material or workmanship Buyer must return the products to the Company s factory shipping charges prepaid and with complete information as to alleged defects and the installation operation and service of the products Except as otherwise expressly stated herein the Company makes no representation of warranty of any kind express or implied as to merchantability fitness for a particular purpose or any other matter with respect to the products sold hereunder 250 0419r0 qxp 7 12 2006 spp Page 38 BISON Bison Gear amp Engineering Corp 3850 Ohio Ave St Charles IL 60174 Phone 1 800 AT BISON www bisongear com Document Number 250 0419 Revision O May 2006 4
Download Pdf Manuals
Related Search