Model 5230 User`s Manual
Contents
1. design Motor Test Sofware and data acquisition through PC integration are also available MAGTROL PRODUCTS Hysteresis Brakes and Clutches Magtrol pioneered hysteresis brakes and clutches These high precision ten sion and torque control devices are frictionless and offer significant ad vantages over magnetic particle and friction devices including superior torque repeatability and accuracy long life low operation costs smooth opera tion and broad speed range Typical ap plications include in process tensioning for coil winding labeling printing fiber optic cable film and many other material process applica tions Force Gauges Superior Force Gauge features Magtrol s Smart Cell precision arbor press advanced digital readout and Windows based software Magtrol s Smart Cell is exceptionally sturdy and designed to provide accurate measure ment on and off ram center The highly responsive digital readout provides two programmable set points peak hold RS 232 output and other features Available in three sizes with capacities from 0 5 000 Ibs KMAACG TROL 70 Gardenville Parkway Buffalo New York 14224 716 688 5555 FAX 716 668 8705 Auto Ranging Power Analyzers Highly accurate single and three phase power analyzers simultaneously display true RMS values of volts amps and watts of virtually any electrical signal DC through 20 kHz Built in IEEE 488 interface capability offers extended func2. the panels of both controller and readout are shown throughout this manual in capital letters 2 0 CONNECTING INSTRUCTIONS Three pieces of equipment must be interconnected for operation of this Model 5230 controller a Magtrol load cell dynamometer a Model 5420 or 5410 readout and the 5230 controller The Model 5230 controller will additionally provide torque and speed signals to an X Y recorder or other analog recording instruments Information and instructions on this application are given in Sections 4 and 5 To interconnect the three basic units proceed as follows 2 1 Connect the 2 pin dynamometer brake cable part number 88M049 between the dynamometer and the controller 2 2 Connect and lock the 14 pin cable part number 88M007 between the readout and the dynamometer 2 3 Connect the 5 pin DIN cable part number 88M039 between the readout TORQUE SPEED OUTPUT and the controller TORQUE SPEED INPUT 2 4 Connect the banana plug patch cord part number 88M002 between the controller TORQUE SPEED OUTPUTS and the X Y recorder inputs You are now ready to proceed with equipment checkout and manual operation of the interconnected units 3 0 OPERATIONAL CHECKOUT Complete the motor fixturing so that motor and dynamometer shafts are aligned The means of coupling the shafts should be angularly flexible and must be torsionally rigid Note Torsionally flexible couplings such as molded rubber should not be used Because of the high r
3. 230 front panel TORQUE control knob clockwise Verify rated current by inserting a DVM on appropriate current range in series with the brake leads Check that you have full torque by manually rotating the calibration beam clockwise and counterclockwise You should feel the applied torque Hang the specified calibrated weight on the calibration beam see the particular calibration beam and dynamometer specifications The weight should freely hang and the beam should be horizontal as indicated by the bubble level indicator on the beam Connect a DVM to the TORQUE ANALOG OUTPUT banana connector on the Model 5230 rear panel Refer to section 4 2 to compute the DVM voltage reading Note If the readout is in High Resolution Mode use E Ax DRx 104 To compute the Torque output voltage If the readout is in Standard Resolution Mode use E 4xDRx 10 To compute the Torque output voltage 15 0 METRIC AND POWER CONVERSIONS METRIC POWER millimeters x 03937 inches oz in x rpm 9 921 x 107 hp millimeters 25 4 inches oz in x rpm 7 401 x 10 watts grams 28 35 ounces watts 746 hp kilograms x 2 2046 pounds oz in x 72 008 gr cm P oz ft x 864093 kg cm For further information or technical assistance Ibin x 1 15212 kg cm please feel free to contact our Customer Service kg m x 9 80665 N m Newton meter oz in x 7 06155 x 10 N m Newton meter Department at any time 10 MAGTROL LIM
4. DYNAMOMETER X Y CONTROLLER MODEL 5230 INSTRUCTION AND REFERENCE MANUAL IDENTIFICATION DIAGRAMS MODEL 5230 FRONT PANEL MODEL 5230 REAR PANEL 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 13 1 13 2 13 3 13 4 14 0 15 0 CONTENTS Introduction Connecting Instructions Operational Checkout X Y Recording General Information X Y Recording Setup and Operation Automatic Speed Control Inertial Error Compensation General Information and Setup Locked Rotor Tests Torque Control Mode External Speed Torque Control Test Time Stability Description of Torque and Speed Control Circuits Description of Speed Measuring Circuit Torque Conditioning Circuit Description of Test Time Ramp Circuit Power Supplies Calibration and System Balancing Metric and Power Conversions Schematic Diagrams Magtrol Limited Warranty Other Magtrol Products iO N 1 1 11 110 OG OQ OQ OQ Un Un d BW NY NY WN 10 11 12 Back Cover OPERATING INSTRUCTIONS SCHEMATIC REFERENCES 1 0 INTRODUCTION 1 1 UNPACKING AII shipments leaving our plant are adequately packed and packaged If there are signs of damage to this carton or its contents please notify the shipper within 24 hours and retain carton and packing material for their examination 1 2 FEATURES OF THIS MANUAL The inside front cover contains drawings of the front and back panels of Model 5230 For convenience and faster identification functions appearing on
5. GE setting RANGE Example for 4 pole 60 Hz motor with free run speed of 1780 RPM using the 2 000 position on SPEED RANGE 10x 1780 8 9 VDC 41 2000 Note Zero RPM will not be absolute zero volts since up to 5 millivolts 05 fullscale is possible This value is adjustable refer to paragraph 14 0 4 2 ANALOG TORQUE OUTPUT The analog torque output E is proportional to the torque reading of the Model 5420 or 5410 readout The relationship is as follows DR represents the readout of all digits whole or decimal but with the decimal point if any omitted E 4xDRx 10 for standard resolution readout E 4xDRx 10 for high resolution readout Example for digital display of 48 2 oz ft of torque E 4x482 x 10 1 93 VDC 41 As with analog speed output zero torque is not absolute zero volts If adjustment is required refer to paragraph 14 0 5 0 X Y RECORDING SETUP AND OPERATION 5 1 Disconnect any test motor or hardware coupled to the dynamometer shaft 5 2 Install the calibration beam following the instructions in the dynamometer manual then using a precision weight establish a torque value within your range of interest 5 3 Scale the X Y recorder for the calibration required 5 4 With the weight removed check zero If the zero has moved reset it and recalibrate 5 5 Remove the calibration beam and couple a test motor to the dynamometer 5 6 With the controller SPEED RANGE set higher than the motor fre
6. ITED WARRANTY Magtrol Inc warrants its products to be free from defects in material and workmanship under normal use and service for a period of 1 year from the date of shipment Software is warranted to operate in accordance with its programmed instructions on appropriate Magtrol instruments This warranty extends only to the original pur chaser and shall not apply to fuses computer media or any product which in Magtrol s sole opinion has been subject to misuse alteration abuse or abnormal conditions of operation or shipping Magtrol s obligation under this warranty is limited to repair or replacement of a product which is returned to the factory within the warranty period and is determined upon examination by Magtrol to be defective If Magtrol determines that the defect or malfunction has been caused by misuse alteration abuse or abnormal conditions of operation or shipping Magtrol will repair the product and bill the purchaser for the reasonable cost of repair If the product is not covered by this warranty Magtrol will if requested by purchaser submit an estimate of the repair costs before work is started To obtain repair service under this warranty purchaser must forward the product transportation prepaid and a description of the malfunction to the factory The instrument shall be repaired at the factory and returned to purchaser transportation prepaid MAGTROL ASSUMES NO RISK FOR IN TRANSIT DAMAGE THE FOREGOING WARRANTY I
7. S PURCHASER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE MAGTROL SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCI DENTAL OR CONSEQUENTIAL DAMAGES OR LOSS WHETHER IN CONTRACT TORT OR OTHERWISE CLAIMS Immediately upon arrival purchaser shall check the packing container against the enclosed packing list and shall within thirty 30 days of arrival give Magtrol notice of shortages or any nonconformity with the terms of the order If purchaser fails to give notice the delivery shall be deemed to conform with the terms of the order The purchaser assumes all risk of loss or damage to products upon delivery by Magtrol to the carrier If a product is damaged in transit PURCHASER MUST FILE ALL CLAIMS FOR DAMAGE WITH THE CARRIER to obtain compensation Upon request by purchaser Magtrol will submit an estimate of the cost to repair ship ment damage Motor Analysis and Data Acquisition Magtrol dynamometers considered the industry standard range from 2 5 oz in to 250 Ib in full scale for testing electric hydraulic and pneumatic mo tors and gas engines Magtrol dyna mometers provide precise torque load ing by means ofa hysteresis brake per mitting motor test from zero load to locked rotor A variety of controller and readout options allow for application specific system
8. antalum capacitors Therefore the output is an AC signal in phase and proportional to the brake current change It is applied directly to the summing points of amplifiers U16 and U17 The outputs of speed amplifier U16 torque amplifier U17 and bias amplifier U18 drive the base circuit of NPN buffer transistor Q1 QI s collector signal turns on the front panel BRAKE ON indicator LED and provides base current to the PNP current amplifier transistor Q3 Q3 s amplified collector current flows out through the rear panel BRAKE connector and through the dynamometer brake coil This controlled current flow provides speed and torque control to the driving source connected to the dynamometer s load shaft 13 1 DESCRIPTION OF SPEED MEASURING CIRCUIT The dynamometer speed signal is received through the TORQUE SPEED 5 pin DIN connector located on the Model 5230 rear panel Optical coupler U1 isolates and converts the speed signal to a 15 volt logic signal The speed signal is shaped by Monostable Multivibrator U2 and passed on to a 4 bit Binary Counter U3 The Binary Counter is connected as a 4 bit ripple through counter The input count pulses applied to the Binary Counter U3 pin 14 are simultaneously divided by 2 4 8 and 16 The undivided Binary Counter input pluses from Monostable U2 are selected by the front panel SPEED RANGE X 1000 switch for the 2000 RPM range Also the divide by 2 4 8 and 16 outputs of U3 are selected by the SPEED RANGE X 1000 switch p
9. e run speed start the motor Scale the speed axis of the X Y recorder to the desired RPM per inch or centimeter excursion 5 7 Switch the controller s BRAKE toggle to ON The BRAKE energized light should be out Slowly rotate SPEED RANGE VERNIER counterclockwise until the BRAKE energized light comes on Then slowly rotate it clockwise until the light just goes out All equipment to record is now set up and a final accurate test curve of speed vs torque can be attempted But before doing so you should become familiar with the four additional functions that appear on the controller AUTOMATIC SPEED CONTROL INERTIAL ERROR COMPENSATION TEST TIME and STABILITY They are covered respec tively in ections 6 7 11 and 12 respectively 6 0 AUTOMATIC SPEED CONTROL This control operates in the speed control mode and performs essentially the same function as the manually adjustable SPEED control but it operates more smoothly and repeats automatically 6 1 Set the TEST TIME to 20 seconds This is an average setting See Section 11 for further information on test times 6 2 Activate the AUTOMATIC SPEED CONTROL by depressing the red SPEED CONTROL push button the button illuminates 6 3 Set the RPM toggle to DECREASING These settings will cause the motor to ramp from free run to locked rotor in approximately 20 seconds Note The AUTOMATIC SPEED CONTROL can be deactivated at any time by simply pressing the red button again to extinguish the l
10. er U17 to control dynamometer brake current flow resulting in the control of applied torque see section 13 0 for Torque circuit description Also the compensated torque signal is buffered by amplifier U11 and output through the rear panel TORQUE ANALOG OUTPUT banana connector for connection to the X Y recorder 13 3 DESCRIPTION OF TEST TIME RAMP CIRCUIT Stable 5 00 volts dc from amplifier U12 is applied to an up down integrator consisting of amplifiers U13 and U14 The output of U14 is an up down time ramp set by the Model 5230 front panel TEST TIME SECONDS switch Speed timed ramps from 5 to 40 seconds can be selected 13 4 POWER SUPPLIES Power for the controller s operational amplifiers is 15 vdc and 15 vdc supplied by two three terminal regulator integrated circuits Q5 and Q6 respectively Unregulated 75 vdc and 45 vdc are supplied to the output transistors Q1 Q2 and Q3 14 0 CALIBRATION AND SYSTEM BALANCING Normally the periodic adjustment and calibration of these various electronic elements is unnecessary since minor alteration in full scale values and offsets is of no consequence because calibration is performed on the X Y recorder each time the equipment is set up The following description of the actual function of these adjustments is primarily to assist in understanding their purpose and the controller s operation 14 1 Adjust the 5V reference U12 Connect a DVM between test point TP5 Op Amp UI2 pin 6 and common chassi
11. esponse of the Model 5230 controller they can induce system instability resulting in high frequency shaft oscillation 3 1 Set the front panel controls on the controller as follows a BRAKE ON OFF switch to OFF b SPEED RANGE to the first value above the maximum anticipated free run speed of the motor c SPEED RANGE VERNIER to full clockwise d SPEED CONTROL MODE to full clockwise RANGE MAXIMUM SPEED TORQUE CONTROL MODE to full counterclockwise ZERO TORQUE e STABILIZED OPEN LOOP switch to OPEN LOOP f AUTOMATIC SPEED CONTROL to OFF illuminating pushbutton dark g TEST TIME to any desired setting h RPM INCREASING DECREASING to its center neutral position opposite RPM i INERTIAL ERROR COMPENSATION to full counterclockwise zero on both rotating scales j POWER ON OFF to ON 3 2 Start the motor and check to be sure the free run speed indicated by the tachometer is lower than the SPEED RANGE setting 3 3 Switch the BRAKE ON OFF toggle to ON 3 4 Slowly rotate the SPEED RANGE VERNIER counterclockwise until the BRAKE energized light goes on Then rotate it very slightly until the light just goes out and leave it at this setting Note If the motor speed is less than 1000 RPM set the vernier at maximum counterclockwise the BRAKE energized light will not go on 3 5 Slowly rotate the SPEED control counterclockwise This causes the dynamometer to load the test motor and the BRAKE energized light will go on con
12. f the test motor is not energized there is no torque signal 10 0 EXTERNAL SPEED TORQUE CONTROL External control of TORQUE and SPEED is provided when an external zero to 5 00 vdc signal is connected through the Model 5230 rear panel phone connectors The TORQUE signal is proportional from zero to 5 00 volts DC no load torque to full load torque respectively The SPEED signal is proportional from zero to 5 00 volts DC from zero speed to free run speed respectively These signals should be a low source impedance and be capable of sourcing at least 1 milliampere of current such as an operational amplifier output When the external TORQUE SPEED signal is con nected the front panel TORQUE SPEED control knob is non functional 11 0 TEST TIME Generally the minimum time a motor is under load beyond the maximum efficiency operating point the better But necessary damping and delays in the data signals limit the speed with which data can be obtained while still maintaining accuracy As a rule of thumb for best results use a maximum recording time of 1 5 seconds per inch or 6 seconds per centimeter This translates to a TEST TIME setting of 15 or higher for most average conditions with of course other settings for special situations 12 0 STABILITY System damping is controlled by a locking potentiometer on the rear panel of the controller The potentiometer should not be rotated full counterclockwise which eliminates the rate feedback sig
13. ight This will return the motor to free run 6 4 At any load point the RPM toggle can be switched up to INCREASING This reverses the ramp causing the speed to increase at the same rate as it previously decreased 6 5 To cancel out the ramp and hold the test point switch the RPM toggle to its center neutral position 6 6 There is flexibility in the method of controlling the equipment For example the RPM toggle can be left in DE CREASING and ramp control initiated solely by the red AUTOMATIC SPEED CONTROL button 7 0 INERTIAL ERROR COMPENSATION GENERAL INFORMATION AND SETUP In X Y recording the motor speed is continually changing Thus the true torque measurement is the sum of two factors the actual turning power of the motor plus the addition when decelerating or subtraction when accelerating of the stored energy in the system inertia The inertia factor is proportional to the rate of change of speed and the mass of the system The INERTIAL ERROR COMPENSATION control supplies an adjustable quantity mass of the differentiated speed signal differentiation rate of change This electrical value is set up as negative in decelerating and positive in acceler ating and is summed with the unipolar torque signal 7 Release the lock on the side of the 10 turn dial control by setting it at its up 1 o clock position Then turn the knob full counterclockwise to the 0 0 position 7 2 Set up the equipment as in Section 6 Then estab
14. lish a torque speed point manually with either the SPEED or the TORQUE control When the motor has stabilized and speed is constant drop the recorder pen to mark this point 7 3 Return the control to its original position and using the AUTOMATIC SPEED CONTROL and RPM Decreasing switch record a curve around the point obtained manually 7 4 Return the motor to free run 7 5 Rotate the INERTIA COMPENSATION control one turn clockwise and repeat the operations in paragraphs 7 2 and 13 7 6 Continue rotating and repeating until the RPM toggle can be switched back and forth from INCREASING to DECREASING while the curve almost retraces itself At that stage the correct setting has been reached 7 7 When the correct INERTIA COMPENSATION setting has been established lock it in by setting the lock at its down 2 o clock position The value will be repeatable for future testing if the mass of the system remains approximately the same and the same SPEED RANGE is used 7 8 Typically leave a slight lead perhaps around 5 percent higher torque on the deceleration curve The magnetic alignment of the armature to the field is altered upon acceleration or deceleration and in addition it is natural for some rotor heating to occur resulting in displacement of the retrace curve 8 0 LOCKED ROTOR TESTS To obtain locked rotor torque as rapidly as possible and with cold motor performance the test procedure outlined in Section 6 should be modified as fo
15. llows 8 1 Set the BRAKE ON OFF switch at ON 8 2 Set the TORQUE STABILIZED OPEN LOOP switch at OPEN LOOP 8 3 Rotate the TORQUE control full clockwise 8 4 For X Y data recording be sure the recorder is on and calibrated and the pen up 8 5 Close the circuit breaker to the motor and immediately drop the recorder pen then raise the pen and open the circuit breaker This takes approximately two seconds Note Because of magnetic slotting effects and bearing friction most motors with plain bearings and to a lesser extent motors with ball bearings exhibit a range of locked rotor values Typically a plain bearing is free only when it has rotation to develop an oil film between shaft and bearing This range of locked rotor values can be as high as 30 percent depending on the motor 9 0 TORQUE CONTROL MODE This is a manual control its position functioning as follows 9 1 OPEN LOOP With the toggle in this position the TORQUE control regulates current to the dynamometer brake without feedback reference 9 2 STABILIZED With the toggle in this position the actual torque value is compared with the torque potentiometer setting and the current to the dynamometer brake is controlled proportional to the difference Therefore the torque is maintained constant despite any speed changes temperature changes or hysteresis effects Note This control is not useful for locked rotor tests A torque signal is necessary for closed loop operation and i
16. nal and results in system instability or full clockwise which causes heavy system damping and results in extreme sluggishness Normally the most desirable position for critical damping is close to center with acceptable variance from center depending on the motor dynamom eter combination in use When adjusting rotate the potentiometer very slowly 13 0 DESCRIPTION OF TORQUE AND SPEED CONTROL CIRCUITS Amplifier U16 is the SPEED control summing amplifier It receives three inputs to the inverting summing point speed analog rate feedback signal and the controlled reference Amplifier U17 operates essentially identically to amplifier U16 except that its signal sources are an analog proportional to torque or brake current as selected by the STABILIZED OPEN LOOP switch Amplifier U18 serves the function of automatic biasing off the preamplifier and subsequently torque if there is no speed present on the dynamometer Automatic biasing is desirable in case the TORQUE control is set for some value when the motor is off and the switch is in its STABILIZED position In this situation it prevents amplifier U17 from driving the dynamometer brake to full torque Amplifier U19 is the rate feedback device essential for the system s stability It receives a signal from a 1 0 ohm current sampling resistor in series with the dynamometer brake The level of this signal is controlled by the back panel STABIL ITY control The signal is decoupled by two 47MFD t
17. roviding the 4 000 8 000 16 000 and 32 000 RPM speed ranges The selected speed signal is applied to Frequency to Voltage Converter F V U4 The F V Converter converts the frequency signal into a proportional dc voltage Five calibrated speed ranges result 2 000 4 000 8 000 16 000 and 32 000 RPM with scale factors of 5 000 2 500 1 250 0 625 and 0 3125 volts per KRPM respectively The V F output signal is conditioned and filtered by amplifiers U5 and U6 This filtered speed signal is connected to Speed Control amplifier U16 to control dynamometer speed see section 13 0 The speed signal is also buffered by amplifier U7 and output through the rear panel SPEED ANALOG OUTPUT banana connector for connection to the X Y recorder 13 2 TORQUE CONDITIONING CIRCUIT The Torque signal from the dynamometer is received through the TORQUE SPEED 5 pin DIN connector located on the Model 5230 rear panel This bi directional torque signal first passes through an absolute value circuit consisting of amplifiers U8 and U9 This converts the plus or minus polarity torque signal for clockwise for counterclockwise to a unidirectional signal removes the minus sign for counterclockwise torque The torque signal is then amplified and inertial error compensation added by amplifier U10 The front panel 10 turn INERTIAL ERROR COMPENSATION dial sets the amount of added inertial correction This compensated torque signal is then connected to the Torque Control amplifi
18. s Adjust the 5v adjust trim potentiometer R for 5 vdc 5 millivolts 14 2 Calibrate the Torque signal amplifier U9 Connect a DVM between the TORQUE ANALOG OUTPUT red terminal and common black terminal Apply 0 500 vdc between pins 4 and 3 of the SPEED TORQUE 5 pin DIN connector located on the rear panel Adjust the CAL trim potentiometer R for 2 vdc 2 millivolts on the DVM 14 3 Calibrate the Torque signal amplifier U8 With the DVM connected as in step 14 2 above apply 0 5 vdc 2 millivolts between pins 4 and 3 of the SPEED TORQUE 5 pin DIN connector Adjust the CAL trim potentiometer R for 2 vdc 2 millivolts on the DVM Disconnect the dc source from pins 4 and 3 14 4 Zero the Speed voltage frequency converter U4 Connect a small solid jumper wire shorting pins 1 and 2 of the SPEED TORQUE 5 pin DIN connector Connect the DVM between TP3 and common With the DVM set to the most sensitive scale adjust the Zero trim potentiometer R for zero 2 millivolts 14 5 Calibrate the Speed voltage to frequency converter U4 Preset the Model 5230 front panel SPEED RANGE X 1000 switch to 2 x 1000 Remove the jumper connected in step 14 4 and connect a square wave signal generator set for 2000 Hz and switching from ground zero and 5 volts peak between pins 2 and 1 Connect a DVM between TP4 and common Adjust the Speed Cal trim potentiometer R for 10 2 millivolts vdc The other speed range
19. s are automatically calibrated when the 2000 RPM range is set This is true because these higher speed ranges are an exact digital division of the higher speed 14 6 Null Speed ripple signal US Connect an oscilloscope to TP4 Set for AC coupling on the most sensitive range and adjust for a good display of the observed ripple sawtooth Adjust the Ripple Null trim potentiometer R for a null minimum peak to peak amplitude of the observed AC sawtooth waveform 14 7 Recheck Speed calibration Repeat step 14 5 readjust if necessary Disconnect the signal generator 14 8 Zero Speed output signal U6 Reconnect the shorting jumper as used in step 14 4 Connect DVM to TP6 Adjust trim potentiometer R for zero 2 millivolts 14 9 Balance the test time integrator U13 Connect DVM to U13 pin 6 or connector J2 pin 13 Place the Model 5320 into Automatic Speed Control press Speed Control button light ON Activate the RPM INCREASE DECREASE toggle switch so the DVM indicates about 1 0 vdc Adjust the Ramp Bal trim potentiometer R for the slowest time rate of drift of the DVM voltage reading Return the RPM INCREASE DECREASE switch to its center position 14 10 TORQUE CALIBRATION VERIFICATION TORQUE CALIBRATION can be simply checked by connecting a MAGTROL calibration beam to the dynamometer shaft this calibration beam is an option contact the MAGTROL Customer Service Department Apply rated dynamometer brake current by advancing the Model 5
20. tinuing counterclockwise rotation of the SPEED control will load the motor down to locked rotor Note In selecting a specific test point of a torque speed reading it is usually best to set the SPEED control at a point lower than the test point then rotate it clockwise back to the test point This helps settle the system and stabilize the test point value more quickly Response sluggishness to these adjustments is normal it is caused by mechanical inertia and electrical delays 4 0 X Y RECORDING GENERAL INFORMATION Two banana plug outputs appear on the rear panel of the Model 5230 controller ANALOG SPEED and TORQUE The red jack on each is positive the black is negative and ground When connecting an X Y recorder to the controller use either a jumper or shorting bar to connect the recorder ground to either of the controller s black terminals Either axis of an X Y recorder can be assigned to torque and either to speed depending on scaling and data presentation The analog outputs from the controller are unidirectional and of low impedance If you wish to reverse the polarity of the input to either recorder axis simply reverse the axis input connector from the controller 4 ANALOG SPEED OUTPUT The signal amplitude is 10 00 volts at full scale for each position of the SPEED RANGE switch Therefore the precise output voltage E for a given speed RPM can be calculated from this ratio E 10 RPM Note RPM always lt SPEED RAN
21. tionality through Magtrol Soft ware Multiple ranges up to 50 amps 600 volts single phase and 100 amps 600 volts three phase with integrating and power factor measurement capabil ity plus many other features
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