Manual - Transbearco
Contents
1. 5 IV Wiring 7 V DC Tachometer Input 9 VI Inhibit 10 VII Operation 10 VIII Trimpot Adjustments 10 IX Function Indicator Lamps 12 X Limited Warranty 18 TABLES 1 Electrical Ratings amp Mechanical Specifications2. 8 5 Remote Potentiometer Connection 9 6 Analog Voltage Connection 9 7 Microprocessor Connection 9 8 Tachometer Connection 9 9 Inhibit Circuit Wiring 10 10 KBWD 15 Schematic 17 ii FACTORY SETTING OF TRIMPOTS i SIMPLIFIED SETUP AND OPERATING INSTRUCTIONS IMPORTANT You must read these simplified operating instructions before you proceed 1 Be sure AC line voltage is 115 VAC 50 60 Hz 2 Install the correct Plug in Horsepower Resistor according to motor current and or horsepower Note Disregard the horsepower rating marked on the Plug in Horsepower Resistor si
3. 3 2 Plug in Horsepower Resistor Chart 5 3 Terminal Block Wiring Information 7 4 Field Connections 8 5 KBWD 15 Parts List 13 14 15 16 FIGURES 1 Control Layout 4 2 Mechanical Specifications 6 3 AC Line and Armature Connection 7 4A Full Voltage Field 8 4B Half Voltage Field
4. gt 16 Form Factor RMS Avg Amps lt 1 05 Ambient Operating Range Temp C 0 45 Load Regulation Base Speed 1 Timed CL Trimpot Range TCL Seconds 1 7 Acceleration Trimpot Range ACCEL Seconds 0 5 15 Minimum Speed Trimpot Range MIN VDC 0 40 Maximum Speed Trimpot Range MAX VDC 70 130 Current Limit Trimpot Range CL Range Setting 0 200 IR Comp Trimpot Range IR VDC 0 15 AC Line Voltage Regulation Base Speed 0 5 Analog Input Voltage Voltage Following VDC
5. 0 10 Speed Potentiometer 5 watt Ohms 5K Based on motor having linear IR Comp characteristics PLUG IN HORSEPOWER RESISTOR A Plug in Horsepower Resistor must be installed to match the control to the motor horsepower and armature current See table 2 p 5 for the correct value Plug in Horsepower Resistors are stocked by your distributor CAUTION Be sure Plug in Horsepower Resistor is inserted completely into mating socket 3 FIG 1 CONTROL LAYOUT Illustrates factory setting of jumpers and approximate setting of trimpots 4 The Plug in Horsepower Resistor will match the motor characteristics to the control without having to calibrate the current limit CL and IR Compensation IR for most applications TABLE 2 PLUG IN HORSEPOWER RESISTOR CHART Motor Armature Current Amps DC Plug in Horsepower Resistor Ohms 90 VDC SCR Rated Motor Horsepower 130 VDC PWM Rated Motor Horsepower 3 3 5 0 0 1 1 3 1 2 1 2 3 4 2 5 0 18 1 4 1 3 1 3 2 0 0 25 1 8 1 6 1 6 1 4 0 7 1 0 0 51 1 15 1 10 1 12 1 8 0 4 0 6 1 0 1 30 1 20 1 20 1 15 0 1 0 3 2 0 1 50 1 100 1 30 1 50 1 For motor current not on chart use next lowest value Plug in Horsepower Resistor 2 Disregard the horsepower ranges marked on Plug in Hor
6. Plug in Horsepower Resistor It eliminates the need for recalibrating IR Comp and Current Limit when the control is used on various horsepower motors The control is factory set for armature feedback which provides excellent load regulation For applications that require superior performance tachometer feedback is also provided The KBWD 15 contains I x t overload protection which will shut the control down if the motor is overloaded for a predetermined time Diagnostic LEDs for Power On and Overload CL indication are also provided 2 RFI filtering is included as a standard feature It greatly reduces conducted interference which could affect sensitive equipment The control contains barrier terminals as standard however quick disconnect terminals can be provided as an option A potentiometer 5K isolated analog signal 0 10 VDC or PWM microprocessor output can be used to vary the output of the control TABLE 1 ELECTRICAL RATINGS amp MECHANICAL SPECIFICATIONS Model KBWD 15 Rated 5 0 Amps DC 115 VAC 50 60 Hz SPECIFICATIONS Output Voltage Range VDC 0 130 Speed Range Ratio 50 1 Operating Frequency kHz
7. clockwise increases the trip time This function provides motor overload protection IX FUNCTION INDICATOR LAMPS The control contains two LED indicator lamps that reflect operational status A Power On Indicator ON This lamp will glow GREEN when the AC line is connected to the control B Overload Indicator OL When the motor is loaded to the current limit setpoint CL setpoint is established by the value of the Plug in Horsepower Resistor and the CL trimpot this lamp will glow RED If the control is allowed to stay in CL and then times out in Timed Current Limit the CL LED will remain illuminated until the control is restarted with the On Off or Inhibit Switch If the OL LED remains illuminated during control operation a fault condition may exist Possible causes for this condition are as follows 1 Motor is overloaded check motor amps with DC ammeter in series with armature If motor is shunt type field may be open or not receiving proper voltage 2 Motor may be defective check motor for shorts or grounds 3 The CL may be set too low check value of Plug in Horsepower Resistor and CL trimpot Note The horsepower ranges marked on the Plug in Horsepower Resistor are marked for SCR controls See table 2 p 5 NOTE In some applications especially those requiring the motor to cycle on and off or to be changed from one speed to another the OL indicator may blink indicating a transient overload This
8. Horsepower Resistor is installed 2 Wire in a DC ammeter in series with armature lead Lock shaft of motor 3 Apply power Rotate CL trimpot CW until desired CL setting is reached factory setting is 1 5 times rated motor current CAUTION 1 Adjusting the CL above 150 of motor rating can cause overheating and demagnetization of some PM motors Consult motor manufacturer 2 Do not leave the motor in a locked condition for more than a few seconds since armature damage may occur E IR Compensation IR The IR comp circuit is used to stabilize motor speed under varying loads Note If control is in Tach Feedback mode the IR trimpot should be set to minimum CCW Readjust the IR trimpot as follows 11 1 Run the motor at approximately 30 50 of rated speed under no load and measure actual speed 2 Load the motor to rated current Rotate IR trimpot so that the loaded speed is the same as the unloaded speed measured in E1 Control is now compensated so that minimal speed change will occur over a wide range of motor load Note Too much IR Comp will cause unstable oscillatory operation F Timed Current Limit TCL This trimpot determines the approximate amount of time the drive will stay in Current Limit before timing out The trimpot has an adjustment range of 1 7 seconds and is factory set for three 3 seconds The trimpot can be reset according to the desired trip time Rotating the trimpot
9. MICROPROCESSOR CONNECTION V DC TACHOMETER INPUT If tachometer feedback is required an analog tach signal must be connected to terminal block TB3 Note For tachometer feedback Jumper J1 must be set for the proper tach voltage and the IR COMP must be set to minimum CCW position Connect the tachometer so that when the motor rotates the positive tach voltage lead is connected to T and the negative tach lead is connected to T See fig 8 Note If the tach voltage is connected backwards the control will drive the motor at full speed only NOTE Use the 7V position for tachometer with 7 volts per 1000 RPM and the 50V position for tachometer with 50 volts per 1000 RPM Set IR Comp to minimum for tach feedback ARMATURE FEEDBACK TACH 7V 1000 RPM TACH 50V 1000 RPM 9 FIG 9 INHIBIT CIRCUIT WIRING VI INHIBIT The control can be electronically stopped and started with the Inhibit circuit To Stop the control terminals I1 amp I2 must be shorted via a contact The control can be restarted by opening the contact Note The Inhibit should not be used as a safety disconnect Use only the AC line for that purpose See fig 9 p 10 Note The Inhibit Circuit is not isolated Do not earth ground inhibit leads VII OPERATION WARNING Read Safety Warning on page 1 before attempting to operate the control or severe injury or electrocution can result After the control has been set up properly and th
10. MODEL KBWD 15 Pulse Width Modulated PWM DC MOTOR SPEED CONTROL WHISPER DRIVE INSTALLATION AND OPERATING INSTRUCTIONS See Safety Warning on Page 1 and Application Note Warning on Page 2 The information contained in this manual is intended to be accurate However the manufacturer retains the right to make changes in design which may not be included herein Model KBWD 15 Rated 5 0 ADC 115 VAC 50 60 Hz KB Part No 8600 A COMPLETE LINE OF MOTOR DRIVES 1999 KB ELECTRONICS INC TABLE OF CONTENTS Section Page i Simplified Setup and Operating Instructions 1 ii Safety Warning 1 iii Application Note 2 I General Information 2 II Mounting 5 III Initial Setup
11. e wiring has been completed the start up procedure can begin If AC power has been properly connected to the control the ON LED indicator will illuminate Before starting be sure the main potentiometer is in the minimum position To start the control the potentiometer knob should be rotated clockwise the motor should begin to rotate Note If the motor rotates in the incorrect direction it will be necessary to disconnect the main AC power and reverse the armature wires VIII TRIMPOT ADJUSTMENTS The control contains trimpots which have been factory adjusted for most applications Figure 1 p 4 illustrates the location of the trimpots and their approximate adjustment positions Some applications may require readjustment of the trimpots in order to tailor the control to exact requirements See table 1 p 3 for range and factory setting of all trimpots Readjust trimpots as follows WARNING Do not adjust trimpots with main power on if possible If adjustments are made with power on insulated adjustment tools must be used and safety glasses must be worn High voltage exists in this control Electrocution and or fire can result if caution is not exercised Safety warning on page 1 must be read and understood before proceeding A Minimum Speed MIN The MIN trimpot is used to set the minimum voltage of the drive This sets the minimum speed of the motor Adjust the MIN trimpot as follows 1 Rotate Main Potentiometer to minimum s
12. ignation Connection Designation Supply Wire Gauge AWG Cu Maximum Tightening Torque lb in Minimum Maximum TB1 L1 L2 A A 22 12 7 TB2 F F 22 14 5 TB3 I1 I2 P1 P2 P3 22 14 5 TB4 T T 22 14 5 IV WIRING Warning Read Safety Warning before attempting to use this control Warning To avoid erratic operation do not bundle AC Line and motor wires with potentiometer voltage following enable inhibit or other signal wiring Use shielded cables on all signal wiring over 12 30 cm Do not ground shield A AC Line Connect AC line 115 VAC 50 60 Hz to terminals L1 and L2 It is recommended that a line fuse or circuit breaker be installed with a 10 amp 125 VAC rating B Motor Armature Connect motor armature to terminals A and A Be sure motor voltage corresponds to control output voltage range 90 130 VDC It is recommended that a fuse be installed in series with the armature choose a fuse rating equal to the motor rating 7 C Field For Shunt Wound Motors Only Do not use terminals F and F for any purpose other than to power the field on a shunt wound motor Connect motor shunt field to terminals F and F for 90VDC motors with 100VDC fields For motors with half voltage fields 90VDC motors with 50VDC fields connect field to terminals F and L1 See table 4 for summary of field connections See figures 4A and 4B for field wiring diagrams CAUTION Sh
13. ill prevent this runaway condition Use extreme caution when applying PWM controls to certain applications 2 PWM controls emit substantial levels of radio frequency interference RFI compared to SCR controls The KBWD contains a built in RFI filter which suppresses most of the RFI that would normally be conducted and radiated via the AC line However some RFI can still be radiated and conducted from the control and through the motor wires Shielded cables and other means of reducing the effect of RFI may have to be employed for some applications 3 This control contains inhibit enable and other circuits that can be used to turn the control on and off Do not use these circuits as a safety disconnect Use only the AC line for that purpose I GENERAL INFORMATION The KBWD 15 Pulse Width Modulated PWM DC motor speed control provides excellent dynamic response to load variations The efficient PWM waveform produces an almost pure DC current to the motor form factor lt 1 05 which has several advantages over a conventional SCR control The PWM significantly lowers audible motor noise and provides longer brush life It also produces less motor heating which allows a smaller less costly motor to be used for most applications Another advantage of PWM is higher output voltage which provides increased output speed In addition pulse by pulse current sensing provides short circuit protection A unique feature of the KBWD 15 control is the
14. may be a normal condition for the application 12 X LIMITED WARRANTY For a period of 18 months from date of original purchase KB will repair or replace without charge devices which our examination proves to be defective in material or workmanship This warranty is valid if the unit has not been tampered with by unauthorized persons misused abused or improperly installed and has been used in accordance with the instructions and or ratings supplied The foregoing is in lieu of any other warranty or guarantee expressed or implied and we are not responsible for any expense including installation and removal inconvenience or consequential damage including injury to any person caused by items of our manufacture or sale Some states do not allow certain exclusions or limitations found in this warranty so that they may not apply to you In any event KB s total liability under all circumstances shall not exceed the full purchase price of this unit rev 4 88 KB ELECTRONICS INC 12095 NW 39th Street Coral Springs FL 33065 954 346 4900 Fax 954 346 3377 Outside Florida Call TOLL FREE 800 221 6570 E mail info kbelectronics com www kbelectronics com A40268 Rev B 4 99
15. nce they are marked for SCR controls See table 2 page 5 3 Recheck connections AC line to L1 and L2 armature to A and A use F and F for shunt motor field connections only Note If motor runs in improper direction interchange armature leads 4 Nominal factory trimpot settings are as follows Expressed in of full CW rotation ii SAFETY WARNING PLEASE READ CAREFULLY This product should be installed and serviced by a qualified technician electrician or electrical maintenance person familiar with its operation and the hazards involved Proper installation which includes wiring mounting in proper enclosure fusing or other overcurrent protection and grounding can reduce the chance of electric shocks fires or explosion in this product or products used with this product such as electric motors switches coils solenoids or relays Eye protection must be worn and insulated adjustment tools must be used when working with control under power This product is constructed of materials plastics metals carbon silicon etc which may be a potential hazard Proper shielding grounding and filtering of this product can reduce the emission of radio frequency interference RFI which may adversely affect sensitive electronic equipment If information is required on this product contact our factory It is the responsibility of the equipment manufacturer and individual installer to supply this safety warning to the ultimate user of
16. peed position full counterclockwise 2 Increase setting of MIN trimpot so that motor runs at desired minimum speed 10 B Maximum Speed MAX The MAX trimpot is used to set the maximum voltage of the drive Adjust the MAX trimpot as follows 1 Rotate Main Potentiometer to maximum speed position full clockwise 2 Adjust MAX trimpot setting to desired setting of motor speed Caution Do not exceed rated RPM of motor C Acceleration ACCEL The ACCEL trimpot sets the amount of time it takes the control to reach full output The trimpot is factory set to one 1 second If more rapid acceleration is desired rotate the trimpot counterclockwise Note Rapid ACCEL setting may cause the current limit circuit to activate which will extend the acceleration time For a longer acceleration time rotate ACCEL trimpot clockwise 50 rotation represents approximately seven 7 seconds and full rotation is approximately fifteen 15 seconds D Current Limit CL This trimpot is used to set the maximum amount of DC current that the motor can draw The amount of DC current is directly proportional to the motor torque The CL trimpot is factory set at 150 of the current established by the Plug in Horsepower Resistor selection See table 2 p 5 Readjust the CL trimpot as follows Note The OL indicator will light when the control is in CL 1 Turn CL trimpot to minimum CCW position Be sure proper value Plug in
17. sepower Resistor since they are not correct for PWM controls II MOUNTING The KBWD controls should be mounted on a flat surface and located in an area where it will not be exposed to contaminants such as water metal chips solvents or excessive vibration See fig 2 p 6 for Mechanical Specifications Enclosure When mounting in an enclosure the air space should be large enough to provide adequate ventilation The maximum allowable ambient temperature at full rating is 45 C 113 F Consult factory if more information is required III INITIAL SETUP 1 Install proper size Plug in Horsepower Resistor See table 2 2 Connect the KBWD to a standard 115V 50 60 Hz AC line 3 Follow the recommended supply wire sizes as per table 3 on page 7 5 FIG 2 KBWD 15 MECHANICAL SPECIFICATIONS INCHES mm 6 FIG 3 AC LINE AND ARMATURE CONNECTION 4 Follow the National Electrical Code and other electrical codes that apply 5 Connect control in accordance to AC line and armature connection See fig 3 6 Ground earth The control should not be connected to ground earth since it does not contain a metal chassis or enclosure Attempting to ground control will cause catastrophic failure 7 When using a step down transformer 230 VAC to 115 VAC be sure the VA rating of the transformer is at least 3 times the VA rating of the motor TABLE 3 TERMINAL BLOCK WIRING INFORMATION Terminal Block Des
18. this product SW effective 11 92 This control may contain electronic Start Stop and Enable circuits that can be used to start and stop the control However these circuits are never to be used as safety disconnects since they are not fail safe Use only the AC line for this purpose The input circuits of this control tachometer start stop inhibit enable are not isolated from AC line Be sure to follow all instructions carefully Fire and or electrocution can result due to improper use of this product See Application Note Warning on page 2 1 This product complies with all CE directives pertinent at the time of manufacture Contact factory for detailed installation instructions and Declaration of Conformity Installation of a CE approved RFI filter KBRF 200A KB P N 9945C or equivalent is required Additional shielded motor cable and or AC line cables may be required along with a signal isolator KBSI 240D KB P N 9431 or equivalent iii APPLICATION NOTE WARNING 1 PWM controls are designed with a single power transistor which is wired directly in series with the motor If for some reason this transistor short circuits a runaway condition could occur where the motor will almost instantaneously accelerate to full speed This could cause physical harm to an operator or user of the machinery or equipment on which the control is installed In some cases a proper sized fuse when installed in series with the motor armature w
19. unt Wound motors may be damaged if field remains powered without motor rotating for an extended period of time FIG 4A FULL VOLTAGE FIELD FIG 4B HALF VOLTAGE FIELD TABLE 4 FIELD CONNECTIONS Shunt Wound Motors Only AC Line Voltage VAC Motor Voltage VDC Field Voltage VDC Field Connection 115 90 100 F F 115 90 50 F L1 D Main Potentiometer The control can be operated from a remote potentiometer or from an isolated analog voltage for voltage following i Remote Potentiometer Connect remote potentiometer wires to terminals P1 P2 and P3 so that the high side of the potentiometer connects to P3 the wiper to P2 and the low side to P1 See fig 5 p 9 ii Analog Input An isolated 0 10 VDC analog voltage can also be used to drive the control Note If an isolated signal voltage is not available an optional signal isolator can be installed Model KBSI 240D P N 9431 Connect the isolated input voltage to terminal P2 positive and P1 negative See fig 6 p 9 8 FIG 8 TACHOMETER CONNECTION iii Microprocessor Input An isolated PWM signal from a microprocessor can be used to operate the control The output frequency should be 200 Hz or greater and should be derived from an optocoupler with a transistor or operational amplifier signal output See fig 7 FIG 5 REMOTE POTENTIOMETER CONNECTION FIG 6 ANALOG VOLTAGE CONNECTION FIG 7
Download Pdf Manuals
Related Search