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The Model SL15U Minarik adjustable speed control is a full wave,
solid state device that is designed to control and vary the speed of
Bodine 1/70th and 1/50th HP, 115 VDC shunt wound motors.  The
control has choke/capacitor filtering to assure the controlled motor
will be extra quiet, smooth and cool running.  In a typical application
2% base speed regulation is provided with the help of temperature,
line voltage, and IR compensation.  The control features a speed
range of 25:1, adjustable IR compensation, and a maximum speed
adjustment to limit high speed operation.  The Model SL15U Minarik
adjustable speed control is a U.L. (Underwriters Laboratories)
recognized component, File E35603.

1

General Information

Содержание SL-15U

Страница 1: ...User s Manual SL 15U Adjustable Speed Control for Bodine Shunt Wound 1 70 and 1 50 HP 115 VDC Motors...

Страница 2: ...without notice Minarik Corporation 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 f...

Страница 3: ...hnician install adjust and service this equipment Follow the National Electrical Code and all other applicable electrical and safety codes including the provisions of the Occupational Safety and Healt...

Страница 4: ...ment 9 Standard Calibration 11 Application Notes 14 Speed Adjustment 15 Adjustable Maximum Speed 16 Multiple Fixed Speeds 17 Adjustable Speeds in Two or More Non Overlapping Speed Ranges 18 Multiple F...

Страница 5: ...c Braking using a Toggle Switch 30 Run Stop Dynamic Braking using a Relay 31 Reversing with Dynamic Braking Circuits 33 Reversing with Dynamic Braking using a Rotary Switch 33 Reversing with Dynamic B...

Страница 6: ...eld Weakening Resistor for High Speed Range 21 Figure 10 Run Stop Using Normally Closed Contacts 22 Figure 11 Run Stop Using Normally Open Contacts 23 Figure 12 Reversing with Toggle Switch 25 Figure...

Страница 7: ...olled motor will be extra quiet smooth and cool running In a typical application 2 base speed regulation is provided with the help of temperature line voltage and IR compensation The control features...

Страница 8: ...tor Filtering Temperature Compensation 2 Base Speed Regulation Typical Application Maximum Speed Adjustment Adjustable IR Compensation Line Starting and Stopping Line Voltage Compensation Full Wave Ar...

Страница 9: ...aximum Input current 0 9 Ampheres Output Armature Voltage 0 115 VDC Output Armature Current 0 25 Amperes Output Field Voltage 100 VDC Output Field Current 0 2 Amperes Weight 8 0 Ounces Ambient Tempera...

Страница 10: ...4 Dimensional Data SO1 2 625 67 3 000 76 2 0 1875 5 4 125 105 4 500 114 REG P3 MAX SPD P2 Figure 1 Maximum Speed Regulation Trimpot Locations ALL DIMENSIONS IN INCHES MILLIMETERS...

Страница 11: ...POTENTIOMETER CW GRAY BROWN VIOLET SO1 PL1 ARMATURE FIELD 115 VAC 50 60 HZ FUSE WITH 1 5 AMP QUICK ACTING FUSE BLK WHT WHITE neutral hot BLUE YELLOW RED 1 50 HP OR LESS 115 VDC SHUNT WOUND MOTOR Figur...

Страница 12: ...insulator disc between the pot and the inside of the panel The lock washer is placed between the outside of the panel and the lock nut Mount the chassis to appropriate subplates using the four threade...

Страница 13: ...rth ground Unless an isolation transformer is used circuit components are at a potential of 115 volts above ground Please refer to Safety Precautions on page i before installing 1 Connect the speed ad...

Страница 14: ...ect the control The motor may be started and stopped with the power line at any speed setting on the speed adjust pot The motor coasts to a stop when the power line is disconnected If dynamic braking...

Страница 15: ...the circuitry or allowing contact with any dangerous or fatal voltages Dangerous voltages exist on the printed circuit board Contact with components and or printed circuitry could cause serious injury...

Страница 16: ...speed to be adjusted between 75 to 120 of motor name plate rated speed when the speed adjust knob is set at maximum REGULATION IR COMPENSATION Regulation is obtained by circuitry which raises the arm...

Страница 17: ...han 2500 RPM If maximum speed is not satisfactory if control has been repaired or if the user wants to make any changes follow the procedure listed below 1 Disconnect the power line 2 Set the speed ad...

Страница 18: ...ust the MAXIMUM SPEED trim pot for approximately 2500 RPM motor speed at no load 8 Set the speed adjust knob for approximately 700 RPM at no load Adjust the REGULATION trim pot to obtain 700 RPM at fu...

Страница 19: ...13 Figure 3 Maximum Speed and Regulation Trimpot Locations MAXIMUM SPEED REGULATION IR COMP Calibration...

Страница 20: ...es no responsibility for the use of any circuitry described and makes no representation that they are free from patent infringement Application Notes The components shown in the following circuitry sh...

Страница 21: ...l resistance path must be maintained between the gray and violet leads b Any replacement resistors or potentiometers must be capable of carrying 10 milliamperes c The three speed adjust circuit leads...

Страница 22: ...iable or a fixed maximum speed see Figure 4 below This is useful in applications where a fast return to the home position is desired after certain operations have been accomplished at slower adjustabl...

Страница 23: ...the desired number of fixed speeds and the same number of resistors with a total series resistance of 6K Ohms to replace speed adjust pot P1 See Figure 5 below Multiple Fixed Speeds BROWN GRAY VIOLET...

Страница 24: ...ries resistance must be 6K Ohms and a multi position switch Illustrated is a connection diagram for two speed control with high and low speed adjust pots See Figure 6 below Adjustable Speeds in Two or...

Страница 25: ...o start the motor running If only a grounded signal is available it can be converted to an ungrounded floating signal with a Minarik PCM4 Process Control Module See Figure 8 page 20 External Signal Co...

Страница 26: ...BROWN GRAY VIOLET CW PL1 1K OHM To Ungrounded DC Floating Signal 6K OHM SPEED ADJUST POTENTIOMETER P1 BROWN GRAY VIOLET PL1 CW CW EACH POT 12K OHM Figure 8 External Signal Control Figure 7 Two Full Ra...

Страница 27: ...15U field power supply which lowers the voltage to the motor field winding This lowering of the motor field voltage weakens the motor field and allows the motor top speed to increase to 3150 RPM See F...

Страница 28: ...or will coast to a stop This method is desirable when dynamic braking is not needed with applications where frequent starts and stops are required and has the advantage of not having to switch the AC...

Страница 29: ...will coast to a stop This method is desirable when dynamic braking is not needed with applications where frequent starts and stops are required and has the advantage of not having to switch the AC pow...

Страница 30: ...and to disconnect and reconnect the armature circuit IMPORTANT Plug reversing the motor not allowing the motor to come to a stop before reversing will cause excessively high currents to flow in the a...

Страница 31: ...stopped When the toggle switch is actuated in one direction the motor will run forward When the toggle switch is moved back to the center position the motor coasts to a stop When the toggle switch is...

Страница 32: ...ntrol low voltage relay coils are used In operation power is applied to the SL15U control and the appropriate voltage to L1 and L2 When PB1 is actuated the motor will run FORWARD When PB2 is actuated...

Страница 33: ...armature current to a sufficient value to supply adequate output shaft torque Braking is accomplished by disconnecting the armature from the DC power while leaving the field connected and shorting the...

Страница 34: ...the CEMF is also zero and the motor has been dynamically braked to a stop The speed of braking is controlled by the braking current limiting resistor s resistance The lower the resistance the greater...

Страница 35: ...ng with gearmotors connected to inertial type loads Forces can be developed which may be destructive to the gearing IMPORTANT Dynamic braking is only for fast stopping and NOT for holding a load Dynam...

Страница 36: ...o the control When the toggle switch is switched to RUN position the motor starts running When the toggle switch is switched to BRAKE position the motor is dynamically braked to a stop See Figure 14 R...

Страница 37: ...the Run and Brake pushbuttons are to be located remotely from the control a low voltage relay coil is used In operation power is applied to the SL15U control and the appropriate voltage to L1 and L2 W...

Страница 38: ...32 BLUE YELLOW RED FIELD ARMATURE PL1 FR STOP L1 RUN RUN RUN L2 JUMPER WIRE Figure 15 Run Stop Dynamic Braking using a Relay Dynamic Braking Circuit Cautions...

Страница 39: ...ry switch is switched to FORWARD the motor starts running in one direction When the rotary switch is switched to BRAKE the motor is dynamically braked to a stop When the rotary switch is switched to R...

Страница 40: ...34 BLUE YELLOW RED ARMATURE PL1 FIELD 1 2 3 JUMPER WIRE 1 FWD 2 BRAKE 3 REV Figure 16 Rotary Switch Reversing with Dynamic Braking Reversing with Dynamic Braking Circuits...

Страница 41: ...Reverse pushbuttons are to be located remotely from the control low voltage relay coils are used In operation power is applied to the SL15U control and the appropriate voltage to L1 and L2 When PB1 i...

Страница 42: ...UE YELLOW RED FIELD ARMATURE PL1 FR RR FR RR FR RR RR FR REV FWD REV RELAY FWD RELAY FR JUMPER WIRE L1 L2 RR FR Figure 17 Reversing with Dynamic Braking using Relays Reversing with Dynamic Braking Cir...

Страница 43: ...r allow limit switches to deactivate DYNAMIC BRAKING CIRCUIT CAUTIONS Care must be taken when using dynamic braking with gearmotors connected to inertial type loads Forces can be developed which may b...

Страница 44: ...is in the center position the motor is STOPPED When the toggle switch is actuated in one direction the motor runs FORWARD until the limit switch is actuated and the motor stops When the toggle switch...

Страница 45: ...39 BLUE YELLOW RED FIELD ARMATURE PL1 LS1 LS2 FWD REV Figure 18 Toggle Switch Reversing with Limit Switches Limit Switch Circuits...

Страница 46: ...used In operation power is applied to the SL15U control and the appropriate voltage to L1 and L2 When PB1 is actuated the motor will run FORWARD until the limit switch is actuated and the motor dynami...

Страница 47: ...BLUE YELLOW RED FIELD ARMATURE PL1 FR RR FR RR FR RR FR RR RR FR REV FWD REV RELAY FWD RELAY FR JUMPER WIRE L1 L2 LS1 LS2 RR Figure 19 Relay Reversing Braking with Limit Switches Limit Switch Circuit...

Страница 48: ...eding check the following 1 Be sure the power line is the same voltage as that listed on the control nameplate 2 Check to see that the line fuse is of the same value as shown on the control nameplate...

Страница 49: ...check the following A Transient suppressor DAS may be shorted B One or more of the diodes D2 D3 D4 or D5 may be shorted 1 Disconnect the motor from the control 2 Across each of the diodes resistance...

Страница 50: ...y power Motor should run at full speed without blowing the fuse 2 Motor armature or motor cable may be shorted or grounded Disconnect the motor cable An ohmmeter reading on the motor cable armature co...

Страница 51: ...e fuse does not blow but the motor will not run 1 The speed control potentiometer P1 may be open 2 The rectifier SCR may be defective 3 A Transistor Q1 Q2 or Q3 may be defective 4 The filter choke X1...

Страница 52: ...0 1 MFD 500 VOLT D1 071 0012 1 AMP 600 VDC SILICON DIODE D3 D5 071 0007 3 AMP 600 VDC SILICON DIODE DAS 075 0002 TRANSIENT SUPPRESSOR P1 120 0006 6K OHM 5 WATT POT P2 121 0020 20K OHM 1 4 WATT POT P3...

Страница 53: ...R5 R7 031 0040 56K OHM 1 2 WATT R8 R9 031 0047 33K OHM 1 2 WATT R10 R11 031 0032 820 OHM 1 2 WATT R12 031 0043 15K OHM 1 2 WATT R13 031 0012 47 OHM 1 2 WATT R14 032 0018 3 OHM 5 WATT SO1 164 0054 9 TE...

Страница 54: ...48 NOTES...

Страница 55: ...C Limitations of Liability In the event of any claim for breach of any of the Corporation s obligations whether express or implied and particularly of any other claim or breech of warranty contained i...

Страница 56: ...on Avenue Glendale CA 91201 2011 Tel 800 MINARIK or 800 646 2745 Fax 800 394 6334 www minarikcorp com Document Number 250 0009 Revision 6 Printed in the U S A 5 01 North America 10 00 Outside North Am...

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