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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 for high and low speed adjust potentiometers.

CW

5K

Ω

5K

Ω

CW

LOW

SPEED

HIGH

SPEED

S1

S2

S3

Figure 13. Adjustable Fixed Speeds Using Potentiometers in Series

Application Notes

S1

LOW

SPEED

HIGH

SPEED

CW

CW

5K OHM

5K OHM

S2

S3

All manuals and user guides at all-guides.com

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Содержание MM23000C Series

Страница 1: ...USER S MANUAL MM23000 Series SCR Dual Voltage Adjustable Speed Drives for DC Brush Motors Model MM23021C All manuals and user guides at all guides com a l l g u i d e s c o m...

Страница 2: ...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 for a given purpose Mina...

Страница 3: ...rrent 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 Minarik strongly recommends the...

Страница 4: ...g guidelines 7 Voltage follower 8 Operation 9 Before applying power 9 Startup 10 Line starting and line stopping 10 Inhibit terminals 11 Decelerating to minimum speed 12 Dynamic braking 13 Calibration...

Страница 5: ...ustable speeds 25 RUN JOG switch 26 Leader follower application 28 Single speed potentiometer control of multiple drives 29 Reversing 30 Reversing with a DIGI LOK controller model DLC600 31 Troublesho...

Страница 6: ...Figure 11 Typical TORQUE and IR COMP Settings 22 Figure 12 Multiple Fixed Speeds 23 Figure 13 Adjustable Fixed Speeds Using Potentiometers in Series 24 Figure 14 Independent Adjustable Speeds 25 Figur...

Страница 7: ...t be isolated 0 3 5 VDC Field Voltage 115 VAC Input 50 VDC F1 to L1 100 VDC F1 to F2 Field Voltage 230 VAC Input 100 VDC F1 to L1 200 VDC F1 to F2 Max Field Current 1 ADC Input Impedance S1 to S2 100K...

Страница 8: ...0 SW502 IL501 P504 P505 CL MOV501 L1 L2 F1 T501 MOV503 115 230 SW501 F2 SCR501 D501 R 5 02 SO502 METER D502 A2 M O V5 0 2 D503 A1 IR COMP P506 IC501 C502 S1 C503 IC502 C501 R501 SCR502 110V 230V A1 A2...

Страница 9: ...ng excessive vibration of the drive Mount drive with its board in either a horizontal or vertical plane Four 0 19 inch 5 mm wide slots in the chassis accept 8 pan head screws Fasten either the large b...

Страница 10: ...magnet motor See Table 1 for field output connections Table 1 Field Output Connections Line Voltage Approximate Connect Motor VAC Field Voltage VDC Field To 115 50 F1 and L1 115 100 F1 and F2 230 100...

Страница 11: ...D JU S T P O T 10 K FIE LD C O ILS Figure 2 Chassis Drive Connections to Heat Sink Terminal Boards Connections 5 Installation NOTE Do not connect field coils if using a permanent magnet motor SPEED A...

Страница 12: ...the speed adjust potentiometer wire to avoid picking up unwanted electrical noise If potentiometer leads are longer than 18 inch 457 mm use shielded cable POT TAB ASSIGNMENTS WIPER CW CCW SPEED ADJUS...

Страница 13: ...ound 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 it may be necessary to add AC line filtering dev...

Страница 14: ...4 Connect the signal common to terminal 3 Make no connection to 5 If the maximum signal is greater than 3 5V use the speed adjust pot as a trimmer See Figure 5 for connections With the signal at maxi...

Страница 15: ...01 INPUT VOLTAGE SELECT SWITCH SW501 ARMATURE VOLTAGE SELECT SWITCH SW502 Warning Change voltage switch settings only when the drive is disconnected from AC line voltage Make sure both switches are se...

Страница 16: ...move AC line voltage from the drive to coast the motor to a stop Line starting and line stopping Line starting and line stopping applying and removing AC line voltage is recommended for infrequent sta...

Страница 17: ...ble is used ground only one end of the shield to earth ground Do not ground both ends of the shield Minarik Corporation offers two accessory plug harnesses for connecting to the INHIBIT terminals part...

Страница 18: ...ng If the MIN SPD trimpot is set full CCW the motor decelerates to zero speed when the switch between S1 and S2 is closed The DECEL trimpot setting determines the rate at which the drive decelerates B...

Страница 19: ...can produce high torque This may cause damage to motors especially gearmotors that are not properly sized for the application Dynamic braking may be used to rapidly stop a motor Figure 9 For the RUN B...

Страница 20: ...14 Operation A2 A1 MOTOR 20 40W INHIBIT PINS RUN BRAKE Figure 9 Dynamic Brake Connections INHIBIT PINS A2 A1 40W 20 OHMS BRAKE RUN MOTOR All manuals and user guides at all guides com...

Страница 21: ...decrease with counterclockwise CCW rotation Use a non metallic screwdriver for calibration Each trimpot is identified on the printed circuit board Warning Dangerous voltages exist on the drive when it...

Страница 22: ...RQUE P503 180 90 SW502 IL501 P504 P505 CL MOV501 L1 L2 F1 T501 MOV503 115 230 SW501 F2 SCR501 D501 R 5 0 2 SO502 METER D502 A2 M O V 5 0 2 D503 A1 IR COMP P506 IC501 C502 S1 C503 IC502 C501 R501 SCR50...

Страница 23: ...speed 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 set the MAX SPD...

Страница 24: ...e power disconnected from the drive connect a DC ammeter in series with the armature 2 Set the TORQUE trimpot to minimum full CCW 3 Set the speed adjust potentiometer to maximum speed full CW 4 Carefu...

Страница 25: ...ed adjust potentiometer until the motor runs at midspeed without load for example 900 RPM for an 1800 RPM motor A hand held tachmoter may be used to measure motor speed 3 Load the motor armature to it...

Страница 26: ...iometer full CCW The motor should run at minimum speed 2 Turn the speed adjust potentiometer full CW and measure the time it takes the motor to go from minimum to maximum speed 3 If the time measured...

Страница 27: ...djust potentiometer full CW The motor should run at maximum speed 2 Turn the speed adjust potentiometer full CCW and measure the time it takes the motor to go from maximum to minimum speed 3 If the ti...

Страница 28: ...4 HP 1800 RPM 7 5 AMPS TQ IR COMP TQ IR COMP 1 1 2 HP 1800 RPM 7 5 AMPS 1 HP 1800 RPM 5 AMPS 90 VDC MOTORS 180 VDC MOTORS 1 HP 1800 RPM 10 AMPS TQ IR COMP TQ IR COMP TQ IR COMP TQ IR COMP TQ IR COMP T...

Страница 29: ...nce 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 R4 Total Series Resistance 10K Ohm R1 R2 R3 S3 S2 S1 Figur...

Страница 30: ...ometers in series with a total series resistance of 10K ohms Figure 13 shows a connection for high and low speed adjust potentiometers CW 5K 5K CW LOW SPEED HIGH SPEED S1 S2 S3 Figure 13 Adjustable Fi...

Страница 31: ...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 S3 S2 S1 SPEED 2 20K C...

Страница 32: ...the inhibit plug as shown in Figure 15 The motor coasts to a stop when the RUN JOG switch is set to JOG Press the JOG pushbutton to jog the motor Return the RUN JOG switch to RUN for normal operation...

Страница 33: ...G PUSH BUTTON 10K S1 S2 S3 Figure 16 RUN JOG Switch Connection to Speed Adjust Potentiometer Figure 15 RUN JOG Switch Connection to Inhibit Plug JOG PUSHBUTTON RUN JOG S3 S2 S1 RUN JOG PUSH BUTTON JOG...

Страница 34: ...The follower drive uses this voltage reference to set the speed of the follower motor An optional ratio potentiometer may be used to scale the PCM4 output voltage Leader Drive A1 A2 Motor 9 8 7 TB501...

Страница 35: ...t control of each drive Motor B Motor A A2 A1 S1 S2 Drive B A2 A1 S1 S2 Drive A ratio pot B optional 10K ratio pot A optional 10K 6 2 TB502 TB501 1 7 8 PCM4 TB502 TB501 1 2 7 8 6 PCM4 10K Figure 18 Si...

Страница 36: ...urrent Wait for the motor to stop completely before switching it to either the forward or reverse direction See the Dynamic braking section page 13 for recommended dynamic brake resistor sizes A1 A2 F...

Страница 37: ...es drive and to a DLC600 Note Only one DLC option Optical Encoder or Magnetic Pickup may be used at a time Figure 20 Reversing with a DLC600 Application Notes S3 DLC 600 Inhibit Leads C IN Common Sign...

Страница 38: ...o short circuits or grounded connections 6 Check that the voltage selection switch settings match the AC line and output voltages 7 Check that the drive s rated armature and field outputs are consiste...

Страница 39: ...spikes i e reversing 1 Check that the line fuse is correct for the motor size 2 Check motor cable and armature for shorts 3 Add a blower to cool the drive components decrease TORQUE settings or resiz...

Страница 40: ...is not receiving AC line voltage 6 Motor is not connected MIN SPD setting is too high Motor connections to A1 and A2 are reversed 1 Increase the speed adjust potentiometer setting or reference voltage...

Страница 41: ...too high 2 Motor bouncing in and out of current limit 1 Calibrate MAX SPD and MIN SPD 2 Check motor field connections 1 Increase MAX SPD setting 2 Increase IR COMP setting 3 Increase TORQUE setting 4...

Страница 42: ...Compliance allows Minarik s MM23000C series to bear the CE mark The end user as described herein falls into one of two categories 1 The Consumer will deploy a stand alone unit as an integral yet exter...

Страница 43: ...1 1 microFarads line to line R 330Kohms Rated current 1 4 times maximum DC motor current Filter type Balanced 2 section The line filters should be wired to the AC line within 0 25 meters of the drive...

Страница 44: ...ired to the Drive Part Number 0 to 4 amps CE4MM 4 1 to 13 amps CE20MM The filters listed above are Real Pole Balanced Pi 3 pole filters If the exact filter is not available the specifications are as f...

Страница 45: ...it his machine for CE approval Thus no component must necessarily meet CE within the machine as long as the OEM takes the necessary steps to guarantee the machine does meet CE By the same token even i...

Страница 46: ...40 Functional Diagrams Figure 21 MM23000 Series Block Diagram All manuals and user guides at all guides com a l l g u i d e s c o m...

Страница 47: ...his drive series Table 3 Replacement Parts Model No Symbol Description Minarik P N MM23021C SCR501 502 S8025L SCR 072 0042 D501 503 800 V 20 A Diode 071 0041 R501 0 01 5 W Resistor 032 0129 T501 3FD 2...

Страница 48: ...NOTES 42 All manuals and user guides at all guides com...

Страница 49: ...ity In the event of any claim for breech of any of the Corporation s obligations whether express or implied and particularly of any other claim or breech of warranty contained in Paragraph A or of any...

Страница 50: ...n a r i k d r i v e s c o m 14300 De La Tour Drive South Beloit IL 61080 Phone 800 MINARIK 646 2745 Fax 815 624 6960 Document Number 250 0086 Revision 3 Printed in the U S A December 2005 All manuals...

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