Summary of Contents for Minarik MM23021C
- Page 1 USER’S MANUAL MM23000 Series SCR, Dual Voltage, Adjustable Speed Drives for DC Brush Motors Model MM23021C...
- Page 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. Minarik Corporation and its Divisions 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.
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Page 3: Safety Warnings
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 installation of a master switch in the main power input to stop the drive in an emergency. -
Page 4: Table Of Contents
Contents Safety Warnings Specifications Dimensions Installation Mounting ........... . .3 Heat sinking . - Page 5 Table 3. Minarik Filters ........
- Page 6 Figure 1. MM23021C Dimensions ........2...
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Page 7: Specifications
115 VAC with 230 VAC Model (Amps DC) Applied Applied Style MM23021C 1½ Chassis AC Line Voltage 115 VAC or 230 VAC ±10%, 50/60 Hz, single phase Armature Voltage (115 VAC Input) 0–90 VDC Armature Voltage (230 VAC Input) 0–180 VDC... -
Page 8: Dimensions
TO R Q U E IR C O M P 7.00” 9.80 7.000" 9.800" [178] [249] 1.375 1.375 110V [35] 230V 6.30 [160] 6.300" 6.90 [175] 6.900" 2.455 [62] 2.455" 0.125" 0.125 [3] ALL DIMENSIONS IN INCHES [MILLIMETERS] Figure 1. MM23021C Dimensions... -
Page 9: Installation
Installation Mounting • Drive components are sensitive to electrostatic fields. Avoid direct contact with the circuit board. 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. -
Page 10: Field Output
Installation Field output The field output is for shunt wound motors only. Do not make any connections to F1 and F2 when using a permanent magnet motor. See Table 1 for field output connections. Table 1. Field Output Connections Line Voltage Approximate Connect Motor (VAC) -
Page 11: Connections
Installation Connections ACC EL DECE L M AX SPD M IN SPD TORQUE IR C OM P S P E ED SPEED A D JU S T ADJUST P O T Ω 10K OHM 10 K FIE LD FIELD C O ILS COILS 115 V A C IN P U T 115 VAC INPUT... -
Page 12: Speed Adjust Potentiometer Installation
Installation Speed adjust potentiometer installation Warning Be sure that the potentiometer tabs do not make contact with the potentiometer enclosure. Grounding the input will cause damage to the drive. Install the circular insulating disk between the panel and the 10K ohm speed adjust potentiometer. -
Page 13: Shielding Guidelines
As a general rule, Minarik recommends shielding of all conductors. If it is not practical to shield power conductors, Minarik recommends shielding all logic-level leads. If shielding logic level leads is not practical, the user should twist all logic leads with themselves to minimize induced noise. -
Page 14: Voltage Follower
Installation Voltage follower Instead of using a speed adjust potentiometer, the drive may be wired to follow an analog input voltage signal (0 – 3.5 VDC) that is isolated from earth ground (Figure 4). Connect the signal input (+) to terminal 4. Connect the signal common (–) to terminal 3. Make no connection to 5. -
Page 15: Operation
Operation Warning Change voltage switch settings only when the drive is disconnected from AC line voltage. Make sure both switches are set to their correct position. If the switches are improperly set to a lower voltage position, the motor will not run at full voltage and may cause damage to the transformer. -
Page 16: Startup
Operation Startup 1. Turn the speed adjust potentiometer full counterclockwise (CCW). 2. Apply AC line voltage. 3. Slowly advance the speed adjust potentiometer clockwise (CW). The motor slowly accelerates as the potentiometer is turned CW. Continue until the desired speed is reached. 4. -
Page 17: Inhibit Terminals
Do not ground both ends of the shield. Minarik Corporation offers two accessory plug harnesses for connecting to the INHIBIT terminals: part number 201-0024 [inhibit plug with 18 inches (46 cm) leads]; and part number 201-0079 [inhibit plug with 36 inches (91 cm) leads]. -
Page 18: Decelerating To Minimum Speed
Operation Decelerating to minimum speed The switch shown in Figure 8 may be used to decelerate a motor to a minimum speed. Closing the switch between S1 and S2 decelerates the motor from set speed to a minimum speed determined by the MIN SPD trimpot setting. If the MIN SPD trimpot is set full CCW, the motor decelerates to zero speed when the switch between S1 and S2 is closed. -
Page 19: Dynamic Braking
Operation Dynamic braking Warning For frequent starts and stops, short the inhibit terminals, decelerate to a minimum speed, or apply a dynamic brake to the motor. Do not use any of these methods for emergency stopping. They may not stop a drive that is malfunctioning. Removing AC line power (both L1 and L2) is the only acceptable method for emergency stopping. -
Page 20: Figure 9. Dynamic Brake Connections
Operation INHIBIT INHIBIT PINS PINS Ω 20 OHMS BRAKE BRAKE MOTOR MOTOR Figure 9. Dynamic Brake Connections... -
Page 21: Calibration
Calibration Warning Dangerous voltages exist on the drive when it is powered. 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 can cause serious or fatal injury. -
Page 22: Figure 10. Calibration Trimpot Layout
Calibration D 5 0 1 D 5 0 2 D 5 0 3 S C R 5 0 1 S C R 5 0 2 C 5 0 3 R 5 0 1 T5 0 1 C 5 0 1 M O V 5 0 3 S O 5 0 2 S W 5 0 1... -
Page 23: Minimum Speed (Min Spd)
Calibration 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 to zero speed. To calibrate, turn the speed adjust potentiometer full CCW. Adjust the MIN SPD trimpot until the motor has stopped (for zero speed setting), or is running at the desired minimum speed. -
Page 24: Torque
Although TORQUE LIMIT is set to 120% of drive nameplate current rating, continuous operation beyond this rating may damage the motor. If you intend to operate beyond the rating, contact your Minarik representative for assistance. The TORQUE setting determines the maximum torque for accelerating and driving the motor. -
Page 25: Ir Compensation (Ir Comp)
Calibration IR COMPENSATION (IR COMP) The IR COMP trimpot setting determines the degree to which motor speed is held constant as the motor load changes. It is factory set for optimum motor regulation. To calibrate IR COMP refer to the recommended IR COMP settings in Figure 11, page 22, or use the following procedure: 1. -
Page 26: Acceleration (Accel)
Calibration ACCELERATION (ACCEL) The ACCEL setting determines the time the motor takes to ramp to a higher speed. See Specifications on page 1 for approximate acceleration times. ACCEL is factory set for the fastest acceleration time (full CCW). To set the acceleration time: 1. -
Page 27: Deceleration (Decel)
Calibration DECELERATION (DECEL) The DECEL setting determines the time the motor takes to ramp to a lower speed. See Specifications on page 1 for approximate deceleration times. DECEL is factory set for the fastest deceleration time (full CCW). To set the deceleration time: 1. -
Page 28: Figure 11. Typical Torque And Ir Comp Settings
Calibration 90 VDC MOTORS 3/4 HP 1 HP 1 HP 3/4 HP 1800 RPM 1800 RPM 1800 RPM 1800 RPM 7.5 AMPS 10 AMPS 10 AMPS 7.5 AMPS IR COMP IR COMP IR COMP IR COMP 180 VDC MOTORS 1 1/2 HP 3 HP 3 HP 1 1/2 HP... -
Page 29: Application Notes
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 TOTAL SERIES Resistance... -
Page 30: Adjustable Speeds Using Potentiometers In Series
Application Notes 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. HIGH HIGH Ω... -
Page 31: Independent Adjustable Speeds
Application Notes 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. -
Page 32: Run/Jog Switch
Application Notes 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 single pole, normally closed, momentary operated pushbutton for the JOG pushbutton. -
Page 33: Figure 15. Run/Jog Switch Connection To Inhibit Plug
Application Notes PUSHBUTTON PUSHBUTTON INHIBIT INHIBIT Figure 15. RUN/JOG Switch Connection to Inhibit Plug Ω 10K OHM JOG PUSH BUTTON PUSH BUTTON Figure 16. RUN/JOG Switch Connection to Speed Adjust Potentiometer... -
Page 34: Leader-Follower Application
Application Notes Leader-follower application In this application, use a PCM4 to monitor the speed of the leader motor (Figure 17). The PCM4 isolates the leader motor from the follower drive, and outputs a voltage proportional to the leader motor armature voltage. The follower drive uses this voltage reference to set the speed of the follower motor. -
Page 35: Single Speed Potentiometer Control Of Multiple Drives
Application Notes Single speed potentiometer control of multiple drives Multiple drives can be controlled with a single speed adjust potentiometer using a PCM4 at the input of each drive to provide isolation (Figure 18). Optional ratio potentiometers can be used to scale the PCM4 output voltage, allowing independent control of each drive. -
Page 36: Reversing
Application Notes Reversing A dynamic brake may be used when reversing the motor direction (Figure 19). Use a three pole, three position switch rated for at least the maximum DC armature voltage and maximum braking current. Wait for the motor to stop completely before switching it to either the forward or reverse direction. -
Page 37: Reversing With A Digi-Lok® Controller, Model Dlc600
Figure 20 shows the connection of the reversing circuit to a MM23000 series drive and to a DLC600. Note: Only one DLC option (Optical Encoder or Magnetic Pickup) may be used at a time. MM23021C MM23021C Drive DRIVE Dynamic DYNAMIC BRAKE Brake Resistor... -
Page 38: Troubleshooting
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 consistent with the motor ratings. For additional assistance, contact your local Minarik distributor, or the factory direct: (800) MINARIK (phone) or (800) 394-6334 (fax). - Page 39 Troubleshooting Problem Possible Suggested Causes Solutions Line fuse blows. 1. Line fuse is the wrong 1. Check that the line fuse size. is correct for the motor size. 2. Motor cable or armature 2. Check motor cable and is shorted to ground. armature for shorts.
- Page 40 Troubleshooting Problem Possible Suggested Causes Solutions Line fuse does not blow, 1. Speed adjust pot or 1. Increase the speed adjust but the motor does not run. reference voltage is set potentiometer setting or to zero speed. reference voltage. 2. INHIBIT terminals are 2.
- Page 41 Troubleshooting Problem Possible Suggested Causes Solutions Motor runs too fast. 1. MAX SPD and MIN 1. Calibrate MAX SPD SPD are set too high. and MIN SPD. 2. Motor field connections 2. Check motor field are loose (shunt wound connections. motors only).
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Page 42: Ce Compliance
CE Compliance Minarik Corporation hereby certifies that its MM23000C series drives have been approved to bear the “CE” mark provided the conditions of approval have been met by the end user. The MM23000C series has been tested to the following... -
Page 43: Line Filters
CE Compliance Line filters Minarik requires the Corcom ® line filters listed below. Table 2. Corcom ® Filters Corcom ® Filter Nameplate Current of Motor Wired to the Drive Part Number 0 to 4 amps 6VV1 4.1 to 13 amps... -
Page 44: Armature Filters
If the end-user is not using a CE-approved motor, a second filter, part no. CExxMM, must be used on the armature. XX = rated current of the filter. Minarik Filters are listed below. Table 3. Minarik Filters Nameplate Current of... - Page 45 The end user must use the filters listed in this section to comply with CE. The OEM may choose to provide alternative filtering that encompasses the Minarik drive and other electronics within the same panel. The OEM has this liberty because CE is a machinery directive.
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Page 46: Functional Diagrams
Functional Diagrams... -
Page 47: Replacement Parts
Replacement Parts Replacement parts are available from Minarik Corporation and its distributors for this 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 0.01Ω, 5 W Resistor... - Page 48 NOTES...
- Page 49 Unconditional Warranty A. Warranty - Minarik Corporation (referred to as “the Corporation”) warrants that its products will be free from defects in workmanship and material for twelve (12) months or 3,000 hours, whichever comes first, from date of manufacture thereof. Within this warranty...
- Page 50 . m i 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...
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