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Summary of Contents for Minarik MM101U
- Page 1 USER’S MANUAL Models: MM101U MM201U SCR, Adjustable Speed Drives for DC Brush Motors...
- Page 2 Minarik Corporation All rights reserved. No part of this manual may be reproduced or transmitted in any form without written permission from Minarik Corporation. The information and technical data in this manual are subject to change without notice. Minarik Corporation and its...
- Page 3 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.
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Page 4: Table Of Contents
Contents Specifications Dimensions Installation Mounting ..........3 Wiring . - Page 5 Contents TORQUE LIMIT (TORQUE) ......21 ACCELERATION (ACCEL) ......22 DECELERATION (DECEL) .
- Page 6 Illustrations Figure 1. Dimensions ........2 Figure 2.
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Page 7: Specifications
Max. Input Input Armature Voltage Current Current Model (AC) (Amps AC) (Amps DC) Range Style MM101U 1/4 - 1 Chassis MM201U 1/2 - 2 Chassis AC Line Voltage Tolerance ±10%, 50/60 Hz, single phase Armature Voltage MM101U 0 – 90 VDC MM201U 0 –... -
Page 8: Dimensions
Dimensions Figure 1. Dimensions... -
Page 9: Installation
Installation Mounting Warning Do not install, rewire, or remove this control with power applied. Doing so may cause fire or serious injury. Make sure you have read and understood the Safety Warnings before attempting installation. The chassis must be earth grounded. Use a star washer beneath the head of at least one of the mounting screws to penetrate the anodized chassis surface and to reach bare metal. -
Page 10: Wiring
Installation Wiring Warning Do not install, remove, or rewire this equipment with power applied. Failure to heed this warning may result in fire, explosion, or serious injury. Circuit potentials are at 115 or 230 VAC above ground. To prevent the risk of injury or fatality, avoid direct contact with the printed circuit board or with circuit elements. -
Page 11: 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 leads is not practical, the user should twist all logic leads with themselves to minimize induced noise. -
Page 12: Speed Adjust Potentiometer Connections
Installation Speed adjust potentiometer connections 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 mounting panel and the 10K ohm speed adjust potentiometer (see Figure 2). Mount the speed adjust potentiometer through a 0.38-inch (10 mm) hole with the hardware provided. -
Page 13: Heat Sinking
No additional heat sinking is required. Line fusing MM101U Series drives have a 15-amp line fuse mounted on fuse holder 501 (FU501). MM201U Series drives have two 15- amp line fuses mounted on fuse holders 501 and 502 (FU501 and FU502). -
Page 14: Connections
(PCB) as shown in Figure 3 (page 10). Motor connections Minarik drives supply motor voltage from A1 and A2 terminals. It is assumed throughout this manual that, when A1 is positive with respect to A2 , the motor will rotate clockwise (CW) while looking at the output shaft protruding from the front of the motor. -
Page 15: Field Output
Installation Connect a DC motor to terminals 8 (A1) and 9 (A2) as shown in Figure 3. Ensure that the motor voltage rating is consistent with the drive’s output voltage. Field output Warning The field output is for shunt wound motors only. Do not make any connections to F1 and F2 when using a permanent magnet motor. -
Page 16: Figure 3. Power, Fuse And Motor Connections
Installation WARNING DO NOT APPLY 230 VAC IF USING MM101U SERIES DRIVE NOTES: 1. DO NOT CONNECT FIELD OUTPUT IF USING A PERMANENT-MAGNET MOTOR. REFER TO TABLE 2 (PAGE 9) FOR ALTERNATE FIELD CONNECTIONS. Figure 3. Power, Fuse and Motor Connections... -
Page 17: Voltage Follower Connection
8. Make no connection to teminal 10. A potentiometer can be used to scale the analog input voltage. An interface device, such as Minarik model PCM4, may be used to scale and isolate an analog input voltage. Figure 4. Voltage Follower Connections... -
Page 18: Operation
Operation Warning Dangerous voltages exist on the drive when it is powered. BE ALERT. High voltages can cause serious or fatal injury. Before applying power • Verify that no conductive material is present on the printed circuit board. • Verify that the AC supply is properly balanced. Drive startup and shutdown 1. -
Page 19: To Shut Down The Drive
Removing AC line power (both L1 and L2) is the only acceptable method for emergency stopping. Minarik strongly recommends the installation of an emergency stop switch for chassis drives. The switch contacts should be rated at a minimum of 250 volts and... -
Page 20: Line Stopping
Operation Line stopping When AC line voltage is applied to the drive, the motor accelerates to the set speed. When AC line voltage is removed, the motor coasts to a stop. Line stopping (removing AC line voltage) is recommended for stopping in emergency situations only. -
Page 21: Dynamic Braking
Operation Dynamic braking Warning Wait for the motor to completely stop before switching it back to RUN. This will prevent high armature currents from damaging the motor or drive. Dynamic braking may be used to rapidly stop a motor (Figure 6, page 16). For the RUN/BRAKE switch, use a double-pole, double-throw switch rated for at least the maximum DC armature voltage and maximum braking current. -
Page 22: Figure 6. Dynamic Brake Connection
Operation Figure 6. Dynamic Brake Connection... -
Page 23: Calibration
BE ALERT. High voltages can cause serious or fatal injury. MM101U and MM201U Series drives have six user-adjustable trimpots. Each drive is factory calibrated to its maximum current rating. Readjust the calibration trimpot settings to accommodate lower current rated motors. -
Page 24: Figure 7. Calibration Trimpot Layout
Calibration REGULATION TORQUE LIMIT DECELERATION (I.R. COMP) MAXIMUM MINIMUM ACCELERATION SPEED SPEED Figure 7. Calibration Trimpot Layout... -
Page 25: Calibration Procedure
Calibration Calibration procedure Calibrate the drive using the following procedure: 1. Set the MIN SPD, MAX SPD, ACCEL and DECEL trimpots to zero (full CCW). 2. Set the TORQUE LIMIT trimpot to maximum (full CW). 3. Set the IR COMP trimpot to midrange (approximate 12 o’clock position). -
Page 26: Maximum Speed (Max Spd)
Calibration 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 trimpot full CCW. Set the speed adjust potentiometer or reference voltage to maximum. -
Page 27: Torque Limit (Torque)
Although TORQUE LIMIT is set to 120% of maximum drive current rating, continuous operation beyond that 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 28: 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 29: 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 30: Application Notes
Application Notes FWD-STOP-REV switch Use a single-pole, three-position switch with a single speed adjust potentiometer to coast to a stop between reversals (Figure 8). Set the switch to the center position to decelerate the motor to a stop. The switch contacts should be rated at a minimum of 250 volts and 150% to 200% of motor nameplate current. -
Page 31: Reversing With Dynamic Braking
Application Notes Reversing with dynamic braking A dynamic brake may be used when reversing the motor direction (Figure 9). 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 32: Reversing With A Dlc600
DIGI-LOK is switched back to the drive. Figure 10 shows the connection of the reversing circuit to an MM101U/MM201U series drive and a DLC600. NOTE: USE ONLY ONE FEEDBACK SOURCE (OPTICAL SENSOR OR MAGNETIC PICKUP) AT A TIME... -
Page 33: Independent Adjustable Speeds
Application Notes Independent Adjustable Speeds Connect two speed adjust potentiometers with a single pole two position switch to select between two independent speeds shown in the forward direction (Figure 11). The speed adjust potentiometers can be mounted at two separate operating stations. -
Page 34: 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 12 shows a connection for fixed high and low speed adjust potentiometers. -
Page 35: Multiple Fixed Speeds
Application Notes Multiple fixed speeds Replace the speed adjust potentiometer with series resistors with a total series resistance of 10K ohms (Figure 13). Add a single pole, multi-position switch with the correct number of positions for the desired number of fixed speeds. Figure 13. -
Page 36: 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 as shown in Figure 14. -
Page 37: Leader-Follower Application
Application Notes Leader-follower application In this application, use a PCM4 to monitor the speed of the leader motor (Figure 15). 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 38: 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 16). Optional ratio potentiometers can be used to scale the PCM4 output voltage, allowing independent control of each drive. -
Page 39: Troubleshooting
• Verify that there are no short circuits or grounded connections. • Check that the drive’s rated armature outputs are consistent with the motor ratings. For additional assistance, contact your local Minarik distributor, or the factory direct: Phone: (800) MINARIK (646-2745) or Fax: (800) 394-6334... - Page 40 “jams”. See page 21 for information on adjusting the TORQUE trimpot. 4. Field circuit is shorted. 4. Send in drive to Minarik repair department. Line fuse does not 1. Speed adjust 1. Increase speed adjust blow, but the motor...
- Page 41 Symptom Possible Suggested Causes Solutions Line fuse does not 3. Drive is overloaded. 3. Verify that the motor is blow, but the motor not jammed. Increase does not run (cont.) TORQUE LIMIT setting (page 21). 4. Drive is not receiving 4.
- Page 42 Troubleshooting Symptom Possible Suggested Causes Solutions Motor pulsates or 1. IR COMP is set too 1. Adjust the IR COMP surges under load high. setting slightly CCW until the motor speed stabilizes (page 20). 2. Control is in current 2. Check that motor is of limit mode.
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Page 43: Replacement Parts
Troubleshooting Replacement Parts Replacement parts are available from Minarik Corporation and its distributors for this drive series. Table 4. Replacement Parts REFERENCE PART NO. DESCRIPTION 073-0003 W06M 1 AMP FULL WAVE BRIDGE C1 - C2 011-0027 220 MFD 16 VDC... - Page 44 2.2 K OHM 1/4 WATT 030-0026 47K OHM 1/4 WATT 030-0027 68 K OHM 1/4 WATT 030-0038 2.2 MEG OHM 1/4 WATT 5% R25-R26 030-0036 1 MEG OHM 1/4 WATT (MM101U) R25-R26 030-0038 2.2 MEG OHM 1/4 WATT 5% (MM201U)
- Page 45 Troubleshooting REFERENCE PART NO. DESCRIPTION R27-R28 030-0001 22 OHM 1/4 WATT R29-R30 031-0002 10 OHM 1/2 WATT 10% SCR1-SCR2 072-0017 S6020L SCRF IGT 3M OR LESS T 230-0054 DST-2-20 115/230:20V TRANSFORMER Z 071-0025 IN4733 5.1 VOLT ZENER DIODE 202-0003 POTENTIOMETER KIT CONTENTS 1 EA 10K OHM Potentiometer, 5W, 5% TOL 120-0009 1 EA 3/8-32 X 1/2 NUT...
- Page 46 Notes...
- Page 47 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 period,...
- Page 48 901 East Thompson Avenue Glendale, California 91201-2011 Tel: (800) MINARIK (646-2745) Fax: (800) 394-6334 www.minarikcorp.com Document Number 250-0089, Revision 4 Printed in the U.S.A – 5/01 $12.00 North America, $13.00 Outside North America...
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