Minarik RG300 Series User Manual
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Minarik RG300 Series User Manual

Scr, adjustable speed, regenerative drives for dc brush motors
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USER'S MANUAL
RG300 and RG400 Series
SCR, Adjustable Speed, Regenerative Drives
for DC Brush Motors

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Summary of Contents for Minarik RG300 Series

  • Page 1 USER’S MANUAL RG300 and RG400 Series SCR, Adjustable Speed, Regenerative Drives for DC Brush Motors...
  • Page 2 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 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.
  • Page 3 Safety Warnings • This symbol denotes an important safety tip or warning. Please read these sections carefully prior to performing any of the instructions contained in that section. • Have a qualified electrical maintenance technician 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 Health Act (OSHA), when installing equipment.

  • Page 4: Table Of Contents

    Contents Specifications Dimensions Regenerative Drives Installation Mounting chassis drives ........8 Mounting cased drives .
  • Page 5 Application Notes Connection to other Minarik devices ......33 Optional speed adjust potentiometer connections ....35...
  • Page 6 Deadband Settings ......... .32 Connection to Other Minarik Devices ......33 RG300/400 Connection to 200-0386A Logic Board .
  • Page 7 Corcom® Filters for CE Compliance ......47 Minarik® Filters for CE Compliance ......48...
  • Page 9 1/2 – 2 † † Maximum armature current and horsepower range apply when drive is attached to additional heat sink: Minarik part number 223-0235. Use heat sink when armature current is above 5 ADC. Heat sinks are pre-mounted on RG300 and RG400 series cased drives.
  • Page 10 Specifications Drive option description - by suffix Terminal Suffix Style Block Type NEMA 4 Cage-Clamp* A–S NEMA 4 Screw Chassis Cage-Clamp* UA–S Chassis Screw *Note: All cased regenerative drives in this series have a two slot screw terminal block for connecting the AC line voltage (see page 18).

  • Page 11: Rg300Ua, Rg310Ua And Rg400Ua Dimensions

    Dimensions Figure 1. RG300UA, RG310UA, and RG400UA Dimensions...

  • Page 12: Rg300Ua-S, Rg310Ua-S And Rg400Ua-S Dimensions

    Dimensions Figure 2. RG310UA–S, RG300UA–S, RG400UA–S, Dimensions...

  • Page 13: Cased Drive Dimensions

    Dimensions Figure 3. RG310A, RG300A, RG400A and RG310A–S, RG300A–S, RG400A–S Cased Drive Dimensions...

  • Page 14: Regenerative Drives

    Regenerative Drives Most non-regenerative, variable speed, DC drives control current flow to a motor in one direction. The direction of current flow is the same direction as the motor rotation. Non-regenerative drives operate in Quadrant 1, and also in Quadrant 3 if the drive is reversible (see Figure 4). Motors must stop before reversing direction.

  • Page 15: Four-Quadrant Operation

    Regenerative Drives Figure 4. Four Quadrant Operation...

  • Page 16: Installation

    Installation ASSUMPTIONS: 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. If this is opposite of the desired rotation, simply reverse the wiring of A1 and A2 with each other.

  • Page 17: Mounting Cased Drives

    Installation Mount the drive with its board in either a horizontal or vertical plane. Six 0.188 inch (4.8 mm) wide slots in the chassis accept #8 pan head screws. Fasten either the large base or the narrow flange of the chassis to the subplate. The chassis must be earth grounded for noise suppression.
  • Page 18 Installation Mounting cased drives (continued) 1. Install the mounting screws. 2. For access to the terminal strip, turn the slotted screw on the front cover counterclockwise until it is free from the case. The right side of the cover is hinged to the case. Lift or pull the slotted screw to open the case.

  • Page 19: Cage-Clamp Terminal Block

    Installation Cage-clamp terminal block Most connections to RG300 and RG400 Series drives (UA and A versions) are made to a cage-clamp terminal block (Figure 5). To insert a wire into the terminal block, press down on the lever arm using a small screwdriver. Insert stripped wire into the large opening in front of the terminal block.

  • Page 20: Screw Terminal Block

    Installation Screw terminal block Connections to RG300 and RG400 Series drives (A-S version and UA-S) are made to screw terminal blocks. The larger one is shown in Figure 6. Using a screwdriver, turn the terminal block screw counter- clockwise to open the wire clamp. Insert stripped wire into the wire clamp.

  • Page 21: Heat Sinking

    Chassis RG models require an additional heat sink when the continuous armature current is above 5 ADC. Use ® Minarik part number 223-0235. All cased drives have sufficient heat sinking in their basic configurations. Use a thermally conductive heat sink compound (such as Dow ®...

  • Page 22: Cased Drive Connections

    Installation Field Output Connections see page 19 Figure 8. Cased Drive Connections...

  • Page 23: 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. Use 18 AWG wire to connect the field output to a shunt wound motor. Table 1 lists the field output connections. Table 1.

  • Page 24: Speed Adjust Potentiometer Installation

    Installation Speed adjust potentiometer installation Speed adjust potentiometers are pre-installed on all cased drives. On chassis drives, install the circular insulating disk between the panel and the 10KΩ speed adjust potentiometer. Mount the speed adjust potentiometer through a 0.38 in. (0.96 cm) hole with the hardware provided (see Figure 9).

  • Page 25: Speed Adjust Potentiometer Connections

    Installation Speed adjust potentiometer connections The motor can operate in one direction (unidirectional) or in two directions (bidirectional) depending on how the speed adjust potentiometer is connected to the drive. Connect the speed adjust potentiometer as shown in Figure 10(a) for speed control in one direction. Connect the speed adjust potentiometer as shown in Figure 10(b) for speed control in two directions.

  • Page 26: Line Fusing For Rg300/400 Series

    Installation Line fuses Minarik drives require fuses for protection. Use fast acting fuses rated for 250 VAC or higher, and approximately 150% of the maximum armature current. Fuse only L1 when the line voltage is 115 VAC. Fuse both L1 and L2 when the line voltage is 230 VAC.

  • Page 27: Voltage Follower

    Installation Voltage follower The drive may be wired to follow a floating (isolated) 0 to ±10 VDC signal that is isolated from earth ground instead of using a speed adjust potentiometer. Connect the signal input to S2, and the signal common to RB1 (see Figure 11). Figure 11.

  • Page 28: Operation

    Operation Before applying power 1. Check connections before applying AC line voltage to the drive. 2. Check that no conductive material is present on the printed circuit board. Startup Chassis drives 1. Set the speed adjust potentiometer for zero speed. 2.

  • Page 29: Cased Drives

    Operation Cased drives 1. Set the FORWARD/BRAKE/REVERSE switch to the BRAKE position. 2. Set the speed adjust potentiometer to “0” (full CCW). 3. Apply AC line voltage. 4. Set the POWER switch to the ON position. 5. Set the FORWARD/BRAKE/REVERSE switch to the desired direction of rotation.

  • Page 30: Line Starting And Line Stopping

    Operation Line starting and line stopping Line starting and line stopping (applying and removing AC line voltage) is recommended for infrequent starting and stopping of a drive only. When AC line voltage is applied to the drive, the motor accelerates to the speed set by the speed adjust potentiometer.

  • Page 31: Regenerative Brake

    The INHIBIT terminals bypass both the MIN SPD circuit and the deceleration circuit. This causes the motor to stop rapidly when the INHIBIT terminals are shorted. Braking torque is determined by the opposite-direction torque setting. Minarik Corporation offers two accessory plug harnesses for the INHIBIT terminals: ® Minarik...

  • Page 32: Decelerate To Minimum Speed

    Operation Decelerate to minimum speed The circuit shown in Figure 13 may be used to decelerate a motor to a minimum speed. Closing the switch between S2 and S0 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 S2 and S0 is closed.

  • Page 33: Warning

    Operation Warning For frequent starts and stops, use regenerative deceleration (shorting RB1 and RB2), regenerative braking (shorting INHIBIT terminals to each other), or decelerating to minimum speed (shorting S2 to S0). Do not use any of these methods for emergency stopping. They may not stop a drive that is malfunctioning.

  • Page 34: Calibration

    Calibration Each drive is factory calibrated to its maximum horsepower rating. Readjust the calibration trimpot settings to accommodate lower horsepower motors. All adjustments increase with CW rotation, and decrease with CCW rotation. Use a non-metallic screwdriver for calibration. Each trimpot is identified on the printed circuit board. MIN SPD The MIN SPD setting determines the minimum speed when the speed adjust potentiometer is turned full CCW.

  • Page 35: Fwd Tq

    Calibration To calibrate MAX SPD: 1. Set the MAX trimpot full CCW. 2. Turn the speed adjust potentiometer full CW. 3. Adjust the MAX SPD trimpot until the desired maximum motor speed is reached. FWD TQ The FWD TQ setting determines the maximum torque for accelerating and driving the motor in the forward direction.

  • Page 36: Rev Tq

    Calibration REV TQ The REV TQ setting determines the maximum torque for accelerating and driving the motor in the reverse direction. It also sets the maximum torque for decelerating in the forward direction. REV TQ is factory set at 120% of rated motor current.

  • Page 37: Ir Comp

    Calibration 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 (exact calibration): 1. Turn the IR COMP trimpot full CCW. 2.

  • Page 38: Typical Fwd Tq, Rev Tq And Ir Comp Settings

    Calibration RG300 Models RG310 Models RG400 Models Figure 14. Typical FWD TQ, REV TQ, and IR COMP Settings (actual settings may vary with each application)

  • Page 39: Fwd Acc

    Calibration FWD ACC The FWD ACC setting determines the time the motor takes to ramp to either a higher speed in the forward direction or a lower speed in the reverse direction, within the limits of available torque. The FWD ACC setting is factory set for its fastest forward acceleration time.

  • Page 40: Deadband Settings

    Calibration The deadband trimmer potentiometer determines the time that will elapse between the application of current in one direction before current is applied in the opposite direction. The deadband trimmer potentiometer affects the resistance that a motor has to changes in shaft position at zero speed.

  • Page 41: Application Notes

    Application Notes Connection to other Minarik devices Figure 16. RG300/RG400 Series Connection to DLC100(DLC200), DLC300(DLC400), and PCM4...

  • Page 42: Rg300/400 Connection To 200-0386A Logic Board

    Application Notes RG300/RG400 Series 200-0386A Figure 17. RG300/RG400 Series connection to 200-0386A Limit Switch Logic Board...

  • Page 43: Optional Speed Adjust Potentiometer Connections

    Application Notes Optional speed adjust potentiometer connections Use a single pole, two position switch with a single speed adjust potentiometer to plug reverse the motor (Figure 18). The MIN SPD setting is in effect for either direction. Figure 18. Forward-Reverse Switch Use a single pole, three position switch with a single speed adjust potentiometer to stop a motor between reversals (Figure 19).

  • Page 44: Independent Adjustable Speeds

    Application Notes Connect two speed adjust potentiometers with a single pole two position switch to select between two independent speeds shown in the forward direction (Figure 20). The speed adjust potentiometers can be mounted at two separate operating stations. Figure 20. Independent Adjustable Speeds (Forward Direction) Connect two speed adjust potentiometers as shown in Figure 21 to select between independent forward and reverse speeds.
  • Page 45 Application Notes Use a single pole, three position switch to stop the motor when the switch is in the center position (Figure 22). Figure 22. Independent Forward and Reverse Speeds with a Forward-Stop-Reverse Switch...

  • Page 46: Troubleshooting

    Troubleshooting Warning Dangerous voltages exist on the drive when it is powered. When possible, disconnect the drive while troubleshooting. High voltages can cause serious or fatal injury. Check the following steps before proceeding: 1. The AC line voltage must be balanced, and match the voltage on the drive nameplate.
  • Page 47 Troubleshooting Possible Suggested Problem Causes Solutions 1. Field fuse is the 1. Verify that the fuse is Field fuse blows wrong size 1.5 A. 2. Check if the motor field 2. Motor field is shorted is shorted to ground. to ground Replace motor if necessary.
  • Page 48 Troubleshooting Problem Possible Suggested Causes Solutions Line fuse does not 1. Speed adjust 1. Increase the speed blow, but the motor potentiometer or voltage adjust potentiometer or does not run. input signal set to zero voltage setting. speed. 2. Speed adjust 2.
  • Page 49 Troubleshooting Possible Suggested Problem Causes Solutions Motor runs too slow or 1. MIN SPD and MAX 1. Calibrate MIN SPD SPD not calibrated. and MAX SPD. too fast. 2. Field not operating 2. Verify motor field properly. connections and voltage (see page 19).
  • Page 50 Solutions Causes Turn deadband (DB) Deadband setting is too Motor makes a trimpot CCW until the humming or buzzing high. noise stops. noise. ® For additional assistance, contact you local Minarik Distributor, or the factory direct: phone (818)502-1528; fax (818)502-0716.

  • Page 51: Block Diagram

    Block Diagram Figure 23. RG300 and RG400 Series Block Diagram...

  • Page 52: Factory Prewired Connections (For Cased Drives)

    Factory Prewired Connections (for Cased Drives) Figure 24. Prewired Connections to L1 and L2...

  • Page 53: Prewired Speed Adjust Potentiometer Connections

    Factory Prewired Connections Figure 25. Prewired Speed Adjust Potentiometer Connections...

  • Page 54: Ce Compliance

    The RG300/RG400 series has been tested to the following test specifications: EN55011:1991 (emissions), and EN50082-1:1992 (immunity) Compliance allows Minarik’s RG300/RG400 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 external, portion of the machine being operated.

  • Page 55: Line Filters

    CE Compliance Line filters Minarik requires the Corcom ® line filters listed in Table 3. If the exact filter is not available, the specifications are: L = 0.88 milliHenries. C = 0.30 microFarads (X); 0.011 microFarads (Y). R = 680Kohms.

  • Page 56: Armature Filters

    L & L1 = 2 * (0.8) milliHenries. C & C1 = 2 * (0.1) microFarads @ 400W VDC. Rin = 0.1 ohm; Rout = 1.2 ohm. Table 4. Minarik ® Filters Minarik ® Filter Nameplate Current of Motor Wired to the Drive...
  • Page 57 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.

  • Page 58: Replacement Parts

    Replacement Parts Replacement parts are available from Minarik Corporation and its distributors for this drive series. Table 5. Replacement Parts ® Model No. Symbol Description Minarik RG310UA R501 0.1Ω, 5 W Resistor 032-0100 SCR501-508 800 V, 25 A SCR 072-0042...
  • Page 59 Replacement Parts Table 5. Replacement Parts (Continued) ® Model No. Symbol Description Minarik RG300UA R501 0.01Ω, 5 W Resistor 032-0129 SCR501-508 800 V, 25 A SCR 072-0042 T505 3FS-436 Transformer 230-0071 10KΩ Potentiometer Kit 202-0003 Chassis 223-0258 20 A, 3AB Line Fuse 050-0019 1.5 A, 3AG Field Fuse...
  • Page 60 Replacement Parts Table 5. Replacement Parts (Continued) ® Model No. Symbol Description Minarik RG400UA R501 0.1Ω, 5 W Resistor 032-0129 SCR501-508 800 V, 25 A SCR 072-0042 T505 3FD-436 Transformer 230-0072 10KΩ Potentiometer Kit 202-0003 Chassis 223-0258 20 A, 3AB Line Fuse 050-0019 1.5 A, 3AG Field Fuse...
  • Page 61 Notes...
  • Page 62 Notes...
  • Page 63 Limited Warranty A. Warranty - Minarik Corporation (referred to as “the Corporation”) warrants that its products will be free from defects in workmanship and material for two (2) years from date of shipment thereof, or 6,000 hours, whichever comes first. Within this warranty period, the Corporation will repair or replace such products that are: (1) returned to Minarik Corporation, 901 East Thompson Avenue, Glendale, CA 91201-2011 USA;...
  • Page 64 901 East Thompson Avenue Glendale, California 91201-2011 Phone: (818) 502-1528 Fax: (818) 502-0716 www.minarikcorp.com Document number 250–0167, Revision 2 Printed in the U.S.A – 2/98 North America $12.00, Outside North America $15.00...

This manual is also suitable for:

Rg310Rg300Rg400 seriesRg400

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