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RG500 SERIES SCR, Dual Voltage, Adjustable-Speed Regenerative Drives for DC Brush Motors...
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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.
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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.
1/10–1/4 † 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 7 ADC. Heat sinks are pre-mounted on RG500 cased drives. * See page 2 for suffix descriptions.
Regenerative Drives In most non-regenerative, variable speed, DC drives control current flows 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 3, page 6).
Installation Mounting chassis drives Drive components are sensitive to electrostatic fields. Avoid contact with the circuit board directly. Hold the 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.
Installation Mounting cased drives NEMA 4X cased drives come with three 0.88 inch (22 mm) conduit knockout holes at the bottom of the case. The units may be vertically wall mounted using the four 0.25 inch (6 mm) slotted holes on the attached heat sink. For motor loads less than 5 ADC, the drive may be bench mounted horizontally, or operated without mounting.
Chassis RG500 models require an additional heat sink when the continuous armature current is above 7 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 ®...
Installation Cage-clamp terminal block Connections to RG500 Series drives are made to a cage-clamp terminal block (see Figure 6). 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.
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.
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. 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.
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 8(a) for speed control in one direction. Connect the speed adjust potentiometer as shown in Figure 8(b) for speed control in two directions.
Do not short the +15 and -15 terminals for any reason. Shorting these terminals may damage the drive. RG500 Series drives can supply a regulated +15 and –15 VDC signal (each sourcing 15 mA maximum) to isolated, external devices. These voltage supply terminals are located on terminal block TB502 (see figure 9).
Installation Line Fusing for RG Series Drives 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 L1 when using 115 VAC line voltage. Fuse both L1 and L2 when the line voltage is 230 VAC.
Installation All drives have line fuses installed (see Replacement Parts section for installed line fuse size). Line fuses are rated for maximum rated curent. Use line fuses rated for 20 A or less on RG500 drives (8 A or less on RG501 drives). Voltage follower The drive may be wired to follow a floating (isolated) 0 to ±10V signal that is isolated from earth ground instead of...
Operation Warning Dangerous voltages exist on the drive when it is powered. BE ALERT. High voltages can cause serious or fatal injury. For your safety, use personal protective equipment (PPE) when operating this drive. Before applying power 1. Check connections before applying AC line voltage to the drive.
Operation Selector switch settings 1. Set the line voltage selector switches (SW501 and SW502) to 115 if using 115 VAC line voltage, or to 230 if using 230 VAC line voltage. 2. Set the armature voltage selector switch (SW503) to 90 if using a 90 VDC motor, or to 180 if using a 180 VDC motor.
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 “I” (ON) position. 5. Set the FORWARD/BRAKE/REVERSE switch to the desired direction of rotation.
Starting and Stopping Methods 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.
Starting and Stopping Methods Regenerative brake Short the INHIBITterminals to regeneratively brake the motor (see Figure 13 for INHIBIT terminal location). Reopening the INHIBIT terminals causes the motor to accelerate to set speed. The INHIBIT terminals bypass both the MIN SPD circuit and the deceleration circuit.
Starting and Stopping Methods Minarik Corporation offers two accessory plug harnesses for the INHIBIT terminals: ® Minarik Part Number Description 201-0024 Inhibit plug with 18 in. (46 cm) wires 201-0079 Inhibit plug with 36 in. (91 cm) wires Twist inhibit wires and separate them from other power- carrying wires or sources of electrical noise.
Starting and Stopping Methods C O A S T COAST TO T O S T O P STOP COAST / RUN SWITCH I N H - R U N I N H - R U N I N H - R U N I N H - R U N I N H - R U N I N H - R U N...
Starting and Stopping Methods Decelerate to zero speed The circuit shown in Figure 16 may be used to decelerate a motor to a zero speed. Closing the switch between S2 and S0 decelerates the motor from set speed to zero speed. The DECEL trimpot setting determines the rate at which the drive decelerates.
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Starting and Stopping Methods Warning For frequent starts and stops, use regenerative deceleration (shorting RB1 and RB2), regenerative braking (shorting INHIBIT terminals to each other), coasting to a stop (shorting INHIBIT–RUN terminals 1 and 2), or decelerating to minimum speed (shorting S2 to S0). Do not use any of these methods for emergency stopping.
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.
Calibration MINIMUM SPEED (MIN SPD) The MIN SPD trimpot setting determines the motor speed when the speed adjust potentiometer is turned full CCW. It is factory set to zero speed. The minimum speed feature applies only when the drive is operating in unidirectional mode.
Continuous operation beyond this rating may damage the motor. If you intend to operate beyond the rating, contact your Minarik representative for assistance. The FWD TQ trimpot setting determines the maximum torque for accelerating and driving the motor in the forward direction. It also sets the maximum torque for decelerating the motor in the reverse direction.
Continuous operation beyond this rating may damage the motor. If you intend to operate beyond the rating, contact your Minarik representative for assistance. The REV TQ trimpot setting determines the maximum torque for accelerating and driving the motor in the reverse direction. It also sets the maximum torque for decelerating the motor in the forward direction.
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. Recalibrate the IR COMP setting when using a lower curernt rated motor.
Calibration FORWARD ACCELERATION (FWD ACC) The FWD ACC trimpot 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.
Calibration RG500 Models 1 HP 2 HP 1 HP 2 HP 90 VDC 180 VDC 90 VDC 180 VDC 10 ADC 9.2 ADC 10 ADC 9.2 ADC F W D R E V C O M P F W D R E V C O M P F W D T Q...
Calibration DEADBAND (DB) 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.
Calibration TACHOGENERATOR (TACH) Calibrate the TACH setting only when a tachogenerator is used. The TACH setting, like the IR COMP setting, determines the degree to which motor speed is held constant as the motor load changes. To calibrate the TACH trimpot: 1.
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Calibration 12. Place the Feedback selector switch (SW504) to the Tachogenerator (TACH) position. 13. Apply power to the drive. The motor should run in the forward direction. 14. Rotate the TACH trimmer pot CCW so that the maximum speed is reached. this is the same speed as was obtained in step 10.
Application Notes Connection to other Minarik devices TB502 T B 5 0 2 RG500 SERIES DLC600 RG500 SERIES DLC600 DRIVE DIGI-LOC CONTROLS DRIVE DIGI-LOC CONTROL R B 1 TB502 TB501 T B 5 0 2 T B 5 0 1...
See Figure 20 for RG500 connections to the 200-00386A limit switch logic board. For more information on Minarik’s limit switch logic board, refer to User’s Manual 250-0222 or the Minarik Product Catalog. F U 5 0 1...
Application Notes Optional speed adjust potentiometer connections Forward-Reverse Switch Use a single-pole, two- position switch with a single speed adjust potentiometer to plug reverse the motor (Figure 21). The MIN SPD setting is in effect for either direction. Figure 21. Forward-Reverse Switch Forward-Stop-Reverse Switch Use a single-pole, three- position switch with a...
Application Notes Independent Adjustable Speeds (Forward Direction Only) Connect two speed adjust potentiometers with a single-pole two-position switch to select between two independent speeds shown in the forward direction (Figure 23). The speed adjust potentiometers can be mounted at two separate operating stations.
Application Notes Independent Forward and Reverse Speeds Connect two speed adjust potentiometers as shown in Figure 24 to select between independent forward and reverse speeds. 10K OHM 10K OHM FORWARD REVERSE Figure 24. Independent Forward and Reverse Speeds...
Application Notes Independent Forward and Reverse Speeds with FWD-STOP-REV Switch Use a single-pole, three-position switch to stop the motor when the switch is in the center position (Figure 25). 10K OHM 10K OHM FORWARD STOP REVERSE Figure 25. Independent Forward and Reverse Speeds with a Forward-Stop-Reverse Switch...
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 match the voltage on the drive nameplate.
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Troubleshooting Field fuse blows 1. Disconnect AC line voltage from the drive. 2. Verify that the fuse is 1.5 A. 3. Check motor cable for shorts. 4. Check motor field for shorts. a. Disconnect field leads from terminals F1 and F2 b.
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Troubleshooting Motor pulsates or surges under load 1. Readjust the IR COMP setting slightly CCW until the motor speed is stabilized. 2. Verify that the motor is not going in and out of current limit. If so, re-adjust FWD TQ and REV TQ pots. Line fuse does not blow, but the motor does not run 1.
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1. Check the MAX SPD setting and increase if necessary. 2. Check that the IR COMP setting is not set too low. 3. Check that the motor is not overloaded. For additional assistance, contact your local Minarik® distributor, or the factory direct at: PHONE: (800) MINARIK FAX: (800) 394-6334...
Factory Prewired Connections (for Cased Drives) WHITE/BLACK WHITE L2 (230) BLACK POWER LIGHT BLACK BLACK BLACK/WHITE WHITE/BLACK L2 (115) Figure 26. Prewired Connections to L1, L2(115) and L2(230)
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Factory Prewired Connections grey GREY grey/white blue/ GREY/WHITE BLUE/ white WHITE BRAKE BRAKE green GREEN blue BLUE Figure 27. Prewired Speed Adjust Potentiometer Connections...
Replacement Parts Replacement parts are available form Minarik Corporation and its distributors for this drive series. Table 3. Replacement Parts ® Model No. Symbol Description Minarik RG500UA R501 0.01Ω, 5 W Resistor 032-0129 SCR501-508 800 V, 25 A SCR 072-0042...
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Replacement Parts Table 3. Replacement Parts (Continued) ® Model No. Symbol Description Minarik RG510UA R501 0.05Ω, 5 W Resistor 032-0146 SCR501-508 800 V, 25 A SCR 072-0042 T505 3FD-436 Transformer 230-0072 10KΩ Potentiometer Kit 202-0003 Chassis 223-0258 8 A, 3AB Line Fuse 050-0023 Line Fuse Kit (3 –...
“CE” mark provided the conditions of approval (listed in Exhibit “A”) have been met by the end user. The RG500 series has been tested to the following test specifications: EN55011:1991 (emissions), and EN50082-1:1992 (immunity).
CE Addendum Exhibit “A” In addition to EMI/RFI safeguards inherent in the RG500 series’ design, external filtering is required. Minarik requires the Corcom ® filters listed in Table 4. If the exact filter is not available, the specifications are as follows: L = 1.8 milliHenries.
The end user must use the filtration listed in Exhibit A 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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CE Addendum 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 if every component in the OEM’s machine does meet CE, the machine will not necessarily meet CE as a machine.
Block Diagram Figure 28. RG500 Series Block Diagram...
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Block Diagram PLEASE NOTE: PLEASE NOTE: A MAXIMUM OF 10 mA MAY BE SOURCED A MAXIMUM OF 10 mA MAY BE SOURCED PLEASE NOTE: A MAXIMUM OF 10 mA DC MAY BE SOURCED FROM THE S1 AND/OR S2 TERMINALS TO A ISOLATED LOAD FROM THE S1 AND/OR S2 TERMINALS TO A ISOLATED LOAD F R O M T H E S 1 A N D / O R S 2 T E R M I N A L S T O A I S O L A T E D L O A D O R OR 15 mA DC MAY BE SOURCED FROM THE +15 AND -15...
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,...
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901 East Thompson Avenue Glendale, California 91201-2011 Phone: (800) MINARIK or (800) 646-2745 Fax: (800) 394-6334 www.minarikcorp.com Document number 250–0210, Revision 3 Printed in the U.S.A – 4/01 North America $12.00, Outside North America $13.00...
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