Related Manuals for Rockwell Automation RELIANCE ELECTRIC DC3N Series
Summary of Contents for Rockwell Automation RELIANCE ELECTRIC DC3N Series
- Page 1 DC3N Non-Regenerative DC Drive User Guide 1/4 to 2 HP, 115/230 VAC M/N DC3N-12D-00-010-AI M/N DC3N-12D-4X-010-AI Instruction Manual D2-3452-4...
- Page 2 IMPORTANT: Identifies information that is critical for successful application and understanding of the product. Corcom is a trademark of CII Technologies. Reliance is a trademark of Rockwell Automation. © 2004 Rockwell International Corporation All rights reserved...
- Page 3 ATTENTION: Only qualified personnel familiar with the construction and operation of this equipment and the hazards involved should install, adjust, operate, and/or service this equipment. Read and understand this instruction manual in its entirety before proceeding. Failure to observe this precaution could result in severe bodily injury or loss of life.
- Page 4 Safety Warnings ATTENTION: Starting and stopping with the start/stop terminals does not disconnect AC power in the stop position. A hardwired AC power disconnection switch must be mounted between the AC source and terminals L I and L2. This is required, as the DC drive does not have an armature loop contactor.
- Page 5 Contents Specifications Dimensions and Layout Installation Wiring ..........8 Shielding guidelines .
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Page 6: Table Of Contents
Table of Contents Field output ........29 Tachometer feedback . - Page 7 Table of Contents DECEL ......... . .56 TACH VOLTS .
- Page 8 Illustrations Figure 1. DC3N-12D-00-010-AI Dimensions ....4 Figure 2. DC3N-12D-4X-010-AI Dimensions ....5 Figure 3.
- Page 9 Specifications Max. Armature HP Range HP Range Current with115 VAC with 230 VAC Model (Amps DC) Applied Applied DC3N-12D-00-010-AI 1/4 – 1 1/2 – 2 DC3N-12D-4X-010-AI 1/4 – 1 1/2 – 2 Model Style DC3N-12D-00-010-AI Open chassis DC3N-12D-4X-010-AI NEMA 4X/12 AC Line Voltage 115 VAC or 230 V AC, 50 or 60 Hz, 1 Phase Maximum Allowable Symmetrical AC Line Current...
- Page 10 Specifications Minimum Speed Trimpot Range (% of rated input voltage) 0 to 50% Torque Trimpot Maximum Setting (% of maximum current) 200% IR Drop Compensation (% of rated armature voltage) 0 to 15% Acceleration Time Range 0.5 – 10 seconds Deceleration Time Range 0.5 –...
- Page 11 Specifications Drive Ratings Motor Motor Rated Armature Field Field Motor AC Line Input Armature Current Voltage Current Amps Voltage (Amps) (Amps) 10.6 10.1 10.1 Efficiency (at maximum horsepower output)
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Page 12: Figure 1. Dc3N-12D-00-010-Ai Dimensions
Dimensions and Layout 0.76 [19] 4.46 [113] 3.00 [76] 0.77 [19] 1.80 [46] 0.98 [25] 6.30 [160] 6.90 [175] SIX (6) MOUNTING SLOTS 0.19 [5] WIDE x 0.30 [8] DEEP ALL DIMENSIONS IN INCHES [MILLIMETERS] Figure 1. DC3N-12D-00-010-AI Dimensions... -
Page 13: Figure 2. Dc3N-12D-4X-010-Ai Dimensions
Dimensions 6.90 [175] 6.30 [160] 1.40 [36] 10.22 [260] 9.80 [249] 7.00 [178] 0.22 1.45 [37] 5.51 [140] 4.78 [121] 2.31 [59] 0.12 1.50 [38] 1.50 [38] THREE 0.88 [22] KNOCKOUTS ALL DIMENSIONS IN INCHES [MILLIMETERS] Figure 2. DC3N-12D-4X-010-AI Dimensions... -
Page 14: Figure 3. Pc Board Layout
Dimensions and Layout ACCEL AND DECEL TRIMMER POTENTIOMETERS (P503, P504) IR COMP TRIMMER POTENTIOMETER (P506) FEEDBACK SELECTOR CURRENT LIMIT SWITCH (SW505) TRIMMER POTENTIOMETER (P505) POWER LED (IL502) TACHOGENERATOR VOLTAGE TRIMMER POTENTIOMETER (P507) CURRENT LIMIT LED (IL501) TACHOGENERATOR TERMINAL BLOCKS SPEED ADJUST POTENTIOMETER TERMINAL BLOCKS START/STOP TERMINAL BLOCKS... - Page 15 Installation ATTENTION: Only qualified technical personnel, familiar with the construction and operation of this equipment and the hazards involved, should install, adjust, operate and/or service this equipment. Read and understand this instruction manual in its entirety before proceeding. Failure to observe this precaution could result in severe bodily injury or loss of life.
- Page 16 Installation Wiring ATTENTION: 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. Use a non-metallic screwdriver for the calibration trimpots. ATTENTION: Do not disconnect any of the motor leads from the drive unless power is removed or the drive is disabled.
- Page 17 Installation ATTENTION: Under no circumstances should power and logic leads be bundled together. Induced voltage can cause unpredictable behavior any electronic device, including motor controls. As a general rule, Reliance Electric recommends shielding of all conductors if: 1) wire lengths exceed 4 inches and power and logic leads must be bundled together*;...
- Page 18 Installation Chassis drive ATTENTION: This drive contains ESD (Electric Static Discharge) sensitive parts and assemblies. Static control precautions are required when installing, testing, servicing, or repairing this assembly. Failure to observe these precautions could result in damage to, or destruction of, the equipment. Mounting Protect the drive from dirt, moisture, and accidental contact.
- Page 19 Installation The chassis units do not have to be earth grounded. If you choose to ground the chassis, 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 20 Installation Observe the following guidelines when installing an isolation transformer: · A power disconnecting device must be installed between the power line and primary of the transformer. · If the power disconnecting device is a circuit breaker, the circuit breaker trip rating must be coordinated with the in-rush current (10-12 times full load current) of the transformer.
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Page 21: Table 1. Recommended Line Fuse Sizes
Installation Line fusing This DC3 drive model has 15-amp line fuses preinstalled on fuse holders 501 and 502 (FU501 and FU502). When replacing the line fuses, use fast acting fuses rated for 250 VAC or higher. See Figure 3, page 6, for fuse holder location, and Table 1 for recommended replacement line fuse sizes for specific application ratings. -
Page 22: Figure 4. Speed Adjust Potentiometer
Installation Speed adjust potentiometer Install the circular insulating disk between the mounting panel and the 10K ohm speed adjust potentiometer (see Figure 4). Mount the speed adjust potentiometer through a 0.38 inch (10 mm) hole with the hardware provided. Twist the speed adjust potentiometer wire to avoid picking up unwanted electrical noise. - Page 23 Installation Alternate speed adjust potentiometer connections Alternate speed adjust potentiometer connections may be found in the Application Notes section of this user guide. IMPORTANT: The user may choose to install a 5K ohm speed adjust potentiometer; however, the MIN SPD and MAX SPD trimpots must be recalibrated if the 5K ohm potentiometer is used.
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Page 24: Figure 5. Cage-Clamp Terminal
Installation Cage-clamp terminals Logic connections are made to cage-clamp terminals. To insert a wire into the cage-clamp terminal: Press down on the lever arm using a small screwdriver. Insert wire into the wire clamp. Release the lever arm to clamp the wire. Figure 5. - Page 25 Installation Connections ATTENTION: Do not connect this equipment with power applied. Failure to follow this directive may result in fire or serious injury. ATTENTION: Starting and stopping with the start/stop terminals does not disconnect AC power in the stop position. A hardwired AC power disconnection switch must be mounted between the AC source and terminals L I and L2.
- Page 26 Installation ATTENTION: Installation of a master power switch in the input line is required. This is the only way to disconnect power from the motor. The user is responsible for assuring safe conditions for operating personnel by providing suitable guards, audio or visual alarms, or other devices.
- Page 27 Installation Connect a motor to terminals A1 and A2 as shown in Figure 6 (page 23). Ensure that the motor voltage rating is consistent with the drive’s output voltage. Power input ATTENTION: Installation of a master power switch in the input line is required. This is the only way to disconnect power from the motor.
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Page 28: Table 2. Field Output Connections
Installation Field output ATTENTION: Do not make any connections to F1 and F2 when using a permanent magnet motor. The field output is for shunt wound motors only. See Table 2 for field output connections. Table 2. Field Output Connections Line Voltage Approximate Connect Motor... - Page 29 Installation START/STOP pushbuttons ATTENTION: Starting and stopping with the start/stop terminals does not disconnect AC power in the stop position. A hardwired AC power disconnection switch must be mounted between the AC source and terminals L I and L2. This is required, as the DC3 drive does not have an armature loop contactor.
- Page 30 Installation Tachometer feedback ATTENTION: Applying the incorrect polarity to the tachometer can cause an overspeed condition. Make sure the positive (+) wire is connected to terminal T1 and the negative (-) wire is connect to terminal T2 when the motor is running in the forward direction. Failure to observe this precaution could result in bodily injury.
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Page 31: Figure 6. Dc3N-12D-00-010-Ai Drive Connections
Installation SPEED ADJUST POTENTIOMETER 10K OHMS P502 P501 N.O.S TART N.C. STOP NOTE: IF PUSHBUTTONS ARE NOT USED, CONNECT B1 TO B3 FU501 FU502 IC503 FAST ACTINGF USES ONLY RC501 R501 TB501 L2(115) L2(230) 115V AC LINE MOTOR VOLTAGE 230 VAC FIELD OUTPUT TACHOGENERATOR LINE... -
Page 32: Figure 7. Dc3N-12D-00-010-Ai Drive Signal Follower Connection
Installation Voltage or current follower Instead of using a speed adjust potentiometer, these DC3N model drives may be wired to follow an external input signal (see Figure 7 for connections). This input signal can be in the form of voltage (0-10 VDC) or current (4-20 mA). Because these drives have built in isolation the input signal can be either grounded or ungrounded. - Page 33 Installation Enclosed drive Mounting The NEMA 4X enclosed drive comes with 0.88 inch (22 mm) conduit knockout holes at the bottom of the enclosure. The units may be vertically wall mounted using the four 0.19 inch (5 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.
- Page 34 Installation 6. Turn the slotted screw clockwise until tight to secure the front cover. 7. Set the POWER switch to the OFF position before applying the AC line voltage. Heat sinking The enclosed DC3N drive contains sufficient heat sinking in its basic configuration.
- Page 35 Installation Connections ATTENTION: A single fault like a power device short may cause motor rotation when in the stop mode. The user is responsible for assuring safe conditions for operating personnel by providing suitable guards, audio or visual alarms, or other devices. Failure to observe these precautions could result in bodily injury.
- Page 36 Installation Motor ATTENTION: To provide the motor with overload protection, local, national, and international codes (e.g., NEC/CEC) require that a motor thermostat, internal to the motor, be installed or an electronic thermal motor overload relay, sized to protect the motor, be installed between the motor and the drives output terminals.
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Page 37: Field Output
Installation Power input Connect the AC line power leads to terminals L1 and L2 as shown in Figure 8 (page 31). Ensure that earth ground is connected to the green screw inside the case. Field output ATTENTION: Do not make any connections to F1 and F2 when using a permanent magnet motor.The field output is for shunt wound motors only. -
Page 38: Tachometer Feedback
Installation Tachometer feedback ATTENTION: Applying the incorrect polarity to the tachometer can cause an overspeed condition. Make sure the positive (+) wire is connected to terminal T1 and the negative (-) wire is connect to terminal T2 when the motor is running in the forward direction. Failure to observe this precaution could result in bodily injury. -
Page 39: Figure 8. Dc3N-12D-4X-010-Ai Drive Connections
Installation – 230 VAC MOTOR SEE NOTES 1, ARMATURE 2, AND 3 115 VAC EARTH GROUND (GREEN SCREW) COM (–) REF (+) 115/230 VAC FIELD LINE VOLTAGE INPUT COIL 0 – 10 VDC OR 4 – 20 mADC SEE NOTE 4 INPUT SIGNAL 1. -
Page 40: Voltage Or Current Follower
Installation Voltage or current follower Instead of using a speed adjust potentiometer, these DC3N series drives may be wired to follow an external input signal (see Figure 8 on page 31 for connections). This input signal can be in the form of voltage (0-10 VDC) or current (4-20 mA). -
Page 41: Slide Switches
Installation Slide switches ATTENTION: Change slide switch settings only when the drive is disconnected from the AC line voltage. Make sure both line voltage and motor 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 transformer damage. -
Page 42: Signal (Sw504)
Installation SIGNAL (SW504) This switch should be left in the VOLT mode. NOTE: If the input signal is 0-10 VDC, the resistor must be removed. If the input signal is a 4-20 mADC signal it must remain installed. FEEDBACK (SW505) ATTENTION: The DC3N does not have tachometer loss or a field loss protection. -
Page 43: Figure 9. Slide Switches
Installation FEEDBACK SELECT SWITCH (SW505) VOLTAGE SELECT SWITCHES (SW501,SW502) P502 SIGNAL P501 SOURCE SELECT (SW504) FU501 FU502 FU503 IC503 FAST ACTING FUSES ONLY RC501 ARMATURE R501 VOLTAGE TB501 SELECT (SW503) L2(115) L2(230) Figure 9. Slide Switches... -
Page 44: Operation
Operation ATTENTION: 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 45: Before Applying Power (All Models)
Operation Before applying power (all models) ATTENTION: If the motor or drive does not perform as described, disconnect the AC line voltage immediately. Refer to the Troubleshooting section, page 67, for further assistance. • Set LINE VOLTAGE SELECT switches SW501 and SW502 to either 115V or 230V to match the AC line voltage. -
Page 46: Drive Operation
Operation Drive operation Chassis drive operation POWER ON start SPEED REFERENCE: External signal or potentiometer START/STOP control: POWER ON/OFF IMPORTANT: It is necessary to wire a jumper between B1 and B3 if no START/STOP switches are to be used. IMPORTANT: Line starting and line stopping (applying and removing AC line voltage) is recommended for infrequent starting and stopping of a drive only. -
Page 47: Pushbutton Start/Stop
Operation Slowly increase the speed reference signal. The motor slowly accelerates as the potentiometer is turned CW or the external speed reference is increased. Continue until the desired speed is reached. Remove AC line voltage to coast the motor to a stop. Pushbutton start/stop SPEED REFERENCE: External signal or potentiometer START/STOP control: PUSHBUTTON... - Page 48 Operation 2. Apply AC line voltage. 3. Slowly increase the speed reference signal and press the START pushbutton. The motor accelerates as the potentiometer is turned CW or the external speed reference is increased. Continue until the desired speed is reached. 4.
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Page 49: Alternate Starting And Stopping Methods
Operation Alternate Starting and Stopping Methods ATTENTION: The DC3 Drive is intended to operate at a predetermined minimum speed. If the application requires zero speed operation, the user is responsible for assuring safe conditions for operating personnel by providing suitable guards, audio or visual alarms, or other devices. -
Page 50: Minimum Speed
Operation Minimum speed The circuit shown in Figure 10 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 51: Dynamic Braking
Operation Dynamic braking ATTENTION: Wait for the motor to completely stop before switching it back to RUN. This will prevent high armature currents from damaging the motor. ATTENTION: Armature output can drift full ON with the switch in the BRAKE position and will be driven full ON if the minimum speed option is selected with the inhibit circuit. -
Page 52: Table 4. Minimum Recommended Dynamic Brake Resistor Values
Operation Table 4. Minimum Recommended Dynamic Brake Resistor Values Motor Armature Minimum Minimum Current Rating Dynamic Brake Dynamic Brake Wattage Resistor Value Resistor Less than 2 ADC 1 ohm 2–3 ADC 5 ohm 3–5 ADC 10 ohm 5–10 ADC 20 ohm DC3N DRIVE DYNAMIC BRAKE... -
Page 53: Enclosed Drive Operating Modes
Operation Enclosed drive operating modes ATTENTION: If you run the drive in AUTO mode, you must recalibrate the MIN SPD trimpot to offset any motor drift caused by the input signal. Refer to the Calibration section (page 48) for more information. The mode selector switch on the drive, mounted on its cover, provides the option of operating in either MANUAL (mounted speed potentiometer) or AUTO (external signal... -
Page 54: Auto Mode
Operation Auto mode IMPORTANT: If you run the drive in AUTO mode using an external current signal, you must recalibrate the MIN SPD trimpot to offset any motor drift caused by the input signal. IMPORTANT: When switching between MANUAL and AUTO (0-10 VDC) modes, you must balance the MIN SPD trimpot setting for both operating modes. -
Page 55: To Run The Motor
Operation ATTENTION: Frequent starting and stopping can produce high torque. This may cause damage to motors, especially gearmotors that are not properly sized for the application. To run the motor: Set the speed adjust potentiometer to “0” (full CCW). Apply AC line voltage. Set the POWER switch to the ON position. -
Page 56: Calibration
Calibration ATTENTION: Dangerous voltages exist on the drive when it is powered, and up to 30 seconds after power is removed and the motor stops. 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. -
Page 57: Figure 12. Calibration Trimpot Layout
Calibration IR COMP CURRENT LIMIT TACH VOLTS DECELERATION ACCELERATION MAXIMUM SPEED P502 MINIMUM SPEED P501 FU501 FU502 Figure 12. Calibration Trimpot Layout... -
Page 58: Drive Calibration Procedure
Calibration Drive Calibration Procedure Prepare the DC3N drive for calibration as follows. This procedure applies to both chassis and enclosed drives. Ensure that no power is applied to the drive. If you use an enclosed drive, you must open the drive cover to gain access to the trimpots. -
Page 59: Min Spd
Calibration MIN SPD ATTENTION: The DC3N Drive is intended to operate at a predetermined minimum speed. If the application requires zero speed operation, the user is responsible for assuring safe conditions for operating personnel by providing suitable guards, audio or visual alarms, or other devices. -
Page 60: Max Spd
Calibration MAX SPD The MAX SPD setting determines the motor speed when the speed adjust potentiometer or external reference signal is set for maximum speed. It is factory set for maximum rated motor speed. To calibrate MAX SPD: 1. Set the MAX SPD trimpot full CCW. 2. -
Page 61: Current Limit
Calibration CURRENT LIMIT ATTENTION: Although the CURRENT LIMIT trimpot is set to 120% of the maximum drive current rating, continuous operation at that rating may damage the drive or motor. The CURRENT LIMIT setting determines the maximum armature current output of the drive. It is factory set at 120% of maximum drive current. -
Page 62: Ir Comp
Calibration 6. Adjust the CURRENT LIMIT trimpot slowly CW until the armature current is 120% of motor rated current. 7. Set the speed adjust potentiometer or external reference signal for zero speed and remove power. 8. Remove the lock on the motor armature shaft. IR COMP The IR COMP setting determines the degree to which motor speed is held constant as the motor load changes. -
Page 63: Approximate Ir Comp Calibration
Calibration Approximate IR COMP calibration: If the motor does not maintain set speed as the load changes, gradually rotate the IR COMP trimpot CW. If the motor oscillates (overcompensation), the IR COMP trimpot may be set too high (CW). Turn the IR COMP trimpot CCW to stabilize the motor speed. -
Page 64: Decel
Calibration DECEL The DECEL setting determines the time the motor takes to ramp to lower speed, within the limits of available torque. The DECEL setting is factory set for its fastest deceleration time (full CCW). To calibrate DECEL: 1. Set the speed adjust potentiometer or external reference signal for maximum speed. -
Page 65: Tach Volts
Calibration TACH VOLTS ATTENTION: Applying the incorrect polarity to the tachometer can cause an overspeed condition. Make sure the positive (+) wire is connected to terminal T1 and the negative (-) wire is connect to terminal T2 when the motor is running in the forward direction. Failure to observe this precaution could result in bodily injury. - Page 66 Calibration 3. Set switch 505 (SW505) to ARM for armature feedback. 4. Apply power to drive. 5. Set the speed adjust potentiometer or external reference signal to maximum speed. 6. Measure the armature voltage across A1 and A2 using a voltmeter. 7.
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Page 67: Figure 13. Typical Current Limit
Calibration CURRENT CURRENT 1 HP 1 HP LIMIT COMP LIMIT COMP 90 VDC 180 VDC 1750 RPM 1740 RPM 10 ADC 5 ADC CURRENT CURRENT LIMIT COMP LIMIT COMP 1/2 HP 1/2 HP 90 VDC 180 VDC 1750 RPM 1750 RPM 5 ADC 2.5 ADC CURRENT... -
Page 68: Application Notes
Application Notes ATTENTION: The equipment is at line voltage when AC power is connected. Disconnect and lockout all ungrounded conductors of the AC power line. Failure to observe this precaution could result in severe bodily injury or loss of life. This section shows typical chassis drive connections. -
Page 69: 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 15 shows a connection for fixed high and low speed adjust potentiometers. -
Page 70: 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 16 shows the connection of two independent speed adjust potentiometers that can be mounted at two separate operating stations. -
Page 71: Reversing
Application Notes Reversing ATTENTION: The DC3 Drive is intended to operate at a predetermined minimum speed. If the application requires zero speed operation, the user is responsible for assuring safe conditions for operating personnel by providing suitable guards, audio or visual alarms, or other devices. -
Page 72: Figure 17. Reversing Circuit Connection
Application Notes BRAKE DYNAMIC BRAKE MOTOR RESISTOR Figure 17. Reversing Circuit Connection... -
Page 73: Run/Jog Switch
Application Notes RUN/JOG switch ATTENTION: Starting and stopping with the start/stop terminals does not disconnect AC power in the stop position. A hardwired AC power disconnection switch must be mounted between the AC source and terminals L I and L2. This is required, as the DC3 drive does not have an armature loop contactor. -
Page 74: Figure 18. Run/Jog Switch Connection To Speed Adjust Potentiometer
Application Notes 10K OHM SPEED ADJUST POTENTIOMETER PUSHBUTTON Figure 18. RUN/JOG Switch Connection to Speed Adjust Potentiometer... -
Page 75: Troubleshooting
Troubleshooting ATTENTION: This equipment is at line voltage when AC power is connected. Disconnect and lockout all ungrounded conductors of the AC power line before working on the unit. Failure to observe this precaution could result in severe bodily injury or loss of life. Before troubleshooting Perform the following steps before starting any procedure in this section:... -
Page 76: Diagnostic Leds
Troubleshooting Diagnostic LEDs DC3N Series drives are equipped with two diagnostic LEDs (see Figure 19 for LED location). The red CURRENT LIMIT LED turns on whenever the drives reaches current limit and stays off whenever the drive is not in current limit (normal operation). - Page 77 Troubleshooting Problem Possible Suggested Causes Solutions Line fuse blows 1. Line fuses are 1. Check that line the wrong size. fuses are correct for motor size (page 13). 2. Motor cable or 2. Check motor armature is cable and shorted to armature for ground.
- Page 78 Troubleshooting Problem Possible Suggested Causes Solutions Line fuse does 1. Speed adjust 1. Increase the not blow, but potentiometer, speed adjust motor does not voltage external potentiometer, reference signal, voltage, or or current current setting. external reference signal set to zero speed.
- Page 79 Troubleshooting Problem Possible Suggested Causes Solutions Line fuse does 4. Drive is in 4. Verify that motor not blow, but current limit is not jammed. motor does not mode. Increase run (cont.) CURRENT LIMIT setting if it is set too low. 5.
- Page 80 Troubleshooting Problem Possible Suggested Causes Solutions Motor runs too 1. MIN SPD and 1. Recalibrate MIN fast at set speed MAX SPD SPD and MAX settings are too SPD. high. 2. Motor field 2. Check motor connections are field loose (shunt connections.
- Page 81 Troubleshooting Problem Possible Suggested Causes Solutions Motor runs too 1. Switches are set 1. Verify all switch slow or too fast incorrectly. settings. 2. MIN SPD and 2. Calibrate MIN MAX SPD not SPD and MAX calibrated. SPD. 3. Motor field not 3.
- Page 82 Troubleshooting Problem Possible Suggested Causes Solutions Motor will not 1. MAX SPD 1. Increase MAX reach the setting is too SPD setting. desired speed low. 2. IR COMP setting 2. Increase the IR is too low. COMP setting. 3. Motor is 3.
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Page 83: Block Diagram
Troubleshooting Block Diagram... -
Page 84: Terminal Descriptions
Troubleshooting Terminal descriptions Chassis drive terminals L1 (TB501) Hot terminal for AC line voltage. L2/115 (TB501) Neutral terminal for 115 VAC line voltage. L2/230 (TB501) Neutral terminal for 230 VAC line voltage. F1, F2 (TB501) Field coil connections (shunt wound motors only). Field voltage is 100/200 VDC. -
Page 85: Enclosed Drive Terminals
Troubleshooting T1, T2 (TB502) Connections to optional external tachometer. Enclosed drive terminals L1 (terminal 1) Hot terminal for AC line voltage. L2/115 (terminal 2) Neutral terminal for 115 VAC line voltage. L2/230 (terminal 3) Neutral terminal for 230 VAC line voltage. F1, F2 (terminals 4 and 5) Field coil connections (shunt wound motors only). -
Page 86: Ce Compliance
CE Compliance Reliance Electric Corporation hereby certifies that its DC3N series drives have been approved to bear the “CE” mark provided the conditions of approval (listed in Exhibit “A”) have been met by the end user. The DC3N series has been tested to the following test specifications: EN55011:1991 (emissions), EN50082-1:1992 (immunity) -
Page 87: Exhibit "A
CECompliance Exhibit “A” In addition to EMI/RFI safeguards inherent in the DC3N series’ design, external filtering is required. Reliance Electric requires the Corcom® filters listed in Table 4. If the exact filter is not available, the specifications are as follows: L = (1.73 + 0.03) milliHenries. -
Page 88: Armature Filters
CE Compliance If the end-user is using a CE-approved motor, the correct filter from Table 5 is all that is necessary to meet the EMC directives listed herein. Armature Filters If the end-user is not using a CE-approved motor, a Minarik CEXXMM filter must be deployed on the output. - Page 89 CE Compliance IMPORTANT: The filters in Table 6 must be wired to the DC output of the drive, as close to the drive as possible. The ground connection from the filter must be wired to solid earth ground (resistance less than 500 ohms); not machine ground.
- Page 90 NOTES...
- Page 91 NOTES...
- Page 92 This document, as well as more information about Reliance Electric products, can be found at www.reliance.com/drives. Publication D2-3452-4 – August 2004 © 2004 Rockwell International Corporation. All rights reserved. Printed in USA.