Carrier VFD Quick Reference Instruction Manual D2-3466-2
The information in this manual is subject to change without notice. Throughout this manual, the following notes are used to alert you to safety considerations: ! ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Important: Identifies information that is critical for successful application and understanding of the product.
! ATTENTION: When the level-sense start feature is enabled (P.054 = ON), the user must ensure that automatic start up of the driven equipment will not cause injury to operating personnel or damage to the driven equipment. In addition, the user is responsible for providing suitable audible or visual alarms or other devices to indicate that this function is enabled and the drive may start at any moment. Refer to the LiquiFlo Software Start-Up and Reference manual (D2-3410)for additional information.
! ATTENTION: Use of power correction capacitors on the output of the drive can result in erratic operation of the motor, nuisance tripping, and/or permanent damage to the drive. Remove power correction capacitors before proceeding. Failure to observe this precaution could result in damage to, or destruction of, the equipment. ATTENTION: Most codes require that upstream branch circuit protection be provided to protect input power wiring. Install the fuses recommended in table 3.
! ATTENTION: When connected to a non-regenerative common DC bus, regeneration may cause a rise in DC bus voltage. Be aware that other drives on the bus may experience an unexpected speed increase due to the high bus voltage. Failure to observe this precaution may result in bodily injury. ATTENTION: The motor shaft can rotate in either direction by up to one (1) revolution, providing minimum torque immediately after the identification procedure (initiated in H.020) has been started.
CONTENTS Chapter 1 Using This Manual 1.1 Required Publications...................................................................................... 1-1 1.2 Getting Assistance from Reliance Electric....................................................... 1-1 Chapter 2 Identifying Drive Components Using Reference Drawings and Parts Lists 2.1 VFD Chiller Installation Drawing (500A and 643A VFD) ................................. 2-1 2.2 Front View of 500 and 643 Amp VFD with Parts List (19XV04000601 rev 4.0) ..
II Carrier VFD Quick Reference
CHAPTER 1 Using This Manual The Carrier VFD Quick Reference is intended for qualified Carrier service personnel, and is to be used during start up, operation, and maintenance of the variable speed drive. 1.
1-2 Carrier VFD Quick Reference
CHAPTER 2 Identifying Drive Components Using Reference Drawings and Parts Lists Replace with 2.
2-2 Carrier VFD Quick Reference
CHAPTER 3 Using the Keypad/Display to Program, Monitor, and Control the Drive If you are unfamiliar with the detailed operation of the keypad/display, refer to chapter 3 of the LiquiFlo Software Start-Up and Reference Manual (D2-3410). Display Drive Status Keypad LEDs P.
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CHAPTER 4 Identifying Parameter Defaults For Carrier Drives Use the following table to identify and set the parameter defaults for Carrier drives. Important: Setting P.050 (Restore Defaults) to ON will restore the drive to Reliance defaults, not Carrier defaults. If this has been done, set the following parameters to restore Carrier defaults. Parameter No. P.000 P.001 P.002 P.003 P.004 P.005 P.
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CHAPTER 5 Verifying the Installation Record the following job information: 1. Job Name: 2. Job Number: 3. City: 4. State: 5. Zip Code: Record the following nameplate information: 1. Chiller Serial Number: 2. VFD Part Number: 3. VFD Serial Number: 4. Motor Rated Load Amps: 5. Incoming Voltage: 6. Incoming Frequency: 7. Carrier Part Number and Revision: 8.
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CHAPTER 6 Troubleshooting the Drive This chapter describes how to troubleshoot the drive and the equipment that is needed to do so. 6.1 Test Equipment Needed To Troubleshoot An isolated multimeter will be needed to measure DC bus voltage and to make resistance checks. Note that dedicated troubleshooting test points are not provided. 6.2 Verifying That DC Bus Capacitors Are Discharged ! ATTENTION: DC bus capacitors retain hazardous voltages after input power has been disconnected.
Initial DC Bus Measurement Points NEG (-) POS (+) TP1 TP2 Figure 6.
Initial DC Bus Measurement Points Figure 6.
6.3 Checking the Power Modules and Motor with Input Power Off Use the following procedure to check the drive’s Power Module circuitry with power off: ! ATTENTION: DC bus capacitors retain hazardous voltages after input power has been disconnected. After disconnecting input power, wait five (5) minutes for the DC bus capacitors to discharge and then check the voltage with a voltmeter to ensure the DC bus capacitors are discharged before touching any internal components.
Table 6.1 – Resistance Checks Input Diode No. Meter Connection (+) (-) 1 * SCR1 2 * SCR2 3 * SCR3 4 * SCR4 5 * SCR5 6 * SCR6 7 SCR1 ** 8 SCR2 ** 9 SCR3 ** 10 SCR4 ** 11 SCR5 ** 12 SCR6 ** Component is OK if resistance (R) is: 10 < R < 1 megohm Component is defective if: Continuity (short circuit) or open when the meter is connected with reversed polarity. * (+) DC Bus Volts power terminal ** (-) DC Bus Volts power terminal Table 6.
6.4 Troubleshooting the Drive Using Error Codes The drive can display two kinds of error codes, called alarm and fault codes, to signal a problem detected during self tuning or drive operation. Fault and alarm codes are shown in tables 6.2 and 6.3. A special type of fault code, which occurs rarely, is the fatal fault code. If the code you see is not in tables 6.2 or 6.3, refer to section 6.5 . Alarm Codes An alarm condition is signified by a two- or three-letter code flashing on the display.
6.4.1 Identifying Alarm Codes and Recovering Drive alarm codes are shown in table 6.2. Note that the alarm code will only be displayed for as long as the problem exists. Once the problem has been corrected, the alarm code will disappear from the display. Table 6.2 – List of Alarm Codes Code HIdc Alarm Description High DC bus voltage Alarm Cause The DC bus is charged above the trip threshold. (If U.018 > 415, DC bus is above 741 VDC. If U.018 ≤ 415, DC bus is above 669 VDC.
6.4.2 Identifying Fault Codes and Recovering ! ATTENTION: DC bus capacitors retain hazardous voltages after input power has been disconnected. After disconnecting input power, wait five minutes for the DC bus capacitors to discharge and then check the voltage with a voltmeter to ensure the DC bus capacitors are discharged before touching any internal components. Failure to observe this precaution could result in severe bodily injury or loss of life. Drive fault codes are shown in table 6.3.
Table 6.3 – List of Fault Codes (Continued) Code HU Fault Description High DC bus voltage IPL Input phase loss LU Low DC bus voltage Fault Cause DC bus voltage too high (capacitor protection). Deceleration time too short. Voltage ripple on DC bus due to missing input phase or an imbalance between phases. DC bus voltage too low. Line dip too long (P.042). Input rectifier diodes defective. nCL Network comm loss Communications with the AutoMax network have been lost.
Table 6.3 – List of Fault Codes (Continued) Code OCb OCd OF OH OL OPL OSP PUc PUn PUo SF 6-10 Fault Description Overcurrent (at DC braking) Overcurrent (at deceleration) Fault Cause DC voltage too high. Corrective Action Check parameters H.006, H.007. Overcurrent condition occurred while decelerating. Deceleration time too short. Drive has exceeded maximum allowable output frequency. Regenerating energy is too high. Stability or slip compensation circuit adds frequency reference. If H.
Table 6.3 – List of Fault Codes (Continued) Code SrL UAr UbS Fault Description Communication loss between Regulator/PC/OIM Spurious host PC comm interrupt Asymmetrical bus fault. Look at the 3 LEDs on the Power Module Interface board. They indicate which fault has occurred by flashing in unison. 1 = Input Ground Fault; 2 = Asymmetrical Bus; 3 = Slow Ramp Rate of DC Bus Fault Cause Serial port communication cable, PC or OIM communication port setup.
Step 2. Press the ▼ key until Err is displayed. Step 3. Press the ENTER key. If no faults have occured, Err will be displayed again. If only one fault has occurred, the fault code will be displayed as the first entry in the log. If more than one fault has ocurred, the first entry is the latest fault that occurred. Step 4. Press the ▲ or the ▼ key. The display steps through the error log entries, which are numbered 0 through 9 (maximum). Step 5. Press the ENTER key.
Step 6. Press the ▼ key. The display shows the time stamp, which is based on a 24-hour clock. Use the arrow keys to move between the day and time data. Step 7. Press the PROGRAM key, which displays the error log entries again.The display shows the error log entry viewed prior to or associated with the time stamp. Step 8. Repeat steps 4 though 7 for each additional error log entry to view the time and date for each error log entry. Step 9.
6.5 Identifying Fatal Fault Codes and Recovering Fatal fault codes are distinguished by the letter F preceding the code. They normally indicate a malfunction of the microprocessor on the Regulator board. In some cases, fatal fault codes can be reset and the drive can be re-started. Table 6.4 lists the fatal fault codes which can be reset. If any other fault code appears on the display, you will need to replace the Regulator board.
6.6 Indentifying PMC Board Fault Codes and Recovering ! ATTENTION: Viewing the PMC board LEDs requires electrical circuits to be exposed. Stay clear if unit must be running. Disconnect and lock out or tag power source if contact must be made. Failure to observe this precaution could result in severe bodily injury or loss of life. Table 6.5 lists PMC board fault codes. These faults can be identified using the three LEDs located on the Regulator board. Table 6.
Step 8. Press UP ARROW until P.048 is displayed. Step 9. Press ENTER. Step 10. Press UP or DOWN ARROW to select UEC or U-H mode. Step 11. Press ENTER. Observe SELF is displayed briefly. Step 12. Press UP or DOWN ARROW until P.006 is displayed. Step 13. Press ENTER. Step 14. Press UP ARROW until 75 is displayed. Step 15. Press ENTER. Step 16. Press UP ARROW until R998 is displayed. Step 17. Press ENTER. Step 18. Press UP ARROW until ON is displayed. Step 19. Press ENTER. Step 20. Press UP ARROW until P.
DIF Documentation Improvement Form Use this form to give us your comments concerning this publication or to report an error that you have found. For convenience, you may attach copies of the pages with your comments. After you have completed this form, please return it to: Rockwell Automation / Reliance Electric Drives Technical Documentation 6040 Ponders Court Greenville, SC 29607 Fax: 864-284-5483 Publication Name: LiquiFlo 1.5 AC Drive, Hardware Reference Version 1.
Publication D2-3466-2 - May 2005 -- Supercedes D2-3466-1 - June 2002 Copyright ©2005 Ro ckwell Automation, Inc. All Rights Reserved. Printed in USA.
