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	Question	Posted Date
	UV2 -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: Uv2 Description: UV2 (Control power supply fault) Voltage fault of control power supply is detected. Causes and Corrective Actions: Cycle power. If the fault remains. replace the drive. A complete list of fault codes is available in the V7 instruction manual. Find the manual on the Yaskawa website. Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3PNQ Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	UV2 -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text:UV2 CTL PS Undervolt Description: Control Power Supply Undervoltage. Undervoltage of the control circuit when running. Causes: External load connected pulling down the Drive power supplies Corrective Actions: Cycle power off and on to the Drive - - - Repair or replace the Power PCB/Gate Drive PCB - - - Remove all control wiring and test Drive. For information on resetting a fault, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM.E7.01, TM.F7.01 and TM.P7.01. Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, P7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P4QCZ Published Date: 11/16/2009 Share \| Rate Rate this article :	11/16/2009
	UV2 - Fault Code Description Posted Date: 06/20/2013 Answer: Digital Operator Display Text: UV2 CTL PS Undervolt Description: Undervoltage of the control circuit when running 230 V Units - 30kW ~ 75kW, monitors the (-15V) power supply 460 V Units - 55kW ~ 160kW, monitors the (-15V) power supply Possible Cause(s): External load connected pulling down the inverter power supplies. Corrective Action: Repair or replace the power/gate drive board There is other related information on this FAQ, see "Link to related files" below. For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5NZQXQ Published Date: 06/20/2013 Share \| Rate Rate this article :	06/20/2013
	UV1 -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text:UV1 DC Bus Undervolt Description:DC Bus Undervoltage: The DC bus voltage is less than or equal to L2-05 208-240Vac: Trip point is less than or equal to 190Vdc 480Vac: Trip point is less than or equal to 380Vdc. Causes:Low input voltage at R/L1, S/L2 and T/L3 - - - The acceleration time is set too short - - - Voltage fluctuation of the input power is too large Corrective Actions:Check the input circuit and increase the input power to within specifications - - - Extend the time in C1-01 - - - Check the input voltage. For information on resetting a fault, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM.E7.01, TM.F7.01 and TM.P7.01. Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, P7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P4Q7X Published Date: 11/16/2009 Share \| Rate Rate this article :	11/16/2009
	UV1 - Fault Code Description Posted Date: 06/20/2013 Answer: Digital Operator Display Text: UV1 DC Bus Undervolt Description: Undervoltage of the main circuit when running. 230 V Units - trip point 190 V DC or less 460 V Units - trip point 380 V DC or less 600 V Units - trip point 546 V DC or less Possible Cause(s): Single phase condition on the input, low input voltage at L1, L2, and L3 Corrective Action: Check the three phase input voltage, verify L2-05 for 515/G5 units. For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5HHP Drive, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5NZQR6 Published Date: 06/20/2013 Share \| Rate Rate this article :	06/20/2013
	UL3 -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: UL3 Description: When under torque is detected, drive performs operation according to the preset setting of constant n117. Causes and Corrective Actions: Parameter n118 up to the lowest value allowed for the machine. A complete list of fault codes is available in the V7 instruction manual. Find the manual on the Yaskawa website. Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3JQK Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	UL3 -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text:UL3 Undertorq Det 1 Description:Undertorque Detection 1 Drive output current < L6-02 for more than the time set in L6-03. Causes:Motor is underloaded Corrective Actions:Ensure the values in L6-02 and L6-03 are appropriate - - - Check application/machine status to eliminate fault. For information on resetting a fault, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM.E7.01, TM.F7.01 and TM.P7.01. Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, P7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P4Q5A Published Date: 11/16/2009 Share \| Rate Rate this article :	11/16/2009
	UL3 (blinking) -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: UL3 (blinking) Description: UL3 (Under torque detection) V/f mode: Drive output current fell below the preset value in parameter n118. Vector mode: Motor current or torque fell below the preset value in parameter n097 and n118. Causes and Corrective Actions: Load (output current or output torque) is too low. Check the driven machine and correct the cause of the fault, or decrease the value of parameter n118. A complete list of fault codes is available in the V7 instruction manual. Find the manual on the Yaskawa website. Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3K42 Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	The VG3 or VCD703 - Vector Drive uses terminals 30 and 31 as inputs for a motor thermistor. With no thermistor connected, the drive faults immediately. Is it possible to use a motor without a thermistor? Posted Date: 06/07/2007 Answer: Yes. In parameter On-02, change the second digit from the right [x x 1 x] from a "0" to a "1". This will allow "Control without thermistor". Product Group/Line: Inverter Drives, VG3 VCD703 Drive Topic/Sub Topic: Ask a Technical Question, Programming, Protective Features Document Number: DRV-5GYLUY Published Date: 06/07/2007 Share \| Rate Rate this article :	06/07/2007
	The V7 Drive Jog Reference (S7) command is given. Why doesn't the motor move? Posted Date: 07/13/2004 Answer: The Jog Reference is not a 'run' command. It merely switches the speed reference from the selected frequency reference (terminal FR for example) to the internal Jog frequency reference (n032). To make the drive run at jog frequency, energize both the run command (S1) and the Jog Reference(S7). As an alternative to wiring a second digital input: A "Jog Forward" command can be achieved on the V7 by adding a diode (common Radio Shack rectifier diode). The following conditions have to be met... 1. The digital inputs must be set to "NPN" . 2. The drive must be set for "2-wire control" Add the diode between the jog input (S7 for this example) and the Run input. Anode towards S1, and Cathode towards S7. Note: Earlier versions of the V7 Drive were named GPD 315/V7, GPD 315 or VS Mini V7. Product Group/Line: Inverter Drives, V74X Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Troubleshooting, Programming Document Number: DRV-5FLM8A Published Date: 07/13/2004 Share \| Rate Rate this article :	07/13/2004
	The P5/506 bypass panel "Fault" light is ON, but no fault code is shown on the keypad display. What's wrong? Posted Date: 06/11/2014 Answer: See attached. Attachments: 30KB Product Group/Line: Inverter Drives, P5 GPD506 Drive, P5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Bypass Function, Troubleshooting Document Number: DRV-5GVRHX Published Date: 06/11/2014 Share \| Rate Rate this article :	06/11/2014
	The Motionworks IEC software stopped running after installing InteractX software? How can I recover from this? Posted Date: 03/04/2010 Answer: The InteractX software removes a required registry item required by MotionWorks IEC. To correct this issue: 1. Navigate to the installed location of Motionworks IEC (usually C:\Program Files\Yaskawa\MotionWorks IEC Pro). 2. Run the SETUPEX.EXE file by double clicking. 3. Reboot the computer. MotionWorks IEC should be able to run again. Product Group/Line: Controllers, MotionWorks IEC Topic/Sub Topic: Ask a Technical Question, Software Document Number: MTN-837SX6 Published Date: 03/04/2010 Share \| Rate Rate this article :	03/04/2010
	The MotionWorks IEC Hardware Configuration software is unable to connect to the MPiec controller. What should I check to correct the problem? Posted Date: 09/23/2013 Answer: Please see the attached PDF for a detailed explanation. Attachments: 446KB Product Group/Line: Controllers, MotionWorks IEC Topic/Sub Topic: Ask a Technical Question, Software Document Number: MTN-9AJMA2 Published Date: 09/23/2013 Share \| Rate Rate this article :	09/23/2013
	The J7 drive will only allow the parameter to viewed but not changed.What must be done to change parameter values in the J7/305 AC drive? Posted Date: 06/11/2014 Answer: See attached. Attachments: 44KB Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Programming, Start Up, Troubleshooting Document Number: DRV-5GSUDM Published Date: 06/11/2014 Share \| Rate Rate this article :	06/11/2014
	The HV600 is described as a fan and pump drive. Is there new pump control functionality built into the drive? Posted Date: 09/03/2019 Answer: Yes. Several new pump-specific control functions come as standard to provide easy setup, save energy costs, and help assure pump protection. Product Group/Line: Inverter Drives, HV600 Drive Topic/Sub Topic: Ask a Technical Question, Product Launch Document Number: INV-E0E1V4 Published Date: 09/03/2019 Share \| Rate Rate this article :	09/03/2019
	The Hardware Configuration launches, but does not appear after using dual displays, is there a way to reset its position? Posted Date: 08/04/2014 Answer: Yes. Please see the attached document. Attachments: 245KB Product Group/Line: Controllers, MotionWorks IEC, MP2000iec Series, MP2300Siec, MP2310iec, MP2600iec, MP3200iec Topic/Sub Topic: Ask a Technical Question, Adjustments, Environment, Operation, Programming, Troubleshooting Document Number: MTN-9GRS4X Published Date: 08/04/2014 Share \| Rate Rate this article :	08/04/2014
	The GUI displays mm. How can it change to inches? Posted Date: 07/23/2021 Answer: To change the units used in the Position Display navigate to the Machine Configuration page, drop down cartesian axes, check the box for Override and choose your preferred units to be used in the Position Display. To change the units of your commands in a G Code file you can either execute a G20 (set commands to be in inches) or a G21 (set commands to be in mm). It is common that a G Code file will specify G20 or G21 at the beginning of the file. Product Group/Line: Yaskawa Compass, Controllers Topic/Sub Topic: Ask a Technical Question Document Number: CNT-8C92Q8 Published Date: 07/23/2021 Share \| Rate Rate this article :	07/23/2021
	The GPD 515/G5 displays a parameter, but does not let me change it. Why? Posted Date: 07/13/2004 Answer: Parameter A1-01 controls access to all parameters that are available in the control method being used. A setting of 'Advanced' allows all of the available parameters of the current control method to be changed. Some parameters are not available in some control methods. Refer to Appendix 1 in the technical manual. Product Group/Line: Inverter Drives, G5 GPD515 Drive, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Troubleshooting, Programming Document Number: DRV-5FLM9Y Published Date: 07/13/2004 Share \| Rate Rate this article :	07/13/2004
	The GPD/515G5 instruction manual (TOE-S616-10.13) (pages 21-22) specifies that input fuses should be used on the installation of these drives.--Is fusing required or is a circuit breaker sufficient protection for the inverter?--If fusing is not required, what characteristics of MCCB should used be to protect the drive adequately? Posted Date: 06/08/2007 Answer: In the U.S., two types of branch circuit protection are required by local and national codes, branch circuit overload protection and branch circuit short-circuit protection. This protection is necessary to protect the circuit feeding the device (mainly input wiring). See attached for full details. Attachments: 17KB Product Group/Line: Inverter Drives, G5 GPD515 Drive, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Circuit Protection Document Number: DRV-5T6SRU Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	The E7L will not run the motor in Hand or Auto mode. What can cause this? Posted Date: 10/27/2005 Answer: Possible Solution: 1. The ribbon cable UWR00562-1 may be partially plugged or loose between Electronic Bypass Keypad (A3) and Electronic Bypass Control PCB (A2). Attempt to reseat or push the ribbon connector in as needed on one, or both ends to correct this problem. (See attachment.) Other symptoms of this problem include: 1. Drive LED flashes. 2. Stop LED is lit. 3. Contol Power LED is lit. 4. No Ready LED. Refer to TM.E7L.01 the E7L Drive Bypass Technical Manual for more information. Attachments: 97KB Product Group/Line: Inverter Drives, E7L Drive Bypass Topic/Sub Topic: Ask a Technical Question, Operation, Start Up, Troubleshooting Document Number: DRV-5VWPB6 Published Date: 10/27/2005 Share \| Rate Rate this article :	10/27/2005
	The E7 drive inside the bypass enclosure unit doesn't have the Hand, Off or Auto buttons that are shown in the E7 manual. How can the drive be run locally? Posted Date: 07/13/2004 Answer: To limit confusion, the Hand, Auto and Off buttons on the keypad were disabled and a membrane/sticker was placed over the buttons on the face of the keypad. This is done only on units that have a seperate H-O-A switch on the door of the enclosure.These functions can only be accessed manually, by adjusting the Hand/Off/Auto switch located on the front panel of the bypass unit. They are peripheral methods for changing operation methods. The purpose for this is to limit confusion by having only one Hand/Off/Auto control. Product Group/Line: Inverter Drives, E7B Drive Bypass Topic/Sub Topic: Ask a Technical Question, Bypass Function, Keypad-Operator, Programming, Start Up Document Number: DRV-5GRV4D Published Date: 07/13/2004 Share \| Rate Rate this article :	07/13/2004
	The E7B bypass unit with the serial communications, option J or option L control comes set up for the start/stop as well as the speed reference to be controlled through serial communication. Is it possible to maintain start/stop control through serial communication while using an analog signal for speed reference? Posted Date: 06/11/2014 Answer: See attached. Attachments: 18KB Product Group/Line: Inverter Drives, E7B Drive Bypass Topic/Sub Topic: Ask a Technical Question, Bypass Function, Networks, Programming Document Number: DRV-5GZPRR Published Date: 06/11/2014 Share \| Rate Rate this article :	06/11/2014
	The Drive Wizard .PARMS file was edited with another program (ie. Microsoft Word, Notepad) and saved. When reopened with DriveWizard, an error code of "File Error" was displayed on-screen. What is the problem and how can this be corrected? Posted Date: 09/13/2012 Answer: See attached. For additional information, refer to TM.DW.04 the DriveWizard Manual. Attachments: 157KB Product Group/Line: Inverter Drives, DriveWizard Software, DriveWizard Software 6.0 Topic/Sub Topic: Ask a Technical Question, Drive Wizard, Software, Troubleshooting Document Number: DRV-5W4JY4 Published Date: 09/13/2012 Share \| Rate Rate this article :	09/13/2012
	The Alarm output on the CACR HR Servopack no longer works. It is always open (or closed) regardless if the servopack is in an alarm state or not. What causes this situation? Posted Date: 03/12/2002 Answer: Assuming the Servopack 's Alarm output is wired correctly, the most common problem is that the relay's coil resistance is too low and the output has "burned out." The output photo-transistor used on the HR- Servopack (as well as most all of Yaskawa's servo products) is designed to handle a maximum of 50mA through it. The maximum voltage level allowed across the photo-transistor when OFF is 30VDC. Therefore, the safest selection is a relay coil with at least 600-ohms. If the power supply is a regulated 24VDC, then 480-ohms is acceptable. The second most common problem is connecting a relay with a "fly wheel diode" incorrectly and shorting the power supply accross the output. Remember that the Alarm outptus are ON (conducting) when NO ALARM is present. Therefore, if the relay's coil resistance is too low, it will damage the output. Attachments: 606KB Product Group/Line: Servo Products, CACR-HR Topic/Sub Topic: Ask a Technical Question, Troubleshooting, Wiring Document Number: MNEN-5CJML8 Published Date: 03/12/2002 Share \| Rate Rate this article :	03/12/2002
	The AC drive repeatedly displays an OV (Overvoltage) fault when the inverter is stopping. What causes this? Posted Date: 06/11/2014 Answer: See attached. Attachments: 28KB Product Group/Line: Inverter Drives, General Inverter Drives Topic/Sub Topic: Ask a Technical Question, Dynamic Braking, Protective Features, Starting - Stopping, Troubleshooting Document Number: DRV-5GSUAZ Published Date: 06/11/2014 Share \| Rate Rate this article :	06/11/2014
	The "sleep" function can only be used when PID is enabled. If an analog (0-10VDC or 4-20mA) signal for speed reference is used, is there any way to use "sleep" without enabling PID? Posted Date: 11/29/2005 Answer: Yes. The minimum frequency must be kept at 1.5 Hz, and the "Prohibit Frequency" parameters will need to be used. Set parameter n062 equal to the midway point between 1.0Hz and the desired sleep frequency. Set parameter n064 equal to the difference between the midway point and 1.0 Hz. Example: A sleep frequency of 20.0 Hz is desired. 20.0 - 1.0 = 19.0 Difference = 19.0/2 = 9.5 Midway point = 1.0 + 9.5 = 10.5 Hz Set n062 = 10.5 Hz Set n064 = 9.50 Hz -- When starting up, the output frequency will remain at 0.0 Hz until the reference signal reaches a minimum of 20.0 Hz. -- With a decreasing frequency reference, the output frequency will level off at 20.0 Hz as the reference descends below 20.0 Hz. When the reference goes below the midpoint (10.5 Hz in the example), the output frequency will then ramp down to 0.0 Hz. For more information, please see TM4506. Product Group/Line: Inverter Drives, P5 GPD506 Drive, P5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Applications, Programming, Speed Control Document Number: DRV-5HLNCZ Published Date: 11/29/2005 Share \| Rate Rate this article :	11/29/2005
	SVE -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: SVE Zero Servo Fault Description: In the zero servo mode, the motor shaft has rotated 10,000 non-quadrature PG pulses from the home position. Possible Cause(s): Torque limit or zero servo gain set too low, load torque excessively Corrective Action: Verify the program parameters B9-01 zero servo gain and torque limit settings L7-01 ~ L7-02, check for noise on the PG signals. For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5 GPD515 Drive, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P2HRQ Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	Specification of 12 pulse input transformer for GPD505/506- PC5/P5 series AC drive. Posted Date: 06/12/2014 Answer: See attached. Attachments: 21KB Product Group/Line: Inverter Drives, P5 GPD506 Drive, P5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Harmonics Document Number: DRV-5JWSZL Published Date: 06/12/2014 Share \| Rate Rate this article :	06/12/2014
	Sometimes my machine power-up position is incorrect even though I have an absolute encoder on the motor. What is causing this issue? Posted Date: 05/19/2015 Answer: The absolute encoder rollover value must be properly calculated and stored in servopack parameter Pn205. This parameter is the Multi-Turn Limit Setting. It is necessary to set this value properly for rotary applications which move infinitely in one direction and utilize an absolute encoder. Example applications include indexing tables, spindles, turrets, winders, and conveyors. Pn205 allows the absolute encoder to synchronize itself with the mechanical load's position. The value must be chosen so that the number of turns tracked by the absolute encoder of the motor is an integer multiple of the desired mechanical cycle of the mechanism. When Pn205 is set incorrectly, the mechanism's home position may not be correct after a power cycle. Please see the attached documents that illustrate how to calculate Pn205 with three example applications. IMPORTANT NOTE: After making a change to Pn205 and cycling the power, the drive will display alarm A.CC0 (Multi-turn Limit Disagreement Error). This alarm is fixed by executing the "Multiturn Reset" function found in the web server (section "Machine Operations", tab "Drive Pn"). After executing this function, cycle power again to clear the alarm. Attachments: 106KB 292KB Product Group/Line: Controllers, Servo Products, MP2000iec Series, MP2300Siec, MP2310iec, MP2600iec, MP3200iec, SGDV MP2600iec, SGDV Analog, SGDV EtherCAT, SGDV Indexer, SGDV MECHATROLINK-II, SGDV MECHATROLINK-III, SGDV SigmaLogic Topic/Sub Topic: Ask a Technical Question, Adjustments, Alarm, Application Example, Applications, Hardware, Instructions, Operation, Parameters, Software, Specifications, Start Up - Installation, Troubleshooting Document Number: MTN-99GLV2 Published Date: 05/19/2015 Share \| Rate Rate this article :	05/19/2015
	Some shape cutting OEMs consider their front-end interface as their differentiating feature over competitors. How would you make Compass attractive to OEMs like this? Posted Date: 02/09/2021 Answer: One key benefit of Compass is the OEM branding. Typically, OEMs who already own their custom front end may find their front end outdated and difficult to support. Yaskawa Compass provides OEMs with a complete and flexible solution while giving them the ability to maintain their own unique branding. Product Group/Line: Yaskawa Compass, Controllers Topic/Sub Topic: Ask a Technical Question Document Number: CNT-8M7R18 Published Date: 02/09/2021 Share \| Rate Rate this article :	02/09/2021
	Should motor cable length be a concern when installing an AC drive?, Is it ok to have a motor 300ft from the drive? Posted Date: 06/12/2014 Answer: See attached. Attachments: 17KB Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, G5 Drive 600 Volt, G5HHP Drive, G7 Drive, P7 Drive, VS mini Drive Topic/Sub Topic: Ask a Technical Question, Applications, Installation, Motors, Wiring Document Number: DRV-5H8NHJ Published Date: 06/12/2014 Share \| Rate Rate this article :	06/12/2014
	Serial communication is lost intermittently between the building automation system (BAS) and a Lonworks board on the GPD506 / P5 drive. What might be causing this? Posted Date: 06/12/2014 Answer: See the attached for several tips that may help resolve intermittent serial communication loss with Lonworks and the GPD506/P5. For further information, please refer to TM4506. Attachments: 42KB Product Group/Line: Inverter Drives, Network Comms-Lonworks, P5 GPD506 Drive, P5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Troubleshooting Document Number: DRV-5JEVFE Published Date: 06/12/2014 Share \| Rate Rate this article :	06/12/2014
	SER - Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: SER (blinking) Description: SEr (Sequence error) Drive receives LOCAL / REMOTE select command or communication / control circuit terminal changing signals from the multifunction terminal while the drive output is ON. Causes and Corrective Actions: Check the external circuit (sequence). A complete list of fault codes is available in the V7 instruction manual. Find the manual on the Yaskawa website. Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3JBV Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	SC - Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: SC Short Circuit Description: The inverter output is short-circuited. Possible Cause(s): Shorted inverter output phase to phase, shorted motor, locked rotor. Corrective Action: Remove the motor and run the inverter without the motor. Check the motor for a phase to phase short. Check the inverter for a phase to phase short at the output. For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5HHP Drive, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5NZS4Y Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	RR -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: RR DynBrk Transistr Description: The braking transistor has failed. 230V Units - 0.4kW ~ 7.5kW 460V Units - 0.4kW ~ 15kW Possible Cause(s): Shorted braking transistor, high DC bus voltage, defective braking Corrective Action: Replace defective transistor or resistor, monitor DC bus level. TFor information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5HHP Drive, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P2HH8 Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	RR -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text:RR DynBrk Transistr Description:Dynamic Braking Transistor. The dynamic braking transistor failed. Causes: Shorted dynamic braking transistor, high DC bus voltage, defective dynamic braking resistor. Corrective Actions:Cycle power off and on to the Drive - - - Replace defective dynamic braking transistor or resistor - - - Monitor DC bus voltage. For information on resetting a fault, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM.E7.01, TM.F7.01 and TM.P7.01. Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, P7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P4Q3A Published Date: 11/16/2009 Share \| Rate Rate this article :	11/16/2009
	RH -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text:RH DynBrk Resistor Description:Dynamic Braking Resistor. The protection of the dynamic braking resistor based on setting of L8-01. Causes:Overhauling load, extended dynamic braking duty cycle, defective dynamic braking resistor. Corrective Actions:Verify dynamic braking duty cycle - - - Monitor DC bus voltage - - - Replace dynamic braking resistor. For information on resetting a fault, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM.E7.01, TM.F7.01 and TM.P7.01. Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, P7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P4PT2 Published Date: 11/16/2009 Related Files: User Manual for P7 Drive E7 Drive User Manual User Manual for F7 Drive Share \| Rate Rate this article :	11/16/2009
	RH -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: RH DynBrk Resistor Description: The braking resistor temperature has exceeded the allowable value. (Protects Yaskawa 3% duty cycle resistors only) Can be selected as a minor fault by using the multifunction outputs. Possible Cause(s): Overhauling load, extended braking duty cycle, defective braking Corrective Action: Verify braking duty cycle, monitor DC bus voltage, replace resistor. For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P2HL4 Published Date: 06/08/2007 Related Files: Technical Manual for GPD515/G5 Drive Technical Manual for GPD506/P5 Drive Troubleshooting Manual for GPD 506/P5 and GPD 515/G5 - Section One Share \| Rate Rate this article :	06/08/2007
	Product Demo Documentation: Sigma FSP Posted Date: 06/26/2013 Answer: This FAQ contains links to the supporting files for the Sigma FSP demo. Search for the document numbers listed below. Click any of the activated links below to open the requested file. Vital Statistics* General: Demo Vital Statistics - Product and Tradeshow (Doc # GG.MCD.07.008) Demo Program Example Code: Sigma FSP - Demo Program (Doc # EC.MCD.06.058) Technical Note: Sigma FSP - How to Demo (Doc # TN.MCD.06.059) Schematics None available at this time. Videos and Graphics None available at this time. *Partner login required Product Group/Line: Servo Products, Sigma FSP Topic/Sub Topic: Ask a Technical Question, Product Demo Document Number: MTN-6VYLZD Published Date: 06/26/2013 Share \| Rate Rate this article :	06/26/2013
	Product Demo Documentation: NS300/NS500 Posted Date: 06/26/2013 Answer: This FAQ contains links to the supporting files for the NS300/500 demo. Search for the document numbers below to locate your file. Vital Statistics* General: Demo Vital Statistics - Product and Tradeshow (Doc # GG.MCD.07.008) Demo Program Example Code: NS300/500 - Master Ladder Example (requires MP940) (Doc # EC.MCD.05.105) Example Code Manual: NS300/500 - Master Ladder (Doc # EM.MCD.05.106) Schematics None available at this time. Videos and Graphics None available at this time. *Partner login required Product Group/Line: Controllers, NS300 DeviceNet, NS500 Profibus Topic/Sub Topic: Ask a Technical Question, Product Demo Document Number: MTN-6VYLYV Published Date: 06/26/2013 Related Files: Example Code Manual: NS300/NS500 - Master Ladder Share \| Rate Rate this article :	06/26/2013
	Product Demo Documentation: MP940 Posted Date: 06/26/2013 Answer: This FAQ contains links to the supporting files for the MP940 demo. Search the document numbers below to locate your files. Vital Statistics* General: Demo Vital Statistics - Product and Tradeshow (Doc # GG.MCD.07.008) Demo Program Example Code: MP940 - MW+ Template Program (Doc # EC.MCD.03.514) Example Code Manual: MP940 - MW+ Template Program (Doc # EM.MCD.03.514) Schematics None available at this time. *Requires partner login Product Group/Line: Controllers, MotionWorks Plus Software, MP940 Machine Controller Topic/Sub Topic: Ask a Technical Question, Product Demo Document Number: MTN-6VYLY9 Published Date: 06/26/2013 Related Files: Example Code Manual: MP940 - MW+ Template Program Share \| Rate Rate this article :	06/26/2013
	Product Demo Documentation: MP2300 Posted Date: 06/26/2013 Answer: This FAQ contains links to the supporting files for the MP2300 demo. Search the file numbers below to locate your file Vital Statistics* General: Demo Vital Statistics - Product and Tradeshow (Doc # GG.MCD.07.008) Demo Program* Example Code: MP2300 - Demo Kit Function Block Program for MPE770 (Doc # EC.MCD.06.125) Example Code: MP2300 - Demo Kit Function Block Program for MPE720 (Doc # EC.MCD.06.126) Example Code Manual: MP2300 - PLC Open Demo Kit Function Block Program (Doc # EM.MCD.06.118) Schematics Not available at this time. Videos and Graphics* Graphic: MP2300 - Product Demo (Doc # MP.MCD.07.009) *Partner login required Product Group/Line: Controllers, MotionWorks Software, MP2200, MP2300 Topic/Sub Topic: Ask a Technical Question, Product Demo Document Number: MTN-6VYLVK Published Date: 06/26/2013 Share \| Rate Rate this article :	06/26/2013
	Power Line Harmonics and Installation Considerations for AC and DC Drives Posted Date: 06/22/2006 Answer: See the attached. Attachments: 129KB Product Group/Line: Inverter Drives, F7 Drive Topic/Sub Topic: Ask a Technical Question, Harmonics, Isolation Transformers, Power Quality, Reactors Document Number: DRV-64VLZY Published Date: 06/22/2006 Share \| Rate Rate this article :	06/22/2006
	PGO -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: PGO PG Open Description: Feedback pulses are not received by the PG option board. Possible Cause(s): The Pulse Generator feedback wires may be broken or not properly connected to the PG feedback option board. Corrective Action: Check for a broken wire or a loose connection from the Pulse Generator, verify the program settings. For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5 GPD515 Drive, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P2HF9 Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007
	PF -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text: PF Input Pha Loss Description: Input Phase Loss Drive input power supply has an open phase or has a large imbalance of input voltage. Causes: Open phase on the input of the Drive - - - Loose terminal screws at R/L1, S/L2 or T/L3. - - - Momentary power loss occurred - - - Input voltage fluctuation too large - - - Parameter L8-06 value is set incorrectly. Corrective Actions:Check the input voltage - - - Tighten the terminal screws - - - Check the input voltage - - - Check the input voltage - - - Adjust L8-06 according to your application. The higher the value the less sensitive it becomes. For information on resetting a fault, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM.E7.01, TM.F7.01 and TM.P7.01. Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, P7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P4PN6 Published Date: 11/16/2009 Related Files: User Manual for P7 Drive E7 Drive User Manual User Manual for F7 Drive Share \| Rate Rate this article :	11/16/2009
	PF - Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: PF Input Pha Loss Description: Inverter input power supply has an open phase. Large imbalance of input voltage. Possible Cause(s): Open phase on the input of the inverter. Loose terminal screws at terminals L1, L2, or L3. Program parameters set incorrectly (n083 for 506/P5, L8-05 for 515/G5) Corrective Action: Tighten the terminal screws, check the input voltage, verify the program settings For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5HHP Drive, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P2H8J Published Date: 06/08/2007 Related Files: Technical Manual for GPD515/G5 Drive Technical Manual for GPD506/P5 Drive Troubleshooting Manual for GPD 506/P5 and GPD 515/G5 - Section One Share \| Rate Rate this article :	06/08/2007
	OV -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text:OV DC Bus Overvolt Description:DC Bus Overvoltage 208-240Vac: Trip point is greater than or equal to 400Vdc 480Vac: Trip point is greater than or equal to 800Vdc. Causes:High input voltage at R/L1, S/L2 and T/L3 - - - The deceleration time is set too short - - - Power factor correction capacitors are being used on the input to the Drive. Corrective Actions:Check the input circuit and reduce the input power to within specifications Extend the time in C1-02 Remove the power factor correction capacitors. For information on resetting a fault, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM.E7.01, TM.F7.01 and TM.P7.01. Product Group/Line: Inverter Drives, E7 Drive, E7B Drive Bypass, E7C Drive Configured, E7E Drive Engineered, E7L Drive Bypass, E7N Narrow Bypass Package, E7S Slim Configured Drive, F7 Drive, P7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P4PKD Published Date: 11/16/2009 Related Files: User Manual for P7 Drive E7 Drive User Manual User Manual for F7 Drive Share \| Rate Rate this article :	11/16/2009
	OV -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: OV DC Bus Overvolt Description: The DC bus voltage has exceeded the overvoltage trip point while the inverter output is off. Possible Cause(s): High input voltage at L1, L2, and L3. Power factor correction capacitors are being used on the input to the inverter. Corrective Action: Check the input circuit, verify the program parameters, add a braking resistor, remove power factor correction capacitors. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P2LH2 Published Date: 06/08/2007 Related Files: Technical Manual for GPD515/G5 Drive Technical Manual for GPD506/P5 Drive Troubleshooting Manual for GPD 506/P5 and GPD 515/G5 - Section One Share \| Rate Rate this article :	06/08/2007
	OV -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: ov (blinking) Description: OV (Main circuit overvoltage) Main circuit DC voltage exceeds the over voltage detection level while the drive output is OFF. Detection level: approx. 410V or more (approx. 820V for 460V class). Causes and Corrective Actions: Check the power supply voltage. A complete list of fault codes is available in the instruction manual. Find the TM.V7.01 manual on the Yaskawa website. Product Group/Line: Inverter Drives, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3HRC Published Date: 06/08/2007 Related Files: Technical Manual for V7 and V74X Drives Share \| Rate Rate this article :	06/08/2007
	OV - Fault Code Description Posted Date: 06/20/2013 Answer: Digital Operator Display Text: OV Discription:Overvoltage of the main circuit when running. 230V Units - trip point 400V DC or more. 460V Units - trip point 800V DC or more. 600V Units - trip point 1050V DC or more. Possible Cause(s): High input voltage at L1, L2, and L3. The deceleration time is set too short. Power factor correction capacitors are being used on the input to the inverter. Corrective Action: Check the input circuit, verify the program parameters, add a braking resistor, remove the power factor correction capacitors. For information on resetting a fault on G5, E7, F7or G7 Drives, see FAQ# DRV-5P8PGJ. For more information and a complete list of fault codes see the following manuals TM4515, TM4506 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5NZRHE Published Date: 06/20/2013 Related Files: Technical Manual for GPD515/G5 Drive Technical Manual for GPD506/P5 Drive Troubleshooting Manual for GPD 506/P5 and GPD 515/G5 - Section One Share \| Rate Rate this article :	06/20/2013

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SAFETY PRECAUTIONS AND INSTRUCTIONS FOR USE OF FAQ INFORMATION!

Please read and understand the product instruction manual before installing, servicing or operating Yaskawa products. FAQ content and illustrations are provided as technical advice to augment the information in manual, not supersede it. It is not possible to give detailed instructions for all types of installation or support activities. The information described in the FAQs are subject to change without notice to improve the product or FAQ. Yaskawa assumes no responsibility for errors or omissions or damages resulting from the use of the information contained in any FAQ. All warnings, cautions and product instruction for product use must be followed. Installation, operation and maintenance should be carried out by qualified personnel. Failure to observe these and other precautions highlighted in the product manuals will expose the user to high voltages resulting in, serious injury or death. Qualified personnel are defined as individuals who are familiar with the installation, starting, operation and maintenance of Yaskawa products of the type described and have proper qualifications to perform the work.

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