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	Question	Posted Date
	On an MPiec Series Controller, what information is cleared when the "Initialize SRAM" feature is executed? Posted Date: 08/16/2013 Answer: Initializing SRAM will reset or initialize the following data: 1. Absolute Encoder offsets stored in the MPiec Controller by the MC_SetPosition function block. Use a homing procedure after initializing SRAM to ensure that the correct absolute encoder offsets are re-established. 2. IEC Global variables marked as 'Retain' data. Reload any necessary retained (non-volatile) variables. 3. Alarm history. Product Group/Line: Controllers, MP2000iec Series, MP2300Siec, MP2310iec, MP2600iec, MP3200iec Topic/Sub Topic: Ask a Technical Question, Adjustments, Alarm, Application Example, Document Clarification, Hardware, Instructions, Maintenance, Network Communications, Start Up - Installation, Troubleshooting Document Number: MTN-99YRPM Published Date: 08/16/2013 Share \| Rate Rate this article :	08/16/2013
	On an MP2600iec, is it possible to use the CN-13 latch input instead of the CN-1 latch input? Posted Date: 02/28/2017 Answer: This question comes up if the user does not have a CN-1 cable, but has a CN-13 cable for the Digital and Analog I/O, along with the External Encoder Axis. If there is no external encoder present, using the latch input on the CN-13 connector will result in a recorded position of '0' since the external encoder axis is not moving. So unfortunately no, the latch input on CN-13 is dedicated to the external encoder and cannot be reconfigured to the CN-1 latch input which is dedicated to the servo encoder. Product Group/Line: MP2000iec Series, Controllers, SGDV MP2600iec, Servo Products Topic/Sub Topic: Ask a Technical Question, Inputs - Outputs Document Number: CNT-SRV-N0EF5T Published Date: 02/28/2017 Share \| Rate Rate this article :	02/28/2017
	On a linear motor x-x'-y gantry system, what is the best method to control the two x-axes? Posted Date: 06/06/2003 Answer: The preferred method is to set-up a master/slave relationship using two axes of a motion controller. The motion controller must monitor the linear encoder feedback from both the x and x'. The x' axis must track the position of the x axis. Another alternative is to set-up a master/slave relationship using only one axis of a motion controller. The motion controller would monitor the linear encoder feedback from the x axis and command the x' axis. The x' axis would follow the encoder output directly from the x axis encoder output. Caution should be taken when implementing this method, since each amplifier operates in a different control method and different loop updates may exist. The following example lists the necessary SGDH amplifier parameter settings for a linear motor master/slave application (assuming a linear encoder grating pitch of 20 microns). Master Axis Parameter Settings: Pn000.1=2 Sets amplifier in Force Control. Pn280=20 Linear encoder grating pitch is 20 micron. Pn281=20 Sets encoder output resolution to 20 micron per 20 pulses (or 1 micron per 1 pulse). Slave Axis Parameter Settings: Pn000.1=1 Sets amplifier in Position Mode. Pn280=20 Linear encoder grating pitch is 20 micron. Pn202=256 Electron gear ratio numerator. Pn203=20 Electronic gear ratio denominator. The electronic gear ratio is used to scale the postion command input. Product Group/Line: Servo Products, SGDH Sigma II, SGLF Series, SGLG Series, SGLT Series Topic/Sub Topic: Ask a Technical Question, Applications, Integration, Start Up - Installation Document Number: PZAC-5N9KGR Published Date: 06/06/2003 Share \| Rate Rate this article :	06/06/2003
	On a GPD 506/P5 Bypass unit, what is the Normal/Test switch used for and when would it be needed in an operation? Posted Date: 07/13/2004 Answer: The Normal Test switch on the front of the Bypass panel is provided to test or setup the GPD 506/P5 without actually connecting the motor. When in Test mode, the contactor on the input of the inverter is energized bringing three phase power to the inverter but the output contactor is left de-energized. The digital operator can then be used for programming or to issue a run command so that the inverter can be checked for normal operation. Note: A fault message will be displayed on the digital operator when the Test Switch is in the Test position while in Drive mode. This switch should be in the Normal position in Drive mode. Test mode can be used when the Drive/Off/Bypass switch is in either the Off or Bypass position. Product Group/Line: Inverter Drives, P5 GPD506 Drive, P5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Bypass Function Document Number: DRV-5FLLUQ Published Date: 07/13/2004 Share \| Rate Rate this article :	07/13/2004
	OL4 -- Fault Code Description Posted Date: 09/13/2012 Answer: Digital Operator Display Text: OL4 Overtorque Det 2 Description: Over torque detection function (2). A customer programmable current detection. Response may be elected. A minor fault contact output can be programmed by using the multi-function outputs. Possible Cause(s): Motor is overloaded. Corrective Action: Verify the program settings, reduce the load on the motor. 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-5NZSL5 Published Date: 09/13/2012 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 :	09/13/2012
	OL3 -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: OL3 Overtorque Det 1 Description: Over torque detection function. A customer programmable current detection. Response may be selected. minor fault contact output can be programmed by using the multi-function outputs. Possible Cause(s): Motor is overloaded. Corrective Action: Verify the program settings, reduce the load on the motor. 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-5NZSJ3 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
	OL3 -- Fault Code Description Posted Date: 06/21/2010 Answer: Digital Operator Display Text:OL3 Overtorque Det 1 Description:Overtorque Detection 1 Drive output current > L6-02 for more than the time set in L6-03. Causes:Motor is overloaded 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-5P4P8X Published Date: 06/21/2010 Related Files: User Manual for P7 Drive E7 Drive User Manual User Manual for F7 Drive Share \| Rate Rate this article :	06/21/2010
	OL3 -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: oL3 Description: OL3 (Overtorque detection) V/f mode: Drive output current exceeded the preset value in parameter n098. Open Loop Vector mode: Motor current or torque exceeded the preset value in parameters n097 and n098. When overtorque is detected, drive performs operation according to the preset setting of parameter n096. Causes and Corrective Actions: Check the driven machine and correct the cause of the fault, or increase the value of parameter n098 up to the highest value allowed for the machine. A complete list of fault codes is available in the V7 instruction manual. Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3Q7D Published Date: 06/08/2007 Related Files: Technical Manual for V7 and V74X Drives Share \| Rate Rate this article :	06/08/2007
	OL3 -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: oL3 (blinking) Description: OL 3 (Overtorque detection) Motor current exceeded the preset value in parameter n098. Causes and Corrective Actions: Reduce the load, and increase the accel / decel time. A complete list of fault codes is available in the V7 instruction manual. Product Group/Line: Inverter Drives, V7 Drive, V74X Drive, V7N Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3J72 Published Date: 06/08/2007 Related Files: Technical Manual for V7 and V74X Drives Share \| Rate Rate this article :	06/08/2007
	OH -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: oH (blinking) Description: OH (Cooling fin overheat) Intake air temperature rises while the drive output is OFF. Causes and Corrective Actions: Check the intake air temperature. A complete list of fault codes is available in the instruction manual. Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3HTG Published Date: 06/08/2007 Related Files: Technical Manual for V7 and V74X Drives Share \| Rate Rate this article :	06/08/2007
	OH -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: OH Heatsnk Ovrtemp Description: The transistor cooling fin temperature exceeded the allowable value. GPD 506/P5 (95 ° C), GPD515/G5 (95 ° C) Response may be selected. Possible Cause(s): Cooling fan(s) are not working, high ambient temperature. Corrective Action: Check for dirt build-up on the fans, reduce the ambient temperature around the inverter. 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-5P2LMY 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
	OH4 -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text: OH4 Motor Overheat 2 Description:Motor Overheating Fault. The Drive stops operation according to the setting of L1-04. Causes: Overheating of motor as measured by motor thermistor. Corrective Actions: Recheck the cycle time and the size of the load - - - Recheck the accel/decel time (C1-01 and C1-02) - - - Recheck the V/F pattern (E1-01thru E1-13) - - - Recheck the motor rated current value (E2-01). 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-5P4LBT 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
	OH3 -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: oH3 (blinking) Description: OH3 (Drive overheat pre-alarm) OH3 signal is input. Causes and Corrective Actions: Release the input of inverter overheat pre-alarm signal. A complete list of fault codes is available in the instruction manual, TM.V7.01 Product Group/Line: Inverter Drives, V7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P3HUX Published Date: 06/08/2007 Related Files: Technical Manual for V7 and V74X Drives Share \| Rate Rate this article :	06/08/2007
	OH3 -- Fault Code Description Posted Date: 11/16/2009 Answer: Digital Operator Display Text: OH3 Motor Overheat 1 Description: Motor Overheating Alarm The Drive stops or continues operation according to the setting of L1-03. Causes:Overheating of motor as measured by motor thermistor Corrective Actions: Recheck the cycle time and the size of the load - - - Recheck the accel/decel time (C1-01 and C1-02) - - - Recheck the V/F pattern (E1-01 thru E1-13) - - - Recheck the motor rated current value (E2-01). 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-5P4L68 Published Date: 11/16/2009 Related Files: User Manual for P7 Drive Technical Manual for V7 and V74X Drives User Manual for F7 Drive Share \| Rate Rate this article :	11/16/2009
	Off -- Fault Code Description Posted Date: 09/19/2013 Answer: Digital Operator Display Text: ---- (Off) Description:STP (Emergency stop) The drive stops according to parameter n005 after receiving the emergency stop fault signal. 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-5P3R9W Published Date: 09/19/2013 Share \| Rate Rate this article :	09/19/2013
	My drive has a CPF25 fault on it, my V1000 manual has no information on this alarm. What are some troubleshooting techniques to apply? Posted Date: 10/29/2012 Answer: The V1000 has a built-in EEPROM. When the CPU reads from the EEPROM, it looks for a 4 byte "Copy protect" code. If the terminal board is not connected, the CPU will be unable to read this (see attached) and give a CPF25 alarm. Additionally, if the memory in the EEPROM on the terminal are not congruent, the CPF25 alarm will show. In this case we will need to initialize the EEPROM by: 1. go into factory level A1-04 = 606 2. change access level to A1-01 = 606 3. EEPROM initialize, A1-03 = 9990 Attachments: 60KB Product Group/Line: Inverter Drives, A1000 Configured, A1000 Drive, V1000 Drive Topic/Sub Topic: Ask a Technical Question, CPF25 fault Document Number: DRV-8ZFM24 Published Date: 10/29/2012 Share \| Rate Rate this article :	10/29/2012
	*Must the data type be the same for every variable in a calculation? I get a compile error when I try (REAL := REAL INT).** Posted Date: 05/26/2009 Answer: IEC 61131-3 enforces strict datatyping. This means that when mixing types as in the calculation: REAL:=REAL * INT; a type conversion function is necessary. Also note that INT, UINT and WORD are all 16 bit values, but WORD is intended to be used with data that might be binary, with AND and OR operations performed on it. INT & UINT are intended for data that will be manipulated with addition, subtraction, multiply, and divide. (analog data.) DataType conversion functions allow operations to a dataype as if it is another. The following are some examples: REAL:=REAL * INT_TO_REAL(INT); BitCode:=(BOOL_TO_INT(Bit2) * INT#4) + (BOOL_TO_INT(Bit1) * INT#2) + BOOL_TO_INT(Bit0); (* BitCode is defined as an INT *) Product Group/Line: Controllers, MotionWorks IEC Topic/Sub Topic: Ask a Technical Question, Programming Document Number: MTN-7M5NXT Published Date: 05/26/2009 Share \| Rate Rate this article :	05/26/2009
	Many new computers do not offer serial communication ports. How is communication possible to Yaskawa products if no serial port is available? Posted Date: 06/25/2013 Answer: Currently most Yaskawa products require serial communication; some do offer Ethernet as an alternative. However, if neither method of communication is available, most computers offer USB (Universal Serial Bus). A USB to serial adaptor device may be used to establish communication. These adaptors are widely available on the Internet and at electronics stores. All current Yaskawa software will work with a USB to serial port adaptor (provided the operating system supports it). Yaskawa has used the following inexpensive model successfully with current generation products and software (SGDH, SMC-2000, SMC-3010, SMC-4000, MP-940, MP-930, MP-920, NS-600, NS-500, NS-300, SigmaWin100, SigmaWin+, YTerm, MotionWorks, MotionWorks+, IndexWorks, NS-XXX): http://www.cablestogo.com/product.asp?cat%5Fid=101&sku=26886 USB to serial adaptors can be purchased from many different vendors, including many PC vendors. The results from google search yielded a cost effective unit available, the link is listed below: Some sources for USB-to-Serial adapters: - CBW: manufactured by Zonet and is their Model # ZUC3100. SKU# 830762001706 - Cable America: http://www.cablestogo.com/product.asp?cat%5Fid=101&sku=26886 See attached. JPG file for photo example of cable. Attachments: 8KB Product Group/Line: Servo Products, Controllers, CACR-HR, IndexWorks Software, MotionWorks Software, MotionWorks Plus Software, MP920 Machine Controller, MP930 Machine Controller, MP940 Machine Controller, NS600 Indexer, NSxxx Software, SGDA, SGDB, SGDC, SGDH Sigma II, SigmaWin100-200 Software, SMC-2000, SMC-3010 LEGEND-MC, YTerm Software Topic/Sub Topic: Ask a Technical Question, Environment, Maintenance, Programming Document Number: MTN-5VDNR9 Published Date: 06/25/2013 Share \| Rate Rate this article :	06/25/2013
	Many HMI products have a battery compartment. What is the battery used for? Posted Date: 05/22/2001 Answer: In an HMI, the battery is usually used to provide nonvolatile memory. The battery is typically necessary for the real-time clock, internal variable storage, configuration information, and recipe memory. Several less expensive HMI products do not have a battery and therefore cannot offer features such as the real-time clock and recipe memory. Product Group/Line: Controllers, General Controllers Topic/Sub Topic: Ask a Technical Question, Options, Operation, Specifications Document Number: MNEN-5CJMPU Published Date: 05/22/2001 Share \| Rate Rate this article :	05/22/2001
	LF -- Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text: LF Output Pha Loss Description: Inverter output has an open phase. Possible Cause(s): Open phase on the output of the inverter. Loose terminal screws at terminals T1, T2, or T3. Program parameters set incorrectly. Corrective Action: Tighten the terminal screws, check the output 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 and PP.P5G5.01. Product Group/Line: Inverter Drives, G5HHP Drive, G5 GPD515 Drive, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Fault Code Description Document Number: DRV-5P2HAU Published Date: 06/08/2007 Share \| Rate Rate this article :	06/08/2007

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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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