V74X Drive

V74X Drive - YAI

1/8 - 15 HP

The V74X Drive was low cost, compact, and operable in V/f or Open Loop Vector mode. In addition to good speed regulation, open loop vector control also provided higher torque at lower speeds. The V74X was ideally suited for applications such as conveyors, grinders, centrifuges, pumps, fans,blowers, machine tools, packaging, food processing, and commercial laundry.

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Question	Posted Date
Why don't the page numbers in the parameter section of the instruction manual match the page numbers in the body of the manual? Posted Date: 06/11/2014 Answer: See attached. Attachments: 16KB Product Group/Line: Inverter Drives, G3 GPD503 Drive, G5 GPD515 Drive, J7 Drive, V74X Drive, V7 Drive, VG3 VCD703 Drive, G5 Drive 600 Volt Topic/Sub Topic: Ask a Technical Question, Document Clarification Document Number: DRV-5GZUT4 Published Date: 06/11/2014	06/11/2014
Why are the parameters on the digital operator hidden or locked on the V7 series drives? Posted Date: 11/28/2005 Answer: Check the settings in n001. Parameter n001 decides which parameters can be set, and which ones can be displayed on the operator. Depending on your needs, set n001 between 1 and 4. For additional information, refer to TM.V7.01. Product Group/Line: Inverter Drives, V74X Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Keypad-Operator, Programming Document Number: DRV-5NSPWK Published Date: 11/28/2005	11/28/2005
When dealing with harmonic noise, which is better-- an AC or a DC reactor? Posted Date: 06/20/2013 Answer: Use an AC reactor when attaching a reactor to the power supply side, and a DC reactor when attaching to the series + and - bus terminals on the inverter. They are both equally effective. They can also be used in combination. Refer to the attached technical note from a manufacturer of AC chokes and DC reactors for a detailed explanation of solutions to harmonic noise in AC drives. Attachments: 47KB Product Group/Line: Inverter Drives, E7 Drive, F7 Drive, G5 Drive 600 Volt, G5HHP Drive, J7 Drive, P5 Drive 600 Volt, P7 Drive, V7 Drive, V74X Drive, V7N Drive Topic/Sub Topic: Ask a Technical Question, Harmonics Document Number: DRV-5NSRS5 Published Date: 06/20/2013	06/20/2013
What parameter sets the maximum output frequency for V7 series drives? Posted Date: 06/20/2013 Answer: Change n011 in order to raise the maximum output currency passed the rated frequency. See attached for more information. Refer to TM.V7.01 for additional information. Attachments: 20KB Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Programming, Protective Features Document Number: DRV-5NSM7U Published Date: 06/20/2013 Related Files: Technical Manual for V7 and V74X Drives	06/20/2013
What is the meaning of CAL or CALL on the keypad display?. Posted Date: 10/28/2005 Answer: Upon drive power up when the drives Run Command or the frequency reference are to be given from PLC thru serial communication - "CALL" will flash on the display for the VS F7/G7 - "CAL" will flash on the display for the VS mini V7/J7 This indicates the unit is awaiting the appropriate communications data. Once a node receives acceptable data from PLC, CALL or CAL will stop flashing. the drive is then ready to run. Product Group/Line: Inverter Drives, F7 Drive, G7 Drive, J7 Drive, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Networks, Programming Document Number: DRV-5NTM5Z Published Date: 10/28/2005	10/28/2005
What is required to replace the digital operator on the V7 NEMA 4 drive? What is the replacement part number? Posted Date: 05/07/2015 Answer: Should the digital operator require replacement on a V7 NEMA 4 drive, it's recommended to replace both the cover and digital operator board (sold separately). This is because the operator overlay sheet is applied directly to the cover but the digital operator board is removable from the back of the cover. - The NEMA 4 cover part number for 0.2kW - 0.7kW drives is UUX000247. - The NEMA 4 cover part number for 1.5kW - 3.7kW drives is UUX000248. - The NEMA 4 digital operator board part number for 0.2kW - 3.7kW drives is CDR001106. Product Group/Line: Inverter Drives, V74X Drive Topic/Sub Topic: Ask a Technical Question, Parts or Replacement Document Number: DRV-5WKKAH Published Date: 05/07/2015	05/07/2015
What happens when switching to reverse while the motor is rotating forward (FWD=OFF, REV=ON)? Posted Date: 11/28/2005 Answer: For standard settings, the drive will decelerate all the way to zero, and then accelerate into reverse. Note: If the forward and reverse inputs are closed at the same time ffor more than 500ms the digital operator will blink EF. Once out of forward and reverse at same time motor will then continue to operate. For more information, refer to TM.V7.01. Product Group/Line: Inverter Drives, V74X Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Braking, Operation, Programming Document Number: DRV-5NSMEB Published Date: 11/28/2005	11/28/2005
What does it mean when the drive has a RUN command and the STOP light is flashing on the drive display? Posted Date: 10/27/2005 Answer: If the 'Stop' LED is flashing and the 'Drive' light is on, the drive is receiving a run command, but has either no frequency or a zero (0) frequency reference. Product Group/Line: Inverter Drives, E7 Drive, F7 Drive, G5 Drive 600 Volt, G5 GPD515 Drive, G5HHP Drive, G7 Drive, General Inverter Drives, J7 Drive, P5 Drive 600 Volt, P5 GPD506 Drive, P7 Drive, V7 Drive, V74X Drive, V7N Drive Topic/Sub Topic: Ask a Technical Question, Keypad-Operator, Operation, Start Up Document Number: DRV-5FLLZN Published Date: 10/27/2005	10/27/2005
What does it mean that, "motor protection time constant for the electrical termal device is 8 minutes"? Posted Date: 11/28/2005 Answer: This refers to Motor Overload Protection Time constant when a cold start is performed. After switching ON the power, a fault will occur if the motor runs at 150% of the load for 8 minutes. It is equal to running the motor at 150% load for 1 minute when using a hot start (after continuing to drive at 100% load). Refer to TM.V7.01 for more information. Product Group/Line: Inverter Drives, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Protective Features Document Number: DRV-5NSSDA Published Date: 11/28/2005	11/28/2005
What does "with volume" and "without volume" refer to? Some V7 manuals and catalogs use this terminology. Posted Date: 06/20/2013 Answer: This refers to a potentiometer on the digital operator / keypad of the V7 Drive that changes the frequency setting. See attached. For additional information, refer to TM.V7.01. Attachments: 32KB Product Group/Line: Inverter Drives, V74X Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Speed Control Document Number: DRV-5NSQ9D Published Date: 06/20/2013	06/20/2013
What are some counter-measures to reduce harmonics created by AC drives? Posted Date: 06/08/2007 Answer: With inverters, some counter-measures include installing a reactor on the input side (there are both AC and DC type reactors), or the addition of a sinusoidal power supply regen converter. Product Group/Line: Inverter Drives, G5HHP Drive, G7 Drive, P7 Drive, V74X Drive, V7N Drive Topic/Sub Topic: Ask a Technical Question, Harmonics Document Number: DRV-5NVJSV Published Date: 06/08/2007	06/08/2007
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	06/08/2007
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	06/08/2007
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	06/08/2007
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	07/13/2004
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	06/08/2007
oPA - Fault Code Description Posted Date: 06/08/2007 Answer: Digital Operator Display Text:oPA Description:OPR (Operator connecting fault) 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-5P3R2J Published Date: 06/08/2007	06/08/2007
On the V7 Drive are the Logic inputs and the Logic Common terminal (SC) electrically isolated from the Frequency Reference Common (FC)? Posted Date: 07/13/2004 Answer: Yes. The Logic Inputs (S1..S7) and Logic Common (SC) are electrically isolated from all other terminals including FC and chassis ground. In fact all circuit board connections are DC isolated from chassis ground. However, 'Frequency Common' (FC) is 'OV' (read 'zero volts') which is the circuit board common. FC is not isolated from the MODBUS terminals (S+,S-,R+ and R-). 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, Wiring Document Number: DRV-5FLM4Q Published Date: 07/13/2004	07/13/2004
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	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	06/08/2007

Showing 1 to 20 of 44 entries.

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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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V74X Drive - YAI

1/8 - 15 HP

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