J7 Drive

J7 Drive - YAI

1/8 - 5 HP

The J7 drive was a general purpose AC drive; its PWM design provided low motor noise and high starting torque, with a current overload rating of 150% for 60 seconds. V/f control made this drive suitable for most general applications. The J7 was feature-packed, low cost, and compact. The digital operator included a 3-digit LED status display. Digital programming covered 79 parameters. The J7 had five digital inputs (3 progammable), 1 analog input, and 1 digital output (programmable). An optional RS-485 Modbus RTU serial communication port was available. An ideal choice whenever low cost and small size were required.

The J7 Drive is a Legacy product and is no longer promoted in the Americas. Earlier versions of this product were named GPD 305/J7, GPD 305, or VS Mini J7.

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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
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 will happen if there is only .5'' clearance from either top or bottom of the drive to an enclosure? Posted Date: 03/14/2006 Answer: There MUST be a minimum of 4.7'' clearance above and below the drive (varies by model) to allow airflow over the heat sink. Otherwise, an OH alarm (cooling fin overheat) may occur. Also, a minimum 1.2'' clearance (varies by model) is required on each side of the drive. Refer to the appropriate drives instruction manual for the mounting and clearance specifications. Product Group/Line: Inverter Drives, E7 Drive, F7 Drive, G5 GPD515 Drive, G5HHP Drive, G7 Drive, J7 Drive, P5 Drive 600 Volt, P7 Drive, V7 Drive, V7N Drive Topic/Sub Topic: Ask a Technical Question, Installation Document Number: DRV-5FLLY9 Published Date: 03/14/2006	03/14/2006
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 happens if a forward command and a reverse command are closed on the terminal block at the same time? Posted Date: 11/28/2005 Answer: A blinking error message will appear (EF), and the motor will decelerate to stop. Note: If both the forward and reverse commands have been shut off, then the motor will restart. When FWD and REV run commands are simultaneously input for over 500ms, the drive stops according to parameter n04. See TM.J7.01 for more information. Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Operation, Programming, Protective Features, Starting - Stopping Document Number: DRV-5NSLKU 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
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	06/11/2014
On the J7 drive, can the input reference terminal FR still be used when the drive is programmed for Up/Down control? Posted Date: 06/20/2013 Answer: No. The input reference FR is ignored by the drive when Up/Down control is used. Up/Down Control has priority over the FR input as the speed reference. Refer to the attached to see other considerations to be taken when using the Up/Down control: For additional information, refer to TM.J7.01. Attachments: 19KB Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Programming Document Number: DRV-5KULF7 Published Date: 06/20/2013	06/20/2013
Is PID available on the J7 Drive? Posted Date: 10/27/2005 Answer: No, Yaskawa recommends using the V7 Drive for PID applications. Note: Earlier versions of the J7 Drive were named GPD 305/J7, GPD 305 or VS Mini J7. Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, PID Application, Specifications Document Number: DRV-5FLLK6 Published Date: 10/27/2005	10/27/2005
How is the inverter reset after an alarm has gone off Posted Date: 07/13/2004 Answer: The fault-alarm must be reset by either pushing reset on the digital operator or by setting up an input terminal that is set as a fault reset. A good example of this is terminal S3 that is factory wired as a fault reset. A final solution to clearing the fault and running the motor would be to cycle power to the entire drive. Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Fault Code Description, Keypad-Operator, Protective Features Document Number: DRV-5NSKGT Published Date: 07/13/2004	07/13/2004
How do I enter the Run Command from the control circuit terminals? Posted Date: 11/28/2005 Answer: The Run command Method is entered from the digital operator when at factory settings. Change the Run Command Selection parameter n02 to "1" to enter the Run Command from the control circuit terminal. Refer to TM.J7.01 for more information. Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Motors, Programming Document Number: DRV-5NSL7Q Published Date: 11/28/2005	11/28/2005
How can the gain be changed for an Analog Input? Posted Date: 09/13/2012 Answer: The gain can be changed by setting in the Analog Frequency Command Gain parameter, n041. Other bounds can be set on the reference by configuring the Bias parameter, n042. Please refer to TM.J7.01 for more information. Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Procedure - Policy, Programming Document Number: DRV-5NSJTK Published Date: 09/13/2012	09/13/2012
How can I set this AC drive so my motor can't run below 20hz? Is it the Frequency min. parameter? Posted Date: 06/12/2014 Answer: See attached. Attachments: 18KB Product Group/Line: Inverter Drives, E7 Drive, F7 Drive, G5 Drive 600 Volt, G5HHP Drive, J7 Drive, P5 Drive 600 Volt, V7 Drive, V74X Drive, V7N Drive Topic/Sub Topic: Ask a Technical Question, Programming, Speed Control Document Number: DRV-5H7QNR Published Date: 06/12/2014	06/12/2014
Does installation of an AC Drive near a large capacitor bank (power-factor correction) require special consideration? Posted Date: 10/27/2005 Answer: Yes. Capacitors are put across the AC power line to correct for lagging power factor due to inductive loads. Motors, relay coils, transformers, etc. are inductive loads. Many times capacitors are switched on and off the line as demand changes. Unfortunately, this switching results in large voltage spikes on the power line which can damage the drives rectifier circuit. To prevent damage use a 5% line reactor on the drive's input. If overvoltage faults are indicated, add dynamic braking -- this will clamp the DC bus. Product Group/Line: Inverter Drives, E7 Drive, F7 Drive, G5 Drive 600 Volt, G5HHP Drive, G7 Drive, J7 Drive, P5 Drive 600 Volt, P7 Drive, V7 Drive, V74X Drive, V7N Drive, VS mini Drive Topic/Sub Topic: Ask a Technical Question, Harmonics Document Number: DRV-5FLM2U Published Date: 10/27/2005	10/27/2005
Can the keypad from J7 Drive be removed and installed at a remote location? If yes what is the part no. of the cable and what is the distance it can support? Posted Date: 06/11/2014 Answer: See attached. Attachments: 15KB Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Keypad-Operator, Wiring Document Number: DRV-5F9TV6 Published Date: 06/11/2014	06/11/2014
Can the J7 Drive be used with a single-phase, 100V input? Posted Date: 11/28/2005 Answer: There is no single-phase, 100V input type for the J7 Drive. Please use the VS Mini C-Series (0.1 - 0.75kW). See Table A2-1 in TM.J7.01 for a list of the J7 Drive power supply specifications. Note: Earlier versions of the J7 Drive were named GPD 305/J7, GPD 305 or VS Mini J7. Refer to TM.J7.01 for additional information. Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Specifications Document Number: DRV-5NTLA3 Published Date: 11/28/2005	11/28/2005
Can output current be monitored via Analog Output? Posted Date: 06/20/2013 Answer: Yes, Set the Analog Monitor Output Selection Number (n44) to "1" after connecting a DC3V, 1ma panel meter to terminals AM-AC. See the attached. For more information, please refer to TM.J7.01. Attachments: 23KB Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Programming Document Number: DRV-5NSKDK Published Date: 06/20/2013	06/20/2013
Can multiple motors be used with a single inverter? Posted Date: 06/20/2013 Answer: Yes, see attached. Attachments: 20KB Product Group/Line: Inverter Drives, E7 Drive, F7 Drive, G5 GPD515 Drive, G5HHP Drive, G7 Drive, J7 Drive, P5 GPD506 Drive, P7 Drive, V7 Drive, V74X Drive, V7N Drive Topic/Sub Topic: Ask a Technical Question, Drive Size, Motors Document Number: DRV-5NTHVU Published Date: 06/20/2013	06/20/2013
Can a J7 Drove fault be indicated by a drive relay output signal? Posted Date: 06/20/2013 Answer: A fault can be output using Multi-Function Relay Output Terminals MA, MB, and MC (N.O., N.C.). See the attached. Refer to TM.J7.01 for additional information. Attachments: 29KB Product Group/Line: Inverter Drives, J7 Drive Topic/Sub Topic: Ask a Technical Question, Programming Document Number: DRV-5NSKL7 Published Date: 06/20/2013	06/20/2013
Can a Dynamic Braking resistor be installed on a J7 Drive? Posted Date: 10/11/2004 Answer: The J7 Drive does not have an internal braking transistor therefore that option can not be installed. An separate braking module is be needed. It may be more cost effective to use a V7 Drive instead for that application. Note: Earlier versions of the J7 Drive were named GPD 305/J7, GPD 305 or VS Mini J7 and earlier versions of the V7 Drive were named GPD 315/V7, GPD 315 or VS Mini V7. Product Group/Line: Inverter Drives, J7 Drive, V74X Drive, V7N Drive, V7 Drive Topic/Sub Topic: Ask a Technical Question, Dynamic Braking Document Number: DRV-5FLLSK Published Date: 10/11/2004	10/11/2004

Showing 1 to 20 of 20 entries.

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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J7 Drive

J7 Drive - YAI

1/8 - 5 HP

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