SGDH Sigma II

SGDH Sigma II - YAI

30W to 55kW

Sigma II Amplifier is the ultimate servo solution for your automation needs. A single platform covers 30 watts to 55 kW and input voltages of 110, 230 and 480 VAC. The Sigma II amplifier can be set to torque, speed, or position control. A single-axis controller and a variety of network interface modules can be attached to the amplifier for the utmost flexibility. The Sigma II amplifier utilizes serial encoder technology to automatically recognize Sigma II rotary and linear servomotors.

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Question	Posted Date
What steps are required to upgrade Sigma products to Sigma II? Posted Date: 04/10/2006 Answer: Required Reading: It is recommended and assumed that you have read the following FAQ in this same database: "Is upgrading from Sigma to Sigma II the best option?" The information in that FAQ provides the basic information necessary to determine if upgrading is the best option without getting into unnecessary details. Planning an Upgrade: The documents provided in this FAQ provide a step-by-step guide to creating an upgrade plan and developing a draft of the bill of material (BOM). The worksheet below directly addresses the topic of retrofits and upgrades and should only be considered supplementary to the standard Sigma II product documentation. During the planning process and especially during the procurement phase of an upgrade, be sure to secure the recommended product documentation as outlined in the worksheet so that thorough documentation is available during the installation of the upgrade. These documents will be helpful for the mounting and wiring of the upgraded system as well as other facets of a successfully running Sigma II system.. In addition to the worksheet, Yaskawa also provides several tools to assist with upgrading. These tools include an abbreviated version of the Sigma II Product Catalog Supplement as well as a Parameter Converter that converts Sigma I parameters to the parameters the Sigma II amplifier needs to achieve the same performance. Step-by-step instructions for obtaining existing installation parameters, making the conversion, and installing the new Sigma II parameters are included with this utility. Product Group/Line: Servo Products, SGDH Sigma II Topic/Sub Topic: Ask a Technical Question, Parts or Replacement, Specifications Document Number: MNEN-5CJMSN Published Date: 04/10/2006 Share \| Rate Rate this article :	04/10/2006
What should the inertia ratio parameter, Pn103, be set to in the Sigma II amplifier when the inertia ratio is not known? Posted Date: 06/24/2013 Answer: Pn103 only takes effect when the amplifier is in Speed Mode or Position Mode (Pn000.1=0 or 1). If the amplifier is in Torque Mode (Pn000.1=2), then Pn103 has no effect on the servo tuning parameters. If machine performance is satisfactory with the default setting of Pn103, it can be left at the default setting. However, it is important to note that if Pn103 (inertia ratio setting) is set to the true inertia ratio, then Pn100 value itself will accurately represent the actual speed loop frequency response in Hz. But when high performance is required, Pn103 should always be set as close as possible to the true inertia ratio before beginning to manually tune the Sigma II and/or controller. There are 3 methods for determining the inertia ratio. 1. Use the inertia ratio from the sizing results in "SigmaSize" based on the dimensions and material properties of all the parts that the servomotor causes to move. 2. Use the amplifier's built-in online auto-tuning algorithm. (Fn007 on the digital operator). 3. Use graphical analysis techniques. When the components of the machine cannot be accurately measured or modeled with SigmaSize, the preferred method is #3 - graphical analysis techniques. Yaskawa has developed a spreadsheet to be used for this purpose. This spreadsheet is attached below. Yaskawa has also developed an "eLearning Module" on this subject. This interactive training tutorial simulates both SigmaWin100 and the attached spreadsheet. The user is guided through a real-life example, while being given the opportunity to click and enter data at the appropriate times as if the software was actually being used. This eLearning Module takes 15-20 minutes to complete. It is attached below. The eLearning Module runs as an executable file on any PC. A sound card and speakers are recommended since there is audio. However, the audio is not absolutely necessary since all information and instructions are also displayed as text. Screen resolution of 800X600 or greater is recommended. The Inertia Ratio Parameter, Pn103, is only one part of tuning the SigmaII amplifier. Yaskawa also offers a complete Tuning Class. For further information, see the eLearning module, doc # eLM.Sigma2.01.InertiaBGA Attachments: 454KB Product Group/Line: Servo Products, SGDH Sigma II Topic/Sub Topic: Ask a Technical Question, Procedure - Policy, Start Up - Installation, Tuning Document Number: MPER-5PXL83 Published Date: 06/24/2013 Share \| Rate Rate this article :	06/24/2013
What might be the cause of a brake relay chattering (turning on and off rapidly) on a vertical axis? Posted Date: 07/13/2004 Answer: The /BK (Brake relay interlock) signal must be mapped to one of three selectable outputs. If multiple functions are mapped to the same output, the signals use OR logic on the output circuit. When mapping the /BK signal, be sure to disable the original mapping to that output. For example, if it is desired to map /BK to selectable output #1 (SO1), first change Pn50F.2 to'1' (maps /BK to output terminals 25 and 26), and then change Pn50E.0 and Pn50E.1 to '0' (disables the /COIN and /V-CMP output signal originally mapped to the output). If the original mapping is not disabled, then whenever the motor is "in position" the brake relay (wired to output terminals 25 and 26) will release the brake! This is not desireable in vertical applications that are not "self locking". For futher details on mapping the /BK signal, and setting these parameters, please refer to the Sigma II User's Manual, sections 5.4.4, 5.5.3, and 5.5.4. Product Group/Line: Servo Products, SGDH Sigma II Topic/Sub Topic: Ask a Technical Question, Operation, Start Up - Installation, Troubleshooting Document Number: MNEN-5CJMHL Published Date: 07/13/2004 Share \| Rate Rate this article :	07/13/2004
What is the purpose of the Near Output Signal (/NEAR) in Sigma II drives? Posted Date: 01/13/2003 Answer: The purpose of this output signal is to inform the host controller that the servomotor is close to completing operation. Since this signal is generated before the positioning completed signal (/COIN) and has a setting range of 1 to 250 reference units, it is useful for applications where the host controller needs to activate other devices or axes before motion is completed. When the servomotor is tuned well, this output could be generated even during the move and not necessarily close to completion of the move. Again, the settings can be manipulated based on the given range. When implemented properly, this can also reduce cycle time because the host controller can prepare the next motion sequence before receiving the positioning completed (/COIN) signal. This output signal is only operational when the servo amplifier is in position control mode. To learn more about wiring & settings of this output signal, please refer to section 5.5.8 of the Sigma II users manual. Product Group/Line: Servo Products, SGDH Sigma II Topic/Sub Topic: Ask a Technical Question, Integration, Operation, Programming Document Number: REKR-5HRQVY Published Date: 01/13/2003 Share \| Rate Rate this article :	01/13/2003
What is the proper value to enter in Pn600 when Yaskawa Regenerative Resistor Unit is used? Posted Date: 07/13/2004 Answer: For Sigma II ServoPack up to 6.0 kW, if internal regeneration is used, leave Pn600 at factory default, 0. The value for Pn600 is in units of 10 watts. Its important to note that it is necessary to derate wattage of the external resistor to 20% or less for natural convection cooling and 50% or less with forced air cooling For example: JUSP-RA04 is wired default as 6.25 ohm @ 4x220W = 880W 880W0.2 = 180W Hence, Pn-600 = 18 To see a chart with models and PN-600 settings, please see the attached .PDF file. Please refer to Sigma II User's Manual (YEA-SIA-S800-32.2B) section 5.6 for additional details. JUSP-RA04 is wired default as 6.25 ohm @ 4x220W = 880W JUSP-RA05 is wired default as 3.13 ohm @ 8x220W = 1760W JUSP-RA18 is wired default as 18 ohm @ 4x220W = 880W JUSP-RA19 is wired default as 14.25 ohm @ 8220W = 1760W Attachments: 16KB Product Group/Line: Servo Products, SGDH Sigma II Topic/Sub Topic: Ask a Technical Question, Integration, Start Up - Installation Document Number: MNEN-5CJMS8 Published Date: 07/13/2004 Share \| Rate Rate this article :	07/13/2004

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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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