Cautionary Items Regarding Usage
• The figures contained in this manual may, for purposes of detailed explanation, be drawn with covers and safety shields removed. When operating this product, be sure to return all standard covers and shields to their original locations, and operate the product in accordance with this manual.
• The figures contained in this manual are representative examples, and may differ from the product recieved.
• Appropriate modifications may be made to this manual due to improvements or specification changes in the product, or to improve the ease of use of the manual itself. In the event of such changes, the document number of the manual will be updated, and issued as a revision.
• To order additional copies of this manual, contact your Yasakwa representative, or the nearest Yaskawa sales office printed on the back of this manual with the document number written on the cover.
• Yaskawa assumes no responsibility for products modified by the customer as they fall outside the warranty.
Maximum Capacity of Applied Motor
Keep the following in mind in SGDG digital torque amplifier and SGDG/SGL□W servomotor combinations: The SGDG-01GT can drive motors of 30~200W rated output.Since LEGEND servo drives are applicable to a wider range motor and driver combinations, the output power of the drive will dictate the available maximum motor power even if the maximum output power of the motor is larger than that of the connected drive. Specific speed/torque performance will vary depending on such power supply conditions as voltage, number of available phases, etc.
Main Circuit Wiring
Here we will show representative examples of main circuit wiring, the functions of the main circuit terminals, as well as the power input sequence, etc. Observe the following cautionary items when wiring.
• Do not pass the power line and signal lines through the same duct or bundle them together. Keep the power line and signal lines at least 30cm apart when wiring. • Use a twist pair wire or multi-core twisted-pair bundled shield wire for the signal and encoder lines. The maximum wiring length is 3m for the command input line, and 20m for the encoder feedback line. • Do not touch the power terminal for 5 min. after power OFF as a high voltage may remain even after • Suitable for use on a circuit capable of delivering not more than 5000 Arms (symmetrical) power OFF. Perform inspection work after checking that the CHARGE lamp has gone out. • Do not turn the power ON/OFF frequently. Limit ON/OFF repetition to one time per minute. Because the digital torque amplifier has a capacitor in its power unit, a large charging current (charging time: 0.2sec.) will be fed at power ON. For this reason, frequent power ON/OFF switching degrades the main circuit element within the digital torque amplifier.
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