Work with us Contacts News & Events Home Company Solutions Products Applications Resources E-Mobility Snubbers Home Products Accessories Snubber Details Variants Featured in Make an enquiry In some conditions of the power supply chain, electrical resonance phenomena may occur in motor windings. These phenomena can multiply several times the instantaneous voltage of winding versus ground, leading to excessive stress of the motor insulation system resulting in quick degeneration and total insulation failure after a short time of operation. Anti-resonance Filter Details Category: Products > Accessories Featured TK Motors Certificate EN ISO 13849-1:2015 , EN 62061:2005 Snubber Picture below shows the star point voltage versus ground waveform acquired in a system with significant resonance. The DC-Bus setting of the power amplifier is only 600 Vdc but the instantaneous voltage can reach a value as high as 1600 V. The insulation system cannot withstand this high voltage in long term operation. To limit such voltage transients, Phase supplies with each motor with such characteristics a tuned anti resonance filter (snubber) which must be assembled within 5 m of the motors, star terminal (white wire) and machine ground. Failure to connect the snubber may result in motor failure by insulator puncturing. Phase can supply different type of snubber depending on motor size. NOTE: larger snubbers in normal opera 200W) and need to be mounted on a cooling surface. Check this requirement on the snubber drawing. Also PMC suggest , in the first installation, to check the temperature of the snubber that do not exceed 90°C. On request Phase can supply special snubbers with a channel for liquid cooling. IMPORTANT NOTE ! The values of snubber filter are calculated for a “typical” configuration. The actual configuration of the complete power supply chain (inverter PWM modulation method, type and length of the supply cables, type of series inductor and/or filter installed) can modify significantly the behaviour of the system. Consequently it is strongly recommended that for each first installation of a new motor type or significant modification of the power supply components (such as different power amplifier type or brand) the star point voltage potential to ground with supplied snubber connected is acquired. The peak value must be <= +/-1200 Vpk. Search a file Are you looking for a specific file or document? Use our download finder to find it faster Name of file SEARCH NAME CHOOSE THE CATEGORY CHOOSE THE TYPE OF FILE LAST UPDATE DOWNLOAD TWX Catalog TW Datasheet November 24, 2021 AxN Size4 Installation Manual AX November 18, 2021 AxN Size3 Installation Manual AX November 18, 2021 AxN Size2 Installation Manual AX November 18, 2021 AxN Line Hardware User Manual AX November 18, 2021 AxN 200.400.4 User Manual AX November 18, 2021 AxN 16.30.4 User Manual AX November 18, 2021 AxN 09.20.4 User Manual AX November 18, 2021 AxN Size5 Installation Manual AX November 18, 2021 TK Frameless Motor Manual TK November 18, 2021 Prev 1 18 Next Other products Our strength, after long process of cooperation with customer our products become standard. Find what you need in our standard products. Torque Wire Motors Product Overview Integrated Servo Drive Drive Technology Product Overview Drive Controller Servo Motors Product Overview Torque Motors AC Servo Motors Contact us Do you need more information about our products? Fill out the form below First Name* Last Name* Email* Product category* All products Servo Motors Torque Wire Motors Drive Technology Accessories Message* This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply SUBMIT Home Company Solutions Products Applications Resources E-Mobility Tell us your project HEADQUARTERS Via Luigi Cibrario 4, 16154 Genova, Italy WAREHOUSE Via Pionieri ed Aviatori d’Italia 4, 16154 Genova, Italy LEGAL ADDRESS Via Luigi Cibrario 4, 16154 Genova, Italy CONTACT US For more informations or requests refer to the contacts page © 2021 Phase Motion Control S.p.a. All right reserved Created by vivoadv.it Privacy Policy • General Conditions P.IVA / VAT 03425740101