8/26/2019 3:53 PM | |
Posts: 86 Rating: (2) |
Hello, I want circuit block diagram of servo drive. If anyone have please send me. |
8/26/2019 6:22 PM | |
Joined: 5/22/2012 Last visit: 3/24/2022 Posts: 895 Rating: (67) |
Eplan p8 Marcos are available. You can search here in SIOS for them |
8/29/2019 7:33 AM | |
Joined: 4/28/2015 Last visit: 9/20/2022 Posts: 1278 Rating: (295) |
Hello, if we talk about Servo drives that are used at 3AC inputs the circuit diagram looks exactly the same as the picture you have posted for VFD. You have the rectifier (for most single axis Servo drives this is also a standard B6 diode bridge without regeneration option), you have the DC link with capacitors and you have the inverter unit which is a IGBT bridge with freewheeling diodes (the freewheeling diodes in parallel to the IGBT are always used to the inductance of the motor which delivers a current during the switching of the IGBTs). Often there is an additional braking unit (braking chopper + braking resistor) integrated so that the energy that is generated while braking the motor is braking is burned in the resistor. For multi axes systems you have different options for the rectifier unit. It can be also a basic one (BLM) with a diode bridge and without regeneration feature or it can be an Active infeed (SLM, ALM) with regeneration. Then the input rectifier is quite similar to the output inverter with IGBT bridge to be able to control the DC link and regenerate energy to the grid. The output rectifiers are the Motor Modules (how Siemens calls it) and you can put several of them in parallel to the common DC link. For Siemens you have the single axis Servos V90 and S210 and the multi axes system S120. A comparison of these 3 servo drives with technical data and features as an overview is attached. AttachmentSINAMICS ServoDrives_EN.pdf (102 Downloads) |
Best regards, |
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