From the poll it seems everyone is using braking resistor
1) There is a DC capacitor to collect all the regenerative power from the motor. What happens if we dont use braking resistor. Overvoltage error because high capacitor voltage? This will lead us to set a long deceleration time in VFD settings?
2)I read somewhere that it is possible to use this regenerative power by means of transferring it to the other VFD. How can we do this? Is it good enough to be significant in reduction of electricity consumption?
ok for my?am used 0.55kw sew eurodrive motor 3x .230v
which Recommended ?
Let say platform payload weight 200kg
the RPM of the gearbox 20rpm. 167Nm/ per one .(0.1m) arm of a single gearbox shaft
.picture in forum Thank you very much.Michal
Hmm, the 200Watt doesn't look enough, and I'm not sure about the resistance that is needed from the SEW inverter. Perhaps vicpopo can validate that the value (ohms) is enough as he is using SEW inverters as well.
the recommended resistance (ohm) depends on the model of the inverter drive and the rated power (kw) and usually are mentioned in the product manual, the watt usually are also mentioned in the product manual but if you are meticulous you can calculate yourself :
motionsim.freeforums.net/post/1434 P=VxV/R if you using 230 volts and if you use 100ohm braking resistor The wattage you would need is 230x230/100 = 529w So 200 watt is too far less, its ok for the watt to be less but if too less then the heat dissipation will be slower, and braking will be slower as well
dureiken: Hi there, it's really quiet here someone could help me for my 6 dof project ? thanks a lot
Aug 8, 2017 15:34:46 GMT
tronicgr: dureiken Hi, Open a thread and I'll try my best to help. A little busy with Kickstarter details at the moment but I'll see what I can do.
Aug 12, 2017 11:57:42 GMT
dureiken74: I just did it
Aug 27, 2017 11:59:06 GMT
fimmy: How's the firmware going?
Sept 6, 2017 8:34:43 GMT
tronicgr: @fimmy I had to put it on hold to finalize the manufacturing of the new kickstarter controllers. I tested parts of it to ensure compliance with the new features and looks good so far. I'll get back to it soon for integration.
Sept 9, 2017 12:52:35 GMT
Theuns: Very nice design.I'm also busy with mine and changing it also to Linear Actuators with 220v Servo motors.I'm waiting for my new controllers from Thanos. If I may ask Do you have any Sketchup files of your design and willing to share it I Thanks Theuns
Sept 14, 2017 22:45:09 GMT
atayeu: Hey everyone! I'm reading up and gathering all of the intel I can find for my first motion platform. this is by far best information for creating one.
Oct 14, 2017 7:25:57 GMT
tmcnam: I must be crazy but I still can't find the blueprints to the platform by GA-Dawg. Any help would be appreciated. Thanks guys.
Mar 10, 2019 21:31:57 GMT
Trip Rodriguez: Sorry tmcnam, the shoutbox doesn't get much attention. Did you find the blueprints? They are at the VERY bottom of the extremely long first post. It says "attachments: 6DOF.zip
May 4, 2019 19:13:25 GMT
zivby: How much weight this setup can carry?
May 19, 2019 11:57:16 GMT