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Post by misoswan on Jun 20, 2015 23:18:31 GMT
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Post by clyevo on Jul 1, 2015 2:49:01 GMT
the ohm is easy, u get it from the drive (VFD) manual, do not buy braking resistor with ohm values less than recommended eg : if product manual says the recommended ohm is 100ohm, then the best is 100ohm braking resistor, if you buy too low, you can burn the drive circuit, you can buy anything higher than 100ohm but less effective braking power
choosing the watt is even easier, there is recommended in product manual as well, u can buy any range it will not affect the drive, but bear in mind if too low will be less efficient because the heat will dissipate slower into the air, if too much more will be expensive and bulky
you can calculate how much ohm and watt you need according to weight of platform and power of motor for fun and curiosity, but in the end the most important thing is to buy according to drive (VFD) manufacturer recommendation because you dont want to damage your drive
The easiest way is to buy the drive with the external braking resistor included, you can email the seller of the drive (VFD) to include appropriate braking resistor, sometimes is much cheaper than buying separately
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