Editing Configuring linear servo motor
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This example works with [[Granity]] software. Follow your drive's setup guide for all parts except these: | This example works with [[Granity]] software. Follow your drive's setup guide for all parts except these: | ||
− | #Set {{param|MT}} as 3 phase AC or BLDC motor | + | #Set {{param|MT}} Motor type as 3 phase AC or BLDC motor |
− | #Set {{param|MPC}} to 2 | + | #Set {{param|MPC}} Pole count to 2 |
− | #Set {{param|FBR}} to a value calculated as: Lines per mm*Pole pair pitch. For example if we have a linear encoder with 100 pulses per millimeter and a linear motor with 50 mm pole pair pitch (25 mm pole pitch), we calculate FBR = 100*50 = 5000. '''Important:''' check whether encoder resolution is specified as pulses or cycles per mm OR counts per mm - if it's defined as counts per mm (after 4X decoding), then this value needs to be divided by 4 to get pulses per mm which is the correct input value format. | + | #Set {{param|FBR}} Feedback device resolution to a value calculated as: Lines per mm*Pole pair pitch. For example if we have a linear encoder with 100 pulses per millimeter and a linear motor with 50 mm pole pair pitch (25 mm pole pitch), we calculate FBR = 100*50 = 5000. '''Important:''' check whether encoder resolution is specified as pulses or cycles per mm OR counts per mm - if it's defined as counts per mm (after 4X decoding), then this value needs to be divided by 4 to get pulses per mm which is the correct input value format. |
− | #Set {{param|MTC}} according to your motor. If the value is unknown, it is recommended to start with low values such as 30 seconds as the forcer of linear motor may have very low time constant. MTC attempts to protect motor from overheating. | + | #Set {{param|MTC}} Thermal time constant according to your motor. If the value is unknown, it is recommended to start with low values such as 30 seconds as the forcer of linear motor may have very low time constant. MTC attempts to protect motor from overheating. |
#Finally as usual, {{param|FBI}} parameter must be set properly to achieve proper configuration. | #Finally as usual, {{param|FBI}} parameter must be set properly to achieve proper configuration. | ||
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==EMI notice== | ==EMI notice== | ||
Especially ironless linear motors are known to leak large amounts of [[electromagnetic interference]] due to open construction and lack of Faraday's cage. It may be necessary to use an [[Edge filter]] between the drive and motor to reduce the amount of EMI. | Especially ironless linear motors are known to leak large amounts of [[electromagnetic interference]] due to open construction and lack of Faraday's cage. It may be necessary to use an [[Edge filter]] between the drive and motor to reduce the amount of EMI. | ||
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