Editing Measure motor resistance and inductance in Granity
Your changes will be displayed to readers once an authorized user accepts them. (help) |
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 1: | Line 1: | ||
[[File:inductance.png|The definition of inductance|thumb]][[Granity]] setup software has a motor resistance and inductance measurement function that works with [[IONI]] drives. | [[File:inductance.png|The definition of inductance|thumb]][[Granity]] setup software has a motor resistance and inductance measurement function that works with [[IONI]] drives. | ||
− | Using automatic measure is the new recommended approach to set | + | Using automatic measure is the new recommended approach to set [[MR]] and [[ML]] parameters accurately even when motor data sheet would provide these values. This is because many data sheets unfortunately provide inaccurate values. Some manufacturers have apparently characterized motor inductance at high frequency range (hundreds of kHz) which typically gives a value more than 50% off from the real inductance in typical laminated iron motors. |
==Checklist== | ==Checklist== | ||
Line 29: | Line 29: | ||
==Execution== | ==Execution== | ||
− | To start measurement, click "Measure resistance & inductance" button. The procedure takes about 10 seconds to complete and if sucessfull, the | + | To start measurement, click "Measure resistance & inductance" button. The procedure takes about 10 seconds to complete and if sucessfull, the [[MR]] and [[ML]] parameters will be updated by the measured values. |
[[File:measureRL.png]] | [[File:measureRL.png]] | ||
Line 35: | Line 35: | ||
==Troubleshooting== | ==Troubleshooting== | ||
If the function fails and Under voltage fault is set, it typically means that HV DC power supply has been overloaded and caused drop of voltage. In such case, try setting motor current limits (MMC and MCC parameters) to a lower value and click Apply before executing the measure function. | If the function fails and Under voltage fault is set, it typically means that HV DC power supply has been overloaded and caused drop of voltage. In such case, try setting motor current limits (MMC and MCC parameters) to a lower value and click Apply before executing the measure function. | ||
− | |||
− | |||
− |