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.
| + | Granity 1.6.0 has a motor resistance and inductance measurement function that works with [[IONI]] drives. |
| | | |
− | Using automatic measure is the new recommended approach to set {{param|MR}} and {{param|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==
| |
| To successfully measure, following conditions must be met: | | To successfully measure, following conditions must be met: |
| | | |
Line 25: |
Line 22: |
| * Error recovering | | * Error recovering |
| * Homing | | * Homing |
− |
| |
− | {{tip|If these states change in the middle of the measurement, the outcome will be an error. In such case try analyze what is the cause of the error from the device status & fault bits.}}
| |
− |
| |
− | ==Execution==
| |
− | To start measurement, click "Measure resistance & inductance" button. The procedure takes about 10 seconds to complete and if sucessfull, the {{param|MR}} and {{param|ML}} parameters will be updated by the measured values.
| |
− |
| |
− | [[File:measureRL.png]]
| |
− |
| |
− | ==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.
| |
− |
| |
− | [[Category:IONI_features]]
| |
− | [[Category:Granity_user_guide]]
| |