Editing Configuring drive voltage limits FUV and FOV
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=== How it works === | === How it works === | ||
FOV sets the HV DC bus threshold which has following functionality: | FOV sets the HV DC bus threshold which has following functionality: | ||
− | *If HV DC bus voltage is above | + | *If HV DC bus voltage is above FUV during power-on or restart, drive will not start initialization until the voltage has fallen above the FUV level |
*If voltage is above FOV, drive will start using [[regenerative resistor]] to prevent voltage build up during regeneration | *If voltage is above FOV, drive will start using [[regenerative resistor]] to prevent voltage build up during regeneration | ||
*If voltage is above FOV by a drive specific fixed limit (i.e. ~4.6V on IONI drive or ~25V on Argon), drive will fault into Over voltage fault | *If voltage is above FOV by a drive specific fixed limit (i.e. ~4.6V on IONI drive or ~25V on Argon), drive will fault into Over voltage fault | ||
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Set FOV at least 10% above nominal (15-20% recommended, if possible) HV DC bus voltage after rectification. Nominal HV DC bus voltage can be calculated by formula 1.41*V_AC. Examples: | Set FOV at least 10% above nominal (15-20% recommended, if possible) HV DC bus voltage after rectification. Nominal HV DC bus voltage can be calculated by formula 1.41*V_AC. Examples: | ||
*115 VAC mains - FOV = 1.41*115*1.2 = 195 V | *115 VAC mains - FOV = 1.41*115*1.2 = 195 V | ||
− | *230 VAC mains - FOV = 1.41*230*1. | + | *230 VAC mains - FOV = 1.41*230*1.2 = 389 V |
{{info|If you're using [[Argon]] servo drive, this applies only drives with 2.1.0 or later firmware versions. If you're using older FW, consider upgrading FW or follow the instructions in the subsection below}} | {{info|If you're using [[Argon]] servo drive, this applies only drives with 2.1.0 or later firmware versions. If you're using older FW, consider upgrading FW or follow the instructions in the subsection below}} | ||
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{{Damage| Setting FOV too low on outdated firmwares may cause regenerative resistor heating whenever power is on.}} | {{Damage| Setting FOV too low on outdated firmwares may cause regenerative resistor heating whenever power is on.}} | ||
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