Motor overtemperature
Olası Nedenler
- Loose connection of temperature sensor
- Overhigh motor temperature
- Excessively low overtemperature protection threshold (F9-57 or F9-76)
Çözüm
- Check temperature sensor wiring
- Decrease carrier frequency or take cooling measures
- Raise motor overtemperature protection threshold to 90-100C
Motor pre-overtemperature
Olası Nedenler
- Loose connection of temperature sensor
- Overhigh motor temperature
- Excessively low pre-overtemperature protection threshold (F9-58 or F9-77)
Çözüm
- Check temperature sensor wiring
- Decrease carrier frequency or take cooling measures
- Raise motor pre-overtemperature protection threshold
STO fault - signal disconnection
Olası Nedenler
- STO1 and STO2 signal disconnection
Çözüm
- Check wiring of STO1 and STO2
STO fault - undervoltage/overvoltage
Olası Nedenler
- STO circuit undervoltage or overvoltage
Çözüm
- Contact technical support
STO fault - input subsystem exception
Olası Nedenler
- STO circuit input subsystem exception
Çözüm
- Contact technical support
STO fault - blocking output chip
Olası Nedenler
- STO blocking output chip exception
Çözüm
- Contact technical support
Overvoltage during acceleration
Olası Nedenler
- High input grid voltage
- External force driving motor during acceleration
- Inappropriate overvoltage suppression
Çözüm
- Adjust voltage to normal range
- Cancel external force or install braking resistor; adjust F3-26 to 5-15 Hz
- Enable overvoltage suppression (F3-23); adjust F3-22 to 700-770V; F3-24 to 30-50
Pole position auto-tuning error
Olası Nedenler
- Output phase loss on motor
Çözüm
- Connect motor output correctly; ensure output contactor is closed
Slave error in master-slave control
Çözüm
- Troubleshoot based on slave fault code
IGBT U- short circuit
Olası Nedenler
- IGBT monitoring VCE signal exception
Çözüm
- Contact after-sales service
IGBT U+ short circuit
Olası Nedenler
- IGBT monitoring VCE signal exception
Çözüm
- Contact after-sales service
IGBT V- short circuit
Olası Nedenler
- IGBT monitoring VCE signal exception
Çözüm
- Contact after-sales service
IGBT V+ short circuit
Olası Nedenler
- IGBT monitoring VCE signal exception
Çözüm
- Contact after-sales service
Output phase loss
Çözüm
- Make sure motor is connected properly and output contactor is normal
IGBT continuity failure U+/V-
Çözüm
- Contact after-sales service
IGBT continuity failure U-/V+
Çözüm
- Contact after-sales service
IGBT continuity failure V+/W-
Çözüm
- Contact after-sales service
IGBT continuity failure V-/W+
Çözüm
- Contact after-sales service
IGBT continuity failure W+/U-
Çözüm
- Contact after-sales service
IGBT continuity failure W-/U+
Çözüm
- Contact after-sales service