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FAQ
Automatic restart after instantaneous power failure
1. Assume that Pr.61 (Automatic restart after instantaneous power failure coasting time) is set to "0", restart operation is enabled, and the speed command and STF/STR start command are supplied from an external source. When an instantaneous power failure occurs and then power restores, does the inverter restart only if the speed command and STF/STR start command are still available?
Can I inhibit the inverter from restarting by disabling these commands?
2. Can I enable restart operation even when the instantaneous power failure time is longer than 15 ms?
Can I inhibit the inverter from restarting by disabling these commands?
2. Can I enable restart operation even when the instantaneous power failure time is longer than 15 ms?
- Category :
Answer
1. Yes. The inverter cannot restart if STF and STR are turned OFF.
However, on the next startup, the inverter detects coasting and restarts.
2. When automatic restart after instantaneous power failure is enabled, the inverter reads the feedback pulse and starts operating at the current speed even if the instantaneous power failure is longer than 15 ms.
However, on the next startup, the inverter detects coasting and restarts.
2. When automatic restart after instantaneous power failure is enabled, the inverter reads the feedback pulse and starts operating at the current speed even if the instantaneous power failure is longer than 15 ms.
- Product Name
- Inverter, magnet motor drive
- Product Category
- Inverter
- Series
- FR-V200