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OL7 fault in yaskawa G7 drive

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Cause : High-slip Braking OL(HSB-OL) comes when the output frequency did not change for longer than the time set in N3-04. The inertia returned to the load is too large.

  1. Make sure the load is an inertial load.
  2. Set the system so that the decel- eration time that does not produce overvoltages is 120 s or less.
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