Using Inverters for Elevating Machines
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Overvoltage Inhibit Function (SPEC: E or Later Only)
Leave L3-11 (Overvoltage inhibit function selection) set to 0 (disabled: factory setting). This function is used
to prevent overvoltage tripping when the braking resistor is not used with a regenerative load. When this func-
tion is enabled, the torque reference on the regenerative side is automatically inhibited in the Inverter during
regeneration. Using this function in elevating machines is dangerous because the elevator may slip and fall.
Contact your Yaskawa representative for details on applications such as high-speed elevators (speed: 2 m/s or higher),
direct-drive elevators, or Inverters designed for cranes.
