The drive continuously monitors the current output to the motor using Hall Effect sensors or shunt resistors. When the drive is stopped (or at the start of a run command), the expected current feedback should be (allowing for a tiny tolerance). If the feedback value is higher than the allowable offset level (typically >10-20% of the drive rated current), the drive triggers H66 to prevent uncontrolled torque or damage.
This data tells you if H66 occurs at high speed, under heavy load, or during deceleration. yaskawa error code h66
or a related temperature fault. This code is most commonly associated with older Yaskawa inverter series like the GPD 506/P5 GPD 515/G5 Yaskawa America Understanding the H66 Error The drive continuously monitors the current output to
: Ensure that no two analog functions are mapped to the same terminal. For example, if terminal A1 and A2 are both trying to control "Frequency Reference," the drive may trip an error. This data tells you if H66 occurs at
in many Yaskawa drives) to reduce the energy dissipated through the resistor. Verify Duty Cycle