Mitsubishi Electric FR-E720-600 Instruction Manual page 145

The zero current detection level setting should not be too high, and the zero current detection time setting not
too long. Otherwise, the detection signal may not be output when torque is not generated at a low output
current.
To prevent the machine and equipment from resulting in hazardous conditions detection signal, install a
safety backup such as an emergency brake even the zero current detection function is set valid.
Parameters referred to
Offline auto tuning Refer to page 113
Pr. 190 to Pr. 192 (output terminal function selection)
Function assignment of external terminal and control
CAUTION
Refer to page 137
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