Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 14

WARNING
Usage
 Any person must stay away from the inverter after using the retry function as the inverter will restart suddenly after
inverter output shutoff.
 It may happen depending on the inverter's function settings that the inverter does not stop its output even when the
STOP/RESET key on the operation panel is pressed. To prepare for it, provide a separate circuit and switch (to turn the
inverter power OFF, or apply a mechanical brake, etc.) for an emergency stop.
 Be sure to turn OFF the start (STF/STR) signal before clearing the fault as the inverter will restart the motor suddenly
after a fault clear.
 Do not use a PM motor for an application that the motor may be driven by the load and run at a speed higher than the
maximum motor speed.
 Use only a three-phase induction motor or PM motor as a load on this inverter. Connection of any other electrical
equipment to the inverter output may damage the equipment.
 Performing pre-excitation (by using the LX or X13 signal) during torque control (under Real sensorless vector control)
may rotate a motor at a low speed even though a start command (STF or STR) is not given. The inverter at a start
command ON may also rotate the motor at a low speed even though a speed limit value is set to zero Therefore, confirm
that the motor running does not cause any safety problem before performing pre-excitation.
 Do not modify the product.
 Do not remove any part which is not instructed to be removed in the Instruction Manuals. Doing so may lead to a failure
or damage of the product.
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