HP 30 HP30 - Manual (Page 5)

Use an insulation-rectified motor or take measures to suppress the micro surge voltage when driving 400V
class motor with inverter. A micro surge voltage attributable to wiring constant is generated at motor terminals,
and may deteriorate insulation and damage motor.
Before operating unit and prior to user programming, reset user parameters to default settings.
Inverter can easily be set to high-speed operations, Verify capability of motor or machinery prior to operating
unit.
Stopping torque is not produced when using the DC-Break function. Install separate equipment when stopping
torque is needed.
(5) Fault prevention precautions
Provide a safety backup such as an emergency brake which will prevent the machine and equipment from
hazardous conditions if the inverter fails.
(6) Maintenance, inspection and parts replacement
Do not conduct a megger (insulation resistance) test on the control circuit of the inverter.
Refer to Chapter 8 for periodic inspection (parts replacement).
(7) Disposal
Handle the inverter as an industrial waste when disposing of it.
(8) General instructions
Many of the diagrams and drawings in this instruction manual show the inverter without a circuit breaker, a
cover or partially open. Never run the inverter like this. Always place the cover with circuit breakers and follow
this instruction manual when operating the inverter.