Electric Shock Hazard 
 
Do not operate equipment with covers removed. 
Failure to comply could result in death or serious injury. 
The diagrams in this section may show inverters without covers or safety shields to show details. Be sure to 
reinstall covers or shields before operating the inverters and run the inverters according to the instructions 
described in this manual. 
 
Always ground the motor-side grounding terminal. 
Improper equipment grounding could result in death or serious injury by contacting the motor case. 
 
Do not touch any terminals before the capacitors have fully discharged. 
Failure to comply could result in death or serious injury. 
Before wiring terminals, disconnect all power to the equipment. The internal capacitor remains charged even 
after the power supply is turned off. After shutting off the power, wait for at least the amount of time specified 
on the inverter before touching any components. 
 
Do not allow unqualified personnel to perform work on the inverter. 
Failure to comply could result in death or serious injury. 
Installation, maintenance, inspection, and servicing must be performed only by authorized personnel familiar 
with installation, adjustment, and maintenance of inverters. 
 
Do not perform work on the inverter while wearing loose clothing, jewelry, or lack of eye protection. 
Failure to comply could result in death or serious injury. 
Remove all metal objects such as watches and rings, secure loose clothing, and wear eye protection before 
beginning work on the inverter. 
 
Do not remove covers or touch circuit boards while the power is on. 
Failure to comply could result in death or serious injury.