Motor Controllers AC Variable Frequency Drives Type VariFlex
3
RVLF
Specications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 13/12/2017 137
Safety Precautions
DANGER
Electrical Shock Hazard
Do not connect or disconnect wiring while the power is on.
Failure to comply will result in death or serious injury.
WARNING
Electrical 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 drives without covers or safety shields to show details. Be sure to
reinstall covers or shields before operating the drives and run the drives 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 specied
on the drive before touching any components.
Do not allow unqualied personnel to perform work on the drive.
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 AC drives.
Do not perform work on the drive 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 drive.
Do not remove covers or touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
Fire Hazard
Tighten all terminal screws to the specied tightening torque.
Loose electrical connections could result in death or serious injury by re due to overheating of electrical
connections.
Do not use an improper voltage source.
Failure to comply could result in death or serious injury by re.
Verify that the rated voltage of the drive matches the voltage of the incoming power supply before applying
power.
Do not use improper combustible materials.
Failure to comply could result in death or serious injury by re.
Attach the drive to metal or other noncombustible material.
Appendix 2: Instructions for UL
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