Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) Commissioning - ForGe Control - Manual (Page 30)

30 Rockwell Automation Publication 7000-IN012B-EN-P - June 2014
Chapter 4 Commissioning the Drive
Inspection Process
Before commissioning the drive line-up, you must inspect the process to which
the drive is applied. This step is not only important as a means of identifying and
understanding how the equipment design adapts to the customer’s application,
but also to identify any potential hazards. Review the process and identify any
necessary measures to ensure that commissioning the equipment will not expose
anyone to hazardous situations, or in any way do damage to the equipment
involved in the application.
Safety Tests
Complete this section of the commissioning chapter to ensure that the
commissioning continues in an environment safe to all those involved in servicing
the drive line-up. Complete every point in this section prior to continuing with
the drive commissioning. Ensure that you perform the drive commissioning in
accordance with local safety standards.
Lockout Tagout
Prior to opening the doors to the drive line-up cabinets, ensure you use proper
lockout tagout procedures to ensure that the working environment is safe. In
addition, test the equipment for potential prior to servicing the equipment. Even
though the input to the drive may be open, it is still possible for potential to be
present.
ATTENTION: Verify that the load is not turning due to the process. A
freewheeling motor can generate voltage that will be back-fed to the
equipment being serviced. Take all action necessary to ensure that motor
regeneration into the drive does not occur while the equipment is being
serviced.
ATTENTION: Servicing energized industrial control equipment can be
hazardous. Severe injury or death can result from electrical shock, burn, or
unintended actuation of control equipment. Hazardous voltages may exist in
the cabinet even with the circuit breaker in the off position. Recommended
practice is to disconnect or lock out control equipment from power sources, and
confirm discharge of stored energy in capacitors. If it is necessary to work in the
vicinity of energized equipment, the safety related work practices of NFTA 70E,
Electrical Safety requirements for Employee Work places, must be followed.
ATTENTION: Before attempting any work, verify the system has been locked
out and tested to have no potential.