Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) - Manual (Page 53)

Rockwell Automation Publication 7000-IN006B-EN-P - May 2013 49
Commissioning the Drive Chapter 5
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.
Refer to local safety guidelines for detailed procedures on how to safely isolate the
equipment from hazards.
Only open the door to the medium voltage cabinets after you successfully
complete the lockout and tagout.
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.
ATTENTION: Live capacitors in circuit. Before touching anything, ensure that
the drive is isolated from medium voltage and wait five minutes for the
capacitors to discharge. Test the circuit for potential before servicing the
equipment. Failure to do so can result in severe injury or death.
ATTENTION: Ensure that the motor is not spinning due to a driven load. A
spinning motor can generate a high potential into the drive’s motor filter
capacitors, which can result in severe injury or death.