Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual - Manual (Page 113)

This chapter describes how to inspect troubles and take recovery
actions.
ATTENTION: Only qualified electrical personnel
familiar with the construction and operation of this
equipment and the hazards involved should install,
adjust, operate or service this equipment. Read and
understand this instruction manual in its entirety
before proceeding. Failure to observe this precaution
could result in destruction of the equipment, severe
bodily injury or loss of life.
ATTENTION: Do not install or remove any
components with power applied to the 8720MC-RPS
unit. Disconnect and lock out incoming power before
attempting such installation or removal. Failure to
observe this precaution could result in destruction of
the equipment, severe bodily injury or loss of life.
ATTENTION: DC bus capacitors retain hazardous
voltages after input power has been disconnected.
After disconnecting input power, wait for a while for
the DC bus capacitors to discharge and then check the
voltage with a voltmeter to ensure the DC bus
capacitors are discharged before touching any internal
components. Failure to observe this precaution could
result in destruction of the equipment, severe bodily
injury or loss of life.
1. Be sure that the input disconnect is in the correct position,
either ON or OFF, depending on the work to be performed.
2. A backup technician must be in line of sight when the work is
being performed, to assist in case of emergency.
ATTENTION: Do not use a megger to perform
continuity checks in the 8720MC-RPS Regenerative
Power Supply. Use high resistance range of a circuit
tester for this purpose. Failure to observe these
precautions could result in damage to, or destruction
of, the unit.
3. Use one hand to hold and connect test probes of multimeter and
others.
Chapter
9
Safety Precautions
Inspecting Trouble and
Recovering
!
!
!
!