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Rockwell Automation Publication 750-UM006C-EN-P - March 2022
Chapter 2
Prepare for Installation
WARNING:
Circumstances that can cause an explosion may exist, which may
lead to personal injury or death, property damage, or economic loss.
• Tripping of the instantaneous-trip circuit breaker is an indication that a fault
current has been interrupted. Current-carrying components of magnetic
motor controller should be examined and replaced if damaged to reduce the
risk of fire or electrical shock.
• Incoming power requirements must be a delta-Wye solid ground neutral to
maintain the CE/UL certification. If the user supplied input power
distribution exceeds 20 times the drive rating kVa, additional impedance
must be supplied in the form of an input line reactor or isolation
transformer.
ATTENTION:
Do not operate controls or open covers without appropriate
personal protective equipment. Failure to comply will result in serious injury
or death.
ATTENTION:
The drive contains high-voltage capacitors that take time to
discharge after removal of the main supply. Before working on the drive,
isolate the main power supply from line inputs (L1, L2, L3). Wait 3 minutes
for the capacitors to discharge to minimal voltage levels. Failure to do so may
result in personal injury or death.
