Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual - Manual (Page 30)

Publication 1398-5.2 – PDF 1997
1-4 Safety
●
All non-qualified personnel should maintain a safe distance from
the equipment.
●
The system must be installed in accordance with local regulations.
●
The equipment is intended for permanent connection to a main
power input. It is not intended for use with a portable power input.
●
Do not power up the unit without the covers in place and the
protective conductor connected.
●
Do not operate the unit without connecting the motor conductor to
the appropriate terminal on the drive.
●
Always remove power before making or removing any connection
on the unit.
●
Before removing the cover of the unit, shut off the main power
and measure the DC bus voltage to verify it has reached a safe
level or wait for the time as indicated on the front of the drive.
●
Do not make any connections to the internal circuitry.
Connections on the front panel are the only points where users
should make connections.
●
Be careful of the DC bus and shunt terminals. High voltage is
present when power is applied to the drive.
●
Never connect the DC- (negative) terminal to earth ground, the
drive requires a floating DC bus.
●
Do not use the ENABLE input as a safety shutdown. Always
remove power to a drive before maintaining or repairing the unit.
● Motors without thermal protection devices require a valid thermal
time constant. Otherwise the motor overload protection will not
function properly.