Safety Instructions
iv
601/604/607 US Supplement
Installation and
Maintenance Safety
These safety instructions are intended for all work on the ACx 600. In
addition to the instructions given below, there are more safety
instructions on the first pages of the appropriate hardware manual.
WARNING! All electrical installation and maintenance work on the
ACx 600 should be carried out by qualified electricians.
The ACx 600 and adjoining equipment must be properly grounded.
Do not attempt any work on a powered ACx 600. After switching off the
power, always allow the intermediate circuit capacitors 5 minutes to
discharge before working on the drive, the motor or the motor cable. It
is good practice to check (with a voltage indicating instrument) that the
drive is in fact discharged before beginning work.
The ACx 600 motor cable terminals are at a dangerously high voltage
when power is applied, regardless of motor operation.
The brake control terminals (UDC+, UDC-, R+ and R- terminals) carry
a dangerous DC voltage (over 500V).
There can be dangerous voltages inside the ACx 600 from external
control circuits when the ACx 600 input power is shut off. Exercise
appropriate care when working with the unit. Neglecting these
instructions can cause physical injury and death.
WARNING! The ACx 600 introduces electric motors, drive train
mechanisms and driven machines to an extended operating range.
The ACx 600 can be adjusted to operate the motor at speeds above
and below the speed provided by connecting the motor directly to the
power line. Before adjusting the drive and putting it into service, make
sure that the motor and all driven equipment is suitable for operation
throughout the speed range provided by the AC drive.
WARNING! If an external source for start command is selected and it is
ON, the ACx 600 will start immediately after fault reset unless the drive
is configured for 3-wire Start/Stop.
WARNING! When the control location is not set to Local (L not shown
in the status line of the display), the Stop key on the Control Panel will
not stop the drive. To stop the drive using the Control Panel you must
press the LOC/REM key and then the Stop key
.
WARNING! The printed circuit boards contain integrated circuits that
are extremely sensitive to electrostatic discharge. Exercise appropriate
care when working on the unit to avoid permanent damage to the
circuits. Do not touch the boards unnecessarily.
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