ABB ACS850-04 series, Hardware Manual

Page: 19 / 164

Safety instructions
19
Printed circuit boards
Safe start-up and operation
General safety
These warnings are intended for all who plan the operation of the drive or operate
the drive.
Permanent magnet motor drives
WARNING! Do not run the motor over the rated speed. Motor overspeed leads to
overvoltage which may damage or explode the capacitors in the intermediate circuit
of the drive.
WARNING! Ignoring the following instructions can cause damage to the printed
circuit boards:
•
Wear a grounding wrist band when handling the boards. Do not touch the
boards unnecessarily. The printed circuit boards contain components sensitive
to electrostatic discharge.
WARNING! Ignoring the following instructions can cause physical injury or death,
or damage to the equipment:
•
Before adjusting the drive and putting it into service, make sure that the motor
and all driven equipment are suitable for operation throughout the speed range
provided by the drive. The drive can be adjusted to operate the motor at
speeds above and below the speed provided by connecting the motor directly
to the power line.
•
Do not activate any automatic fault reset functions of the drive control program
if dangerous situations can occur. When activated, these functions will reset
the drive and resume operation after a fault.
•
Do not control the motor with an AC contactor or disconnecting device;
instead, use the control panel keys
and , or commands via the I/O
board of the drive. The maximum allowed number of charging cycles of the DC
capacitors, ie, power-ups by applying power, is five in ten minutes.
Note:
•
If an external source for start command is selected and it is ON, the drive will
start immediately after an input voltage break or fault reset unless the drive is
configured for 3-wire (a pulse) start/stop.
•
When the control location is not set to local, the stop key on the control panel
will not stop the drive.