General Safety - ABB ACS880+N5350 User Manual

Before installation and maintenance work on the drive:
• Stop the motor.
• Ensure that there is no voltage on the drive power terminals according to step 1 or 2, or if possible, according to the both
steps.
1. Disconnect the motor from the drive with a safety switch or by other means. Check by measuring that there is no
voltage present on the drive input or output terminals (L1, L2, L3, U/T1, V/T2, W/T3, UDC+, UDC-).
2. Stray wind currents can rotate the motor and generate electric potentials. Ensure that the motor is not rotating or is
disconnected from the drive during work. Shorting and isolation contactors can be used to short the motor leads and
isolate the drive from the motor.

1.2.2 General Safety

These instructions are intended for all who install and service the drive.
WARNING: Ignoring the following instructions can cause physical injury or death, or damage to the equipment:
• Handle the unit carefully.
• Frame sizes R6 to R9: Lift the drive using the lifting eyes of the unit. Do not tilt the drive. The drive is heavy and its center
of gravity is high. An overturning unit can cause physical injury.
• Beware of hot surfaces. Some parts, such as heatsinks of power semiconductors, remain hot for a while after
disconnection of the electrical supply.
• Ensure that debris from borings and grindings does not enter the drive when installing. Electrically conductive debris
inside the unit may cause damage or malfunction.
• Ensure sufficient cooling.
• Do not attach the drive by riveting or welding.
Printed Circuit Boards
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.
3AXD50000011888
Figure 1-1
Introduction 1-3