Mechanical Installation And Maintenance; Printed Circuit Boards; Fibre Optic Cables - ABB ACS800-U7 Hardware Manual

8

Mechanical installation and maintenance

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:
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•
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Printed circuit boards

WARNING! Ignoring the following instructions can cause damage to the printed
circuit boards:
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Fibre optic cables

WARNING! Ignoring the following instructions can cause equipment malfunction
and damage to the fibre optic cables:
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Safety instructions
Cover the drive when installing to ensure that dust from borings and grindings
or foreign objects do not enter the drive. Electrically conductive dust inside the
unit may cause damage or lead to malfunction.
Ensure sufficient cooling.
Welding of the cabinet frame is not recommended. However, if electric welding
is the only way to mount the cabinet, follow the instructions given in chapter
Mechanical installation. Ensure that welding fumes are not inhaled. If the
welding return wire is connected improperly, the welding circuit may damage
electronic circuits in the cabinet.
When removing the module from the cabinet and manoeuvring it outside the
cabinet, prevent it from toppling over by securing it. The drive module is heavy
and has a high centre of gravity.
Beware of hot surfaces. Some parts, such as heatsinks of power
semiconductors, remain hot for a while after disconnection of the electrical
supply.
The printed circuit boards contain components sensitive to electrostatic
discharge. Wear a grounding wrist band when handling the boards. Do not
touch the boards unnecessarily.
Handle the fibre optic cables with care. When unplugging optic cables, always
grab the connector, not the cable itself. Do not touch the ends of the fibres with
bare hands as the fibre is extremely sensitive to dirt. The minimum allowed
bend radius is 35 mm (1.4 in.).