Safety instructions
17
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:
• 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 of the unit.
• Use extreme caution when manoeuvring heavy inverter, supply and filter
modules.
• Beware of hot surfaces. Some parts inside the drive cabinet, such as heatsinks of
power semiconductors, remain hot for a while after the disconnection of the
electrical supply.
• Pay attention to rotating cooling fans. The cooling fans may continue to rotate for
a while after the disconnection of the electrical supply.
• Recommendation: Do not fasten the cabinet by riveting or welding. 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.
Printed circuit boards
Fiber optic cables
WARNING! Ignoring the following instructions can cause damage to the printed
circuit boards:
•
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.
WARNING! Ignoring the following instructions can cause equipment malfunction
and damage to the fiber optic cables:
•
Handle the fiber optic cables with care. When unplugging optic cables, always
grab the connector, not the cable itself. Do not touch the ends of the fibers with
bare hands as the fiber is extremely sensitive to dirt. The minimum allowed
bend radius is 35 mm (1.4 in.).
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