Safety instructions8Mechanical installation and maintenanceThese instructions are intended for all who install and service the drive.Printed circuit boardsFibre optic cablesWARNING! 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 grindingsor foreign objects do not enter the drive. Electrically conductive dust inside theunit may cause damage or lead to malfunction.• Ensure sufficient cooling.• Welding of the cabinet frame is not recommended. However, if electric weldingis the only way to mount the cabinet, follow the instructions given in chapterMechanical installation. Ensure that welding fumes are not inhaled. If thewelding return wire is connected improperly, the welding circuit may damageelectronic circuits in the cabinet.• When removing the module from the cabinet and manoeuvring it outside thecabinet, prevent it from toppling over by securing it. The drive module is heavyand has a high centre of gravity.• Beware of hot surfaces. Some parts, such as heatsinks of powersemiconductors, remain hot for a while after disconnection of the electricalsupply.WARNING! Ignoring the following instructions can cause damage to the printedcircuit boards:• The printed circuit boards contain components sensitive to electrostaticdischarge. Wear a grounding wrist band when handling the boards. Do nottouch the boards unnecessarily.WARNING! Ignoring the following instructions can cause equipment malfunctionand damage to the fibre optic cables:• Handle the fibre optic cables with care. When unplugging optic cables, alwaysgrab the connector, not the cable itself. Do not touch the ends of the fibres withbare hands as the fibre is extremely sensitive to dirt. The minimum allowedbend radius is 35 mm (1.4 in.).