Safety Precautions and Warnings
Product User Manual
Operating Instructions, Version AE 12/2009, A5E01454341C
15
WARNING
• Always comply with local codes and requirements if disposal of failed components is
necessary (for example, CPU battery, capacitors, etc.).
• Always ensure the use of an even and flat truck bed to transport the GenIV drive
system. Before unloading, be sure that the concrete pad is level for storage and
permanent positioning.
• Always confirm proper tonnage ratings of cranes, cables, and hooks when lifting the
drive system. Dropping the cabinet or lowering it too quickly could damage the unit.
• Never disconnect control power while medium voltage is energized. This could cause
severe system overheating and/or damage.
• Never store flammable material in, on, or near the drive enclosure. This includes
equipment drawings and manuals.
• Never use fork trucks to lift cabinets that are not equipped with lifting tubes. Be sure that
the fork truck tines fit the lifting tubes properly and are the appropriate length.
CAUTION
ESD Sensitive Equipment!
• Always be aware of electrostatic discharge (ESD) when working near or touching
components inside the GenIV cabinet. The printed circuit boards contain components
that are sensitive to static electricity. Handling and servicing of components that are
sensitive to ESD should be done only by qualified personnel and only after reading and
understanding proper ESD techniques. The following ESD guidelines should be
followed. Following these rules can greatly reduce the possibility of ESD damage to PC
board components.
• Always transport static sensitive equipment in antistatic bags.
• Always use a soldering iron that has a grounded tip. Also, use either a metallic vacuum-
style plunger or copper braid when desoldering.
• Make certain that anyone handling the GenIV printed circuit boards is wearing a
properly grounded static strap. The wrist strap should be connected to ground through a
1 megohm resistor. Grounding kits are available commercially through most electronic
wholesalers.
• Static charge buildup can be removed from a conductive object by touching the object to
a properly grounded piece of metal.
• When handling a PC board, always hold the card by its edges.
• Do not slide printed circuit boards across any surface (e.g., a table or work bench). If
possible, perform PCB maintenance at a workstation that has a conductive covering that
is grounded through a 1 megohm resistor. If a conductive tabletop cover is unavailable,
a clean steel or aluminum tabletop is an excellent substitute.
• Avoid plastic, Styrofoam
TM
, vinyl and other non-conductive materials. They are excellent
static generators and do not give up their charge easily.
• When returning components to Siemens LD A, always use static-safe packing. This
limits any further component damage due to ESD.
Additional safety precautions and warnings appear throughout this manual. These important
messages should be followed to reduce the risk of personal injury or equipment damage.
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