Siemens SINAMICS PERFECT HARMONY GH180 - ESD-Sensitive Components

2.5 ESD-sensitive Components
Guidelines for Handling Electrostatic Sensitive Devices (ESD)
NOTICE
ESD-Sensitve Equipment
• Always be aware of electrostatic discharge (ESD) when working near or touching
components inside the SINAMICS PERFECT HARMONY GH180 cabinet. The printed circuit
(PC) boards contain components that are sensitive to electrostatic discharge. Handling and
servicing of components that are sensitive to ESD should be done only by quali󹪝ed
personnel and only after reading and understanding proper ESD techniques. The following
ESD guidelines should be observed. Following these rules can greatly reduce the possibility
of ESD damage to printed circuit 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.
• Ensure that anyone handling the 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 build-up can be removed from a conductive object by touching the object with
a properly grounded piece of metal.
• When handling a PC board, always hold the card by its edges.
• Do not slide printed circuit boards (PCBs) 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 Industry, Inc, always use static-safe packing. This
limits any further component damage due to ESD.
Electronic modules contain components that can be destroyed by electrostatic discharge.
These modules can be easily destroyed by improper handling. To protect your equipment against
damage, follow the instructions given below.
• Never touch electronic modules unless absolutely necessary in the course of maintenance
and repair procedures.
• If the modules have to be touched, the body of the person concerned must be
electrostatically discharged immediately beforehand and be grounded.
• Electronic modules should not be brought into contact with electrically insulating materials
such as plastic foil, plastic parts, insulating table supports or clothing made of synthetic 󹪝bers.
Safety notes
2.5 ESD-sensitive Components
NXGPro+ Control Manual
Operating Manual, A5E50491925A 29