7
Safety instructions
3ADW000488R0101 DCS880 Service manual e a
Grounding
These instructions are intended for all who are responsible for the grounding of the drive. Incorrect grounding
can cause physical injury, death and/or equipment malfunction and increase electromagnetic interference.
WARNING
−
Ground the drive, motor and adjoining equipment to ensure personnel safety in all
circumstances, and to reduce electromagnetic emission and pick-up.
−
Make sure that grounding conductors are adequately sized and marked as required by
safety regulations.
−
In a multiple-drive installation, connect each drive separately to protective earth (PE
).
−
Minimize EMC emission and make a 360° high frequency grounding (e.g. conductive
sleeves) of screened cable entries at the cabinet lead-through plate.
−
Do not install a drive equipped with an EMC filter to an ungrounded power system or a high
resistance-grounded (> 30
Ω
) power system.
Note:
−
Power cable shields are suitable as equipment grounding conductors only when
adequately sized to meet safety regulations.
−
As the normal leakage current of the drive is higher than 3.5 mA
AC
or 10 mA
DC
(stated by
EN 50178, 5.2.11.1), a fixed protective earth connection is required.
Printed circuit boards and fiber optic cables
These instructions are intended for all who handle the circuit boards and fiber optic cables. Ignoring the
following instructions can cause damage to the equipment.
WARNING
−
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.
−
Use grounding strip:
−
−
ABB order no.: 3ADV050035P0001
WARNING
−
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 (1.38 in.).
Mechanical installation
These notes are intended for all who install the drive. Handle the unit carefully to avoid damage and injury.
WARNING
−
DCS880 sizes H4 ... H8: The drive is heavy. Do not lift it alone. Do not lift the unit by the
front cover. Place units H4 … H6 only on its back.
−
DCS880 sizes H6 ... H8: The drive is heavy. Lift the drive by the lifting lugs only. Do not tilt
the unit. The unit will overturn from a tilt of about 6 degrees.
−
Make sure that dust from drilling does not enter the drive when installing. Electrically
conductive dust inside the unit may cause damage or lead to malfunction.
−
Ensure sufficient cooling.
−
Do not fasten the drive by riveting or welding.