ABB ACS880-304 +A018, Hardware Manual

Page: 97 / 280

Electrical installation 97
General notes

Static electricity
WARNING! Circuit boards contain components sensitive to electrostatic
discharge (ESD). Wear a grounding wrist band when handling the boards. Do not
touch the boards unnecessarily.

Optical components
Handle 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 specifications of the optic cable are as follows:
•
Storage temperature: -55 … +85 °C (-67 … +185°F)
•
Installation temperature: -20 … +70 °C (-4 … +158°F)
•
Maximum short-term tensile force: 50 N (11.2 lbf)
•
Minimum short-term bend radius: 25 mm (0.98 in)
•
Minimum long-term bend radius: 35 mm (1.4 in)
•
Maximum long-term tensile load: 1 N (0.22 lbf)
•
Flexing: Max. 1000 cycles
ABB drive products in general utilize 5 and 10 MBd (megabaud) optical components from
Avago Technologies’ Versatile Link range. Note that the optical component type is not
directly related to the actual communication speed.
Note: The optical components (transmitter and receiver) on a fiber optic link must be of the
same type.
Plastic optical fiber (POF) cables can be used with both 5 MBd and 10 MBd optical
components. 10 MBd components also enable the use of Hard Clad Silica (HCS
®
) cables,
which allow longer connection distances thanks to their lower attenuation. HCS
®
cables
cannot be used with 5 MBd optical components.
The maximum lengths of fiber optic links for POF and HCS
®
cables are 20 meters (65.5 ft)
and 200 meters (656.1 ft) respectively.
HCS ® is a trademark of SpecTran Corporation.