General Notes; Static Electricity; Optical Components; Checking The Insulation Of The Assembly - ABB ACS880-107 Hardware Manual

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 (1.0")
•
Minimum long-term bend radius: 35 mm (1.4")
•
Maximum long-term tensile load: 1 N (3.6 ozf)
•
Flexing: Max. 1000 cycles
ABB drive products in general utilize 5 and 10 MBd (megabaud) optical components from
Avago Technologies' Versatile Link range. Please 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
which allow longer connection distances thanks to their lower attenuation. HCS
cannot be used with 5 MBd optical components.
The maximum lengths of fiber optic links for POF and HCS
(65 and 656 feet) respectively.

Checking the insulation of the assembly

Inverter unit


Do not make any voltage tolerance or insulation resistance tests on the inverter unit as this
may cause damage. Every drive system has been insulation tested between the main
circuit and the chassis at the factory. Also, there are voltage-limiting circuits inside the
drive which cut down the testing voltage automatically.
Electrical installation 65
®
) cables,
® cables
®
cables are 20 and 200 meters