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Planning the installation of the BSFC unit
WARNING!
Use a grounding wristband when you handle printed circuit boards. Do not touch
the boards unnecessarily. The boards contain components sensitive to electrostatic
discharge.
￭
Placing
Install the BSFC unit in a heated indoor environment. Make sure that the temperature meets
the requirement given in the technical data. Also make sure that the ambient conditions
meet the requirements of the hardware manual of the inverter modules.
Do not install the BSFC unit far from the inverters. The length of the fiber optic cable(s)
between the unit and the inverter(s) must not be more than 4 m (13.1 ft).
WARNING!
No condensation is permitted. There are connectors that are connected to drive
main circuit potential.
WARNING!
Protect the BSFC unit against accidental contact. There are connectors that are
connected to drive main circuit potential.
￭
List of components needed in power supply circuit
•
DC switch-disconnector kit (DC switch-disconnector, BSFC unit, charging switch,
1)
charging resistors)
•
DC fuses for inverter
•
Charging circuit fuses
•
Fiber optic cables for BSFC – inverter connection (one pair for each inverter)
•
Main DC supply cables/busbars
•
Charging circuit cables, BSFC power supply cables, DC switch-disconnector control
cables.
1) Only available from ABB.
Make sure that all components meet the ABB specifications. For the charging circuit wire
specification, see chapter
ABB or equivalent. The cables are connected to the drive main circuit.
Circuit diagrams (page
25). Always use cables recommended by
Installation 21
10
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