Hardware Description; Contents Of This Chapter; Overview - ABB BSFC-02C Hardware Manual

Hardware description 11

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Hardware description

Contents of this chapter

This chapter shows an overview of the BSFC units and describes the connectors, settings
and LEDs. In addition, it contains circuit diagram examples of the DC supply circuit of
ACS880 frame R8i modules, and describes switch-on and switch-off sequences of the units.

Overview

ACS880 frame size R8i inverter modules can be connected to the drive DC bus through a
disconnector (or fuse-switch). This configuration requires a charging circuit to charge the
DC capacitors of the modules in a controlled way. The DC voltage can be directly connected
to the modules only after the capacitors are charged to a sufficient level. The BSFC is a unit
that monitors the charging, and controls switch-on and switch-off of the DC voltage.
In addition to inverter units, the BSFC can be used with other units consisting of R8i modules,
such as brake or DC/DC converter units. One BFSC unit can control the charging of up to
3 frame R8i modules.
The BSFC unit can be installed onto a standard mounting rail.