20 ACQ550-U1 User’s Manual
Installation
• For drives using braking (optional), refer to the following, as appropriate:
• When installing control wiring, refer to the following chapters or sections, as
appropriate:
– Control terminals table on page 24
– Control connections
on page 289
– Application macros on page 57
– Complete parameter descriptions on page 83
– Embedded fieldbus on page 177
– Fieldbus adapter on page 229.
Frame size Terminal Description Braking accessory
R1, R2 BRK+, BRK- Braking resistor Braking resistor. See section Brake
components on page 285.
R3, R4, R5, R6 UDC+, UDC- DC bus Contact your ABB representative to
order either:
• braking unit or
• chopper and resistor
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