Resistor Braking, Frames R4; Planning The Braking System - ABB ACS560 Hardware Manual

146 Resistor braking
With these parameter settings, the drive generates a fault and coasts to a stop on brake
resistor overtemperature.
WARNING!
If the drive is equipped with a brake chopper but the chopper is not enabled by
the parameter setting, the internal thermal protection of the drive against resistor
overheating is not in use. In this case, the brake resistor must be disconnected.
Resistor braking, frames R4...R8
￭

Planning the braking system

Frames R4...R8 need external brake choppers and resistors. The table below lists suitable
choppers and resistors. Other resistors can also be used as long as the minimum resistance
value and required power values are met.
For more information, see NBRA-6xx Braking Choppers Installation and start-up guide
(3AFY58920541 [English]) and ACS-BRK Brake Units Installation and start-up guide
(3AFY61514309 [English]).
Type
ACS560
3-phase UN = 380 or 480V
062A-4
073A-4
088A-4
106A-4
145A-4
169A-4
206A-4
246A-4
293A-4
Symbols
= minimum allowed brake resistor that can be connected to the brake chopper
= maximum allowed brake resistor that allows
= maximum braking capacity of the drive, must exceed the desired braking power.
Brakechopper
ohm
ACS-BRK-D 7.8
ACS-BRK-D 7.8
ACS-BRK-D 7.8
NBRA-658 1.3
NBRA-658 1.3
NBRA-658 1.3
NBRA-658 1.3
NBRA-658 1.3
NBRA-658 1.3
ohm kW hp
18.1 30 40.2 Built in with the brake chopper
13.1 42 56.3 Built in with the brake chopper
10.7 51 68.4 Built in with the brake chopper
8.7 63 84.5 SAFUR125F500
7.1 77 103.2 SAFUR125F500
5.2 105 140.8 SAFUR200F500
4.3 126 168.9 SAFUR200F500
3.5 156 209.1 2xSAFUR125F500
2.9 187 250.7 2xSAFUR210F575
Reference resistor types