ABB MicroFlex e150 User Manual

Technical data 143
 Resistor choice
P
av
is the value to use when assessing which brake resistor to use. However, a safety
margin of 1.25 times is recommended to ensure the resistor operates well within its
limits*, so:
Required resistor power rating = 1.25 × P
av
________________ W (watts)
The range of suitable brake resistors is shown in the following table. Choose the
resistor that has a power rating equal to or greater than the value calculated above.
WARNING! The brake resistance must be 39 Ω or greater to ensure the
drive’s maximum regeneration switching current (10 A) is not exceeded.
Failure to observe the minimum resistance could result in damage to the drive. See
Brake (X1) on page 140.
Dimensions of brake resistors are shown in Brake resistors on page 169.
* The brake resistors listed in the table above can withstand a brief overload of 10
times the rated power for 5 seconds. Please contact ABB if larger power ratings are
required.
Part Resistance Power rating
RGJ139 39 Ω 100 W
RGJ160 60 Ω 100 W
RGJ260 60 Ω 200 W
RGJ360 60 Ω 300 W

ABB MicroFlex e150 Specifications

General

Brand	ABB
Model	MicroFlex e150
Category	Control Unit
Language	English