ABB ACS560 Hardware Manual page 142

142 Resistor braking
• Resistance R must be between R
type.
• The resistor must be able to dissipate energy E
Equations for selecting the resistor:
Eq. 1.
Eq. 2.
Eq. 3.
=calculated brake resistor value (ohm). Make sure that:
= maximum power during the braking cycle (W)
= average power during the braking cycle (W)
= energy conducted into the resistor during a single braking pulse (J)
= length of the braking pulse (s)
= length of the braking cycle (s).
The table shows reference resistor types for the maximum braking power.
Type
ACS560
3-phase U = 380 or 480V, 1 min/5 min duty use
N
02A6-4
03A3-4
3AYNSBR-RES99
04A0-4
05A6-4
07A2-4
3AYNSBR-RES53
09A4-4
12A6-4
3AYNSBR-RES32
017A-4
025A-4 3AYNSBR-RES23
033A-4 3AYNSBR-RES16
Part No. R
min
ohm
99
53
32
23
16
and R given in the table for the used drive
min max
during the braking cycle T.
Rpulse
t
on
T
For conversion, use 1 hp = 746 W
P P
max cont
kW kW
2.2 1.1
4 2
7.5 3.75
11 5.5
15 7.5
P
Rmax
P
Rave
Energy (KJ)
400 sec.
440
800
1500
2200
3000