ABB RDNA-01 Bedienungsanleitung Seite 290

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290 ACS550-01/U1 User’s Manual
Technical data
The many variables in the last requirement above are most easily dealt with using
the following tables.
First, determine your maximum braking time ON (ON
MAX
), minimum braking time
OFF (OFF
MIN
) and load type (deceleration or overhauling load).
Calculate duty cycle:
In the appropriate table, find the column that best matches your data:
–ON
MAX
< column specification and
Duty cycle <
column specification
Find the row that matches your drive.
The minimum power rating for deceleration to zero is the value in the selected
row/column.
For overhauling loads, double the rating in the selected row/column, or use the
“Continuous ON” column.
208…240 V drives
Type
ACS550-
01/U1-
see below
Resistance Resistor
1
minimum continuous power rating
Deceleration-to-zero rating
P
rcont
Continuous ON
> 60 s ON
> 25% Duty
R
MAX
R
MIN
P
r3
< 3 s ON
>
27 s OFF
<
10% Duty
P
r10
< 10 s ON
>
50 s OFF
<
17% Duty
P
r30
< 30 s ON
>
180 s OFF
<
14% Duty
P
r60
< 60 s ON
>
180 s OFF
<
25% Duty
ohm ohm W W W W W
Three-phase supply voltage, 208…240 V
-04A6-2 234 80 45 80 120 200 1100
-06A6-2 160 80 65 120 175 280 1500
-07A5-2 117 44 85 160 235 390 2200
-012A-2 80 44 125 235 345 570 3000
-017A-2 48 44 210 390 575 950 4000
-024A-2 32 30 315 590 860 1425 5500
-031A-2 23 22 430 800 1175 1940 7500
1
Resistor time constant specification must be > 85 seconds.
Time
Power
Deceleration curve
Overhauling load
curve
Time
Temperature
Avg. braking power
during deceleration
Avg. braking power –
overhauling load
x
2x
to zero
Duty cycle =
(ON
MAX
+ OFF
MIN
)
· 100%
ON
MAX
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