ACQ550-U1 User’s Manual 287
Technical data
380…480 V drives
500…600 V drives
WARNING! Never use a brake resistor with a resistance below the minimum value
specified for the particular drive. The drive and the internal chopper are not able to
handle the overcurrent caused by the low resistance.
Symbols
R
MIN
– Minimum allowed resistance of the braking resistor.
R
MAX
– Maximum resistance allowed if maximum braking torque is necessary.
Type
ACQ550-
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, 380…480 V
-03A3-4 641 120 65 120 175 285 1100
-04A1-4 470 120 90 160 235 390 1500
-05A4-4 320 120 125 235 345 570 2200
-06A9-4 235 80 170 320 470 775 3000
-08A8-4 192 80 210 400 575 950 4000
-012A-4 128 80 315 590 860 1425 5500
-015A-4 94 63 425 800 1175 1950 7500
-023A-4 64 63 625 1175 1725 2850 11000
1
Resistor time constant specification must be > 85 seconds.
Type
ACQ550-
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, 500…600 V
-02A7-6 548 80 93 175 257 425 1462
-03A9-6 373 80 137 257 377 624 2144
-06A1-6 224 80 228 429 629 1040 3573
-09A0-6 149 80 342 643 943 1560 5359
-011A-6 110 60 467 877 1286 2127 7308
-017A-6 75 60 685 1286 1886 3119 10718
1
Resistor time constant specification must be > 85 seconds.
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