Resistor braking
142
• the resistance does not restrict the braking capacity needed, that is,,
where
• the heat dissipation capacity
(E
R
) is sufficient for the application (see step 3
above).
Optional brake chopper and resistor(s)
The nominal ratings for dimensioning the brake resistors for the ACS800-07/U7 are
given below at an ambient temperature of 40 °C (104 °F).
P
max
maximum power generated by the motor during braking
U
DC
voltage over the resistor during braking, eg,
1.35 · 1.2 · 415 VDC (when supply voltage is 380 to 415 VAC),
1.35 · 1.2 · 500 VDC. (when supply voltage is 440 to 500 VAC) or
1.35 · 1.2 · 690 VDC (when supply voltage is 525 to 690 VAC).
R
resistor resistance (ohm)
ACS800-07/U7
type
Frame
size
Braking power of the chopper and
the drive
Brake resistor(s)
5/60 s
P
br5
(kW)
10/60 s
P
br10
(kW)
30/60 s
P
br30
(kW)
P
brcont
(kW)
Type
R
(ohm)
E
R
(kJ)
P
Rcont
(kW)
400 V units
-0075-3
R5
-
-
-
70
SAFUR80F500
6
2400
6
-0100-3
R6
-
-
-
83
SAFUR125F500
4
3600
9
-0120-3
R6
-
-
-
113
SAFUR125F500
4
3600
9
-0135-3
R6
-
-
-
132
SAFUR200F500
2.70
5400
13.5
-0165-3
R6
-
-
-
132
SAFUR200F500
2.70
5400
13.5
-0205-3
R6
-
-
-
160
SAFUR200F500
2.70
5400
13.5
-0260-3
R8
240
240
240
173
2XSAFUR210F575
1.70
8400
21
-0320-3
R8
300
300
300
143
2xSAFUR200F500
1.35
10800
27
-0400-3
R8
375
375
273
130
4xSAFUR125F500
1.00
14400
36
-0440-3
R8
473
355
237
120
4xSAFUR210F575
0.85
16800
42
-0490-3
R8
500
355
237
120
4xSAFUR210F575
0.85
16800
42
500 V units
-0105-5*
R5
-
-
-
83
SAFUR80F500
6
2400
6
-0120-5
R6
-
-
-
113
SAFUR125F500
4
3600
9
-0140-5
R6
-
-
-
135
SAFUR125F500
4
3600
9
-0165-5
R6
-
-
-
160
SAFUR125F500
4
3600
9
-0205-5
R6
-
-
-
160
SAFUR125F500
4
3600
9
-0255-5*
R6
-
-
-
200
SAFUR200F500
2.7
5400
13.5
-0270-5**
R8
240
240
240
240
2xSAFUR125F500
2.00
7200
18
-0300-5**
R8
280
280
280
280
2xSAFUR125F500
2.00
7200
18
-0320-5
R8
300
300
300
300
2xSAFUR125F500
2.00
7200
18
-0400-5
R8
375
375
375
234
2XSAFUR210F575
1.70
8400
21
-0440-5
R8
473
473
450
195
2xSAFUR200F500
1.35
10800
27
-0490-5
R8
480
480
470
210
2xSAFUR200F500
1.35
10800
27
-0550-5
R8
600
400
4)
300
170
4xSAFUR125F500
1.00
14400
36
-0610-5
R8
600
3)
400
4)
300
170
4xSAFUR125F500
1.00
14400
36
P
max <
U
DC
R
2
Summary of Contents for ACS800-U7
Page 1: ...ACS800 Hardware Manual ACS800 07 Drives 45 to 560 kW ACS800 U7 Drives 50 to 600 hp ...
Page 4: ......
Page 28: ...Operation principle and hardware description 28 ...
Page 51: ...Planning the electrical installation 51 ...
Page 60: ...Planning the electrical installation 60 ...
Page 76: ...Electrical installation 76 ...
Page 84: ...Motor control and I O board RMIO 84 ...
Page 112: ...Maintenance 112 ...
Page 138: ...Dimensional drawings 138 Frame sizes R5 and R6 64778340_1 5 K ...
Page 139: ...Dimensional drawings 139 Frame sizes R7 and R8 68749930_1 7 C ...
Page 140: ...Dimensional drawings 140 IP54 and IP54R units of frame sizes R7 and R8 68749930_6 6 C ...
Page 148: ...3AFE64702165 Rev H EN 2012 09 19 Contact us www abb com drives www abb com drivespartners ...