Resistor braking 241
Thermal protection of the resistors
The standard resistors available as D151 are equipped with a thermal switch. The
switches of the resistors are wired in series and connected to the Enable input of the brake
chopper. The relay output of the chopper is wired to the supply control unit so that a
chopper fault condition stops the supply unit.
With custom resistors, a similar protection must be implemented. Use cable rated as
follows:
•
twisted pair, shielding recommended
•
rated operating voltage between a conductor and ground (
U
0
) > 750 V
•
insulation test voltage > 2.5 kV.
Keep the cable as short as possible.
Protecting the resistor cable against short-circuits
The input fuses of the drive will also protect the resistor cable provided that the resistor
cable is of the same type as the input cable.
Mechanical installation of custom brake resistors
Follow the resistor manufacturer’s instructions.
Electrical installation of custom brake resistors
Connection diagram
R+
R‚
R+
R‚
1
2
3
t
°
Brake chopper
Brake resistor
1 2
X1
Содержание ACS880-17
Страница 1: ...ABB industrial drives Hardware manual ACS880 37 drives ...
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Страница 30: ...30 Introduction to the manual ...
Страница 61: ...Mechanical installation 61 Moving the crate with a forklift Free width for fork tines 750 mm 29 5 ...
Страница 70: ...70 Mechanical installation ...
Страница 105: ...Electrical installation 105 4 5 3 6 7 ...
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Страница 111: ...Electrical installation 111 2 360 grounding detail a b b 1 5 a 11 b a PE 10 7 5 6 8 ...
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Страница 134: ...134 Control units of the drive ...
Страница 140: ...140 Start up ...
Страница 142: ...142 Fault tracing ...
Страница 154: ...154 Maintenance 4 5 6 7 8 6 10 10 ...
Страница 162: ...162 Maintenance 5 6 3 4 7 ...
Страница 163: ...Maintenance 163 6 8 7 11 10 9 ...
Страница 167: ...Maintenance 167 3 4b 4a 4b 8 ...
Страница 185: ...Technical data 185 Declaration of Conformity ...
Страница 186: ...186 Technical data ...
Страница 196: ...196 Dimensions Dimension drawing examples Frame 1 R8i 1 R8i ...
Страница 197: ...Dimensions 197 Frame 1 R8i 1 R8i top cable entry exit H351 H353 ...
Страница 198: ...198 Dimensions Frame 1 R8i 1 R8i with brake choppers and resistors D150 D151 ...
Страница 199: ...Dimensions 199 Frame 1 R8i 1 R8i with sine output filter E206 ...
Страница 200: ...200 Dimensions Frame 2 R8i 2 R8i eg ACS880 37 1110A 3 IP22 ...
Страница 201: ...Dimensions 201 Frame 2 R8i 2 R8i eg ACS880 37 1210A 3 IP54 ...
Страница 202: ...202 Dimensions Frame 2 R8i 2 R8i with main breaker F255 and common motor terminal cubicle H359 1 2 ...
Страница 203: ...Dimensions 203 Frame 2 R8i 2 R8i with main breaker F255 and common motor terminal cubicle H359 2 2 ...
Страница 204: ...204 Dimensions Frame 2 R8i 2 R8i with main breaker F255 and top entry top exit H351 H353 1 2 ...
Страница 205: ...Dimensions 205 Frame 2 R8i 2 R8i with main breaker F255 and top entry top exit H351 H353 2 2 ...
Страница 206: ...206 Dimensions Frame 3 R8i 3 R8i 1 2 ...
Страница 207: ...Dimensions 207 Frame 3 R8i 3 R8i 2 2 ...
Страница 208: ...208 Dimensions Frame 3 R8i 3 R8i with common motor terminal cubicle H359 1 2 ...
Страница 209: ...Dimensions 209 Frame 3 R8i 3 R8i with common motor terminal cubicle H359 2 2 ...
Страница 213: ...Dimensions 213 Units with main breaker 600 mm bottom cable entry Units with main breaker 600 mm top cable entry ...
Страница 217: ...Dimensions 217 Sine filter E206 cubicle 1000 mm top cable exit ...
Страница 219: ...Dimensions 219 Cubicle width 300 mm double busbar version bottom cable exit Cubicle width 300 mm top cable exit ...
Страница 220: ...220 Dimensions Cubicle width 300 mm double busbar version top cable exit Cubicle width 400 mm bottom cable exit ...
Страница 221: ...Dimensions 221 Cubicle width 400 mm top cable exit Cubicle width 600 mm bottom cable exit ...
Страница 222: ...222 Dimensions Cubicle width 600 mm top cable exit ...
Страница 234: ...234 The Safe torque off function ...
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