Resistor braking
Contents of this chapter
This chapter describes how to select, protect and wire brake choppers and resistors. The
chapter also contains the technical data.
When is resistor braking necessary?
Resistor braking is necessary for high capacity braking if a regenerative drive cannot be
used.
Operation principle and hardware description
The drive can be equipped with optional built-in brake chopper (+D150). Brake resistors
are available as add-on kits.
The brake chopper handles the energy generated by a decelerating motor. The extra energy
increases the DC link voltage. The chopper connects the brake resistor to the intermediate
DC circuit whenever the voltage in the circuit exceeds the limit defined by the control program.
Energy consumption by the resistor losses lowers the voltage until the resistor can be
disconnected.
Planning the braking system
■
Generic guidelines
This section contains generic brake cable type, length and placing instructions, rules on
how to minimize electromagnetic interference and descriptions and requirements for
protections.
19
Resistor braking 187
Summary of Contents for ACH580-04
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Page 128: ...3 6 5 5 128 Maintenance ...
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Page 156: ...R10 standard configuration 156 Dimension drawings ...
Page 157: ...R10 with E208 0H354 H356 H370 0H371 Dimension drawings 157 ...
Page 158: ...R10 with option B051 158 Dimension drawings ...
Page 159: ...R10 with option E208 H356 P906 192 Tools R10 3 1 Dimension drawings 159 ...
Page 160: ...R10 with option E208 0H371 H356 0H354 H370 P906 Tools 191 R10 2 1 160 Dimension drawings ...
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Page 162: ...R11 standard configuration 162 Dimension drawings ...
Page 163: ...R11 with option E208 0H371 H356 0H354 H370 Dimension drawings 163 ...
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Page 165: ...R11 with option E208 H356 P906 Dimension drawings 165 ...
Page 166: ...R11 with option E208 0H371 H356 0H354 H370 P906 166 Dimension drawings ...
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Page 186: ... Declaration of conformity 186 The Safe torque off function ...
Page 206: ...Dimension drawing 206 External control unit option P906 ...
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