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.
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Resistor braking 191
Summary of Contents for ACS880-04F-504A-3
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 04F drive modules Hardware manual ...
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Page 143: ... Package dimensions Package dimensions without IP shroud kit Technical data 143 ...
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Page 160: ...Standard configuration IP20 UL Type Open 160 Dimension drawings ...
Page 161: ...Drive module with options E208 and H370 IP20 UL Type Open Dimension drawings 161 ...
Page 162: ...Drive module with options 0B051 E208 0H371 IP00 UL Type Open 162 Dimension drawings ...
Page 163: ...Drive module with options 0B051 E208 0H371 C217 IP00 UL Type Open Dimension drawings 163 ...
Page 164: ...Drive module with options 0B051 0H371 IP00 UL Type Open 164 Dimension drawings ...
Page 165: ...Mounting plate opening 3AXD50000038119 Dimension drawings 165 ...
Page 166: ...3AXD50000038119 166 Dimension drawings ...
Page 167: ...External control unit 3AXD50000011687 Dimension drawings 167 ...
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