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Selecting a custom brake resistor
If you use other than ABB resistor,
1.
make sure that the resistance of the custom resistor is greater than or equal to the
resistance of the default ABB resistor.
where
Resistance of the custom resistor
R
WARNING!
Never use a brake resistor with a resistance smaller than
R
min
. The drive and the
chopper are not able to handle the overcurrent caused by the small resistance.
Resistance of the default resistor
R
min
WARNING!
Never use a brake resistor with a resistance smaller than
R
min
. This will cause
overcurrent that will damage the brake chopper and the drive.
2.
make sure that the resistance of the custom resistor does not restrict the braking
capability needed, ie.
where
Maximum power generated by the motor during braking
P
max
Drive intermediate DC circuit voltage.
1.35 · 1.2 · 415 V DC (when supply voltage is 380 to 415 V AC)
1.35 · 1.2 · 500 V DC (when supply voltage is 440 to 500 V AC) or
1.35 · 1.2 · 690 V DC (when supply voltage is 525 to 690 AC)
U
DC
Resistance of the custom resistor
R
190 Resistor braking
Содержание ACH580-04
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Страница 128: ...3 6 5 5 128 Maintenance ...
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Страница 156: ...R10 standard configuration 156 Dimension drawings ...
Страница 157: ...R10 with E208 0H354 H356 H370 0H371 Dimension drawings 157 ...
Страница 158: ...R10 with option B051 158 Dimension drawings ...
Страница 159: ...R10 with option E208 H356 P906 192 Tools R10 3 1 Dimension drawings 159 ...
Страница 160: ...R10 with option E208 0H371 H356 0H354 H370 P906 Tools 191 R10 2 1 160 Dimension drawings ...
Страница 161: ...R10 with option B051 P906 190 Tools R10 1 1 Dimension drawings 161 ...
Страница 162: ...R11 standard configuration 162 Dimension drawings ...
Страница 163: ...R11 with option E208 0H371 H356 0H354 H370 Dimension drawings 163 ...
Страница 164: ...R11 with option B051 164 Dimension drawings ...
Страница 165: ...R11 with option E208 H356 P906 Dimension drawings 165 ...
Страница 166: ...R11 with option E208 0H371 H356 0H354 H370 P906 166 Dimension drawings ...
Страница 167: ...R11 with option B051 P906 Dimension drawings 167 ...
Страница 186: ... Declaration of conformity 186 The Safe torque off function ...
Страница 206: ...Dimension drawing 206 External control unit option P906 ...
Страница 211: ...Dimension drawing The dimensions are in millimeters and inches CHDI 01 115 230 V digital input extension module 211 ...
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