■
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
188 Resistor braking
Содержание ACS880-04FXT
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 04FXT drive module packages Hardware manual ...
Страница 2: ......
Страница 4: ......
Страница 40: ...40 ...
Страница 54: ...54 ...
Страница 82: ...82 ...
Страница 86: ...M10 86 Electrical installation ...
Страница 106: ...106 ...
Страница 114: ...FSO xx safety functions module connection X12 See the user manual of the FSO xx module 114 Control unit of the drive ...
Страница 118: ...118 ...
Страница 122: ...122 ...
Страница 132: ...132 ...
Страница 136: ...136 ...
Страница 158: ...158 ...
Страница 160: ...Standard configuration IP00 UL Type Open 160 Dimension drawings ...
Страница 161: ...Drive module with optional support brackets IP00 UL Type Open Dimension drawings 161 ...
Страница 162: ...Drive module with optional full size input and output power cable terminals and IP20 shrouds 162 Dimension drawings ...
Страница 163: ...Mounting plate opening 3AXD50000038119 Dimension drawings 163 ...
Страница 164: ...3AXD50000038119 164 Dimension drawings ...
Страница 182: ... Declaration of conformity 182 The Safe torque off function ...
Страница 183: ...The Safe torque off function 183 ...
Страница 184: ...184 ...