Resistor braking 343
18
Resistor braking
Contents of this chapter
This chapter describes how to select, protect and wire brake choppers and resistors
with the ACL30 drive. It also provides technical data for selecting brake choppers and
resistors.
Brake choppers and resistors
Brake choppers
The ACL30 drives have a built-in brake chopper as standard equipment to handle the
energy generated by a decelerating motor.
When the brake chopper is enabled and a resistor is connected, the chopper starts
conducting when the DC link voltage of the drive reaches low limit. The maximum
braking power is achieved at high limit.
Low and high limits can be calculated:
Low limit
= 1.35 * 1.25 * USED SUPPLY VOLT - 30
High limit
= Low limit + 60
Содержание ACL30
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Страница 20: ...20 Safety instructions ...
Страница 34: ...34 Operation principle and hardware description ...
Страница 42: ...42 Planning the cabinet installation ...
Страница 60: ...60 Planning the electrical installation ...
Страница 126: ...126 Using the control panel ...
Страница 318: ...318 Maintenance ...
Страница 334: ...334 The Safe torque off function ...
Страница 338: ...338 Mains chokes ...
Страница 342: ...342 EMC filters ...
Страница 348: ...Dimension drawings 348 Frame size B D1 D2 W H1 H2 ...
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Страница 350: ...Dimension drawings 350 Frame size C D1 D2 H2 H1 W ...
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Страница 352: ...Dimension drawings 352 Frame size D ...
Страница 354: ...354 Dimension drawings EMC filters JFI 0x ...
Страница 356: ...356 Dimension drawings Brake resistors JBR xx ...
Страница 358: ...358 Dimension drawings ...
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