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Start-up
Contents of this chapter
This chapter contains the start-up procedure of the brake unit.
The symbols in brackets, for example [Q1], refer to the item designations used in the circuit
diagrams. If a task is valid only for a certain option device or feature, the option code is
given in brackets, for example, (option +F286).
ABB recommends that you connect a commissioning PC tool (DriveComposer) to the brake
unit for the start up. By using the tool, you can set up parameters and monitor the drive
during the test.
These instructions do not cover all start-up tasks of all possible variants of the brake unit.
Always refer to the unit-specific circuit diagrams when proceeding with the start-up.
Start-up procedure
Tasks
Safety
WARNING!
Obey the safety instructions during the start-up procedure. See ACS880 liquid-cooled multidrive
cabinets and modules safety instructions (3AXD50000048633 [English]). If you ignore the
safety instructions, injury or death, or damage to the equipment can occur.
If you are not a qualified electrical professional, do not do installation or maintenance work.
WARNING! Make sure that the disconnector of the supply transformer is locked to open position, ie,
no voltage is, or can be, connected to drive inadvertently. Check also by measuring that there is no
voltage connected.
Note: Some brake resistors are coated with oil film for protection. The protective oil will burn off when the
brake resistor is used for the first time. Make sure that there is proper ventilation.
Start-up 59
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