Table of Contents
Advertisement
Operating instructions
Contents of this chapter
This chapter instructs in the basic operations of the brake unit with the DC
switch/disconnector (option +F286).
Disconnecting the brake unit from the drive DC bus
1.
Stop all motors and inverter units that can regenerate energy back to the DC link.
Keep them stopped when the brake unit is disconnected.
2.
Open the DC switch/disconnector [Q11] of the brake unit.
Connecting the brake unit to the drive DC bus
If you connect voltage to the brake unit for the first time, obey the brake unit start-up
instructions.
If you connect voltage to the brake unit after the first start-up, obey these instructions:
1.
Make sure that the auxiliary power supply of the brake unit is connected and the
drive DC link is powered up.
2.
Close the charging switch [Q10]. The brake unit capacitor charging starts.
3.
When the green light on the cabinet door illuminates, close the DC
switch/disconnector [Q11] of the brake unit.
4.
Open the charging switch [Q10].
Operating instructions 69
8
Advertisement
Table of Contents
