ABB Robotics IRB 4600 Manual page 60

2 Installation and commissioning
2.3.3 Manually releasing the brakes
Continued
Using an external voltage supply directly on the respective brake
This procedure details how to release the holding brake of a specific axis by
supplying external voltage directly on the brake.
1
2
60
Action
Every axis has a holding brake built into the
axis motor. This holding brake may be re-
leased by connecting 24VDC power supply
directly to one of the connectors in the motor.
DANGER
When power is connected directly to the
brake cable, the brake will be released imme-
diately when the power is switched on.
This may cause some unexpected robot
movements!
Connect an external 24 VDC power supply
to the motor, according to the figures.
Note
Be careful not to interchange the 24V and 0V
pins!
If they are mixed up, damage can be caused
to the intergrated quenching circuits.
WARNING
Incorrect connections can cause all brakes
to be released simultaneously!
© Copyright 2009-2021 ABB. All rights reserved.
Note
Make the connection to the current motor
according to the Circuit Diagram.
See chapter Circuit diagram on page
Axes 1, 2 and 3:
Pos 2: +24 V
Pos 5: 0 V
xx1400001984
Product manual - IRB 4600
3HAC033453-001 Revision: Y
393.