Brake Release Tool Does Not Work - ABB CRB 15000 Product Manual

7.4 Brake release tool does not work

Description
The holding brake of a motor is not released using the brake release tool.
Consequences
The robot axis can not be manually moved.
Possible causes
The symptom can be caused by:
Recommended actions
The following actions are recommended:
1
2
3
Product manual - CRB 15000
3HAC077389-001 Revision: L
• The RobotWare version is 7.10 or higher. Then the brakes are released using
the FlexPendant, see
• Damaged magnet on the brake release tool.
• Faulty power supply to the brake.
• Incorrect usage of the brake release tool:
- There has been an attempt to use the brake release mechanism while
the robot is in mode MOTORS ON.
- There has been an attempt to use the brake release mechanism in
automatic operating mode.
- There has been an attempt to use the brake release mechanism during
the startup phase of the controller, that is, before the controller is fully
operational.
- There has been an attempt to use the brake release mechanism while
the manipulator is moving.
- There has been a very brief application of the magnet to the brake
release points, for example, by accident.
• Faulty joint electronic hardware.
Action
Look for damage to the magnet.
Replace the tool if damaged.
Verify that the brake release tool is used
correctly.
Check the brake power supply to the motor
during the Motors OFF state.
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7.4 Brake release tool does not work
Manually releasing the brakes on page
Information
Brake release tool: 3HAC079146-001
The spare parts related to the brake re-
lease function using the external tool are
discontinued from Q2 2023.
See Manually releasing the brakes with
the external tool on page
See the circuit diagram.
Check for any recorded fault status.
7 Troubleshooting
69.
Note
71.
Continues on next page
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