7.2.4 Problem releasing the robot brakes
Description
When starting robot operation or jogging the robot, the internal robot brakes must
release in order to allow movement.
Required test equipment
Equipment needed for troubleshooting:
Note
Equipment
Multimeter
Insulating gloves
3HAC074000-008
Circuit diagram - OmniCore V250XT
Preparations
Action
Make sure that the controller is switched on.
1
Wait 30 s - 1 min to enable start-up sequence.
Check the FlexPendant for errors and warnings.
2
DANGER
Troubleshooting on the controller while powered on must be performed by personnel
trained by ABB or by ABB field engineers.
Recommended working procedure
If the brakes do not release, no robot movement is possible and a number of error
log messages can occur. Use this procedure to troubleshoot what might cause the
problem.
Look at the following block diagram to understand how power is connected from
incoming and forward.
Block diagram
Motor connector
X1
Manipulator
Power unit
A1
24V_BRAKE_PWR
24V_BRAKE_REL
Floor cable
X11
X13
X15
Main drive unit
T4
xx2100001141
Continues on next page
Product manual - OmniCore V250XT
361
3HAC073447-001 Revision: B
© Copyright 2020-2022 ABB. All rights reserved.
7 Troubleshooting
7.2.4 Problem releasing the robot brakes
Summary of Contents for OmniCore V250XT
Page 1: ...ROBOTICS Product manual OmniCore V250XT ...
Page 34: ...This page is intentionally left blank ...
Page 50: ...This page is intentionally left blank ...
Page 174: ...This page is intentionally left blank ...
Page 410: ...This page is intentionally left blank ...
Page 418: ...This page is intentionally left blank ...
Page 454: ......
Page 455: ......