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
3HAC065464-009
Circuit diagram - OmniCore C90XT
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
Robot signal
exchange
proxy K2
Motor connector
X1
Manipulator
Power unit
A1
Brake signal
Brake signal
Floor cable
X2
X6
X7
Contactor
Q1 & Q2
xx1800001835
Continues on next page
Product manual - OmniCore C90XT
371
3HAC073706-001 Revision: E
© Copyright 2020-2021 ABB. All rights reserved.
7 Troubleshooting
7.2.4 Problem releasing the robot brakes
Содержание OmniCore C90XT
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