ABB IRB 6700I, Product Manual

Page: 36 / 730

1.6.2 Emergency release of the robot axes
Description
In an emergency situation, the brakes on a robot axis can be released manually
by pushing a brake release button.
How to release the brakes is described in the section:
• Manually releasing the brakes on page 68 .
The robot may be moved manually on smaller robot models, but larger models
may require using an overhead crane or similar equipment.
Increased injury
Before releasing the brakes, make sure that the weight of the manipulator does
not result in additional hazards, for example, even more severe injuries on a trapped
person.
Make sure that stored energy from the balancing device does not result in additional
hazards, such as even more severe injuries on a trapped person.
DANGER
When releasing the holding brakes, the robot axes may move very quickly and
sometimes in unexpected ways.
Release of the axis-2 motor holding brakes can cause the axis 2 to move in
opposite direction in regard to gravity, due to the pushing force from the balancing
device. Current arm load and position of the lower and upper arm determines
the occurring movement when releasing the holding brakes of the axis-2 motor.
Make sure no personnel is near or beneath the robot.
36 Product manual - IRB 6700Inv
3HAC058254-001 Revision: L
© Copyright 2017 - 2020 ABB. All rights reserved.
1 Safety
1.6.2 Emergency release of the robot axes