User`s guide

Chapter 4: System Operation
For more information on status codes, go to the Adept Document Library on the Adept website,
and in the Procedures, FAQs, and Troubleshooting section, look for the Adept Status Code
Summary document.
4.3 Brakes
The robot has a braking system that decelerates the robot in an emergency condition, such as
when the emergency stop circuit is open or a robot joint passes its softstop.
The braking system will not prevent you from moving the robot manually once the robot has
stopped (and high power has been removed).
In addition, Joint 3 has an electromechanical brake. The brake is released when high power is
enabled. When high power is turned off, the brake engages and holds the position of Joint 3.
Brake Release Button
Under some circumstances you may want to manually position Joint 3 on the Z-Axis without
turning on high power. For such instances, a 'Z' Brake Release button is located above the
robot status panel, as shown in Figure 4-2. When 24 V system power is on, pressing this
button releases the brake, which allows movement of Joint 3.
NOTE:24 Volt robot power must be ON to release the brake.
If this button is pressed while high power is on, high power will automatically shut down.
WARNING:When the Brake Release button is pressed,
Joint 3 may drop to the bottom of its travel. To prevent
possible damage to the equipment, make sure that Joint 3
is supported while releasing the brake and verify that the
end-effector or other installed tooling is clear of all
obstructions.
4.4 Front Panel
2
3
4
Auto
Mode
Manual
Mode
5
1
Figure 4-3. Front Panel
Adept Cobra ePLC600/800 Robot, User’s Guide, Rev A
Page 41 of 108