Chapter 5: System Operation In addition, the three inner-arm motors have electromechanical brakes, which are released when high power is enabled. When high power is disabled, the brakes engage and hold the position of the platform fixed. Brake-Release Button Under some circumstances, you may want to manually position the platform without enabling high power. For such instances, a Brake-Release button is located on the underside of the robot base. When system power is ON, pressing this button releases the brakes, which allows move- ment of the arms.
Joint 4 Cover Mounting Pad x3 Status Display Panel Joint 1 Robot Base Cover Inner Arm Motor Plug Robot Base Joint 2 Status LED/ High-power Lamp Theta Drive Shaft Brake- Release Button Ball Joints, Joint 3 Outer Arms J4 Platform and Ball Joints Tool Flange Figure 5-2. Brake Release and LED Light If this button is pressed while high power is ON, high power automatically shuts down. NOTE: 24 Volt robot power must be ON to release the brakes. WARNING: When the Brake-Release button is pressed, the platform and end-effector may drop to the bottom of its travel.
To prevent possible damage to the equipment, make sure that the platform is supported when releasing the brakes and verify that the end-effector or other installed tool- ing is clear of all obstructions. Hornet 565 Robot User's Guide, 14608-000 Rev C Page 67 of 156