MagnaTran 7.1 User’s Manual
Troubleshooting
MN-003-1600-00
Z Brake Binding Test
Brooks Automation
Revision 2.2
10-27
Z Brake Binding Test
TOOLS:
Laptop computer with Procomm or equivalent
PROCEDURE:
This procedure determines if the Z brake is inhibiting the Z leadscrew motion.
1.
Connect laptop to robot via serial communications port.
2.
Ensure the robot is referenced by issuing the command: HOME ALL.
3.
Move the robot upward to the maximum Z height by issuing the following
command:
MOVE Z ABS 25000
NOTE:
Note: the maximum Z height is normally 25 mm or 35 mm, pending the
user application. The units of measure for the following command are
micrometers (25 mm = 25000 units).
4.
Turn the servos off by issuing the following command:
SET SERVOS OFF
5.
Place a thin, protective cloth between the robot armset and the transfer cham-
ber to prevent scratching them in Step #6.
6.
Turn the Z brake off by issuing the following command:
ZBRAKE OFF
WARNING
The robot will free-fall in the Z direction. Ensure that personnel and
physical obstructions are clear of the robot’s armset and internal theta
motor housing.
The robot should move smoothly downward in the Z direction due to gravity.
Allow the robot to fall freely in the Z direction until it stops on its own.