ACU-RITE DRO 100 - Manual (Page 20)

DRO 100 Troubleshooting
15
Incorrect Operation
If system positioning does not seem to be repeatable, the problem could be with
the machine tool or with the readout system.
• Check the machine tool.
Check that the table is not locked. Check the gib
adjustments. Check spindle run-out.
• Check linear encoders.
Check each encoder and reading head for proper
installation. Ensure that the mounting brackets are secure.
If the system seems to be displaying incorrect positions, check the following items.
• Verify grinding wheel or tool.
Check the grinding wheel or tool for wear.
• Verify linear error compensation.
Make sure that the factors used for linear
error compensation are correct.
Power-On Self Test
There are four tests performed when power is applied to the readout. You will not
notice these tests unless a problem is found, in which case a message will scroll
across the display.
Keypad—a key was detected stuck down. The message will display what row (x)
and column (y) the stuck key is in:
KEY STUCK – RxCy – PRESS CLEAR
Parameter memory—some of the system setup parameters are not valid. You
may be able to check and reset these settings, but it’s possible they will be lost
again. The readout should be serviced as soon as possible.
MEMORY FAILURE [1] – PRESS CLEAR
!
CAUTION
Some working settings are not valid. Proceed with caution.