NOTE: These tests are for diagnostic purposes only.
This test cycles round the LCD displaying each segment in turn.
Pressing the M+ button will display all LCD segments simultaneously.
Pressing the M- button will display the MIH software version number.
Press the M+ and M- buttons simultaneously to transfer to the encoder test.
The head should be locked during this test.
Any positional error within the A or B-axis encoders will be detected and displayed in the self test.
Press M+ and M- simultaneously to transfer to the battery test.
This function is used by Renishaw when setting the low battery indicator threshold.
To step through this function, press the M+ and M- buttons simultaneously to transfer to 'Datum mode'.