GS3

1. Power off.
2. Remove old drive take note of where the wires are exactly.
3. Install new drive put wires back in the exact same location.
4. Power up

GS3 Steps

1. Press Program until you reach 9

2. Press Enter

3. 9-00 should be selected Press Enter

4. Select axis number with arrow keys Press Enter

5. 9-01 should be selected Press Enter

6. Select 2 with arrow keys Press Enter

7. 9-02 should be selected Press Enter

8. Select 4 with arrow keys Press Enter.

9. Restart controlling software.