Electrical Adjustment; Removing The Upper Case - Magnescale CH02-01 Bedienungsanleitung

3. Electrical Adjustment

The CH02/03 series must be electrically adjusted together
with the used scale unit. Perform this adjustment according
to the procedures outlined below. Electrical adjustment is
performed in order to optimize the PM (Phase Modulation)
signal from the scale. Therefore, if the adjustment is not
performed as specified, the scale accuracy specifications
will not be satisfied.
Required items
• Oscilloscope
( Sensitivity : 0.01 V or more,
frequency bandwidth : 1 MHz or more)
Input sensitivity : AC0.1 V/div (1 using a 10 : 1 probe)
Horizontal axis sweep : 50 ms/div to 0.5 ms/div
Trigger source : INT
Trigger mode : AUTO
• Standard screwdriver (for rotating the trimmer)
• Phillips screwdriver
(for removing and mounting the upper case)
(for opening and closing the shield cover)
〈1〉 Removing the upper case
Remove the two M2.6 screws mounting the upper case of
the Interpolation box and remove the upper case.
Take care not to lose the nuts at this time.
M2.6
Upper case
Fig. 1
M2.6
Nuts
17