[horseshoecnc]

Help!! Does anyone know how to adjust the x- axis lag on a 1991 Tree 325. It has MSI Motor Drives and it has been a really great machine for us.

[underthetire]

The balance pot on the x axis card sets standing lag, should be as close to zero as possible. The tach pot adjust moving lag. Pots are labeled on the board.

[horseshoecnc]

OK thanks for the input, but I am not sure which one to adjust. There are 6 different spots to adjust on that board. Top to bottom they are listed as;
YC , SG , BL , RC , PC , TG.
Any idea??

[jagardner4]

I'm more familiar with the Servo Dynamic drives, but I'll take a swag:

YC - don't know
SG - Signal Gain (Command Voltage Input Scaling)
BL - Balance
RC - Compensation
PC - don't know
TG - Tachometer Gain

If you're happy with how the Y axis is working, I would suggest that you adjust the lag on the X axis to match Y. I think you'll find that you can adjust the lag by moving the SG pot.

Balance (BL) should be adjusted with the axis at rest. You're looking for a lag amount of zero, but there always seems to be +/- .0001"

[underthetire]

I'm more familiar with the Servo Dynamic drives, but I'll take a swag:

YC - don't know
SG - Signal Gain (Command Voltage Input Scaling)
BL - Balance
RC - Compensation
PC - don't know
TG - Tachometer Gain

If you're happy with how the Y axis is working, I would suggest that you adjust the lag on the X axis to match Y. I think you'll find that you can adjust the lag by moving the SG pot.

Balance (BL) should be adjusted with the axis at rest. You're looking for a lag amount of zero, but there always seems to be +/- .0001"

Swing and a hit.