Hologic QDR 4500 - MOTOR$TY (QDR 4500 A and W)

QDR

4500 Technical Manual
4-16
MOTOR$TY (QDR 4500A and W)
Before beginning this procedure, make sure that the TY motor encoder
is not
clamped to the
drive shaft tubing.
1. Select the TY motor device driver by typing
MOTOR$TY<Enter>
2. At the MOTOR$TY> prompt in SQDRIVER.EXE, type
CALIBRATE<Enter>
The program starts TY moving to the left and prompts
Press <Enter> when the TY motor reaches the LEFT mechanical limit.
Press <ESC> to stop calibration.
The program moves the TZ motor to its topmost position and then starts TY moving to the
left.
3. When TY hits the left mechanical stop the first time, press
<ESC>
.
The program returns to the MOTOR$TY menu page (below).
In the right hand column of the display, eight lines from the bottom (and highlighted in the
figure below), is the raw a/d readback of the motor encoder (in the example below, it is
2048). Manually rotate the encoder until the readback is 3750±50 (i.e., in the range 3700-
3800) and then clamp the encoder to the drive shaft, making sure not to over stress the clamp.