97
Rear transducer 178-182
Front transducer 358-002
Comments: The shown values are those calculated in the latest calibration performed.
C72 Measurement of angular deviation
Options: Press “+/-” key to switching over between rear and front transducers.
Special function: None.
Description
1. Remove wheel or test rotor and centering cone from the adaptor.
With power clamp ! t the spacer bushing, the medium centering cone and the clamping sleeve
without clamping head onto the bushing and carry out clamping operation.
Set code C72.
2. Press low the wheel guard in order to initiate temporary compensation of unbalance.
3. Insert the user calibration weight into the adaptor " ange so that it extends to the left and
ow the wheel guard.
4. Insert the user calibration weight into the adaptor " ange so that it extends to the right and
ow the wheel guard.
After three measuring runs the angle for the rear transducer is read out.
The step numbers are indicated on the left display:
angle = arg(2
nd
measuring run – 1
st
measuring run) - arg(3
rd
measuring run – 1
st
measuring run)
Comments: Values saved in two new persistent objects.
C74 Display of angular position of main shaft, incremental encoder test
Options: Press “+/-” key to switching over between position reading and reading of incremental encoder " ags, and
vice versa.
Press “RETURN” key to reset the incremental encoder " ags.
Special function: Reset of incremental encoder " ags
Description: Once this code is called up, the angular position and incremental encoder status register are display
continuously.
On digital machines the angular position is displayed in initially. Pressing the Option key toggles the right-hand display
between angular location and status register.
For a short tes t turn the main sha ft at least 2 turns in bo th directions, the sta tus register then
must show 2 3F . For detailed status information see below.
Angular position:
As long as the incremental encoder has not jet synchronized with the zero reference, the angular location reading is
“- - -”.
After synchronization the angular position is display as a value in a range between 0 and 511.
Status register:
The status register is read out in form of a three-digit hexadecimal code XYZ:
X signals the status of the incremental encoder:
0 not initialised (only in case of an software malfunction)
1 not synchronised
2 synchronised
YZ covers the 8 " ags er, ev, sr, sv, ba, ab, b, a
a A channel signal available
b B channel signal available
ab phase sequence channel A before B identi! ed (reverse rotation)
ba phase sequence channel B before A identi! ed (foreward rotation)
sv zero reference identi! ed in forward rotation
sr zero reference identi! ed in backward rotation
ev synchronising error in forward rotation
er synchronising error in backward rotation