Siemens AG SPB7-250.841.01.04.02 MAMMOMAT Novation DR
05.05 CS SD 24
Grid 55
Page 55 of 64
Medical Solutions
3. Make sure that the springs move up and down easily.
Fig. 32: Grid motor location
4. Move the grid to the left and right position. Be sure that space between the grid bracket
and grid angle is the same on both sides. Otherwise loosen the two screws from the grid
motor support (1/Fig. 32 / p. 55) and adjust these spaces.
Adjusting the grid speed
1. Start the service software.
Main menu -> Configuration -> Grid speed
2. Set the parameter as shown in (Fig. 33 / p. 55).
Fig. 33: Adjusting the grid motor speed
3. Check the grid speed with the oscilloscope.
The grid speed can be measured with the oscilloscope. Also see Mammomat Novation,
System Start-up...,SPB7-250.815…, the X-Ray Tube Checks chapter, for systems
with WH AWS or Installation Instructions… SPB7-250.812…for systems with DROC:
Measurement
- Switch the system OFF.
- Connect the oscilloscope as follows:
Channel 1 to measuring point HV_ACT on the D750, 1 V/T.
Channel 2 to measuring point Grid_M on the D802, 10 V/T.