How the brakes work
Debugging brake problems
180211: turret brakes fail.
Current sensor not reaching correct current level.
When a brake problem occurs, it will typically show up in the TurFlt line with BrkFail.
The image below shows the turret brake schematic:
||Brake off command. Analog output to release
||Monitors the brake off command going to
||Monitors the output of the brake current
sensor going to the IsReleasedCoil has reached the correct
||Monitors that the IsReleasedCoil is working
||Monitors that the ReleaseCoil is working
||Monitors the turret interlock key. If set,
then turret can not be moved
If any of the inputs are not working, first check the opto
isolators for that bit ( since they tend to fail first)..
Note that the specified bits count from 0, not 1.
processing: x101/180212/turretbrakes.xcf (used by gimp
On 11feb18 there were turret brake failures.
Turret status during brake failure
The current sensor was readjusted, and will be replaced.