Measuring System Switchover; Gantry Axes - Siemens SINUMERIK 840D sl Function Manual

Interaction with other functions

12.4 Gantry axes

STOPs
The setting MD36964 SAFE_IPO_STOP_GROUP <> 0 is not permissible for the SI axis, as
this causes the interpolating relationships to be cancelled.
Brake test
The brake test can only be carried-out in the SI axis. The SI axis must have the drive checking
function for the brake test.
Acceptance test
The acceptance test for non-SI axes must be manually carried-out and logged. The acceptance
test does not provide any support.
12.3

Measuring system switchover

When measuring systems are changed-over (selected) via interface signals
"Position measuring system 1" (DB 31..., DBX1.5)
"Position measuring system 2" (DB 31..., DBX1.6), the following applies:
The encoder used by the position controller is changed-over.
Note
SI continues to work with the parameterized encoder.
12.4 Gantry axes
Stop responses STOP A, B, C for gantry axes are initiated as fast as possible for all of the
axes in the group. However, if unacceptable offsets result because of the differing braking
behavior of the axes, then stop response Stop D should be configured.
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Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated