Siemens SINAMICS S150 - Page 380

Functions, monitoring, and protective functions
9.4 Extended functions
Drive converter cabinet units
380 Operating Instructions, 07/07, A5E00288214A
Table 9-10 DDS switch without load gearbox position tracking
DDS p186
(MDS)
p187
(encoder_1)
p188
(encoder_2)
p189
(encoder_3)
Encoder
for
position
control
p2502
Mechan.
relationships
p2504/
p2505/
p2506 or
p2503
Load
gearbox
position
tracking
Changeover response
0 0 EDS0 EDS1 EDS2 encoder_1 xxx disabled ---
1 0 EDS0 EDS1 EDS2 encoder_1 xxx disabled Switching during pulse
inhibition or operation has
no effect
2 0 EDS0 EDS1 EDS2 encoder_1 yyy disabled Pulse disabling: Position
actual value
preprocessing is newly
initiated
1)
and reference
bit
2)
is reset.
Operation:
Error message is
generated. Position actual
value preprocessing is
newly initiated
1)
and
reference bit
2)
is reset.
3 0 EDS0 EDS1 EDS2 encoder_2 xxx disabled
4 0 EDS0 EDS3 EDS2 encoder_2 xxx disabled
5 1 EDS4 EDS1 EDS2 encoder_1 xxx disabled
6 2 EDS5 EDS6 EDS7 encoder_1 zzz disabled
Pulse disabling: Position
actual value
preprocessing is newly
initiated
1)
and reference
bit
3)
is reset.
Operation:
Error message is
generated. Actual position
value conditioning newly
set
1)
and reference bit
3)
is reset.
7 3 EDS0 EDS1 EDS2 encoder_1 xxx disabled MDS switching alone
during pulse disable or
operation has no effect
1)
Is newly initiated means: For absolute encoders, the absolute value is newly read out, and for incremental encoders, a
restart will take place as after POWER ON.
2)
For incremental encoders, r2684.11 (Reference point set) is reset, and for absolute encoders, the status of
the adjustment (p2507) is reset as well.
3)
For incremental encoders, r2684.11 (reference point set) is reset, and for absolute encoders, the adjustment
status (p2507) is not reset because the EDS differs from the original one.