Functions, monitoring, and protective functions
9.4 Extended functions
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
383
Table 9-11 DDS switchover with 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 enabled ---
1 0 EDS0 EDS1 EDS2 encoder_1 xxx enabled Switching during pulse
inhibition or operation has
no effect
2 0 EDS0 EDS1 EDS2 encoder_1 yyy disabled Pulse disable/operation:
Encoder adjustment and
referencing bit are reset.
Position tracking is no
longer calculated; it is not
reset until there is a new
encoder adjustment.
3 0 EDS0 EDS1 EDS2 encoder_2 xxx enabled
4 0 EDS0 EDS3 EDS2 encoder_2 xxx enabled
5 1 EDS4 EDS1 EDS2 encoder_1 xxx enabled
6 2 EDS5 EDS6 EDS7 encoder_1 zzz enabled
Pulse disable/operation:
Position tracking is
continued and referencing
bit is reset.
7 3 EDS0 EDS1 EDS2 encoder_1 xxx enabled MDS switching alone
during pulse disable or
operation has no effect
8 0 EDS0 EDS1 EDS2 encoder_1 xxx disabled Pulse disable/operation:
Position tracking for EDS0
(of the DDS0) is newly
initiated and referencing
bits are reset.
9 4 EDS6 EDS0 EDS2 encoder_1 www Not
significa
nt
Pulse disable/operation:
Position tracking for EDS
(of the DDS0) is newly
initiated and referencing
bits are reset.
Position tracking is continued:
The behavior during the switchover is the same as it would be if the data set had not even
been switched.
Position tracking newly initiated:
The behavior during the switchover is the same as the behavior after a POWER ON.
The position value read by the absolute encoder is compared to the stored value.
If the position difference is within the tolerance range, the position is corrected
correspondingly; if it is outside the range, a corresponding error message is generated.
Position tracking is reset:
The stored actual position value is rejected and the overflow counter is reset to zero.
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