Siemens SINUMERIK 840D sl Function Manual page 51

03.06
S Motor Modules
By appropriately connecting terminal "EP" for the individual Motor Modules be-
longing to a group.
Note
The grouping must be identical in both monitoring channels.
If a fault in a drive results in a safe standstill (SH), this does not automatically
mean that the other drives in the same group also switch to safe standstill (SH).
The assignment is checked while testing the shutdown paths. Whereby the opera-
tor selects safe standstill for each group. The check is drive specific.
Example: terminal grouping for safe standstill (SH)
It must be possible to select/deselect safe standstill separately for group 1 (drive 1
and 2) and group 2 (drive 3 and 4).
In addition, the same grouping for safe standstill must be assigned on both the
Control Unit and the Motor Modules.
Selecting/de-selecting
Selecting/
deselecting
Group 1
SH
Group 2
Fig. 4-2 Example: terminal grouping for safe standstill (SH)
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
NCU7x0
SH
p9620
X122.4
r0722.
p9620
M
p9620
X122.3
r0722.
p9620
M
Safety Functions Integrated in the Drive
4.2 Safe standstill (SH)
M
EP
Drive 1
Drive 2
Line Single
Motor
Module
Module
Drive 3
Drive 4
Drive
1
Group 1
M M M
EP EP EP
Double Single
Motor Motor
Module Module
Drive Drive
4
2 3
Group 2
4-51