Efficient-networks Siemens Sinamics S120 User Manual Page 317

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Safety Integrated basic functions
9.6 Control via terminals on the Control Unit and the power unit
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
317
The assignment is checked during the test for the switch-off signal paths, The operator
selects "Safe Torque Off" for each group. The check is drive-specific.
Example: Terminal groups
It must be possible to select/deselect "Safe Torque Off" separately for group 1 (drive 1 and
2) and group 2 (drive 3 and 4).
For this purpose, the same grouping for "Safe Torque Off" must be performed on both the
Control Unit and the Motor Modules.
0
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Figure 9-3 Grouping terminals with Motor Modules Booksize and CU320
Information on the parallel connection of chassis type Motor Modules
When Motor Modules of chassis type are connected in parallel, a safe AND element is
created on the parallel drive object. The number of indexes in p9620 corresponds to the
number of parallel chassis components in p0120.
Simultaneity and tolerance time of the two monitoring channels
The "Safe Torque Off" function must be selected/deselected simultaneously in both
monitoring channels using the input terminals and is only effective for the associated drive.
1 signal: Deselecting the function
0 signal: Selecting the function
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