Siemens SINUMERIK 840D sl Function Manual page 72

Safety Functions Integrated in the Drive
4.6 Commissioning the STO, SBC and SS1 functions
Table 4-1 Commissioning the "STO", "SBC" and "SS1" functions, continued
No. Parameter
6
p9620 = "Value"
Terminal "EP"
7
p9650 = "Value"
p9850 = "Value"
4-72
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Description and comments
Set terminals for Safe Torque Off (STO)
Set the signal source for STO on the Control Unit
Connects terminal "EP" (Enable Pulses) on the Motor Module.
S
Control Unit monitoring channel:
By appropriately interconnecting BI: p9620 for the individual drives, the fol-
lowing is possible:
– Selecting/deselecting the STO
– the terminals for safe standstill can be grouped
Digital input DI 0 ... DI 7 on the Control Unit can be used as a signal source
(NCU). DI 0 ... DI 3 (NX).
S
Motor Module monitoring channel:
By wiring the "EP" terminal accordingly on the individual Motor Modules, the
following is possible:
– Selecting/deselecting the STO
– Terminal groups for STO
Note:
The STO terminals must be grouped identically in both monitoring channels.
Set F–DI changeover tolerance time
F–FI changeover tolerance time on Control Unit
F–DI changeover tolerance time on Motor Module
S
The parameters are not changed until safety commissioning mode has
been exited (i.e. when p0010 0 95 is set).
S
Due to the different runtimes in the two monitoring channels, an F–DI
changeover (e.g. selection/deselection of STO) does not take immediate
effect. After an F–DI changeover, dynamic data is not subject to a data
cross–check during this tolerance time.
S
Both parameters are contained in the crosswise data comparison and must,
therefore, be "identical". A difference of one safety monitoring clock cycle is
tolerated.
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05.08