If the sensors are simultaneously opened, then sensor faults can only be identified with some
restrictions. In this case, you must individually test the function of each sensor at regular
intervals and at least once every three months.
If there is a risk of cross-circuits or short-circuits, the cables between the sensor and the inverter
must be protected, for example, by routing them in a steel tube.
Controlling several inverters simultaneously
You may control the safety functions of several inverters simultaneously with one or several
safety sensors connected in series.
If there is a risk of cross-circuits or short-circuits, the cables between the sensor and the inverter
must be protected, for example, by routing them in a steel tube.
9RXW
672B$
672B%
9
9
9
9
*1'
672B$
672B%
9
9
9
9
6,1$0,&6*
3RZHU0RGXOH30
303
6,1$0,&6*
3RZHU0RGXOH30
303
Figure 4-33 Controlling several inverters in parallel with the power supply from the inverter
Installing
4.4 Controlling via a fail-safe digital input
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
85