
Connecting
6.4 System integration
S-1FK7 DYA G2 synchronous motors with planetary gearbox
Operating Instructions, 05/2018, A5E44881183B AA
65
Note
Integrate a protective circuit into the incoming cable. In this way, you avoid switching
overvoltages and possible influence of the installation environment. See the figure below
A
Motor
K1
Contactor
F
Circuit-breaker
S1
Holding brake
R2
Varistors
Figure 6-5
Suggested circuit for the external power supply with protective circuit
Table 6- 1
Example: Electrical components for the suggested circuit
Electrical
component
Examples
F
3RV10 circuit-breaker with current paths
connected in series (if required with mounted
auxiliary contact 3RV1901 to provide a feed-
back signal for the drive).
or
Miniature circuit-breaker 5SX21 (if required with
mounted auxiliary contact to provide a feedback
signal for the drive).
K1
Auxiliary contactor 3RH11
or
Contactor 3RT10
R2
Varistor SIOVS14K30 (EPCOS)