8 Electrical Connection
SMA Solar Technology AG
Operating manual STP110-60-BE-en-16 49
8.7.2 Fast stop circuitry overview
LOCAL STOP
DI1+ DI1+ DI1- DI1-
LOCAL STOP
DI1+ DI1+ DI1- DI1-
Sunny Tripower CORE2
1
Sunny Tripower CORE2
2
Trigger contact
Figure 11: Circuitry overview for connecting a contact for the fast stop and the connection of several inverters
8.7.3 Connecting contact for fast stop to digital input
You can connect a contact for the fast stop switch at the digital inputs DI1+ and DI1- of the terminal
block LOCAL STOP. The inputs are provided twice and allow the parallel connection of several
inverters (see Section8.7.2, page49). To guarantee a reliable function through parallel
connection of several devices, only inverters of the same type may be used.
Additionally required material (not included in the scope of delivery):
☐ External disconnecting device with potential-free contact to trigger the fast stop function
Procedure:
1. Connect the connection cable to the contact for the fast stop (see the manual from
manufacturer).
2. Disconnect the inverter from all voltage sources (see Section11, page66).
3. Open the cable compartment (see Section7, page33).
4. Strip off 7mm of the conductor insulation from each of the connection cable conductors.