SMA STP 110-60 - Fast Stop Circuitry Overview; Connecting Contact for Fast Stop to Digital Input

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 Section8.7.2, page49). 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 Section11, page66).
3. Open the cable compartment (see Section7, page33).
4. Strip off 7mm of the conductor insulation from each of the connection cable conductors.