Figure 17: AC Cable and Ground Connections to Inverter with DC Safety Unit
4. Connect the Protective Earth Wire of the AC Cable to the PE Terminal. Alternatively,
route a Protective Earth Wire through the PE Gland and connect the wire to the PE
Terminal. Tighten the screw of the PE Terminal with a torque of 1.5 N*m / 1.1 lb*ft.
Tighten the Earth Cable Gland with a torque of 2.5 N*m / 1.84 lb*ft.
WARNING!
5. Open the AC cable gland of the DC Safety Unit and insert the cable through the
gland (See
Figure 17
).
6. Strip the external cable insulation, as shown in
Figure 17
, and expose 10 mm to 11
mm / 0.4 '' of wire insulation (
Figure 15
).
7. Connect the remaining wires according to the labels on the AC Terminal Block of the
inverter. Tighten the screws of the Terminal Blocks with a torque of 1.2-1.5 N*m /
0.88-1.1 lb*ft.
8. Tighten the DC Safety Unit AC cable gland with a torque of 6 N*m / 4.4 lb*ft.
Three Phase Inverter with SetApp Configuration PN: SEXXK-XXXXIXXXX
35 Connecting the ACGrid to the Inverter or to the DC Safety Switch
Always connect the PE Protective Earth Wire first (See Figure 17). The
Ground point of the inverter and the Terminal of the DC Safety Unit are
linked by a grounding wire. Do not disconnect the wire on either side!