4. Strip the required length of the external and internal cables insulation.
Figure 20: Insulation stripping – AC
5. Open the AC cable gland and insert the cable through the AC gland.
WARNING!
Turn OFF the AC before connecting the AC terminals. If connecting equipment grounding wire,
connect it before connecting the AC Line and Neutral wires.
6. If using a separate wire / cable for grounding , insert the additional wire/ cable for grounding through
the PE gland.
l
Strip the required length of the external and internal cables insulation.
l
Open the PE cable gland and insert the cable through the PE gland.
7. Connect the grounding wire to the grounding terminal block and tighten with a torque of
15N*m / 12 lb*ft.
8. Remove the screws from the AC terminal blocks.
9. Crimp ring terminals on the AC wires.
10. Connect the wires to the terminal blocks with a proper tool according to the labels on the terminals.
11. Tighten the screws of each terminal with a torque of 2.0 N*M / 18 lb-in
Figure 21: Wire connections to terminal block
Wire type
Connect to terminal
Line 1
L1
Line 2
L2
Line 3
L3
Neutral
N
12. Place the cover on the terminal block and push until lyou hear a click.
Secondary Grounding
If required, ground the units as described in the following figure using a grounding cable, a grounding
screw,two washers, a ring terminal and a serrated washer. You can connect the grounding cable to
either side of a unit and to either the mounting hole or grounding screw. You can connect grounding to
the Primary Unit and to each of the Secondary Units, as required.
Chapter 4: Connecting the AC and Strings to the Connection Unit
Three Phase Inverter with synergy technology Guide MAN-01-00402-1.1
31
