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Identificazione: MD-AL-GI-00
Rev. 4.0 del 31.01.18 - Applicazione: GID
Manual of 07/06/2019 Rev. 1.1 “User Manual for 20K-33KTL”
Prerequisites:
Prepare the PGND cables to be connected (AWG 8 outdoor power cables with a cross-section of 8 mm
2
are
recommended for grounding purposes);for better identification, use yellow-green cables.
Procedure:
1)
Remove an adequate length of the external insulation layers using a wire stripper, as shown in figure 18.
Note:
L2 is approximately 2-3 mm longer than L1
Figure 19 – Preparing the ground cable (1)
2)
Insert the exposed wires in the OT terminal and crimp them using a crimping tool, as shown in figure
19.
Note 1
: L3 is the length between the insulation layer of the ground cable and the crimped part.
L4 is
the distance between the crimped part and the conductor wires protruding from the crimped part.
Note 2
: The cavity formed after the conductor has been crimped must completely wrap the
conductor wires.
The core of the wire must be in close contact with the terminal.
Figure 20 – Preparing the ground cable (2)
3)
Install the crimped OT terminal and flat washer using the M6 screw in the hole located on the
inverter heatsink, as shown in the figure; tighten the screw to a torque of 5 Nm using an Allen key.
Note:
To ensure the anti-corrosion performances of the ground terminals, apply silica gel on them after
connecting the ground cable.
