EN
56
5.6.1 Final fastening operations
• Tighten the two hexagonal junction screws
(32)
with a tightening
torque of 10 Nm.
• Tighten the two side bracket screws
(29)
(supplied) with a
tightening torque of 5 Nm, to avoid the tilting of the bottom part
of the inverter.
A
B
29
5.6.2 Interface cables connection
Last operation (before proceed with the wiring and connections of
external AC and DC sources) is to connect the interface connectors
that allow the power and the communication connection between
the power module
(01)
and the wiring box
(02)
.
• Connect the AC interface cables
(51)
coming from the
wiring box to the respective anchor points:
- R, S, T cables should be connected to the AC interconnection
board
(58)
using the nuts supplied with the power
module component kit (tightening torque 8Nm).
- Internal earth cable should be connected to the PE
inteconnection point
(64)
using the nut and the two serrated
lock washers supplied with the power module component kit
(tightening torque 4Nm).
• Connect the 6 DC interface cables
(50)
coming from the wiring box
in the dedicated connectors of the DC interconnection board
(59)
.
CH6
CH5
CH4
CH3
CH2
CH1
CH2
CH1
CH4
CH3
CH6
CH5
50
CH6
CH5
CH4
CH3
CH2
CH1
CH2
CH1
CH4
CH3
CH6
CH5
59
• Connect the interface signal cables
(30)
on the related interface
signal connectors
(65)
starting from the back connector.