EN
57
ATTENTION –
A
For connection to the network in South
Africa: according to NRS097-2-1 requirements, at the end
of installation it is mandatory to apply the label at the left
(supplied with the inverter) near the power module regulatory
label.
WARNING!
NRS 097-2-1:2017 (South Africa)
It is not intended to connect this Inverter to a network with an higher
Network Impedance.
Reference Impedance
Fault Level
0.156
1475
Total [ Ω ]
I_SC [ A ]
3.9
1018
X/R ratio
S_SC [kVA] (three phase)
5.7 Opening the wiring box cover
• Use the key tool (provided with the installation kit contained in
the wiring box package) to open the three cover quarter cam
locks
(05)
following the proper rotation as shown in the related
silkscreens on the wiring box cover
(07)
.
NOTE –
D
Only for -S2, -SX2, SY2 versions: Set the wiring
box AC disconnect switch
(09)
to OFF position; otherwise it
will not be possible to open the wiring box cover
(07)
.
• Open the wiring box cover
(07)
and use the cover support
brackets
(14)
to lock the cover
(07)
in open position.
ATTENTION –
A
Pay attention to properly secure the cover
support brackets
(14)
in order to avoid falling of the cover!
5.8 Routing the cable to the inverter
The cable routing have to be done in order to avoid water dripping
to the:
• AC panel cable glands
(11)
(56)
• DC input quick fit connectors
(16)
• DC input cable glands
(18)
• Signal cable glands
(12)
.
Expecially when coming from the top, the cables must be routed
in order to create a loop: in this way the water that flows on the
cables will be drained.
The AC and DC conductors must be anchored or supported in
order to prevent loading and mechanical stress on the cable
glands and quick fit connectors causing potential damage on the
AC and the DC plates.
The pictures below are showing some example of incorrect and
proper cable routing.
OK
OK
OK
NO
20-30cm
Min. of
straight
cable
20-30cm
Min. of
straight
cable
Insert strain
relief here
Support the
cables (e.g. with
a cable tray)
20-30cm
Min. of
straight
cable
20-30cm
Min. of
straight
cable
Insert strain
relief here
Support the
cables (e.g. with
a cable tray)
20-30cm
Min. of
straight
cable
20-30cm
Min. of
straight
cable
Insert strain
relief here
Support the
cables (e.g. with
a cable tray)
OK
OK
OK
NO
ATTENTION –
A
In case of the single core AC cable gland
(62)
was accidentally removed during the cable routing
phase, it will needed to assure the correct tightness of the
lock nut of the cable gland to the inverter chassis with a
tightening torque of 8.0 Nm (for each cable gland).
