Sako SKI650 Series, Руководство пользователя

Страница: 23 / 47

SKI650 Series
- 22 -
WARNING
Before connect DC wiring
,
following the steps below to prevent hazardous electric shock
resulting in serious injury or device burning
.
• Make sure that the external DC disconnect switch is off
.
•To ensure that the polarity of the solar array cable must be properly connected to the
controller
'
s
R ,
T pole
,
otherwise possible damage the controller
.
•Make sure that AC power is disconnected
(
If AC power supply is wired as backup power
,
AC and DC power supply can not simultaneously put into the controller
,
otherwise it will
damage the controller
.)
3
.
2
.
3 Junction box connection
If there are a large number of solar modules
,
it is needed to use a junction box to
converge the bus to the solar array
.
The junction box need to install fuses
,
lightning
protection device and DC switch
.
The fuse and the DC switch can prevent the short
circuit protection
;
the lightning protection device can play the direct current side
the lightning protection function
.
The junction box must be sealed
,
and water can
not enter.
3
.
2
.
4 Ground Wiring
Ground terminal
(
GND
)
is labeled as this icon
.
Please refer to the instruction
to this icon
,
or other equivalent icon or sign by local electrical codes or
international standard
.
Correct grounding helps to prevent shock hazard if there is
a fault in the motor
.
3
.
2
.
5 Motor Wiring
Connect the cable with four wires from the Motor to the controller terminal block
to terminals U
,
V
,
W
,
and GND
(
See Figure 6
).
Check motor lead color to ensure
correct installation
. 。