Installation Manual
35
A
B
C
D
E
F
Copper
bus bar
Cu-Al transition lug
Bolt
Spring washer
Flat
washer
Nut
Incorrect cable connection sequence may cause fires. Connect the parts in
correct order.
Ensure connection firmness. Poor connection or oxidation of the contact
surface may cause overheating and fires.
Select screws of appropriate length. The screws should just slightly protrude
from the mounting holes. Excessively long screws may impair the insulation
performance of the device, or even cause a short circuit.
Inspect the connections between the copper lug and the copper bus bar after
installation. If any heat-shrinking tubing is caught between the two components,
remove them immediately. Otherwise, poor contact or even device damage can
be caused.
Step 7.
Connect the AC output "L2" cable to the "L2" of the grid, i.e. phase B(V), and connect the
AC output "L3" cable to the "L3" of the grid, i.e. phase C (W) following the procedure in step 6.
Heat-shrinking tubing of yellow, green and red is applied to L1, L2 and L3
cables respectively to distinguish them from each other.
Step 8.
Ensure that the connection is secure.
Two cable connection holes of
Φ
8 are reserved on each of the there-phase
copper bars. If the inverter is equipped with a control transformer whose
capacity is less than 20kVA, the transformer can be supplied with power from
the AC copper bars.
7.10
Grounding Connection
The grounding cable must be well grounded! Otherwise,
Lethal electrical shock can be caused when a fault occurs!
The device may be damaged by lightning!
The device may operate abnormally!
