.13.
.12.
6.Insert AC output wires according to polarities indicated on terminal block and tighten
terminal screws with the torque of 1.0-1.2Nm. The connection sequence should be L-N.
7.Make sure the wires are securely connected.
WARNING:
Be sure to connect AC wires with correct polarity. If L and N wires are
connected reversely, it may cause utility short-circuited when these
inverter are working in the parallel operation.
Figure 3.9 AC Output terminals
5.T
he
Dry
Contact
is
used
to
be
one
AC
source
of
Generator
.
Description
Signal Name
Pin
NC
R
ELAY1
_
NC
1
COM
R
ELAY1
_
COM
2
NO
R
ELAY1
_
NO
3
Figure 3.8 Dry
Contact
PE/L/N
3.6 Grounding
To effectively protect the inverter, a grounding methods must be performed.
Connect the external grounding terminal.
To connect the grounding terminal on the heat sink, please follow the steps below:
3. Connect the grounding cable to the grounding point on the heat sink, and tighten the
grounding screw, Torque is 3Nm.
1. Remove insulation sleeve 10 mm for positive and negative conductors.
2. Insert the wire into the sleeve and use a suitable crimping tool for crimping.
Figure 3.10
10mm
Crimping plier
Crimping sleeve
(
In the accessory bag
)
Grounding screw
For improving anti-corrosion performance, after ground cable installed,
apply silicone or paint is preferred to protect.
Important:
Figure 3.11 Grouding
3. Installation
3. Installation
NOTE:
MasterPower
recommends to install a 230V/40A single-phase dual-channel
normally open AC contactor on the external of the grid input , when grid
is avaliable, the contractor will stay 'on' , when the grid is off, the contractor
will automatically disconnect itself from the grid.
Recomended Type: Chint NCH8 series 40A2P
