14
Preparation before wiring
：
Connect the protective ground wire (PE)
Connect
the
inverter
to
the
grounding
bar
through
the
protective
earth (PE)
to
achieve
grounding
protection.
Ø
Ø
Good grounding is good for resisting surge voltage surges and
improving EMI performance. Therefore, before connecting AC, DC,
and communication cables, you need to ground the cable first.
For a stand-alone system, simply ground the PE cable; for a
multi-machine system, connect all the PE cables of the inverter to
the same grounding copper bar to ensure equipotential bonding.
fig6
.
1
Grounding diagram
Ø
Measuring the voltage and frequency of the public grid (voltage: AC 230V;
frequency: 50Hz)
The recommended specifications for the AC output switch are as follows:
Inverter model
Switch specification
Inverter model
Switch specification
MID 6KTL3-XL
25A/127V
MID 8KTL3-XL
32A/127V
MID 10KTL3-XL
40A/127V
MID 11KTL3-XL
40A/127V
MID 12KTL3-XL
50A/127V
MID 10KTL3-X
32A/230V
MID 12KTL3-X
40A/230V
MID 15KTL3-X
40A/230V
MID 17KTL3-X
40A/230V
MID 20KTL3-X
40A/230V
MID 22KTL3-X
50A/230V
MID 25KTL3-X
50A/230V
AC connection steps:
1. The five wires (A, B, C, N, and PE wires) connected to the grid are passed through an
AC shield and then coiled to the O / U terminal.
fig6.2
AC output line crimp terminal
13
1. Lock the AC cable to the corresponding AC terminal.
fig6.3
AC terminal wiring
2. Lock the shield on the inverter frame and finally tighten the shield hole.
fig6.4 AC lock waterproof cover
Recommended line length:
Wire
cross
section
Maximum wire length
MID 6-8K
TL3-XL
MID 10-11K
TL3-XL
MID 12K
TL3-XL
MID 10-15K
TL3-X
MID 17-20K
TL3-X
MID 22-25K
TL3-X
10mm²
50m
40m
30m
50m
40m
30m
16 mm²
60m
50m
35m
60m
50m
35m
