HYD 3K~6K-EP
User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
- 35 -
4.7.3 Link Port 0&1-Cascade communication interface
Fig.4-17 Link Port
①
②
③
When using the parallel system, the inverter settings and notes please refer to this
manual<6.3.2 Advanced setting
→
6.Parallel setting>.
Note (AC LOAD is also parallel for parallel machines):
1. The first and last inverters need to be connected with 8Pin connection
terminals.
2. The cable length of the AC LOAD terminal connected from the LOAD terminal
to each machine shall be consistent with the specification of the cable length, so as
to ensure that the loop impedance is consistent and the current of the LOAD current
diverted to each machine is nearly equal.
3. When the total power of AC Load is greater than 110% of the rated power of
the machine
（
For example, one inverter AC LOAD has a maximum allowable
power of 5.5kVA and six parallel machines AC LOAD has a maximum allowable
power of 33kVA
）
, the Load should not be connected to AC Load and should be
connected to AC Grid.
4. When inverters in parallel, All AC gird should be Shared a total air switch; All
AC LOAD should be Shared another total air switch.
Fig.4-18 parallel system
