Page | 57
Hybrid Inverter | Installer Manual
If you need further help please refer to the Sunsynk website where you will find training videos
and Frequently Asked Questions www.sunsynk.com. Firmware prior installation is important to
be updated and all inverters in parallel or three phase system must be the same.
Some common questions that occur when paralleling inverters:
Q1: What is the sequence to install/connect/commission?
First of all, leave the main supplies off. Next, connect all communication cables, set up all LCDs
and then, last of all, turn on the main supplies.
Q2: What are the indications that the communication and the system are ok or not?
Parallel errors will be shown as fault F46 on the display.
Q3: What are the consequences of not setting one inverter in a parallel mode?
It can damage the inverter.
Q4: What are the consequences of having more than one Master Inverter or having no
inverter set as ‘Master’?
It can damage the inverter. There are cases in which it is possible to have more than one mas-
ter. For example, as aforementioned, six inverters paralleled in a three phase utility grid (three
masters).
Q5: What are the consequences for setting A, B, or C phases wrong while in parallel
mode?
It can damage the inverter. Recommend checking the phase rotation with a meter before
switching on.
Q6: What are the consequences of factory resetting, power cycling, or firmware updating
one inverter in a parallel system?
It can damage the inverter. Inverters needs to be isolated from each other before factory reset
or firmware update.
Q7: What consequences for changing ALL/ANY settings while operating in parallel mode?
It can damage the inverter and fault F46 will be indicated on the display.
