I have a new installation with a Multiplus 48/3000/35-16 (brand new older model) and a CCGX. I updated everything to the latest production versions (as at 8 March 2025 - not Beta versions), but when I installed it (on a remote off-grid site in Hwange Game Reserve without internet), I had to unplug the VE.bus cable to get the Multiplus to start. Once started, it seemed to work fine when I plugged the cable back in.
Multiplus 48/3000/35-16 version 555
CCGX version 3.54
BlueSolar 150/45 version 1.64
8 x 350W ARTsolar solar panels (4 strings of 2) 2800Wp
BlueNova B52V-154-8k (Pre-NG but refurbished to NG) 154Ah version 5.5
Generator was not connected
The settings I used:
Battery monitor enabled at 95%
Other grid code with wide input frequency and voltage ranges
Shut down on SOC enabled (10%/20%), no power assist, AES not enabled
Lithium battery
No VS
No assistants
I need a solution. I cannot expect my customer to disconnect cables to switch the system on.
The important thing to check is the remote multi software switch on the GX is not set to “off”
If that is indeed set to ON, then there is a different issue.
If this ccgx was used before, you may be advised to reset it to default in case there are conflicting settings enabled.
For the most part this shouldn’t happen and isn’t a known problem on production versions.
The GX also provides comms from the battery, so if it is seeing something that conflicts with the rest of the system then it could cause this issue.
Mixing old gear is always a challenge, but this does sound possibly like a configuration problem.
Do you recall what the SOC/Voltage of the battery was at the time, or if it was reporting low/no DCL etc?
The config is fairly vanilla, nothing obvious.
The battery was at 97% when I installed the system. There were no alarms.
I ran the system overnight before taking it to site and was able to record this on VRM. The battery started at 99% (53.51V) and ended at 97% (53.13V).
I would start with the CCGX downgrade to 3.42 or 3.40. the older units struggle for space and other resources on the newer FW.
Maybe downgrade the inverter to 449 (available on professional)
LOM is irrelevant to the system starting or not. There is no ESS either which would rely on it.
It could affect a running genset from being accepted, but since it was disconnected, there’s no assistant, its irrelevant in this case and unrelated to why an inverter with charged battery would not start.