Growatt inverter grid tied stuck in stand by mode
- Thread starter frasere2
- Start date
I just got it online
my AC volts are always a bit high, right now 255.5v
on the inverter under Grid Code, there is a setting called syncronization Range , and the Voltage High setting was around 252v,
I changed the growatt setting to 257v and it came online
my AC volts are always a bit high, right now 255.5v
on the inverter under Grid Code, there is a setting called syncronization Range , and the Voltage High setting was around 252v,
I changed the growatt setting to 257v and it came online
There we go! Progress. You may need to watch that it doesn't exceed that because mine gains about 3v when it's exporting
Growatt documentation can hurt more than it helps sometimes
MajicDiver
Solar Enthusiast
Anything signature Solar says about these inverters should be ignored.
Another story, a little over 2 years ago they told me the dip switches at the upper left area of the wire box were used to set the modbus slave address for the inverter. I tried and it didn’t change. Talked to Growatt, they are used for firmware upgrades from a USB stick, to enable. Since then I’ve done that so I know the SS guy was simply making stuff up.
So your system is working as normal today?
Yes it is. Both inverters are on grid and producing. Only problem is the clouds...
I'm glad to hear that.
Hey everyone, first time poster with the exact same issue mentioned here. I have 2 Growatt MIN 10000 units, with 3 strings of 10 460w bifacial panels each. They are grid tied and were installed by electricians who work on solar almost exclusively. They confirmed voltages are all within spec, but the Growatt units both never come out of standby mode, and show all zeros in the app except for internal temperature, as shown in the attached screenshot. I’ve tried the grid code suggestions mentioned here, but no luck. Any idea why even AC info shows zeros when the units turn on fine, and show no faults? (Rapid shut down jumper is in place, if this is removed it can apparently cause similar behaviour)
Any and all help would be greatly appreciated!
Any and all help would be greatly appreciated!
Attachments
Trying the process of elimination- Is the grid breaker closed?
Breakers to the grid are both on (each inverter is on its own breaker). I should clarify, the power light on both inverters flashes 1 second green, then 3 seconds off. According to the manual it means it’s getting AC, but no DC. The units currently only power on when AC breakers are turned on. It’s not seeing any DC input, but I wanted to figure out why the AC side isn’t showing any values first.
Is the pv DC switch on the bottom of the inverter turned on?
MajicDiver
Solar Enthusiast
Is the DC disconnect on the inverter closed?
MajicDiver
Solar Enthusiast
Also, check for DC at the inverter terminals, please post a picture of the wire box with your VOM on one of the inputs
DC disconnect on both inverters is on. There’s another disconnect at each panel array, those are both on as well. Electricians confirmed they got around 500 volts at the inverters, per string.
Currently the panels are covered in snow so there might a lot less voltage, though there should still be some (I think?) as they’re bifacial panels.
I was going to get a clamp multimeter to be able to check voltage at the inverter inputs, I’m not able to check right now unfortunately. Putting a clamp around either the positive or negative line going into the inverter should show the voltage, right?
MajicDiver
Solar Enthusiast
Interesting, what version are you on now?
