Fronius Inverter FAN RPM


#1

Hi,

I have a Fronius Symo 5.0-3-M inverter [ 3.12.2-2 ]. I would like to extract and upload the ROTATION_SPEED_FAN data from it.

Page 10 of Fronius Solar API V1 in section 3.1.3 shows that this information can be extracted from 3 phase inverter, which mine is. Yet when I run the query it only returns the Voltage and Current data for L1, L2 and L3.

Is there anyone out there with a 3 phase Fronius inverter who can see this data using the provide URL? Don’t forget to substitute the IP address for fronius if required.

http://fronius///solar_api/v1/GetInverterRealtimeData.cgi?Scope=Device&DeviceId=1&DataCollection=3PInverterData

My plan was to generate an alert if the speed of any of the fans falls below some minimum - to be determined.

Thanks,


#2

This is what I get:

{
"Head" : {
	"RequestArguments" : {
		"DataCollection" : "3PInverterData",
		"DeviceClass" : "Inverter",
		"DeviceId" : "1",
		"Scope" : "Device"
	},
	"Status" : {
		"Code" : 0,
		"Reason" : "",
		"UserMessage" : ""
	},
	"Timestamp" : "2019-03-07T00:31:55+11:00"
},
"Body" : {
	"Data" : {}
}

}


#3

Same with mine. But its a single-phase inverter, not a three-phase inverter.


#4

The complete output from my inverter is shown below. I sent an email to Fronius asking for some clarity on this particular API call.

{
“Body” : {
“Data” : {
“IAC_L1” : {
“Unit” : “A”,
“Value” : 2.5800000000000001
},
“IAC_L2” : {
“Unit” : “A”,
“Value” : 2.5699999999999998
},
“IAC_L3” : {
“Unit” : “A”,
“Value” : 2.5299999999999998
},
“UAC_L1” : {
“Unit” : “V”,
“Value” : 244.80000000000001
},
“UAC_L2” : {
“Unit” : “V”,
“Value” : 241.19999999999999
},
“UAC_L3” : {
“Unit” : “V”,
“Value” : 246.40000000000001
}
}
},
“Head” : {
“RequestArguments” : {
“DataCollection” : “3PInverterData”,
“DeviceClass” : “Inverter”,
“DeviceId” : “1”,
“Scope” : “Device”
},
“Status” : {
“Code” : 0,
“Reason” : “”,
“UserMessage” : “”
},
“Timestamp” : “2019-03-08T10:37:04+08:00”
}
}


#5

All,

I contacted Fronius and asked them why I could not retrieve the inverter fan speed via the API as described in their documentation.

They have responded thus “the registers for the fan speed only give values for Fronius central inverters such as Fronius CL inverter but not the SnapInverter series such as Primo, Symo or Galvo inverter series. We have advised them to remove the instructions in the manual for the inverter-series so that it’s easier to understand for users.”

I have a Symo so I’m out of luck.