Fronius Symo Service Manual

108
523 DC LOW Ch2 1. DC main switch open 1. Close DC main switch
2. PV generator not connected 2. Connect PV generator
3. DC voltage too low for feed-
ing in
3. Wait for more irradiance or
check modules
4. Reversal voltage of PV gen-
erator
4. Change polarity of PV gen-
erator
5. DC operating mode: fix volt-
age and wrong voltage
5. Check MPP settings / volt-
age
6. Measuring error on the pow-
er stage set
6. Change DC board. After-
wards if necessary AC board
558 Country setup not support-
ed by power stage set
1. Old software 1. Software update
2. Old software 2. Reload setup
3. Incompatible hardware com-
binations
3. Check hardware compo-
nents
559 Feature nor supported by
Recerbo
1. Old software 1. Software update
2. Old software 2. Reload setup
3. Incompatible hardware com-
binations
3. Check hardware compo-
nents
560 Power reduction because
of over frequency
1. Too high grid frequency 1. Automatically corrected
2. Grid disturbances 2. Software update
3. Wrong settings 3. Check settings
565 AFCI SD card failure 1. Writing data to SD card
failed
1. Format SD card
566 AFCI deactivated 1. No error, AFCI is deactivat-
ed
1. If AFCI has to be switched
on, use tool
567 GVDPR active 1. Too high grid voltage 1. Automatically corrected
2. Grid disturbances 2. Software update
3. Wrong settings 3. Check settings
568 Multifunction current inter-
face Warning
An external custom device per-
forms a signal state change
Check the external signal or
the input signal configuration
601 Internal communication
fault
1. Occurs once 1. Restart inverter
2. Occurs permanently 2. Change AC board
602 Auto test Italy failed 1. Auto test Italy was started
and not finished or failed
1. Reload setup
603 Temperature sensor in μC
defect (Ch3 AC Temp)
1. Defective temperature sen-
sor μC
1. Change power stack
2. Defective circuit on the pow-
er stage
2. Change AC board
604 Temperature sensor in DC
module 2 defect (Ch4 DC2)
1. Defective temperature sen-
sor in DC module 2
1. Change DC board
2. Defective circuit on the pow-
er stage
2. Change DC board
607 RCMU continous fault oc-
cured more than 4 times in
24 hours
1. Grounding problem 1. Automatically corrected after
24 hours
2. Check PV array
3. Check wiring
Code Description Behaviour Remedy

Fronius Symo Specifications

General

THD	< 3 %
Number of MPP Trackers	2
Protection Class	IP65
Frequency Range	50 / 60 Hz
Operating Temperature Range	-25°C to +60°C
Power Range	3.0 kW - 20.0 kW
AC Output Voltage	230 V
Communication	Ethernet
Warranty	5 years
Model	Symo