Fronius Symo Service Manual

106
Service class 5 - 6
Class 5 status codes do not generally prevent the feeding of energy into the grid, but can
restrict it. A status code is displayed until it is acknowledged by pressing a key (the inverter,
however, continues to operate normally in the background).
463 AC pole reserved 1. AC connector between pow-
er stage and filter board
mounted in wrong direction (L1
and L2 exchanged)
1.Check wiring
472 defective grounding fuse 1. Defective grounding fuse 1. Change grounding fuse
2. Wrong settings in service
menu basic
2. Set DC mode to ‚floating‘
474 RCMU sensor error 1. Quick radiation changes 1. Automatically corrected
2. Sensor defect 2. Change filter board
475 Isolation failure detected 1. Wrong setting 1. Check ISO / GFDI setting
2. PV generator grounding er-
ror
2. Check PV generator
3. Measuring circuit in power
stage set defective
3. Change DC board. After-
wards if necessary AC board
476 Internal power supply miss-
ing
1. Grid voltage too low 1. Check wiring
2. Grid test time is too low 2. Grid failure
3. Defective internal power
supply
3. Change AC board
4. Defective internal power
supply
4. Change filter board
480 Power stage set software
incompatible to display soft-
ware
1. Old power stage set soft-
ware
1. Software update
2. Old software 2. Reload setup
3. Incompatible hardware com-
binations
3. Check hardware compo-
nents
481 Recerbo has old software
version
1. Old Recerbo software 1. Software update
2. Old software 2. Reload setup
3. Incompatible hardware com-
binations
3. Check hardware compo-
nents
482 Inverter switched off during
commissioning
1. Startup procedere not suc-
cessful
1. Restart inverter
483 Adjusted fix voltage DC2
beyond the accessible MPP
range
1. Fix voltage was adjusted too
high or too low
1. Check settings
484 - 485 Data transfer error 1. Communication problem
caused by temporary environ-
mental disturbances (grid /
EMC, ...)
1. Automatically corrected
2. Ribbon cable between filter
board and power stage set
2. Change ribbon cable
3. Defective AC guard on filter
board
3. Change filter board
4. Defective AC guard on pow-
er stage set
4. Change AC board
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