Fronius Symo 3.0-3-S Serviceanleitung Seite 90

Code Description
463 AC pole reserved
472 defective grounding fuse
474 RCMU sensor error
475 Isolation failure detected
476 Internal power supply miss-
ing
480 Power stage set software
incompatible to display soft-
ware
481 Recerbo has old software
version
482 Inverter switched off during
commissioning
483 Adjusted fix voltage DC2
beyond the accessible MPP
range
484 - 485 Data transfer error
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).
90
Behaviour
1. AC connector between pow-
er stage and filter board
mounted in wrong direction (L1
and L2 exchanged)
1. Defective grounding fuse
2. Wrong settings in service
menu basic
1. Quick radiation changes
2. Sensor defect
1. Wrong setting
2. PV generator grounding er-
ror
3. Measuring circuit in power
stage set defective
1. Grid voltage too low
2. Grid test time is too low
3. Defective internal power
supply
4. Defective internal power
supply
1. Old power stage set soft-
ware
2. Old software
3. Incompatible hardware com-
binations
1. Old Recerbo software
2. Old software
3. Incompatible hardware com-
binations
1. Startup procedere not suc-
cessful
1. Fix voltage was adjusted too
high or too low
1. Communication problem
caused by temporary environ-
mental disturbances (grid /
EMC, ...)
2. Ribbon cable between filter
board and power stage set
3. Defective AC guard on filter
board
4. Defective AC guard on pow-
er stage set
Remedy
1.Check wiring
1. Change grounding fuse
2. Set DC mode to ‚floating'
1. Automatically corrected
2. Change filter board
1. Check ISO / GFDI setting
2. Check PV generator
3. Change DC board. After-
wards if necessary AC board
1. Check wiring
2. Grid failure
3. Change AC board
4. Change filter board
1. Software update
2. Reload setup
3. Check hardware compo-
nents
1. Software update
2. Reload setup
3. Check hardware compo-
nents
1. Restart inverter
1. Check settings
1. Automatically corrected
2. Change ribbon cable
3. Change filter board
4. Change AC board