Fronius 10.0-1 Serviceanleitung Seite 104

Code Description
456 Fault detected in islanding
monitoring
457 Grid relay does not trigger
458 RCMU self-test faulty
459 Faulty insulation measure-
ment
460 Reference voltage outside
of permissible limit
461 Faulty data memory
462 Error detected when moni-
toring DC deceleration
463 AC pole reserved
472 Fuse for solar module
ground faulty
474 RCMU sensor fault
475 Insulation fault detected
476 Internal power supply miss-
ing
480 Power module and display
software incompatible
104
Behavior
1. Occurs once
2. Software problem
3. Measurement error on filter
PC board
4. Measurement circuit for anti-
islanding faulty
1. Occurs once
2. Grid test time is too low
3. Grid relay sticks
1. RCMU measurement faulty
1. Occurs once
2. Insulation measurement
faulty
1. Occurs once
2. Measurement circuit on
power module defective
1. Faulty power module
1. Occurs once
2. Monitoring of DC decelera-
tion faulty
1. AC connection between
power module and filter PC
board established in incorrect
direction (L1 and L2 mixed up)
1. Faulty fuse for solar module
ground
2. Incorrect setting in basic ser-
vice menu
1. Quick irradiation change
2. Sensor faulty
1. Incorrect setting
2. Grounding fault PV genera-
tor
3. Measurement circuit on
power module defective
1. Grid voltage too low
2. Grid test time is too low
3. Missing internal power sup-
ply
4. Missing internal power sup-
ply
1. Old power module/display
software
2. Old software
3. Incompatible hardware com-
bination
Remedy
1. Restart inverter
2. Software update
2. Replace filter PC board
3. Replace AC PC board
1. Restart inverter
2. Change settings
3. Replace AC PC board
1. Replace filter PC board
1. Restart inverter
2. Replace DC PC board and
then, if necessary, AC PC
board
1. Restart inverter
2. Replace AC PC board
1. Replace DC PC board and
then, if necessary, AC PC
board
1. Restart inverter
2. Replace inverter
1. Check cabling
1. Replace fuse
2. Set DC mode to "floating"
1. Automatically corrected
2. Replace filter PC board
1. Check ISO/GFDI setting
2. Check PV generator
3. Replace DC PC board and
then, if necessary, AC PC
board
1. Check cabling
2. Grid failure
3. Replace AC PC board
4. Replace filter PC board
1. Software update
2. Reload setup
3. Check hardware compo-
nents