Fronius Galvo 208-240 1.5-1 Service Manual page 81

Code Description
445 Information on country set-
up faulty
448 Neutral conductor error
451 Memory error for a micro-
controller
452 Communication between
filter and power module not
possible
453 Redundant grid monitoring
has detected faulty grid
voltage
454 Redundant grid monitoring
has detected faulty grid fre-
quency
456 Error detected in islanding
monitoring
457 Grid relay does not trigger
Behavior
1. Country setup information
faulty
2. Software old (e.g., after PC
board replacement)
3. Manual configuration in ser-
vice menu not possible
4. Recerbo faulty
1. No neutral conductor found
2. Incorrect setup
3. Bad contact: wall bracket <-
-> inverter
4. Filter PC board faulty
1. Grid problem
2. Faulty AC guard on filter PC
board
3. Faulty AC guard on power
module
1. Communication problem
caused by temporary environ-
mental faults (grid, EMC, etc.)
2. Check ribbon cable between
filter PC board and power mod-
ule
3. Filter PC board faulty
4. Power module faulty
1. Measurement error
2. Grid problem
3. Faulty AC guard on filter PC
board
4. Faulty AC guard on power
module
1. Measurement error
2. Grid problem
3. Faulty AC guard on filter PC
board
4. Faulty AC guard on power
module
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
Remedy
1. Update software and reload
country setup from setup menu
2. Update software and reload
country setup from setup menu
3. Check settings
4. Replace Recerbo
1. Check cabling
2. Check country setup
3. Check fixing screws in DAT-
COM area
4. Replace filter PC board
1. Automatically corrected
2. Replace filter PC board
3. Replace power module
1. Automatically corrected
2. Replace ribbon cable
3. Replace filter PC board
4. Replace power module
1. Software update
2. Automatically corrected
3. Replace filter PC board
4. Replace power module
1. Software update
2. Automatically corrected
3. Replace filter PC board
4. Replace power module
1. Restart inverter
2. Software update
2. Replace filter PC board
3. Replace power module
1. Restart inverter
2. Change settings
3. Replace power module
81