Fronius Symo Service Manual

105
EN
451 Flash of the guard defective 1. Grid problem 1. Automatically corrected
2. Defective AC guard on filter
board
2. Change filter board
3. Defective AC guard on pow-
er stage set
3. Change AC board
452 Communication between
filter & power stage set
faulty
1. Communication problem
caused by temporary environ-
mental disturbances (grid,
EMC, ...)
1. Automatically corrected
2. Ribbon cable between filter
board and power stage set de-
fective
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
453 Processor guard detected a
faulty grid voltage
1. Measuring error 1. Software update
2. Grid problem 2. Automatically corrected
3. Defective AC guard on filter
board
3. Change filter board
4. Defective AC guard on pow-
er stage set
4. Change AC board
454 Processor guard detected a
faulty grid frequency
1. Measuring error 1. Software update
2. Grid problem 2. Automatically corrected
3. Defective AC guard on filter
board
3. Change filter board
4. Defective AC guard on pow-
er stage set
4. Change AC board
456 Error in the Anti Islanding
monitoring detected
1. Occurs once 1. Restart inverter
2. Software problem 2. Software update
3. Measuring on filter board 3. Change filter board
4. Measuring circuit for Anti Is-
landing defective
4. Change AC board
457 Grid relais do not release 1. Occurs once 1. Restart inverter
2. Grid test time is too low 2. Change settings
3. Relay got stuck 3. Change AC board
458 RCMU selftest failed 1. RCMU measurement defect 1. Change filter board
459 Faulty isolation measure-
ment
1. Occurs once 1. Restart inverter
2. Isolation measuring defec-
tive
2. Change DC board. After-
wards if necessary AC board
460 Reference voltage outside
permitted limits
1. Occurs once 1. Restart inverter
2. Measuring circuit on power
stage set defective
2. Change AC board
461 Defective data memory 1. Defective power stage set 1. Change DC board. After-
wards if necessary AC board
462 Failure on the DC injection
monitoring detected
1. Occurs once 1. Restart inverter
2. DC injection monitoring de-
fective
2. Change inverter
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