Fronius CL - Page 80

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305
Not possible to feed energy into the public grid, although the grid is OK
Cause: Loose contact on grid power lines
Remedy: Connect grid power lines
Cause: Disconnected choke
Remedy: Connect choke
Cause: Error in grid relay
Remedy: Replace power stage set
Cause: Disconnected fan cable
Remedy: Connect fan cable
Cause: Defective controller in power stage set
Remedy: Replace power stage set
306 *
POWER LOW
Cause: Intermediate circuit voltage has dropped below permissible threshold value
for feed-in mode
Remedy: Check solar modules
Remedy: Replace power stage set
307 *
DC LOW
Cause: DC input voltage is too low for feed-in mode
Remedy: Check solar modules
Remedy: Replace power stage set
308
The intermediate circuit voltage exceeds max. permissible limit value
Cause: Strong disruption on the public grid
Remedy: Amplify gird lead
Cause: Permanent error from a power stage set
Remedy: Check the STATE PS menu and replace affected power stage set
309
POWER LOW / Slave (only in Balance mode)
Cause: Intermediate circuit voltage has dropped below permissible threshold value
for feed-in mode
Remedy: Check solar modules
Remedy: Check the STATE PS menu and replace affected power stage set