92
Remedy If the status code is displayed all the time: notify a Fronius-
trained service engineer
486
- External NO contact is open
- Optional measuring and monitoring relay has tripped
Behaviour The inverter is not feeding any energy into the grid.
Remedy Close external NO contact;
check measuring and monitoring relay
If this status code keeps recurring, contact your system engi-
neer
487
Air inlet temperature sensor is faulty
Behaviour The inverter is not feeding any energy into the grid.
Remedy Replace air inlet temperature sensor - notify a Fronius-trained
service engineer
488
AC measurement device is faulty
Behaviour The inverter is not feeding any energy into the grid.
Remedy notify a Fronius-trained service engineer
490, 491
Internal communication error
Behaviour The inverter is not feeding any energy into the grid.
Remedy notify a Fronius-trained service engineer
492
DC main switch is switched off
Behaviour The inverter is not feeding any energy into the grid.
Remedy Switch on DC main switch
493
DC relay is faulty
Behaviour The inverter is not feeding any energy into the grid.
Remedy notify a Fronius-trained service engineer
494
Grounding fault on the control board
Behaviour The inverter is not feeding any energy into the grid.
Remedy notify a Fronius-trained service engineer
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