85
EN-US
438
Problem while transmitting the State code
Cause: One-time occurrence
Remedy: Remedied automatically
Cause: Permanent occurrence
Remedy: Inverter needs software update
439
DC LOW; POWER LOW (only in Balance mode)
Cause: DC input voltage is too low for feed-in mode
Remedy: Check modules
Cause: Measurement error in power stage set
Remedy: Check the STATE PS menu and replace affected power stage set
442
No phase master could be determined for AC phase (only in balance mode)
Cause: Temporary communication error
Remedy: Remedied automatically
Cause: Faulty connection between the IG BRAIN and power stage sets
Remedy: Check ribbon cable
Cause: Poor hybrid plug connection
Remedy: Check connection between power stage set and inverter
443
DC/DC energy transfer faulty
Cause: Error while connecting a power stage set
Remedy: Remedied automatically
Cause: Power stage set defect
Remedy: Replace power stage set
Cause: Defective or disconnected transformer leads
Remedy: Check transformer leads
445
Wrong power stage set configuration
Cause: Communication error between the IG BRAIN and power stage set
Remedy: Check ribbon cable
Cause: Defect in power stage set
Remedy: Replace affected power stage set
Cause: Permanent error - Software problem
Remedy: Update software
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