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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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