Troubleshooting steps
high
SINUMERIK 840D sl
205000 – Power unit alarm
Power unit alarm detected
Details
alarm
Error typePower unit
MeaningPower unit fault voltage fault
Typical causesCheck power unit verify voltage check connections
Solutionshigh
Catalog references
System Information
SINUMERIK 840D sl205000
Utilities
Troubleshooting Steps
Other alarms
Other SINUMERIK 840D sl Alarms
22050 – Channel not ready
NC channel failed to initialize or is in error state
22051 – Channel initialization error
Channel failed to initialize during startup
22052 – Channel mode error
Channel mode conflict or invalid mode
25000 – Emergency stop active
Emergency stop button pressed or safety circuit activated
25050 – Axis hardware fault
Axis drive or motor detected a hardware fault condition
FAQ
Common questions
What is power unit?
Power unit supplies power to drives and motors.
Community
Discussion & Experiences
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