10
Control Word Timeout
Danfoss · VLT Micro Drive FC 51
What does 10 mean?
This fault indicates that the drive has not received a valid control word via serial communication (e.g., Modbus RTU) within the configured timeout period. This typically means a break in communication, preventing the drive from receiving commands and potentially stopping the motor.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Increase the control word timeout parameter in the drive to allow for slower communication response if necessary.
- 4
Ensure correct addressing of the drive on the communication bus and no duplicate addresses.
- 5
Check for line termination resistors at both ends of the communication bus.
Source: Danfoss VLT Micro Drive FC 51
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