ABB ACH550-01-04A1-4+B055 BACnet протокол онлайн [18/32] 453944

ABB ACH550-01-04A1-4+B055 BACnet протокол онлайн [18/32] 453944
18 ACH550 BACnet User’s Manual
Diagnostics
Faults 32...33 - EFB2...EFB3
Two EFB fault codes (fault codes 32...33) listed for the drive in the “Diagnostics”
section of the ACH550 User’s Manual are not used.
Incorrect Baud Rate
If the baud rate setting does not match the network’s rate, the value of 5308, EFB
UART ERRORS, increases and the value of 5306, EFB OK MESSAGES, remains fixed.
Intermittent Off-line Occurrences
The problems described above are the most common problems encountered with
ACH550 serial communication. Intermittent problems might also be caused by:
Marginally loose connections.
Wear on wires caused by equipment vibrations.
Insufficient grounding and shielding on both the devices and on the
communication cables.
Missing network terminations (stations at both ends of a network require
termination resistors).

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