EM-RES-03 10/0726
5.9.3 Emergency message, fault switch-off
As soon as a fault switch-off occurs in a slave frequency inverter, the emergency
telegram is transmitted. The emergency telegram marks the node ID for the identifi-
cation of the failed node via its identifier and the existing fault message via its data
contents (8 bytes).
The emergency telegram has the identifier 128 + node ID.
After a fault acknowledgment, another emergency telegram is transmitted, with the
data content (Byte 0 ...7) being set to "0" this time. This identifies the subscriber's
repeated readiness for operation. If a further fault occurs subsequently, it is transmit-
ted in a new emergency telegram.
The acknowledgment sequence is based on the definitions according to CANopen.
Data contents of the emergency telegram:
Emergency telegram
Byte Value Meaning
0 0x00 low-byte Error-Code
1 0x10 high-byte Error-Code
2 0x80 Error-Register
3 0x00 -
4 0x00 -
5 0x00 -
6 0xnn internal Error-Code, low-byte
7 0xmm internal Error-Code, high-byte
Bytes 0, 1 and 2 are firmly defined and compatible with CANopen.
Bytes 6/7 contain the product specific VECTRON error code.
Error-Code = 0x1000 = general error
Error-Register = 0x80 = manufacturer-specific error
The explanation and description of the product-specific VECTRON error code can be
found in the annex "Error messages".
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