58 EM-ABS-01 for ACU 03/12
7.9.4 Emergency-Message, fault shutdown
As soon as a fault shutdown 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-dependent error
The explanation and description of the product-specific VECTRON error code can be
found in the annex "Error messages".
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