Operating instructions

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4.9.3 Emergency message, fault switch-off

As soon as a fault switch-off occurs in a slave frequency inverter, the emergency tele-

ram is transmitted. The emer

ency tele

ram marks the node ID for the identification

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 acknowled

ment, another emer

ency tele

ram is transmitted, with the

data content (Byte 0 ...7) being set to "0" this time. This identifies the subscriber's

repeated readiness for operation. Any further faults are transmitted in a new emer-

gency 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".