Vacon optea - Page 87

Modbus TCP / Modbus UDP vacon • 87
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7
Table 44. Fault history
7.3.2.5.10. FAULT HISTORY WITH 16-BIT ERROR CODES
The fault history can be viewed by reading from address 40511 onward. The faults are listed in a
chronological order so that the latest fault is mentioned first and the oldest last. These addresses
contain the fault code and the subcode for the fault. Reading can be started from any address. (In
VACON
®
20, VACON
®
20 X and VACON
®
20 CP it is possible to read nine faults).
NOTE! Reading the fault history items is slow. Reading all 30 items at once might take up to three
seconds depending on drive type and firmware versions..
7.3.2.5.11. RESET FAULT HISTORY
Drive fault history can be reset by writing "1" to address 40400. Value in this address can be read
but it is always zero.
Notice that you cannot reset fault history if there is an active fault.
7.3.2.5.12. RESET FAULT WITH TIME STAMPS
The fault history with timestamps can be viewed by reading from address 40601 onward. The faults
are listed in a chronological order so that the latest fault is mentioned first and the oldest last.
These addresses contain fault code, subcode and timestamp for the fault. Reading can be started
from any address. (In VACON
®
20, VACON
®
20 X and VACON
®
20 CP it is possible to read nine faults
In VACON
®
NX family AC drives it is possible to read 30 faults).
Holding register
address
Input register
address
Purpose
40401 401 Upper byte is a fault code, lower byte is a sub code
40402 402
40403 403
... ...
40429 429
Table 45. Fault history with 16-bit error codes
Holding register
address
Purpose Description
40511 Fault code 1 16-bit fault code in index 1.
40512 Sub code 1 16-bit sub code for the fault in index 1.
40513 Fault code 2 16-bit fault code in index 2.
40514 Sub code 2 16-bit sub code for the fault in index 2.
... ...
40567 Fault code 29
40568 Sub code 29