IKA SMRA + MRA, Руководство пользователя

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SMRA - SSI and BiSS
8 - Error and fault diagnostics
At power on or during operation the following errors may occur:

when switching on the system an alarm is triggered through both the
diagnostic LED and the dedicated bit (SSI interface: refer to the “5.4 Error
bit” section on page 20; BiSS interface: refer to the “Error (nE)” section on
page 23): the ring is not read correctly; it may be due to one of the
following reasons: the ring and/or the sensor are not mounted properly (see
the “3 - Mounting instructions” section on page 11); the magnetic surface
of the ring is damaged somewhere; the sensor is not working properly; this
may cause invalid data to be transmitted; as soon as the problem is solved
the LED switches off and the error bit switches to high logic level;

during operation an alarm is triggered through both the diagnostic LED and
the dedicated bit (SSI interface: refer to the “5.4 Error bit” section on page
20; BiSS interface: refer to the “Error (nE)” section on page 23): as previously
stated, the ring is not read correctly; it may be due to one of the following
reasons: the ring and/or the sensor are not mounted properly (see the “3 -
Mounting instructions” section on page 11); the magnetic surface of the
ring is damaged somewhere; the sensor is not working properly;
furthermore, the alarm may be caused by a position calculation error so that
the resulting position value is invalid. The last valid position is “frozen” (kept
in memory) until the next valid position is detected on the ring.
NOTE
In the SSI interface, the device status is both shown visually through the
diagnostic LED (see the “7 - Diagnostic LED” section on page 33) and
transmitted via the error bit (see the “5.4 Error bit” section on page 20).
In the BiSS interface, the device status is both shown visually through the
diagnostic LED (see the “7 - Diagnostic LED” section on page 33) and
transmitted via the error bit (see the “Error (nE)” section on page 23). Refer also
to the “Warning (nW)” section on page 24.
For any further information refer also to the “10 - Troubleshooting” section on
page 36.
MAN SMRA SSI_BiSS E 1.4.odt 8 - Error and fault diagnostics 34 of 40