IKA SMRA + MRA, Руководство пользователя

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SMRA - SSI and BiSS
“0”: an error is active:
•
position calculation error, invalid position value; the sensing
electronics is not able to read the ring; this problem may be
caused, for instance, by an excessive distance between the
sensor and the ring, by a wrong/reversed assembly of the
elements, by a damage to the magnetic surface of the ring;
see the section “3.3.2 Mounting the sensor“ on page 12;
•
the power supply is not as required, please refer to the order
code;
•
EEPROM error.
NOTE
The operating or fault status of the device is shown visually also by the LED
installed in the side of the sensor, refer to the section “7 - Diagnostic LED” on
page 33.
For any information on errors and their solution please refer to the sections “8 -
Error and fault diagnostics” on page 34 and “10 - Troubleshooting” on page 36.
Warning (nW)
(1 bit)
The warning bit nW is intended to communicate the normal status of the Slave
or the presence of a fault condition that does not prevent the unit from
running.
“1”:
correct status (the sensor is working properly, there are no active
warnings)
“0”: a warning is active:
•
distance error: the specified mounting tolerances between the
sensor and the ring are not met, see the section “3.3.2
Mounting the sensor“ on page 12;
•
frequency error: the rotation speed of the ring is greater than
the maximum allowed one. For example: for MRA/130-64N
the maximum rotation speed is 7,000 rpm.
When a warning condition occurs, the position information is
good, however the system precision may be worse than in a
normal condition. For such reason it is necessary to comply
with the mounting tolerances and/or to drop the rotation
speed of the ring. The LED does not light up.
MAN SMRA SSI_BiSS E 1.4.odt 6 - BiSS C-mode interface 24 of 40