User's Manual

Table Of Contents
T12
36
A197910.0 enHBM
8 LED status display
The LED in the stator housing (next to device plug 4) has three display
modes: standard (measuring mode), rotor clearance setting mode and setting
mode for the optical rotational speed system.
8.1 Measuring mode operation
LED color Significance
Flashing green (fast) SDO transfer taking place
Flashing green CAN device has operational status
Green For PROFIBUS option only: Data exchange taking place
1)
Flashing yellow (slow) Rotor communication taking place
Yellow For PROFIBUS option only: Searching for the baud rate, or
parameterization or configuration taking place, or no data exchange
taking place
1)
Flashing red Overflow for measured value (amplifier input, measured value ovfl.),
frequency or analog output
Red Error situation
1)
When PROFIBUS option exists: Messages to the PROFIBUS take precedence over messages to the CAN Bus.
8.2 Rotor clearance setting mode operation
LED color Significance
Green Rotor-stator alignment is OK
Yellow Rotor-stator alignment is borderline
Red Rotor-stator alignment is not OK
8.3 Rotational speed measuring system setting mode
operation
LED color Significance
Green The position of the two sensors is OK, the signals (F1/F2) are 90 or
270 phase-shifted and can be correctly evaluated
Yellow The phase relation of the two sensor signals is not optimum, there is a
variation of 10 to 30
Red The phase relation of the two sensor signals is not correct, there is a
variation of more than 30
For more information on setting mode, look in the T12 Assistant online Help.