ifm electronic JN2100 v.2.2.0 - Manual (Page 24)

Inclination sensor JN
24
The example shows a rotation of 30° about the Y axis of the coordinate system of
the workpiece.
Perpendicular angle
without teach
Teach mode Perpendicular angle
without teach
Teach mode
Longitudinal
angle value
Lateral
angle value
Longitudinal
angle value
Lateral angle
value
Longitudinal
angle value
Lateral angle
value
Longitudinal
angle value
Lateral angle
value
-13.2° -29.3° 0° 0° -45.5° -29.5° -30° 0°
9.5 Quadrant correction (SDO index 2040h)
Quadrant correction means an extension of the angle indication to the measuring
ranges
±
180° (corresponds to 2040h = 1) or 0...360° (corresponds to 2040h = 2).
The following conditions apply to the different angle calculations:
Perpendicular angle: longitudinal (x) and lateral (y) are corrected
Euler:
For the gimbal angles the roll angle is corrected.
Gimbal X: longitudinal x (pitch angle), lateral y (roll angle)
Gimbal Y: longitudinal x (roll angle), lateral y (pitch angle)
9.6 Heating (SDO index 2041h)
To ensure good temperature stability over the whole temperature range, the
measuring cell is regulated to a constant temperature using a PID controller. The
regulation of the heating is set by the factory and can be deactivated by writing the
value 0 to the parameter of the heating (SDO index 2041h).
This has the following effects:
> Reduction of temperature stability
> Current consumption decreases when operating
> Accuracies deviate from the indications in the data sheet
9.7 MEMS self-test (SDO index 4004h)
To check the function of the measurement axes a self-test of the measuring cell
can be carried out. The MEMS self-test (SDO index 4004/01h) has to be activated
by writing the value 1. The self-test takes about 2 s; when the self-test has ended,
the flag (SDO index 4004/01h) is reset to 0.
The test result is coded in a byte and can be read from the self-test register (SDO
index 4004/02h).
00000111: The 3 least significant bits code the internal X, Y, Z measurement axes
Bit 0: axis faulty / bit 1: axis functional