D
x
Telemetry System
Manual Vers. 2.7
63
/
92
Figure 34: tightening of the stator ring
Plug in the power cable of the ring stator and connect it to a 9 ...36 V DC power
source.
Please note:
The DC connector of the D
X
RCI is
not
designed to supply a ring stator
or stator head while the RCI AC power supply is connected!
Wait for a short time (approx. 30 seconds). Check whether the D
X
SCT is sufficiently
supplied with power. To do this, measure the voltage between the EX- and EX+
outputs (e.g. the power supply of the strain gauges). If the power supply of the D
X
SCT is sufficient, you measure a voltage of 4.096 V DC.
Please note:
The operating point, i.e. the optimum frequency of the alternating
electrical field at the stator ring, is automatically set and readjusted by the stator
electronics. The operating point of the system is dependent on a variety of factors,
mainly on the length of the primary coil. If the stator is put into operation for the first
time, the determination of the optimum frequency may take several minutes.
If you measure less than 4.096 V DC between EX- and EX+, check the effective
value
V
AC
of the alternating voltage between IP1 and IP2. If 0 V <
V
AC
< 0.6 V,
increase the power of the stator with the potentiometer at the stator housing (refer to
Figure 35).
Please proceed slowly
. The direction of rotation for a power decrease or
increase is depicted on the stator housing: Turn the potentiometer screw in the (+)
direction to increase the power of the stator. To decrease the power, turn the screw in
(-) direction.
