Cleco DGD 946823D7 handleiding
Handleiding
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30
P1713E-EN
2013-12
EN
The transmission from the output shaft to the stationary transducer electronics is made telemetrically, that
is, without slip rings. The transmission system comprises an HF antenna transmitter. It transmits the energy
to the rotor electronics using an HF carrier signal. At the same time the measured torque values are trans-
ferred to the stator electronics using frequency modulation.
The measured values of the torques are transferred from the transducer to the measuring electronics using
an increased analogue voltage (0...±5 V) .
The computer-controlled calibration is carried out via the RS422 interface without manual calibration work
such as solder resistors, calibration of potentiometers, etc. Calibration is carried out at Apex Tool Group.
The transducer circuit comprises a processor. The transducer is in the operating mode "measure" after
switching on the operating voltage.
The integrated memory chip EEPROM (capacity of 4 kByte) stores the transducer,
calibration, identification and operating data.
6.4.1 Torque Measurement
The torque is measured by a DMS full-bridge strain-gage circuit installed on the rotating output shaft and is
then telemetrically (i.e. without slip sings) transferred to the stator electronics.
Calibration takes places in the rotor unit by means of a switched shunt resistor parallel to a strain gage mea-
suring bridge section.
The calibration signal has the following time behaviour:
Input pulse duration (pin K) Output signal delay (pin C)
0 ... 1.5 ms No output signal
1.5 ms ... random Max. rise delay < 3 ms
Max. drop delay < 16 ms
Calibration
input
Output
voltage
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Productinformatie
| Merk | Cleco |
| Model | DGD 946823D7 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5397 MB |
