Swash Plate Angle Sensor for EDC Controls
The angle sensor detects the swash plate position with an accuracy dependent upon the calibration
effort done for the application and direction of rotation from the neutral position. At minimum the sensor
can be used for forward, neutral and reverse (FNR) detection.
The sensor works on the hall-effect technology. The implemented technology is based on a
measurement of the magnetic field direction in parallel to the chip surface. This field direction is
converted to a voltage signal at the output.
Enhanced calibration of the non-linear behavior leads to more exact calculation of the pump swash plate
angle.
The 4-pin DEUTSCH connector is part of the sensor housing.
The swash plate angle sensor is available for all EDC controls for 12 V and 24 V.
Swash plate angle vs. output of supply voltage
-18° -13° -8°
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
Swashplate angle
Sensor output, % of supply voltage
-3° 0° 2° 7° 12° 17°
Strong magnetic fields in the proximity of the sensor can influence the sensor signal and must be
avoided.
Contact your Danfoss representative in case the angle sensor will be used for safety functions.
Swash Plate Angle Sensor Parameters (EDC)
Parameter Minimum Typical Maximum
Supply voltage range 4.5 V
DC
5 V
DC
5.5 V
DC
Supply protection – – 18 V
DC
Pump neutral output (% of supply voltage) – 50% –
Working range (swash plate angle) –18° – 18°
Required supply current – – 30 mA
Output current signal – 9 mA 11 mA
Working temperature –40°C 80°C 115°C
Protection Class
IP rating IEC 60 529 IP 67
IP rating DIN 40050, part 9 IP 69K with mating connector
EMC Immunity (ISO 11452-2) 100 V/m
Service Manual
MP1
Operation
18 |
©
Danfoss | April 2019 AX00000244en-000201
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