Danfoss H1 - Swashplate Angle Vs Output Voltage Graph with Calculation Formula; Interface with ECU

Swashplate angle vs output voltage graph with calculation formula
Swashplate angle vs output voltage
-25° -20° -15° -10° -5° 0° 5° 10° 15° 20° 25°
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
Swashplate angle
Output voltage (V)
P005 704E
Signal 1 (nominal)
Signal 2 (redundant)
Swashplate angle vs. output voltage (calibrated at 50 °C)
The displacement can be calculated by:
[cc]
V =
tan α • V
tan 18°
The corresponding flow is:
[l/min]
Q =
V • n • h
vol
1000
The volumetric losses are depending on:
•
Pump size (max displacement)
•
Actual displacement
•
Speed (rpm)
•
Delta pressure
•
Viscosity / temperature
Interface with ECU
Interface with ECU schematic
ECU
V+
Sig1
Sig2
Gnd
E3
340R 340R
Out 2
Out 1
VCC
VCC
Gnd
Gnd
340R340R
0.1uF
5.6 nF
5.6 nF
E2
E1
Minimum recommended load resistance is 100 kΩ.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Control options
11062169 • Rev 0700 • November 2015 35