Swashplate angle versus output voltage graph (calibrated at 50 °C), calculation formula
-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
O
utput v
oltage (
V
)
P005 704E
Signal 1 (nominal)
Signal 2 (redundant)
Swashplate angle vs. output voltage (calibrated at 50 °C)
The volumetric losses depend on:
•
Pump size (max displacement)
•
Actual displacement
•
Speed (rpm)
•
Delta pressure
•
Viscosity and temperature
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
Interface with ECU
Interface with ECU schematic
ECU
V+
Sig1
Sig2
Gnd
E3
340R
340R
Out 2
Out 1
VCC
VCC
Gnd
Gnd
340R
340R
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
36 |
©
Danfoss | May 2017
11062169 | BC00000058en-US0801