Danfoss H1 Series User Manual

Control ramp
From 100% to 20% displacement 14 bar [203 psi]
From 100% to 0% displacement 17.5 bar [254 psi]
Below are formulas to calculate start and end input command dependent on displacement:
Formulas to calculate start and end input command
Control type Input command (bar) % displacement All sizes (bar)
LH
Start input command from 100% p
start
± 0.5
from y% max. (1 - V
gy
/V
gmax
) x 17.5 + p
start
± 0.5
End input command at 0 % p
start
+ 17.5 ± 2.5
at x % min. (1 - V
gx
/V
gmax
) x 17.5 + p
start
± 2.5
Where:
V
gmax
Maximum, theoretic possible motor displacement per revision (cm
3
/rev)
V
gx
Minimum displacement setting of desired unit (cm
3
/rev)
V
gy
Maximum displacement setting of desired unit (cm
3
/rev)
x Minimum displacement (%)
y Maximum displacement (%)
W
Warning
Zero degree capability results in a high risk of overspeed and drops in efficiency if the motor operates
between 0–20% displacement.
Technical Information
H1 Bent Axis Variable Displacement Motors, Size 060/080/110/160/210/250
Controls – nomenclature, description
©
Danfoss | December 2016 11037153 | BC00000043en-US1103 | 69

Danfoss H1 Series Specifications

General

Brand	Danfoss
Model	H1 Series
Category	Engine
Language	English