Hydraulic fan system controller – hfs-3-12v, Non-inverting valve control operation – High Country Tek HFS-3 User Manual
Page 12

Hydraulic Fan System Controller – HFS-3-12v
12
Adjustment Guide:
NON-Inverting valve control operation.
Output Characteristics: NON Inverted Valve operation.
I Max 100%
I Max 75%
I Max 50%
90%
PWM
10%
PWM
1200mA ( Max )
0%
PWM
100%
PWM
This graph shows the typical
adjustments for the PWM input
signal
Typical input / output current linearity graph of this controller.
0%
20%
40%
60%
80%
100%
110%
O
u
tp
u
t
Curre
n
t
m
A
0%
20%
30%
40%
50%
60%
70%
80%
100%
PWM input %
10%
90%
Typical characteristic of a normal
pressure or flow control valve or
variable
piston
pump
Electro-
hydraulic stroker. This option will
NOT allow
‘fail-to-full-speed’ safety
operation.
It is strongly recommended that the
INVERTED
option
is
used
in
conjunction with a reverse operating
pressure
control
valve
to
allow
‘fail-to-full-speed’ operation.