High Country Tek HFS-3 - Manual (Page 6)

Hydraulic Fan System Controller – HFS-3-12v
6
1) Board Style: HCT Unique Size and Mounting.
2) Connector Type: DIN 43650
3) Cable Type: Pre-connected 3M (~10ft) colour coded cable fitted.
4) Input Supply Voltage(s): 12V D.C. ( +10 - +14VDC absolute maximum )
5) Input Supply Current ( Max ): Maximum Valve Current Setting + 50mA Quiescent (Max)
6) Command Input Type: PWM ( From ECU ).
7) Command Input Value: 5V ( 10% to 90% PWM typical range ).
8) Command Input Frequency: 20 to 125Hz
9) Available adjustments: I Max, I Min,
Dither Frequency adjust.
11) Dither Frequency : Variable from 100Hz to 250Hz ( +/- 20% )
12) Environmental:
Totally ‘ENCAPSULATED’ Printed Circuit Board.
13) IP Rating: IP68 ( Min ) ( When assembled correctly )
14) NEMA Rating: NEMA 6P
15) Humidity: 95% Non Condensing.
16) Storage temp.: 120 Deg C ( Max )
17) Working temp.: -20 Deg C ( max ) to +70 Deg C ( Max ) Inc Ambient.
TOP VIEW OF PLUG
DRIVER WITH LID
REMOVED.
Product Specifications:
Note:
The output ramp UP and DOWN rate is
decided by the engine ECU rate of change
to the PWM signal.
The HFS3 controller is designed to track
and follow this command as closely as
possible to give optimized fan speed
operation.
Fully Anti-Clockwise = ~100Hz
Fully Clockwise = ~250Hz
Cmd
Clockwise adjustment
= Higher I Min.
‘I Min’ adjustment.
Io
u
t
Output Current
Adjustment ‘I Max’
Clockwise adjustment =
Increase Output Current
‘Output ON’ led
Dither Frequency
Adjustment.
Output invert Select link
Default
Inverted valve drive O/P drive = link intact
Non-inverted valve O/P drive = link cut