High-country-tek HFS-3 Bedienungsanleitung PDF herunterladen (Seite 10)

Hydraulic Fan System Controller – HFS-3-12v

• Plug driver unit onto valve coil to be driven.

• Remove ‘HFS-3’-12v securing screw

• Remove ‘HFS-3-12v’ opaque lid to reveal internal adjustments.

• Ensure command PWM signal is set to zero.

• Ensure that all wire connections are correct and secure.

• Turn I Min potentiometer 1 turn Anti-Clockwise ( Minimum ).

• Turn I Max potentiometer 20 turns Clockwise ( Maximum ).

• Apply 12VDC ( +10 to +14VDC absolute Maximum ) to the driver plug.

NON-INVERTED operation means that the output current follows the input command signal.

i.e. 10% PWM = Min O/P

90% PWM = Max O/P

This option is intended for use with a proportional flow control or variable pump electro-hydraulic stroker.

In this configuration, if the power supply fails, the fan unit will default to the OFF speed.

For this option to be activated, the user must remove ( by cutting ) link ‘A’, the location of which

is shown at the bottom of this page.

CAUTION:-

Link ‘A’, once removed, CANNOT be replaced.

• Slowly increase command to approx 90% of maximum PWM.

• Use the I Min adjustment to give minimum motor speed required.

• Slowly Increase command signal to 10% of maximum setting.

• Adjust I Max until desired motor maximum speed is achieved.

• Check that ‘Output ON’ led is functioning proportionally by varying the command signal.

• Ensure link ‘A’, is cut and REMOVED

Adjustment Guide:

NON-INVERTED valve control operation.

Link ‘A”

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High-country-tek HFS-3 Bedienungsanleitung Seite 10