These small size, simple to apply anywhere PWM output controllers connect directly onto the valve coil and comes complete with all mounting hardware needed and can be used to drive 12 or 24V hydraulic valves with a DIN 43650 connector footprint.
HFS-3-12V - 12V supply, ECU PWM command, 1200mA maximum output current
HFS-3-24V - 24V supply, ECU PWM Command, 600mA maximum output current
Designed to take the command signal directly from the low frequency PWM signal generated by the engine ECU / DCU the driver smoothly controls the output to the fan speed control valve ensuring correct cooling at all times.
Completely sealed to NEMA 6P / IP67 using our signature flame resistant epoxy resin process, and supplied with 10 feet of 4 core automotive grade pre-wired cable to allow easy connection and maintain integrity under extreme environmental operation.
Current feedback to compensate for coil heating and ‘under-lid’ manual adjustments for coil current, ramps up and down and dither are all available with a green led that tracks the proportional output level for clear visual indication of operation and also diagnostics if needed.
HFS-3 Product Features:
- Direct connect to low frequency PWM engine ECU fan speed signal
- 12V & 24V version of open loop single coil valve driver
- Separate ramp UP and Down adjustments for smooth control
- Unique 'Solid' potting with flame retardant materials
- Uni-directional open loop pump stroker or valve controller
- DIN 43650 footprint for mobile or industrial products
- LED diagnostics show full controller operation at all times
|Function||Hydraulic Fan System Controller||Direct connect to engine ECU|
|Number of Coils||1 Single||HFS-3-12V, 1200 mA @ 12VDC
HFS-3-24V, 600 mA @ 24VDC
|Control Input||PWM from engine ECS||5V (10% to 90% PWM)
20 to 125 Hz
|Ramp times||300mS to ~5 Sec (with I max at 100%)||Separate UP/Down settings|
|Dither Frequency||Adjustable||~100 to ~250Hz ( ± 20%)|
|Mating Connector Kit||3 Meter cable||pre-connected and color coded|
|Physical||68L x 34W x 40H mm|
|Mobile Equipment||IP67||Solid potted|
|Temperature ºC||-20 to +70 Deg. C||Operating|
|Voltage||12 or 24VDC ±20%||Reverse polarity protection and transient protection|