1, F2 Electric Two-Position Controls for H1B Motors
Contents
Product overview
Electric two-position controls......................................................................................................................................................
Latest version of technical literature.........................................................................................................................................4
F1EA and F2EA options.................................................................................................................................................................. 5
Mating connector parts list ..........................................................................................................................................................6
1, F2 Electric Two-Position Controls for H1B Motors
Product overview
Electric two-position controls
The electric two-position control consists of an off/on-solenoid which acts on a two position, three-way
porting spool. Servo pressure is internally supplied to the two-position porting spool by an integral
system pressure shuttle.
De-energized = maximum displacement
When the solenoid is de-energized, the motor runs at maximum displacement. When energized, the
solenoid applies a force on the spool which ports high pressure to the larger diameter of the servo piston
and strokes the motor to minimum displacement. When the solenoid is de-energized, the motor strokes
back to maximum displacement.
De-energized = minimum displacement
When the solenoid is de-energized, the motor runs at minimum displacement. When energized, the
solenoid applies a force on the spool which ports the larger diameter of the servo piston to tank, and
strokes the motor to maximum displacement. When the solenoid is de-energized, the motor strokes back
to minimum displacement.
Only certain control options for the H1B motor use this electric two-position control. Please refer to the
motor’s nomenclature to determine if the motor is equipped with the proper option. You can find the
nomenclature on the motor’s nametag. For nomenclature details, refer to H1B Bent Axis Variable
1, F2 Electric Two-Position Controls for H1B Motors
Product overview
F1EA and F2EA options
F1 – electric two-position 12 V / de-energized = min. displacement
F2 – electric two-position 24 V / de-energized = min. displacement
EA– without Pressure Compensator Over Ride / without Brake Pressure Defeat
A, BMain pressure lines
L1, L2Drain lines
M4, M5Gauge port servo pressure
MA, MBGauge port system pressure
NSpeed sensor (optional)
Options F1EA, F2EA
Solenoid C6
De-energized = min. displacement
Energized = max. displacement
Displacement versus control signal
Where:
1Maximum displacement
2Minimum displacement
Two-position control solenoid C6 technical data
Description12 V24 V
Supply voltageMinimum9.5 V
Max. (continuous)14.6 V
Nominal coil resistance @ 20 °C [68 °F]8.4 Ω34.5 Ω
Input currentRecommended1050 mA500 mA
IP RatingIEC 60 529IP 67
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