Electric two-position with proportional PCOR
The PPCOR valve consists of an electric proportional solenoid and a two-position, three-way porting
spool with an adjustable spring force on the opposite end of the spool. Maximum signal current to the
proportional solenoid overrides the pressure compensator and strokes the motor to maximum
displacement. The proportional solenoid changes the pressure compensator setting to allow different, on
the go, settings.
The solenoid and the high system pressure work against the spring on the end of the two-position, three-
way porting spool. With decreased signal current on the proportional solenoid, the reduction of the
forces from the proportional solenoid cause an increased pressure compensator setting for the high
system pressure and consequently provides a proportional pressure compensator.
During production test, the PPCOR setting is adjusted to 240 bar with the adjusting screw on the control
housing in reference to input current of:
•
800 mA for P1 (12 V)
•
400 mA for P2 (24 V)
Nomenclature
A B C D E F G H J K L M N P
H1 B
A
Q R
Z
A
N N N
B – Control Options
Code Description
P1 Electric two-position control with electric proportional PCOR, 12 V,
de-energized = minimum displacement, DEUTSCH DT 04-2P connector
P2 Electric two-position control with electric proportional PCOR, 24 V,
de-energized = minimum displacement, DEUTSCH DT 04-2P connector
C – Servo Supply Options
Code Description
DA Without brake pressure defeat (BPD)
D1 With BPD 12 V, de-energized BPD = PCOR active at port A, DEUTSCH DT 04-2P connector
D2 With BPD 24 V, de-energized BPD = PCOR active at port A, DEUTSCH DT 04-2P connector
G1 With BPD 12 V, de-energized BPD = PCOR active at port B, DEUTSCH DT 04-2P connector
G2 With BPD 24 V, de-energized BPD = PCOR active at port B, DEUTSCH DT 04-2P connector
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
Displacement Motors Technical Information, BC00000043.
Electrical Installation
P1, P2 Electric Two-Position Controls for H1B Motors
Product overview
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©
Danfoss | September 2018 BC00000278en-000302