Danfoss H1P 078 Manual

Technical Information
H1 Axial Piston Single Pumps
Size 069/078
powersolutions.danfoss.com

Revision history Table of revisions
Date Changed Rev
May 2017 NFPE gen. 3 changes. 0801
November 2015 Master Model Code changes. 0700
September 2014 MDC, CCO, and Swash Angle Sensor options added GA
March 2014 Converted to Danfoss layout - DITA CMS FA
April 2013 FDC option added EA
Feb 2013 AC section added DA
Dec 2012 Size 69 added CA
Jun 2010 New EC directive BA
Jul 2009 First edition AA
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
2 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

Technical specifications H1 Pump General Specification...................................................................................................................................................5
Technical data H1P 069/078.........................................................................................................................................................5
Operating parameters H1P 069/078..........................................................................................................................................6
Fluid Specifications .........................................................................................................................................................................6
External Radial Shaft Loads...........................................................................................................................................................7
Bearing life H1P 069/078............................................................................................................................................................... 8
Mounting flange loads H1P 069/078.........................................................................................................................................8
Charge pump.....................................................................................................................................................................................9
Charge Pump Selection............................................................................................................................................................ 9
Charge pump flow and power curves, 14/17 cm³...........................................................................................................9
Master Model Code
Control Options Electrical Displacement Control (EDC)...................................................................................................................................17
EDC Control Signal Requirements......................................................................................................................................17
EDC Solenoid Data................................................................................................................................................................... 18
Control Response......................................................................................................................................................................19
EDC response time – H1P 069/078.....................................................................................................................................19
EDC response time – H1P 069/078.....................................................................................................................................19
Manual Displacement Control (MDC) ....................................................................................................................................20
MDC Torque................................................................................................................................................................................20
MDC General Information..................................................................................................................................................... 21
MDC Shaft Rotation................................................................................................................................................................. 21
Control Response......................................................................................................................................................................21
MDC response time – H1P 069/078................................................................................................................................... 22
Neutral Start Switch (NSS)..................................................................................................................................................... 22
Connector....................................................................................................................................................................................23
Case Gauge Port M14..............................................................................................................................................................23
Lever..............................................................................................................................................................................................23
Forward-Neutral-Reverse electric control (FNR), options: A9 (12 V) and B1 (24 V)................................................ 24
Control Response......................................................................................................................................................................25
FNR response time 060/068..................................................................................................................................................25
Non Feedback Proportional Electric Control (NFPE).........................................................................................................26
NFPE control signal requirements – H1P 069/078........................................................................................................27
Control Response......................................................................................................................................................................29
NFPE response time – H1P 069/078...................................................................................................................................29
Automotive Control (AC).............................................................................................................................................................30
Mode types................................................................................................................................................................................. 30
Basic functions...........................................................................................................................................................................30
Performance functions........................................................................................................................................................... 31
Protection and safety functions.......................................................................................................................................... 31
Engine control and protection.............................................................................................................................................31
Installation features................................................................................................................................................................. 31
Fan Drive Control (FDC)...............................................................................................................................................................32
Control Response......................................................................................................................................................................33
Response time, FDC 069/078................................................................................................................................................33
Manual Over Ride (MOR).............................................................................................................................................................34
Swash Plate Angle Sensor for AC2 controls..........................................................................................................................35
Swash Plate Angle Sensor Parameters..............................................................................................................................35
Swash plate angle sensor connector.................................................................................................................................35
Swashplate angle versus output voltage graph (calibrated at 50 °C), calculation formula...........................36
Interface with ECU....................................................................................................................................................................36
Control-Cut-Off valve (CCO valve)........................................................................................................................................... 37
CCO solenoid data....................................................................................................................................................................37
Brake gauge port with MDC................................................................................................................................................. 38
Displacement limiter.....................................................................................................................................................................39
Displacement change (approximately) H1P 069/078................................................................................................. 39
Dimensions
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Contents
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 3

H1P input shaft - Option G1 (SAE C, 14 teeth).....................................................................................................................40
H1P input shaft - Option G9 (SAE C-C, 23 teeth).................................................................................................................41
H1P input shaft - Option F1 (SAE C, 21 teeth)......................................................................................................................42
H1P input shaft, option F4, Code 38-3................................................................................................................................... 43
Tapered shaft customer acknowledgement...................................................................................................................43
H1P Auxiliary mounting, option H2 (SAE A, 9 teeth).........................................................................................................44
H1P Auxiliary mounting, option H1 (SAE A, 11 teeth) .....................................................................................................45
H1P Auxiliary mounting, option H3 (SAE B, 13 teeth) ......................................................................................................46
H1P Auxiliary mounting, option H5 (SAE B-B, 15 teeth) ................................................................................................. 47
H1P Auxiliary mounting, option H6 (SAE C, 14 teeth) ..................................................................................................... 48
H1P 069/078 displacement limiter, option B.......................................................................................................................49
Installation drawings Ports description H1P 069/078..................................................................................................................................................50
Dimensions H1P 069/078............................................................................................................................................................52
Controls Electric Displacement Control (EDC), option A2 (12 V)/A3 (24 V).................................................................................55
Electric Displacement Control (EDC), with MOR, option A4 (12 V)/A5 (24 V)...........................................................55
H1P 069/078 Manual Displacement Control (MDC), option M1...................................................................................56
H1P 069/078 Manual Displacement Control (MDC) with CCO, option M3, M4.......................................................57
H1P 069/078 Manual Displacement Control (MDC) with NSS, option M2................................................................58
H1P 069/078 Manual Displacement Control (MDC) with NSS and CCO, option M5, M6.....................................59
Forward-Neutral-Reverse (FNR) with manual override, option A9 (12 V)/B1 (24 V)...............................................60
Non Feedback Proportional Electric control (NFPE), with MOR, option A8 (12 V)/B8 (24 V).............................. 61
Non Feedback Proportional Electric control (NFPE) with Angle Sensor....................................................................62
Automotive Control (AC) Dimensions....................................................................................................................................63
Fan Drive Control (FDC), option F1 (12V) / F2 (24V).......................................................................................................... 64
Filtration H1P 069/078, suction filtration, option L ..............................................................................................................................65
Remote full charge pressure filtration, option P for end cap option F5 (SAE-C PTO)............................................65
Integral full flow charge pressure filtration with filter bypass sensor, option M ................................................... 66
External full flow charge pressure filtration, option S for end cap options D8 or F5.............................................67
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Contents
4 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

H1 Pump General Specification
Design Axial piston pump of cradle swashplate design with variable displacement
Direction of rotation Clockwise, Counterclockwise
Pipe connections Main pressure ports: ISO split flange boss
Remaining ports: SAE straight thread O-ring boss
Recommended installation
position Pump installation position is discretionary, however the recommended control position is on the top or at the side
with the top position preferred.
If the pump is installed with the control at the bottom, flushing flow must be provided through port M14 located on
the EDC, FNR and NFPE control.
Vertical input shaft installation is acceptable.
If input shaft is at the top 1 bar case pressure must be maintained during operation.
The housing must always be filled with hydraulic fluid.
Recommended mounting for a multiple pump stack is to arrange the highest power flow towards the input source.
Consult Danfoss for nonconformance to these guidelines.
Auxiliary cavity pressure Will be inlet pressure with internal charge pump. For reference see H1P 069/078 Operating Parameters.
Will be case pressure with external charge supply. Please verify mating pump shaft seal capability.
Technical data H1P 069/078
Feature Size 069 Size 078
Displacement 69.2 cm3
[4.22 in3]
78.1 cm3
[4.77 in3]
Flow at rated (continuous) speed 243 l/min
[53.5 US gal/min]
273 l/min
[72 US gal/min]
Torque at maximum displacement
(theoretical) 1.1 N•m/bar
[672 lbf•in/1000 psi]
1.24 N•m/bar
[758 lbf•in/1000 psi]
Mass moment of inertia of rotating
components 0.0077 kg•m2
[0.0057 slug•ft2]
0.0094 kg•m2
[0.00693 slug•ft2]
Mass [weight] dry 56 kg [123 lb] (without charge pump or auxiliary mounting flange)
Oil volume 2 l [0.5 US gal]
Mounting flange ISO 3019-1 flange 127-4 (SAE C)
Input shaft outer diameter,
splines and tapered shafts
ISO 3019-1, outer Ø 32 mm - 4 (SAE C, 14 teeth)
ISO 3019-1, outer Ø 35 mm - 4 (SAE C, 21 teeth)
ISO 3019-1, outer Ø 38 mm - 4 (SAE C-C, 23 teeth)
Conical keyed shaft end similar to ISO 3019-1 code 38-3, taper 1:8
Auxiliary mounting flange
with metric fasteners,
Shaft outer diameter and splines
ISO 3019-1, flange 82 - 2, outer Ø 16 mm - 4 (SAE A, 9 teeth)
ISO 3019-1, flange 82 - 2, outer Ø 19 mm - 4 (SAE A, 11 teeth)
ISO 3019-1, flange 101 - 2, outer Ø 22 mm - 4 (SAE B, 13 teeth)
ISO 3019-1, flange 101 - 2, outer Ø 25 mm - 4 (SAE B-B, 15 teeth)
ISO 3019-1, flange 127 - 4, outer Ø 32 mm - 4 (SAE C, 14 teeth)
Suction port Port ISO 11926-1 – 1 5∕8-12 (SAE O-ring boss)
Main port configuration Ø25.4 - 450 bar split flange boss per ISO 6162, M12x1.75
Case drain ports L2, L4 Port ISO 11926-1 – 1 1∕16 -12 (SAE O-ring boss)
Other ports SAE O-ring boss
Customer interface threads Metric fasteners
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Technical specifications
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 5

Operating parameters H1P 069/078
Feature Size 069/078
Input speed
(at minimum charge/
control pressure)
Minimum for internal charge supply.1) 500 min-1 (rpm)
Minimum for external charge supply.2) 500 min-1 (rpm)
Minimum for full performance for internal
charge supply.
1200 min-1 (rpm)
Rated 3500 min-1 (rpm)
Maximum 4000 min-1 (rpm)
System pressure Maximum working pressure 450 bar [6528 psi]
Maximum pressure 480 bar [6960 psi]
Maximum low loop 45 bar [650 psi]
Minimum low loop pressure 10 bar [145 psi]
Charge pressure Minimum 16 bar [232 psi]
Maximum 35 bar [508 psi]
Control pressure Minimum (at corner power for EDC, MDC and
FNR)
14 bar [203 psi]
Minimum (at corner power for NFPE) 25 bar [363 psi]
Maximum 40 bar [580 psi]
Charge pump inlet
pressure Rated 0.7 bar (absolute) [9 in Hg vacuum]
Minimum (cold start) 0.2 bar (absolute) [24 in Hg vacuum]
Maximum 4 bar [58 psi]
Case pressure Rated 3 bar [44 psi]
Maximum 5 bar [73 psi]
Lip seal external maximum pressure 0.4 [5.8 psi]
1) Performance (pressure and displacement) may be limited due to limited control pressure.
2) Full performance (pressure and displacement) possible at minimum charge and control pressure supply.
Fluid Specifications
Viscosity and Temperature range
Feature Unit Data
Viscosity
Intermittent1)
mm2/s [ SUS]
5 [42]
Minimum 7 [49]
Recommended range 12 – 80 [66 – 370]
Maximum 1600 [7500]
Temperature
range2)
Minimum3) (Cold start)
°C [ °F]
-40 [-40]
Recommended range 60 – 85 [140 – 185]
Rated 104 [220]
Maximum Intermittent1) 115 [240]
1) Intermittent = Short term t < 1min per incident and not exceeding 2 % of duty cycle based load-life
2) At the hottest point, normally case drain port
3) Cold start = Short term t < 3 min, p ≤ 50 bar [725 psi], n ≤ 1000 min-1 (rpm)
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Technical specifications
6 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

Filtration, Cleanliness level and Efficiency βx-ratio ( Recommended Minimum)
Cleanliness per ISO 4406 22/18/13
Efficiency βx(charge pressure filtration) β15-20 = 75 (β10 ≥ 10)
Efficiency βx(suction and return line Filtration) β35-45 = 75 (β10 ≥ 2)
Recommended inlet screen mesh size 100 – 125 µm
External Radial Shaft Loads
The pumps are designed with bearings that can accept some external radial loads. The external radial
shaft load limits are a function of the load position and orientation, and the operating conditions of the
unit. External radial shaft loads impact lifetime. For lifetime calculations please contact your Danfoss
representative.
The maximum allowable radial load (Re) is based on the maximum external moment (Me) and the
distance (L) from the mounting flange to the load. It may be determined using the following formula:
Re= Me
L
Radial load position
P003 318E
L
270° Re
Re
Me
180° Re
90° Re
0° Re
Me= shaft moment
L= flange distance
Re= external force to the shaft
Thrust loads should be avoided. Contact your Danfoss representative in the event thrust loads are
anticipated.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Technical specifications
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 7

Bearing life H1P 069/078
Maximum external shaft moment based on shaft deflection (both sizes 069/078):
Me= 109 N•m [965 lbf•in]
All external shaft loads affect bearing life. In applications with external shaft loads, minimize the impact
by positioning the load at 0° or 180° as shown in the figure. Danfoss recommends clamp-type couplings
for applications with radial shaft loads.
Contact your Danfoss representative for an evaluation of unit bearing life if you have continuously
applied external loads exceeding 25 % of the maximum allowable radial load (Re) or the pump
swashplate is positioned on one side of center all or most of the time.
Mounting flange loads H1P 069/078
The moments shown below apply for top or side control orientation.
Mounting flange loads, Size 069/078
P001 916
MR
MS
Rated moment:
MR= 3700 N•m [32 750 lbf•in]
Shock load moment:
MS= 7900 N•m [69 920 lbf•in]
For more information, see H1 Axial Piston Pumps, Basic Information, BC00000057, the section “Mounting
flange loads”.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Technical specifications
8 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

Charge pump
Charge Pump Selection
In most applications a general guideline is that the charge pump displacement should be at least 10% of
the total displacement of all components in the system. Unusual application conditions may require a
more detailed review of charge flow requirements. System features and conditions which may invalidate
the 10% guideline include (but are not limited to):
•Continuous operation at low input speeds < 1500 min-1 (rpm)
•High shock loading and/or long loop lines
•High flushing flow requirements
•Multiple low speed high torque motors
•High input shaft speeds
Contact your Danfoss representative for application assistance if your application includes any of these
conditions.
Charge pump flow and power curves, 14/17 cm³
Charge pressure: 20 bar [290 psi]
Viscosity: 11 mm²/s [63 SUS]
Temperature: 80°C [176°F]
Charge pump power requirements
00
1.0
9.0
8.0
7.0
6.0
5.0
4.0
2.0
3.0
1
2
3
4
5
6
HP
kW
17 cm
3
[1.04 in
3
/rev]
14 cm
3
[0.85 in
3
/rev]
P003 336E
0 500 1500
1000 2000
Speed min-1(rpm)
3000 4000
2500 3500
Charge pump flow
0
1
3
6
9
12
15
18
10
20
30
40
50
60
US gal/min
l/min
17 cm
3
[1.04 in
3
/rev]
14 cm
3
[0.85 in
3
/rev]
P003 334E
0 500 1500
1000 2000
Speed min-1(rpm)
3000 4000
2500 3500
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Technical specifications
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 9

A
G H J K M N S T V W X YZ D EF
A
H1P
A B
Displacement
069 69.2 cm3[4.22 in3]
078 78.1 cm3[4.77 in3]
A – Rotation
LLeft hand (counter clockwise)
RRight hand (clockwise)
B – Product version
CRevision code
Z – Port configuration
AInch, Customer O-ring port sealing according to ISO 11926-1
D – Controls — Electric Displacement Control (EDC)
Code Control type Voltage MOR CCO with key C DEUTSCH
Connector
A2 EDC 12 V — —
A3 EDC 24 V — —
A4 EDC 12 V —
A5 EDC 24 V —
E7 EDC 12 V —
E8 EDC 24 V —
– To be used for the control; — Not to be used for the control
D – Controls (continued) — Non Feedback Proportional Electric Control (NFPE)
Code Control type Voltage MOR CCO with key C Angle sensor DEUTSCH
Connector
N1 NFPE 12 V — —
N2 NFPE 24 V — —
N3 NFPE 12 V —
N4 NFPE 24 V —
N5 NFPE 12 V —
N6 NFPE 24 V —
N7 NFPE 12 V — —
N8 NFPE 24 V — —
Align with options: E: Displacement limiters and W: Special hardware.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Master Model Code
10 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

A
G H J K M N S T V W X YZ D EF
A
H1P
A B
D – Controls (continued) — Automotive Control (AC)
Code AC type Voltage MOR Speed
sensor Wire harness Angle sensor DEUTSCH Connector
P6 AC–1 12 V —
P7 AC–1 24 V —
P8 AC–2 12 V
P9 AC–2 24 V
P5 AC–1 12 V — — —
R3 AC–1 24 V — — —
R4 AC–2 12 V — —
R5 AC–2 24 V — —
– To be used for the control; — Not to be used for the control
D – Controls (continued) — Manual Displacement Control (MDC)
Code Control type CCO Voltage CCO Neutral Start
Switch DEUTSCH Connector
M1 MDC — — — —
M2 MDC — —
M3 MDC 12 V —
M4 MDC 24 V —
M5 MDC 12 V
M6 MDC 24 V
Align with options F: Orifices and Y: Settings for adjustment (if applicable).
D – Controls (continued) — Fan Drive Control (FDC)
Code Control type Voltage DEUTSCH Connector
F1 FDC 12 V
F2 FDC 24 V
Align with options: F: Orifices, E: Displacement limiters, M, N: Overpressure protection, and W: Special hardware.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Master Model Code
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 11

A
G H J K M N S T V W X YZ D EF
A
H1P
A B
F – Orifices
Code Orifice Controls: To be used for ( ) / NOT to be used for (–)
Tank (A+B) P A / B EDC, FNR MDC NFPE, AC FDC
C3 No orifice – –
C1 – – 0.8 mm –
C2 – – 1.3 mm
C4 – – 1.8 mm –
C6 1.0 mm – – – –
C7 1.3 mm – – – – –
D1 0.8 mm 1.0 mm – – – –
D2 0.8 mm 1.3 mm – – – –
D3 1.0 mm 1.3 mm – – – –
D4 1.0 mm 1.3 mm 1.3 mm – – –
D5 0.6 mm 0.6 mm 0.8 mm – – –
D6 1.3 mm 1.3 mm – – – –
D7 – – 3.0 mm – – –
E – Displacement limiter
NNone
CNo limiters, with nested springs, required for NFPE, AC, FDC *
BAdjustable externally
DAdjustable externally with nested springs, required for NFPE, AC, FDC*
*Align with option Y: Settings for adjustment (if applicable).ima1444887758105
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Master Model Code
12 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

A
G H J K M N S T V W X YZ D EF
A
H1P
A B
G – Endcap options (Twin port, ISO 6162 split flange ports)
Align with options T – Filtration (below) and K – Auxiliary mounting pads:
•ISO 3019-1, flange 82–2 (SAE A, 9 and 11 teeth)
•ISO 3019-1, flange 101–2 (SAE B, 13 teeth)
•ISO 3019-1, flange 101–2 (SAE B-B, 15 teeth) or None
Code Suction filtration Integral full charge flow
filtration Remote or external charge supply for full charge flow
filtration
D3 – –
D6 – –
D8 – –
Align with option K – Auxiliary mounting pad: ISO 3019-1, flange 127–4 (SAE C, 14 teeth)
F4 – –
F5 – –
F6 – –
H – Mounting
HISO 3019-1, flange 127–4 (SAE C)
KISO 3019-1, flange 127–4 (SAE C), 4-bolt and speed sensor
J – Input shaft
G1 ISO 3019-1, outer Ø32 mm - 4 (SAE C, 14 teeth splined shaft 12/24 pitch)
G9 ISO 3019-1, outer Ø38 mm - 4 (SAE C-C, 23 teeth splined shaft 16/32 pitch
F1 ISO 3019-1, outer Ø35 mm - 4 (SAE C, 21 teeth splined shaft 16/32 pitch)
F4 Conical keyed shaft end similar to ISO 3019-1 code 38-3, taper 1:8 (key not supplied with pump)
K – Auxiliary mounting pad per ISO 3019-1 (Align with option G: Endcap selection)
NN None
H1 Flange 82–2, outer Ø19 mm - 4 (SAE A, 11 teeth 16/32 coupling)
Shipping cover
H2 Flange 82–2, outer Ø16 mm - 4 (SAE A, 9 teeth 16/32 coupling)
H3 Flange 101–2, outer Ø22 mm - 4 (SAE B, 13 teeth 16/32 coupling)
H5 Flange 101–2, outer Ø25 mm - 4 (SAE B-B, 15 teeth 16/32 coupling)
H6 Flange 127–4, outer Ø32 mm - 4 (SAE C, 14 teeth 12/24 coupling)
S1 Flange 101–2, outer Ø22 mm - 4 (SAE B, 14 teeth 12/24 coupling, not SAE standard)
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Master Model Code
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 13

A
G H J K M N S T V W X YZ D EF
A
H1P
A B
M – Overpressure protection type, side “A” / N – Overpressure protection type, side “B”
Pressure limiter and HPRV with bypass, pressure protection type must be the same for side “A” and “B”
L1) Pressure limiter setting HPRV setting
L15 150 bar [2900 psi] 200 bar [2900 psi]
L18 180 bar [2610 psi] 250 bar [3630 psi]
L20 200 bar [2900 psi] 250 bar [3630 psi]
L23 230 bar [3336 psi] 280 bar [4061 psi]
L25 250 bar [3630 psi] 300 bar [4350 psi]
L28 280 bar [4061 psi] 330 bar [4786 psi]
L30 300 bar [4350 psi] 350 bar [5080 psi]
L33 330 bar [4786 psi] 380 bar [5510 psi]
L35 350 bar [5080 psi] 400 bar [5800 psi]
L38 380 bar [5510 psi] 420 bar [6090 psi]
L40 400 bar [5800 psi] 450 bar [6526 psi]
L42 420 bar [6090 psi] 450 bar [6526 psi]
L45 450 bar [6526 psi] 480 bar [6962 psi]
Overpressure protection type and setting for FDC
F01 150 bar [2175 psi] 250 bar [3630 psi]
F02 150 bar [2175 psi] 300 bar [4350 psi]
F03 150 bar [2175 psi] (Available for 069 only.) 350 bar [5080 psi]
High pressure relief valve with bypass, pressure protection type must be the same for side “A” and “B”
K1) Pressure setting2)
K18 180 bar [2610 psi]
K20 200 bar [2900 psi]
K23 230 bar [3336 psi]
K25 250 bar [3630 psi]
K28 280 bar [4061 psi]
K30 300 bar [4350 psi]
K33 330 bar [4786 psi]
K35 350 bar [5080 psi]
K38 380 bar [5510 psi]
K40 400 bar [5800 psi]
K42 420 bar [6090 psi]
K45 450 bar [6526 psi]
1) L, F – with pressure limiter; K – without pressure limiter.
2) Please contact Danfoss for pressures not shown or for applied pressure above max. working pressure.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Master Model Code
14 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

A
G H J K M N S T V W X YZ D EF
A
H1P
A B
S – Charge pump
F14 cm³/rev [0.85 in³/rev]
C17 cm³/rev [1.03 in³/rev]
NNo charge pump, external charge supply (Align with options: E and T)
T – Filtration (Align with option G: Endcap selection)
LSuction filtration (see H1P 069/078, suction filtration, option L on page 65)
MIntegral full charge flow filtration with bypass, bypass sensor, medium filter length, 11004918
NIntegral full charge flow filtration with bypass, bypass sensor (no filter)
PRemote full charge flow filtration
EExternal charge flow filtration (Align with options: Nand S)
V – Charge pressure relief setting
20 20 bar [290 psi]
Not to be used for NFPE, AC and FDC controls.
22 22 bar [319 psi]
24 24 bar [348 psi]
26 26 bar [377 psi]
28 28 bar [406 psi]
30 30 bar [435 psi]
32 32 bar [464 psi]
34 34 bar [493 psi]
W – Special hardware features
PN EDC / FNR / MDC valve plate
P1 NFPE valve plate (Align with options: Dand E)
P2 NFPE / FDC / AC valve plate and speed ring on the cylinder block
P4 EDC / FNR / MDC valve plate with speed ring on the cylinder block (Align with options: Dand E)
H1 MDC / EDC / FNR valve plate with MDC handle
X – Paint and nametag
NNN Black paint and Danfoss nametag
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Master Model Code
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 15

A
G H J K M N S T V W X YZ D EF
A
H1P
A B
Y – Special settings (SIL–2 non-certifiable, without customer files)
Code CAN J1939 ECO fuel saving
mode Functional option Cruise control Control AC type
D3E in/out E – N1
(12 VDC)
AC–1
D3F in/out – F –
D4E in/out E – N2
(24 VDC)
D4F in/out – F –
D5F in/out – F – P8
(12 VDC)AC–2
with Swash Plate
Angle Sensor
D5J in/out J
D6F in/out – F – P9
(24 VDC)
D6J in/out J
M00 MDC handle standard position
NNN None
= available option
– = not available option
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Master Model Code
16 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

Electrical Displacement Control (EDC)
The Electrical Displacement Control (EDC) consists of a pair of proportional solenoids on each side of a
three-position, four-way porting spool. The proportional solenoid applies a force input to the spool,
which ports hydraulic pressure to either side of a double acting servo piston.
Differential pressure across the servo piston rotates the swashplate, changing the pump‘s displacement
from full displacement in one direction to full displacement in the opposite direction.
Under some circumstances, such as contamination, the control spool could stick and cause the pump to
stay at some displacement. A serviceable 125 μm screen is located in the supply line immediately before
the control porting spool.
Electrical Displacement Control, with hydraulic schematic
P003 191
Feedback from
Swash plate
PTF00B
M14
C1 C2
F00A
P003 478E
Pump displacement vs. control current
P003 479E
"0"
-b -a
ba
100 %
100 %
Displacement
Current mA
EDC Control Signal Requirements
Control minimum current to stroke pump
Voltage a*b Pin connections
12 V 640 mA 1640 mA any order
24 V 330 mA 820 mA
*Factory test current, for vehicle movement or application actuation expect higher or lower value.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Control Options
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 17

1 2
P003 480
Connector ordering data
Description Quantity Ordering data
Mating connector 1 DEUTSCH DT06-2S
Wedge lock 1 DEUTSCH W2S
Socket contact (16 and 18 AWG) 2 DEUTSCH 0462-201-16141
Danfoss mating connector kit 1 K29657
EDC Solenoid Data
Solenoid data
Description 12 V 24 V
Maximum current 1800 mA 920 mA
Nominal coil resistance @ 20 °C [68 °F] 3.66 Ω 14.20 Ω
@ 80 °C [176 °F] 4.52 Ω 17.52 Ω
Inductance 33 mH 140 mH
PWM signal frequency Range 70 – 200 Hz
Recommended*200 Hz
IP Rating IEC 60 529 IP 67
DIN 40 050, part 9 IP 69K with mating connector
Connector color Black
*PWM signal required for optimum control performance.
Pump output flow direction vs. control signal
Shaft rotation CW CCW
Coil energized*C1 C2 C1 C2
Port A out in in out
Port B in out out in
Servo port pressurized M4 M5 M4 M5
*For coil location see Installation drawings.
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Control Options
18 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801

Control Response
H1 controls are available with optional control passage orifices to assist in matching the rate of
swashplate response to the application requirements (e.g. in the event of electrical failure). The time
required for the pump output flow to change from zero to full flow (acceleration) or full flow to zero
(deceleration) is a net function of spool porting, orifices, and charge pressure. A swashplate response
table is available for each frame indicating available swashplate response times. Testing should be
conducted to verify the proper orifice selection for the desired response.
H1 pumps are limited in mechanical orificing combinations. Mechanical servo orifices are to be used only
for fail-safe return to neutral in the event of an electrical failure.
Typical response times at the following conditions:
∆p 250 bar [3626 psi]
Viscosity and temperature 30 mm²/s [141 SUS] and 50 °C [122 °F]
Charge pressure 20 bar [290 psi]
Speed 1800 min-1 (rpm)
EDC response time – H1P 069/078
Stroking direction 0.8 mm [0.03 in] Orifice 1.3 mm [0.05 in] Orifice No orifice
Neutral to full flow 1.9 s 0.9 s 0.6 s
Full flow to neutral 1.6 s 0.9 s 0.5 s
EDC response time – H1P 069/078
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Control Options
©Danfoss | May 2017 11062169 | BC00000058en-US0801 | 19

Manual Displacement Control (MDC)
A Manual proportional Displacement Control (MDC) consists of a handle on top of a rotary input shaft.
The shaft provides an eccentric connection to a feedback link. This link is connected on its one end with a
porting spool. On its other end the link is connected the pumps swashplate.
This design provides a travel feedback without spring. When turning the shaft the spool moves thus
providing hydraulic pressure to either side of a double acting servo piston of the pump.
Differential pressure across the servo piston rotates the swash plate, changing the pump’s displacement.
Simultaneously the swashplate movement is fed back to the control spool providing proportionality
between shaft rotation on the control and swashplate rotation.
The MDC changes the pump displacement between no flow and full flow into opposite directions. Under
some circumstances, such as contamination, the control spool could stick and cause the pump to stay at
some displacement.
A serviceable 125 μm screen is located in the supply line immediately before the control porting spool.
The MDC is sealed by means of a static O-ring between the actuation system and the control block. Its
shaft is sealed by means of a special O-ring which is applied for low friction. The special O-ring is
protected from dust, water and aggressive liquids or gases by means of a special lip seal.
Manual Displacement Control
P301 749
Pump displacement vs. control lever rotation
"0" Lever rotation
"A"
Displacement
100 %
a
-a
100 %
"B"
-b
-d
bc
d
-c
P301 752
Legend:
Deadband on Bside – a= 3° ±1°
Maximum pump stroke – b= 30° +2/-1°
Required customer end stop – c= 36° ±3°
Internal end stop – d= 40°
MDC Torque
Description Value
Torque required to move handle to maximum displacement 1.4 N•m [12.39 lbf•in ]
Torque required to hold handle at given displacement 0.6 N•m [5.31 lbf•in]
Maximum allowable input torque 20 N•m [177 lbf•in]
Technical Information
H1 Axial Piston Single Pumps, Size 069/078
Control Options
20 | ©Danfoss | May 2017 11062169 | BC00000058en-US0801