Electrical Installation
MP1 Pumps
Non-Feedback Proportional Electric
(NFPE) Control
powersolutions.danfoss.com
Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Revision history Table of revisions
Date Changed Rev
January 2018 add control current table 0103
November 2017 New cover image 0102
October 2017 First Edition 0101
2 | © Danfoss | January 2018 BC00000392en-US0103
Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Contents
Literature References
MP1 Reference Literature..............................................................................................................................................................4
Latest version of technical literature.........................................................................................................................................4
Product Overview
Product Image................................................................................................................................................................................... 5
Nomenclature....................................................................................................................................................................................5
Theory of operation.........................................................................................................................................................................6
NFPE proportional actuation.................................................................................................................................................. 6
Hydrostatic drive line power...................................................................................................................................................6
Hydraulic schematic........................................................................................................................................................................ 6
Electrical specifications.................................................................................................................................................................. 7
Electrical installation
Pinout....................................................................................................................................................................................................8
DEUTSCH connector.................................................................................................................................................................. 8
Pin compatibility...............................................................................................................................................................................8
Input/output matrix........................................................................................................................................................................ 8
Mating connector.............................................................................................................................................................................9
DEUTSCH connector parts list ............................................................................................................................................... 9
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Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Literature References
MP1 Reference Literature
Literature title Description Literature number
MP1 Axial Piston Pumps Technical Information Complete product electrical
Latest version of technical literature
Danfoss product literature is online at: http://powersolutions.danfoss.com/literature/
and mechanical
BC00000352
specifications
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MP1
P
Prod A B C
D F H
J
T
K
E
M N Z
L
V
G
W X
Y
Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Product Overview
Product Image
MP1 NFPE control
Nomenclature
Model code
D - Control
Code Description
SN1 NFPE, 12V, Manual Over-Ride, Inch ports
SN2 NFPE, 24V, Manual Over-Ride, Inch ports
MN1 NFPE, 12V, Manual Over-Ride, Metric ports
MN2 NFPE, 24V, Manual Over-Ride, Metric ports
Only certain control options for the MP1 pump utilize Non-Feedback Proportional Electric Control (NFPE).
Please refer to the pump’s nomenclature to determine if the pump is equipped with the proper option.
The nomenclature can be found on the pump’s nametag.
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0
Signal Current (mA(DC
avg
))
Displacement
100 %
100 %
NFPE control
∆p = 300 bar
∆p = 300 bar
∆p = 0 bar
∆p = 0 bar
W
C2C1
F00A
M14
T
PF00B
Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Product Overview
Theory of operation
The Non Feedback Proportional Electric (NFPE) control is an electrical automotive control in which an
electrical input signal activates one of two proportional solenoids that port charge pressure to either side
of the pump servo cylinder. The NFPE control has no mechanical feedback mechanism. The pump
displacement is proportional to the solenoid signal current, but it also depends upon pump input speed
and system pressure.
NFPE proportional actuation
Hydraulic schematic
Hydrostatic drive line power
Warning
Unintended vehicle or machine movement hazard. The loss of hydrostatic drive line power, in any mode
of operation (forward, neutral, or reverse) may cause the system to lose hydrostatic braking capacity. You
must provide a braking system, redundant to the hydrostatic transmission, sufficient to stop and hold the
vehicle or machine in the event of hydrostatic drive power loss.
NFPE Schematic
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Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Product Overview
Electrical specifications
Control current
Voltage a
12 V 600 mA 1080 mA 1360 mA any order
24 V 300 mA 540 mA 680 mA
*
Factory test current, for vehicle movement or application actuation expect higher or lower value.
MP1 pump NFPE electrical specifications
Voltage
Rated power
Coil resistance at 20º C [70º F]
Coil resistance at 80ºC [176ºF]
PWM frequency range
Recommended PWM frequency
Inductance
*
PWM signal required for optimum control performance. Verify the PWM frequency is set correctly in the PLUS+1
controller. The default is set at 4000 Hz which will significantly reduce NFPE performance.
*
b c Pin connections
*
12V 24V
18 W 18 W
3.66 Ω 14.20 Ω
4.52 Ω 17.52 Ω
70 to 200 Hz 70 to 200 Hz
100 Hz 100 Hz
33 mH 140 mH
®
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1 2
W
C1
C2
Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Electrical installation
Pinout
DEUTSCH connector
Pin location
Pinout
Pin Function
1 PWM signal
2 Ground
Pinout (alternative)
Pin Function
1 Ground
2 PWM signal
Pin compatibility
Input/output matrix
PLUS+1® module pin type
Pin Function
1, 2 PWMOUT/DOUT/PVG Power supply
1, 2 PWMOUT/DOUT/PVGOUT
1, 2 Power ground -
Warning
Unintended vehicle or machine movement hazard. Verify the wiring harness to ensure the correct PLUS
+1® pin is properly connected to each control pin.
NFPE/C1 and C2 location
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Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
Electrical installation
Pump output flow direction versus control signal
Shaft rotation CW CCW
Coil energized C1 C2 C1 C2
Port A in out out in
Port B out in in out
Servo port pressurized M5 M4 M5 M4
Mating connector
DEUTSCH connector parts list
Description Quantity Ordering number
Connector
Wedge lock
Socket contact (16 and 18 AWG)
Mating connector kit
1 DEUTSCH DT06-2S
1 DEUTSCH W2S
2 DEUTSCH 0462-201-16141
1 Danfoss K29657
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Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
10 | © Danfoss | January 2018 BC00000392en-US0103
Electrical Installation
MP1 Pumps Non-Feedback Proportional Electric (NFPE) Control
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Danfoss
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