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Danfoss Motor MP1

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Technical Information

MP1 Axial Piston Motors

Size 20/24, 28/32

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General Description

Overview..............................................................................................................................................................................................5

Features................................................................................................................................................................................................5

System Diagram................................................................................................................................................................................6

Schematic Diagram..........................................................................................................................................................................7

Technical Specification

Design Specifications......................................................................................................................................................................8

Technical Data................................................................................................................................................................................... 8

Operating Parameters.....................................................................................................................................................................9

Fluid Specifications..........................................................................................................................................................................9

Operation

Loop Flushing Valve......................................................................................................................................................................10

Anti-Cavitation and Shock Valve..............................................................................................................................................12

Speed and Temperature Sensor...............................................................................................................................................13

Available Sensors......................................................................................................................................................................13

Temperature range..................................................................................................................................................................14

Protection Characteristics......................................................................................................................................................14

Mating Connectors...................................................................................................................................................................14

Speed Sensor 4.5 - 8 V.............................................................................................................................................................14

Speed Sensor 7 - 32 V..............................................................................................................................................................15

Sensor Position..........................................................................................................................................................................16

Output Pulses.............................................................................................................................................................................16

Operating Parameters

Overview........................................................................................................................................................................................... 17

Speed Ratings..................................................................................................................................................................................17

System pressure............................................................................................................................................................................. 17

Case Pressure...................................................................................................................................................................................18

Temperature....................................................................................................................................................................................18

Viscosity.............................................................................................................................................................................................18

System Design and Parameters

Installation........................................................................................................................................................................................19

Filtration............................................................................................................................................................................................19

Reservoir............................................................................................................................................................................................19

Overpressure Protection (Only for open circuit system)................................................................................................. 19

Summing System Pressure Conditions..................................................................................................................................20

Loop Flushing..................................................................................................................................................................................20

Case Pressure / Open Circuit Operation................................................................................................................................ 20

Redundant Braking System Requirement.............................................................................................................................20

Fluid selection.................................................................................................................................................................................20

Case drain......................................................................................................................................................................................... 20

Bearing loads and life................................................................................................................................................................... 21

Shaft torque..................................................................................................................................................................................... 21

Shaft Loads.......................................................................................................................................................................................21

Duty Cycle and Bearing Life....................................................................................................................................................... 22

Hydraulic Equations Helpful for Motor Selection...............................................................................................................22

Determination of Nominal Motor Size................................................................................................................................... 23

Variables.......................................................................................................................................................................................23

Master Model Code

Model Code (B-C-D-E)...................................................................................................................................................................24

Model Code (K)................................................................................................................................................................................26

Model Code (L-M-N)......................................................................................................................................................................27

Features and Options

Shaft Options...................................................................................................................................................................................28

Installation drawings

Output Shafts: Option A (SAE A, B, 13 teeth)....................................................................................................................... 29

Technical Information

MP1 Axial Piston Motors Size 20/24, 28/32

Contents

Schematic Diagram

Closed Circuit

L2 N

P400620

For a close loop system, the system ports (A and B) connect to the high pressure work lines. The motor

receives pressurized fluid in its inlet port and discharges de-energized fluid through the outlet port.

Either port can act as inlet or outlet; flow is bidirectional. The motor has two case drains (L1 and L2). The

motor may include loop flushing. Loop flushing provides additional cooling and filtration capacity.

Open Circuit

L2 N

CCW

P400648

An open circuit configuration is also possible for the motor and such a system is shown above. A shock

valve and an anti-cavitation valve is provided to protect the unit from sudden pressure surges as well as

cavitation. The flow path of pressurized fluid is from port A through port B. In this configuration, the

direction of rotation of the motor is counter clockwise as seen from shaft side. Similarly, if the anti-

cavitation and shock valve is oriented in the reverse position, the direction of rotation will be clockwise.

Thus, pressurized fluid flow path is from port B through port A.

Technical Information

MP1 Axial Piston Motors Size 20/24, 28/32

General Description

Produktspecifikationer

Varumärke:	Danfoss
Kategori:	Motor
Modell:	MP1
Färg på produkten:	Zwart
Förpackningens vikt:	910 g
Snäll:	AV-zender
Maximal upplösning:	1920 x 1200 Pixels
Förvaringstemperatur:	-20 - 70 °C
Videoingång:	DVI-D
DVI-ingångsportar:	1
DVI-utgångar:	1
Mått (B x D x H):	49.78 x 75.69 x 14.98 mm
Video av:	DVI-D
Maximal-räckvidd:	1000 m
Drifttemperatur (TT):	0 - 50 °C
Relativ luftfuktighet i drift (VV):	5 - 85 procent