Danfoss Speed and Temperature Sensor Technical Information
Technical Information
Speed and Temperature Sensor
Hydrostatic Propel Products
www.danfoss.com
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Revision history Table of revisions
Date Changed Rev
January 2021 Changed document number from 'BC00000047' to 'BC152886482203' and added new
speed sensor
January 2020 Added MP1P and MP1M target ring information 0508
November 2019 Corrected speed sensor pinout information. 0507
June 2019 Formula for temperature calcullation corrected. 0506
May 2019 Minor update. 0505
February 2018 Minor update. 0504
November 2017 Minor layout changes. 0503
December 2015 Data for size 210 of H1B motor. 0502
2011-2014 Various changes. BA-FB
Sep 2009 First edition AA
0701
2 | © Danfoss | January 2021 BC152886482203en-000701
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Contents
General Information
Description..........................................................................................................................................................................................4
Theory of Operation........................................................................................................................................................................ 4
Speed Rings........................................................................................................................................................................................4
Target Ring..........................................................................................................................................................................................4
Temperature Range.........................................................................................................................................................................5
Protection Characteristics............................................................................................................................................................. 5
Mating Connectors.......................................................................................................................................................................... 5
Available Sensors..............................................................................................................................................................................5
Dimensions.........................................................................................................................................................................................6
Sensor Installation............................................................................................................................................................................6
Speed Sensor 4.5 – 8 V Technical Data
Duty Cycles......................................................................................................................................................................................... 8
Wire Fault Detection.....................................................................................................................................................................10
Output Signals................................................................................................................................................................................ 10
Temperature Sensor Data...........................................................................................................................................................11
Speed Sensor 7 - 32 V
Duty Cycles.......................................................................................................................................................................................12
Wire Fault Detection.....................................................................................................................................................................14
Output Signals................................................................................................................................................................................ 14
Temperature Signal.......................................................................................................................................................................14
Appendix
MTTFd Values.................................................................................................................................................................................. 16
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Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
General Information
Description
Function of the speed sensor is to detect the shaft speed. Typically the sensor is mounted to the housing
of a Danfoss pump or motor and senses the speed from a target ring that is rotating inside the pump or
motor.
Because of the digital output signals for speed the sensor is ideal for high and low speed measurements.
The speed sensor is designed for rugged outdoor, mobile or heavy industrial speed sensing applications.
The detection of the speed is contactless. It is custom-designed for Danfoss. It is a Plug and Perform device
that does not need any calibration or adjustments.
For diagnostics and other purposes, some sensor also has the capability to detect the driving direction
and the case oil temperature.
Theory of Operation
The speed sensor is externally powered and, in response to the speed of the target ring, outputs a digital
pulse signal. A magnet inside the sensor provides the magnetic field that changes with the position of
the target teeth.
The target ring is attached to the cylinder block or the shaft. Hall sensors change from high/low state as
the target teeth pass by the sensor´s face. The digital (on-off-on-off ) pulse train is fed to a controller,
which interprets its rate of change as a speed.
Some speed sensor uses two Hall sensors with specific distance and orientation resulting in a pulse train
output shift of 90° between the two sensors. A logic circuit decodes the two signals to provide an
additional direction indication (high or low depending on direction).
Due to the design of the sensor, the duty cycle (ratio between on and off time at constant speed) of both
speed signals at any working condition is close to 50 % and can be used for better resolution at low
speeds.
Speed Rings
Target Ring
Speed rings vary according to the diameter of the cylinder block or shaft on which they are installed. The
number of teeth can be seen in the technical information of the H1 pumps and H1 bent axis motors.
They may be ordered directly from the pump manufacturer or retrofitted to existing pumps and motors
by authorized service centers (specialized tooling is required for mounting).
Speed (target) rings vary according to the diameter of the cylinder block or shaft on which they are
installed. The number of teeth is shown in the table below.
The number of speed (target) ring teeth
H1P size 045/053 060/068 069/078 089/100 115/130 147/165 210/250
Teeth 79 86 86 92 102 108 90
The number of speed (target) ring teeth
H1B size 060 080 110 160 210 250
Teeth 71 78 86 95 104 108
The number of speed (target) ring teeth
MP1P size 028/032 038/045
Teeth 9 11
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Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
General Information
The number of speed (target) ring teeth
MP1M size 020/024
Teeth 9
Target ring for integrated drives
Integrated drive size IDMV 044 IDMV 053
Number of teeth
If a product is not seen in the tables, refer to technical information of the specific product.
Temperature Range
Parameter Minimum Maximum
Operation temperature range -40 °C 104 °C
115°C Intermittent = Short term; t < 1min per incident and not exceeding 2 % of duty cycle based loadlife.
75 79
Protection Characteristics
Mating Connectors
Available Sensors
Parameter Data
Protection Code (IP class)
according IEC 60529 and DIN 40050
EMC Emission EN 61000-6-3
EMC Immunity (EMI) 100 V/m incl. 1 kHz AM 80 %; ISO 11452-5 and -2
ESD EN 61000-4-2
Vibration 30 G (294 m/s2)
Shock 50 G (490 m/s2)
Case maximum pressure 5 bar [72.5 psi]
IP 67 (without connector installed)
IP 69k (with connector installed)
Air discharge: 15 kV
Contact discharge: 8 kV
There are available two types of mating connectors Assembly Bag DEUTSCH DTM06-6S, Black and Grey.
Ordering number
11033865 11033863
Assembly Bag, DEUTSCH DTM06-6S-E004; black, (24-20
AWG) 0.21 -0.52 mm²
Assembly Bag, DEUTSCH DTM06-6S, gray, (24-20 AWG)
0.21 -0.52 mm²
There are two speed sensors available according to different supply voltage range: 4.5 to 8 VDC and 7 to
32 VDC.
Description Order number
149055 11232698
Supply voltage 4.5 – 8 V 7 – 32 V
Speed signals Two, 90° Phase shift Two, 90° Phase shift
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Danfoss | January 2021 BC152886482203en-000701 | 5
52.0 max
[2.047]
7.0 min
[0.276]
6.40 ±0.10
[0.252 ±0.004]
∅1.78 ±0.08
[0.07 ±0.003]
un-stretched
6.83 ±0.15
[0.269 ±0.006]
31.96 ±0.15
[1.258 ±0.006]
31.62 ±0.21
[1.245 ±0.008]
to face of I.C
∅18.89 ±0.10
[0.744 ±0.004]
∅16.91 ±0.08
[0.666 ±0.003]
16.33 ±0.08
[0.643 ±0.003]
O-ring groove
diameter
15.60 ±0.23
[0.614 ±0.009]
un-stretched
O-ring inside
diameter
∅
30.0
[1.181]
19.2
[0.756]
P001 906E
21.05
[0.829]
2.00
[0.079]
61.96
[2.439]
2.67
[0.105]
65.00 max.
[2.559]
4x R 0.25
[0.01]
149055
YXXXZZZZ
Date code
Y = Year
XXX = Day of the year
ZZZZ = Serial number
Part number
7.42
[0.292]
4.50
[0.17 7]
1.42
[0.056]
15.00
[0.591]
mm
[in]
4
3 2 1
5 6
Sensor pinout
1 Speed signal 2
2 Direction signal
3 Speed signal 1
4 Supply
5 Ground
6 Temperature
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
General Information
Description Order number
149055 11232698
Direction signal One One
Temperature signal One One
For more information, see and .
Dimensions
For more details about Mating connector, see the chapters Speed Sensor 4.5 – 8 V Technical Data and
Speed Sensor 7 – 32 V (1 Speed Signal)
Sensor Installation
The sensor is positioned in the housing and fastened by one screw.
The gap between the sensor and the target does not need to be adjusted, nor it does need to be rotated
for direction sensing.
6 | © Danfoss | January 2021 BC152886482203en-000701
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