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
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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Danfoss | January 2021 BC152886482203en-000701 | 3
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.
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P003 523E
Speed sensor
H1B Motor housing
SAE & DIN
H1B Motor housing
Cartridge
Target ring
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
General Information
Example:
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Danfoss | January 2021 BC152886482203en-000701 | 7
4
3
2
1
5
6
P006035
P001 913E
Low
time/s
time/s
time/s
Volt
Volt
Clockwise (CW) Rotation
Speed Signal 1
100 %
Duty Cycle
Speed Signal 2
Direction Signal
High
High
Low
Low
High
Volt
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products

Speed Sensor 4.5 – 8 V Technical Data

Speed sensor connector, 6-pin
1. Speed signal 2
2. Direction signal
3. Speed signal 1
4. Supply
5. Ground
6. Temperature
Technical data
Parameter Min. Nom. Max. Note Supply voltage
Supply protection Max. required supply current Max. output current Operation mode Temperature signal Output low
Output high Detectable frequency range Ordering number Color of connector
4.5 V
DC
30 V
25 mA At supply voltage
50 mA NPN & PNP Push-Pull amplifier
-40°C = 2.318V 100°C = 0.675V
5 % 8.5 % 12 %
88 % 91.5 % 95 %
1 Hz 10 000 Hz
149055
Black
5 V
8 V
DC
DC
Regulated supply voltage. Reverse polarity protected.
DC
Shuts off above 9 V.
Ratiometric output voltage Low state > 0 V to provide wire fault detection

Duty Cycles

Output speed signal technical data and duty cycles graphs (clockwise and counterclockwise rotation).
Duty cycle clockwise rotation
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P001 914E
Low
time/s
time/s
time/s
Volt
Volt
Counterclockwise (CCW) Rotation
Speed Signal 1
Speed Signal 2
Direction Signal
High
High
Low
Low
High
Volt
100 %
Duty Cycle
P001 917E
Low
time/s
time/s
time/s
Volt
Volt
Clockwise (CW) Rotation
Speed Signal 1
360 °
Phase Shift
Speed Signal 2
Direction Signal
High
High
Low
Low
High
Volt
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Speed Sensor 4.5 – 8 V Technical Data
Duty cycle counterclockwise rotation
Output speed signal technical data
Parameter Min. Nom. Max.
Output speed signal 1 Square wave
Output speed signal 2 Square wave
Duty cycle
Phase shift 70° 97.5° 125° Square wave
Direction signal
Low 5 % 8.5 % 12 % High 88 % 91.5 % 95 % Low 5 % 8.5 % 12 % High 88 % 91.5 % 95 % Clockwise (CW) CounterClockWise (CCW)
Low = CW 5 % 8.5 % 12 % High = CCW 88 % 91.5 % 95 %
42.5 % 50 % 57.5 %
Phase shift clockwise rotation
Low state > 0 V to provide wire fault detection. Ratiometric output voltage means that the output signal is proportional to the supply voltage. Example:
5 % of 5000 mV sensor supply = 250 mV sensor signal accepted as low output voltage 5 % of 4900 mV sensor supply = 245 mV sensor signal accepted as low output voltage
For more information see Wire Fault Detection on page 14 and Output Signals on page 10.
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Danfoss | January 2021 BC152886482203en-000701 | 9
Signal
Supply
GND
Speed & Direction sensor 4,5-8V
15k
15k
Controller Hardware
P301 547
1k 1
Sensor (+)
Ground (-)
Input
Voltage boundaries Faults
100%
95% 88%
60%
40%
12%
5% 0%
Signal short to power
Valid signal, high state
Ground lead open
Signal lead open
Power lead open
Valid signal, low state
Signal short to ground
P301 483E
Voltage boundaries Faults
100%
95% 88%
12%
5% 0%
Signal short to power
Valid signal, high state
Signal / Power or
Ground lead open
Valid signal, low state
Signal short to ground
P301 484E
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Speed Sensor 4.5 – 8 V Technical Data

Wire Fault Detection

The output voltage levels are defined for a direct connection of the sensor to supply. The outputs are directly connected to a load which is 15k Ohm to ground and 15k Ohm to Supply.
The signal outputs are protected by an 1100 ohm (1k1) resistor. Speed signal 1 (pin 3) offers an advanced error detection by providing different signal levels in case of an error.

Output Signals

Speed signal 1 (pin 3) signal conditions:
Speed signal 2 (pin 1) and direction signal (pin 2) signal conditions:
10 | © Danfoss | January 2021 BC152886482203en-000701
T = –1481.96 + √ 2.1962 · 106 +
(1.8639 – Vº)
3.88 · 10
-6
0
0
10
20
30
40
50
60
70
80
90
-100 100 200 300 400 500 600 700 800 900 1000
P003531E
Real temperature Temperature
Signal
T90 definition
T
90
Time (S)
Temperature (°C)
90 % of Temp
Temp
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Speed Sensor 4.5 – 8 V Technical Data

Temperature Sensor Data

For calculation of the case fluid temperature and the output signal voltage, see the formulas below:
VO – Measured output voltage (V)
Vo= (-3.88 • 10-6 • T2) + (-1.15 • 10-2 • T) + 1.8639
T – Temperature (°C)
Output signal voltage vs. Temperature
Temperature range
-55 °C** -40 °C -30 °C 0 °C +30 °C
2.485 V 2.318 V 2.205 V 1.864 V 1.515 V 0.919 V 0.675 V 0.303 V
*
Accuracy: ±1. 5 to ± 4 °C
**
Accuracy: ±2.5 to ± 5 °C
*
+80 °C +100 °C +130 °C
**
Response time in fluid
T90 definition
Response time in fluid (T90) = 360 s
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Danfoss | January 2021 BC152886482203en-000701 | 11
4
3
2
1
5
6
P006035
P001 913E
Low
time/s
time/s
time/s
Volt
Volt
Clockwise (CW) Rotation
Speed Signal 1
100 %
Duty Cycle
Speed Signal 2
Direction Signal
High
High
Low
Low
High
Volt
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products

Speed Sensor 7 - 32 V

Speed Sensor 7 – 32 VDC technical data and information about connector.
Speed sensor connector, 6-pin
Pinout:
1. Speed signal 2
2. Direction signal
3. Speed signal 1
4. Supply
5. Ground
6. Temperature signal
Technical data
Parameter Min. Max. Note Supply voltage range Supply protection
Max. required supply current Max. output current Operation mode
Output low signal range Output high signal range Detectable frequency range Speed sensor order number Color of connector
7 V
DC
36 V
30 mA
50 mA NPN open collector Internal 2k7 pull-up resistor to
2 % 10 % Max. output voltage 24 V
55 % 85 %
1 Hz 10 000 Hz
11232698
Yellow
32 V
DC
DC
36 VDC over voltage protection
-36 VDC permanent reverse polarity protection
supply
DC

Duty Cycles

Output speed signal technical data and duty cycles graphs (clockwise and counterclockwise rotation).
Duty cycle clockwise rotation
12 | © Danfoss | January 2021 BC152886482203en-000701
P001 914E
Low
time/s
time/s
time/s
Volt
Volt
Counterclockwise (CCW) Rotation
Speed Signal 1
Speed Signal 2
Direction Signal
High
High
Low
Low
High
Volt
100 %
Duty Cycle
P001 917E
Low
time/s
time/s
time/s
Volt
Volt
Clockwise (CW) Rotation
Speed Signal 1
360 °
Phase Shift
Speed Signal 2
Direction Signal
High
High
Low
Low
High
Volt
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Speed Sensor 7 - 32 V
Duty cycle counterclockwise rotation
Output speed signal technical data
Parameter Min. Nom. Max.
Output speed signal 1 Square wave
Output speed signal 2 Square wave
Duty cycle
Phase shift 70° 97.5° 125° Square wave
Direction signal
Low 5 % 8.5 % 12 % High 88 % 91.5 % 95 % Low 5 % 8.5 % 12 % High 88 % 91.5 % 95 % Clockwise (CW) CounterClockWise (CCW)
Low = CW 5 % 8.5 % 12 % High = CCW 88 % 91.5 % 95 %
42.5 % 50 % 57.5 %
Phase shift clockwise rotation
Low state > 0 V to provide wire fault detection. Ratiometric output voltage means that the output signal is proportional to the supply voltage. Example:
5 % of 5000 mV sensor supply = 250 mV sensor signal accepted as low output voltage 5 % of 4900 mV sensor supply = 245 mV sensor signal accepted as low output voltage
For more information see Wire Fault Detection on page 14 and Output Signals on page 10.
©
Danfoss | January 2021 BC152886482203en-000701 | 13
Signal
Supply
GND
Speed & Direction sensor 4,5-8V
15k
15k
Controller Hardware
P301 547
1k 1
Sensor (+)
Ground (-)
Input
Voltage boundaries
100%
85%
55%
10%
2% 0%
Signal short to power
Valid signal, high state
Signal / Power or
Ground lead open
Valid signal, low state
Signal short to ground
T = –1481.96 + √ 2.1962 · 106 +
(1.8639 – Vº)
3.88 · 10
-6
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Speed Sensor 7 - 32 V

Wire Fault Detection

The output voltage levels are defined for a direct connection of the sensor to supply. The outputs are directly connected to a load which is 15k Ohm to ground and 15k Ohm to Supply.
The signal outputs are protected by an 1100 ohm (1k1) resistor. Speed signal 1 (pin 3) offers an advanced error detection by providing different signal levels in case of an error.

Output Signals

Temperature Signal

Speed signals 1, 2 and direction signal
For calculation of the case fluid temperature and the output signal voltage, see the formulas below.
VO – Measured output voltage (V)
Vo= (-3.88 • 10-6 • T2) + (-1.15 • 10-2 • T) + 1.8639
T – Temperature (°C)
14 | © Danfoss | January 2021 BC152886482203en-000701
0
0
10
20
30
40
50
60
70
80
90
-100 100 200 300 400 500 600 700 800 900 1000
P003531E
Real temperature Temperature
Signal
T90 definition
T
90
Time (S)
Temperature (°C)
90 % of Temp
Temp
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products
Speed Sensor 7 - 32 V
Output signal voltage vs. Temperature
Temperature range
**
-55 °C
2.485 V 2.318 V 2.205 V 1.864 V 1.515 V 0.919 V 0.675 V 0.303 V
*
Accuracy: 30 ± 2.5 °C (max)
**
Nonlinearity ± 0.4 °C
Response time in fluid
Temperature sensor response time
-40 °C -30 °C 0 °C +30 °C
*
+80 °C +100 °C +130 °C
**
Response time in fluid (T90) = 360 s
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Danfoss | January 2021 BC152886482203en-000701 | 15
Technical Information
Speed and Temperature Sensor for Hydrostatic Propel Products

Appendix

MTTFd Values

MTTFd values are calculated per ISO 13849, assuming 50 % of all failures are dangerous. Duty cycle is 67% and main operating temperature assumption is 80 °C. According to the internal
Danfoss standard 504H0078, the daily working time is calculated with 8 hours/day and 200 working days per year.
Sensor Order Number
149055 11232698
Supply voltage 4,5-8V 7-32V Speed Signals two two MTTFd values 2098 years 301 years
16 | © Danfoss | January 2021 BC152886482203en-000701
Danfoss Power Solutions GmbH & Co. OHG
Krokamp 35 D-24539 Neumünster, Germany Phone: +49 4321 871 0
Danfoss Power Solutions ApS
Nordborgvej 81 DK-6430 Nordborg, Denmark Phone: +45 7488 2222
Danfoss Power Solutions (US) Company
2800 East 13th Street Ames, IA 50010, USA Phone: +1 515 239 6000
Danfoss Power Solutions Trading (Shanghai) Co., Ltd.
Building #22, No. 1000 Jin Hai Rd Jin Qiao, Pudong New District Shanghai, China 201206 Phone: +86 21 2080 6201
Products we offer:
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circuits (HICs) Hydrostatic motors
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Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic and electric components. We specialize in providing state-of-the-art technology and solutions that excel in the harsh operating conditions of the mobile off-highway market as well as the marine sector. Building on our extensive applications expertise, we work closely with you to ensure exceptional performance for a broad range of applications. We help you and other customers around the world speed up system development, reduce costs and bring vehicles and vessels to market faster.
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©
Danfoss | January 2021 BC152886482203en-000701
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