Electric Drives and Controls Hydraulics Linear Motion and Assembly Technologies Pneumatics Service Speed sensor DSM RE 95132/11.08 Replaces: 07.
/12 Bosch Rexroth AG DSM Series 10 RE 95132/11.08 Ordering code DSM 1 01 02 – 10 03 Type 01 Hall-speed sensor (for mobile applications) DSM Version 1 02 Series 03 10 Material number: R917000301 Description The DSM1-10 Hall-effect speed sensor was specially developed for tough use in mobile working machines. The sensor detects the speed signal of ferromagnetic gear wheels or cut panels.
RE 95132/11.08 Bosch Rexroth AG DSM Series 10 3/12 Technical data Type DSM1-10 Nominal voltage 12 V Sensor operating voltage (USensor) 4.5 V to 20.0 V Current consumption Sensor current I Low I High maximum 16.8 mA 7 mA ±20 % 14 mA ±20 % ≥ 1.9 Signal ratio I High /I Low Tooth frequency up to 5 kHz1) Signal frequency ( = tooth frequency x 2) up to 10 kHz1) Measurement distance typically 1.
/12 Bosch Rexroth AG DSM Series 10 RE 95132/11.08 Block circuit diagram + + Usensor – Ilow, Ihigh RM USensor UV U RM Ilow, Ihigh RM Sensor operating voltage Supply voltage Signal voltage at measuring resistance Signal current level Measuring resistance A two-wire current interface is used for signal transmission. A current signal is supplied by the sensor. The low current (Ilow = induced current of the active element) is interpreted as low-signal.
RE 95132/11.08 Bosch Rexroth AG DSM Series 10 5/12 Output signals The output signal of the DSM1-10 consists of square-wave pulses of a constant amplitude, which are generated by the evaluation electronics of the DSM1-10. The length of the individual pulses provides information about the direction of rotation and any errors that there may be in the installation position. The evaluation electronics generate a high pulse of a certain length after every flank of the internal sensor speed signal.
/12 Bosch Rexroth AG DSM Series 10 RE 95132/11.08 Output signals Air-gap reserve (LR) and installation position (EL) The sensor reacts to magnetic flux changes.
RE 95132/11.08 Bosch Rexroth AG DSM Series 10 7/12 Output signals Performance during standstill Sensor signal after no speed signal was detected within one second: Sensor-internal speed signal Standstill pulse = 32 x LR Transmitted signal t = 0.7 s Description When the vehicle is stationary, pulses 1.44 ms in length are emitted every 0.7 seconds by the sensor. These pulses are also output after undervoltage if no speed signal is detected. In the standstill, an initialization is also performed.
/12 Bosch Rexroth AG DSM Series 10 RE 95132/11.08 Application on controllers Application with Rexroth BODAS controllers The reading of the DSM1-10 is possible with the following BODAS controllers: series 21, 22 and 30. In order to interpret the signal, it must be ensured that at 30 kHz input frequency the signal (after any low-pass filter that may be present) still exhibits a sufficient voltage difference (ΔV) for the evaluation .
RE 95132/11.08 Bosch Rexroth AG DSM Series 10 Dimensions 1000±15 R7 R4 -0.2 0 130.2 6.1 6 ø10.2 12.5 0 -0.2 0 18.4 -0.25 R7 B ø8.6 7.1 ±0.2 20° ø9.4 ±0.1 3.7 10 2.1 ø0.4 A 5.2 70.2 20.50.5 11.10.3 160.3 The connector is supplied with a clip for securing to the vehicle body. It is suitable for panel thicknesses of 0.7 to 6.0 mm and a vehicle body hole diameter of 6.5 to 7.0 mm. 15° ø10.31 ±0.25 7 +0.1 0 1.78 +0.38 -0.25 Installation hole +0.2 ø9.58 -0.
/12 Bosch Rexroth AG DSM Series 10 RE 95132/11.
RE 95132/11.08 Bosch Rexroth AG DSM Series 10 Gear specifications Material The sensor rings must be magnetically conductive. The material should be magnetically soft. So far free-cutting steels, hardened steels, sintered material (e.g. St37, 9SMn28, C45, GG20, GGG40, X8Cr17) have been tested. Gear meshing data valid for base tooth count 48 Nominal size z Base tooth count 48 > 4.
/12 Bosch Rexroth AG DSM Series 10 RE 95132/11.08 Safety instructions General instructions –– The suggested circuits do not imply any technical liability for the system on the part of Rexroth. –– System developments, installations and commissioning of electronic systems for controlling hydraulic drives must only be carried out by trained and experienced specialists who are sufficiently familiar with the components used and with the complete system.
