Danfoss Orbital Motors User guide
Technical Information
Orbital Motors
with Speed Sensor
www.danfoss.com
Technical Information
Orbital Motors with Speed Sensor
Revision history Table of revisions
Date Changed Rev
June 2021 Changed document number from '520L0830' to 'BC152886483462' and removed obsolete
motors
June 2015 Removed some code numbers 0201
November 2014 Converted to Danfoss layout - DITA CMS CA
November 2012 First edition BF
0401
2 | © Danfoss | June 2021 BC152886483462en-000401
Technical Information
Orbital Motors with Speed Sensor
Contents
A wide range of Orbital Motors
A Wide Range of Hydraulic Motors............................................................................................................................................ 4
Survey of Literature with Technical Data on Danfoss Hydraulic Motors......................................................................4
Data survey
Introduction........................................................................................................................................................................................5
Principle............................................................................................................................................................................................... 5
Advantages.........................................................................................................................................................................................5
Typical Applications........................................................................................................................................................................ 5
Versions OMT EM and OMV EM
Versions................................................................................................................................................................................................6
Features available:...................................................................................................................................................................... 6
Code Numbers OMT EM and OMV EM
Code number.....................................................................................................................................................................................7
Ordering......................................................................................................................................................................................... 7
Technical Data OMT EM
Technical data for OMT EM...........................................................................................................................................................8
Max. Permissible Shaft Seal Pressure.........................................................................................................................................9
OMT EM with check valves and without use of drain connection:........................................................................... 9
OMT EM with check valves and with drain connection:............................................................................................... 9
Pressure drop in motor...................................................................................................................................................................9
Technical Data OMV EM
Technical data for OMV EM........................................................................................................................................................ 11
Max. Permissible Shaft Seal Pressure......................................................................................................................................11
OMV EM with check valves and without use of drain connection:.........................................................................11
OMV EM with check valves and with drain connection:.............................................................................................12
Pressure drop in motor................................................................................................................................................................ 12
Technical Data Speed Sensor
Technical Data Speed Sensor.................................................................................................................................................... 13
Mechanical data:.......................................................................................................................................................................13
Electrical data.............................................................................................................................................................................13
Wiring Diagram...............................................................................................................................................................................14
Speed Sensor with Plug Connection Dimensions..............................................................................................................14
Speed Sensor with Molded in Cable Dimensions.............................................................................................................. 15
Spare Parts........................................................................................................................................................................................15
Speed sensor..............................................................................................................................................................................15
Accessories.......................................................................................................................................................................................15
Cable with plug......................................................................................................................................................................... 15
Wire (shield)................................................................................................................................................................................16
Plug................................................................................................................................................................................................16
Shaft Versions
Shaft Versions..................................................................................................................................................................................17
Port Thread Versions
Port Thread Versions.....................................................................................................................................................................18
Dimensions - US Version
OMT EM............................................................................................................................................................................................. 19
Dimensions - European Version
OMT EM............................................................................................................................................................................................. 21
OMV EM............................................................................................................................................................................................. 22
Weight of Motors
Weight of Motors OMT and OMV.............................................................................................................................................24
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Danfoss | June 2021 BC152886483462en-000401 | 3
Technical Information
Orbital Motors with Speed Sensor
A wide range of Orbital Motors
A Wide Range of Hydraulic Motors
Danfoss is a world leader within production of low speed hydraulic motors with high torque. We can offer
more than 3000 different hydraulic motors, categorised in types, variants and sizes (incl. different shaft
versions).
The motors vary in size (rated displacement) from 25 cm3 [1.5 in3] to 800 cm3 [48.9 in3] per revolution.
Speeds range up to approx. 1700 min-1 (rpm) for the smallest type and up to approx
600 min-1 (rpm) for the largest type.
Maximum operating torques vary from 13 Nm [115 lbf·in] to 2700 Nm [24.000 lbf·in] (peak) and maximum
outputs are from 12 kW [16.1 hp] to 70 kW [95 hp].
Characteristic features:
Smooth running over the entire speed range
•
Constant operating torque over a wide speed range
•
High starting torque
•
High return pressure without the use of drain line (High pressure shaft seal)
•
High efficiency
•
Long life under extreme operating conditions
•
Robust and compact design
•
High radial and axial bearing capacity
•
For applications in both open and closed loop hydraulic systems
•
Suitable for a wide variety of hydraulics fluids
•
The programme is characterised by technical features appealing to a large number of applications and a
part of the programme is characterised by motors that can be adapted to a given application. Adaptions
comprise the following variants among others:
Motors with corrosion resistant parts
•
Wheel motors with recessed mounting flange
•
Short motors without bearings
•
Ultra short motors
•
Motors with integrated positive holding brake
•
Motors with integrated negative holding brake
•
Motors with integrated flushing valve
•
Motors with speed sensor
•
Motors with tacho connection
•
All motors are available with black finish paint
•
Survey of Literature with Technical Data on Danfoss Hydraulic Motors
Detailed data on all Danfoss motors can be found in our motor catalogue, which is divided into 5
individual subcatalogues:
General information on Danfoss hydraulic motors: function, use, selection of hydraulic motor,
•
hydraulic systems, etc.
Technical data on large motors: OMT and OMV
•
Technical data on large motors: TMK
•
Technical data on large motors: TMT
•
Technical data on large motors: TMVW
•
4 | © Danfoss | June 2021 BC152886483462en-000401
Technical Information
Orbital Motors with Speed Sensor
Data survey
Introduction
Danfoss has developed a speed sensor specially designed for LSHT motors.
The electric output signal is a standard voltage signal that can be used for regulating the speed motor.
Principle
The speed is measured by a sensor in accordance with the Hall principle. Signal processing and
amplification are performed in the sensor housing. A connection is provided in the housing for a Binder
Series 713 plug or a plug with 5 metres of cable (available from Danfoss). The sensor can also be supplied
with 2 metres molded in cable.
Advantages
Robust design
•
CE-marked
•
Fulfils EMC requirements of EN50081 and EN50082
•
Large frequency range, precise regulation
•
No limit on motor performance when compared to corresponding motors without speed sensor
•
IEC 529 degree of protection: IP 67
•
Replacable transducer
•
Standard speed signal
•
Easy installation
•
Electronic signal processing and amplification integrated in the sensor’s housing and requiring no
•
maintenance.
Typical Applications
Speed indication
•
Setting tightening speed in machine tools
•
Extend/retract positioning of work platforms
•
Granulate metering on injection moulding machines
•
Conveyor speed regulation
•
Metering on salt spreaders
•
©
Danfoss | June 2021 BC152886483462en-000401 | 5
Technical Information
Orbital Motors with Speed Sensor
Versions OMT EM and OMV EM
Versions
Mounting
flange
OMT EM Motors
Standard
flange
OMV EM Motors
Standard
flange
Spigot
diameter
Ø125 mm Ø160 mm Cyl. 40 mm G 3/4 X X X Yes Yes OMT EM
Ø5 in Ø6.38 Cyl. 1.5 in 11/16 - 12
Ø160 mm Ø200 mm Cyl. 50 mm G 1 X X X Yes Yes OMV EM
Bolt circle
diameter
(BC)
Shaft Port size European
version delivered
with sensor
for plug
connector
(PNP
version)
UN
US
version delivered
with
sensor
with 2 m
moduled
in cable
(PNP
version)
X X Yes Yes OMT EM
Side
port
vers
ion
Stan
dard
shaf
t
seal
Drai
n
conn
ectio
n
Chec
k
valve
Main type
designation
Features available:
Motors in european version: Speed sensor with 2 metres of molded in cable.
Motors in US versions: Speed sensor for plug connection.
Speed sensor for plug connector in NPN version.
The standard speed sensor is a PNP version
6 | © Danfoss | June 2021 BC152886483462en-000401
Technical Information
Orbital Motors with Speed Sensor
Code Numbers OMT EM and OMV EM
Code number
Code
numbers
OMT EM Motors
151B - - - 3260 3261 3262 3263 3264 3265 - 151B - - - 3700 3701 3702 3703 3704 3705 - -
OMV EM Motors
151B - - - - - - 3266 3267 3268 3269 3270
Displacements
80 100 125 160 200 250 315 400 500 630 800
Ordering
Add the four digit prefix “151-” to the four digit numbers from the chart for complete code number.
Orders will not be accepted without the four digit prefix.
©
Danfoss | June 2021 BC152886483462en-000401 | 7
Technical Information
Orbital Motors with Speed Sensor
Technical Data OMT EM
Technical data for OMT EM
Type
Motor size
Geometric displacements cm
[in3]
Max. speed min
rpm
Max torque Nm
[lbf•in]
Max. output kW
[hp]
Max. pressure drop bar
[psi]
Max. oil flow l/min
[US gal/min]
Max. starting pressure
with unloaded shaft
bar
[psi]
Min starting torque Nm
[lbf•in]
3
-1
cont. 625 625 500 380 305 240
int. 780 750 600 460 365 285
cont. 470
int. 560
cont. 26.5
1)
int.
cont. 200
1)
int.
2)
peak
cont. 100
1)
int.
at max. press.
drop cont.
at max. press.
drop int.
OMT EM
160
161.1
[9.83]
[4160]
[4960]
[35.5]
32.0
[42.9]
[2900]
240
[3480]
280
[4060]
[26.4]
125
[33.0]
10
[145]
340
[3010]
410
1)
[3630]
OMT EM
200
201.4
[12.29]
590
[5220]
710
[6280]
33.5
[44.9]
40.0
[53.6]
200
[2900]
240
[3480]
280
[4060]
125
[33.0]
150
[39.6]
10
[145]
430
[3810]
520
[4600]
OMT EM
250
251.8
[15.37]
730
[6460]
880
[7790]
33.5
[44.9]
40.0
[53.6]
200
[2900]
240
[3480]
280
[4060]
125
[33.0]
150
[39.6]
10
[145]
530
[4690]
630
[5580]
OMT EM
315
326.3
[19.91]
950
[8410]
1140
[10090]
33.5
[44.9]
40.0
[53.6]
200
[2900]
240
[3480]
280
[4060]
125
[33.0]
150
[39.6]
10
[145]
740
[6550]
890
7880]
OMT EM
400
410.9
[25.07]
1080
[9560]
1260
[11150]
30.0
[40.2]
35.0
[46.9]
180
[2610]
210
[3050]
240
[3480]
125
[33.0]
150
[39.6]
10
[145]
840
[7430]
970
[8590]
Frequency [Hz] max. 1014 975 780 598 475 371
1)
Intermittent operation: the permissible values may occur for max. 10% of every minute.
2)
Peak load: the permissible values may occur for max. 1% of every minute.
OMT EM
500
523.6
[31.95]
1220
[10800]
1370
[12130]
26.5
[35.5]
30.0
[40.2
160
[2320]
180
[2610]
210
[3050]
125
[33.0]
150
[39.6]
10
[145]
950
[8410]
1060
[9380]
Type Max. inlet pressure Max. return pressure with
drain line
OMT EM bar [psi]
cont.
bar [psi]
1)
int.
bar [psi]
2)
peak
1)
Intermittent operation: the permissible values may occur for max. 10% of every minute.
2)
Peak load: the permissible values may occur for max. 1% of every minute.
210
[3050]
250
[3630]
300
[4350]
140
[2030]
175
[2540]
210
[3050]
For further technical specifications please see technical information for OMT and OMV (BC152886483862)
8 | © Danfoss | June 2021 BC152886483462en-000401
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