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	0401
			motors
	June 2015		Removed some code numbers	0201
	November 2014	Converted to Danfoss layout - DITA CMS		CA
	November 2012		First edition	BF

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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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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

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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

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Technical Information

Orbital Motors with Speed Sensor

Versions OMT EM and OMV EM

Versions

Mounting	Spigot	Bolt circle	Shaft	Port size	European	US	Side	Stan	Drai	Chec	Main type
flange	diameter	diameter			version -	version -	port	dard	n	k	designation
		(BC)			delivered	delivered	vers	shaf	conn	valve
					with sensor	with	ion	t	ectio
					for plug	sensor		seal	n
					connector	with 2 m
					(PNP	moduled
					version)	in cable
						(PNP
						version)
OMT EM Motors
Standard	Ø125 mm	Ø160 mm	Cyl. 40 mm	G 3/4	X		X	X	Yes	Yes	OMT EM
flange
	Ø5 in	Ø6.38	Cyl. 1.5 in	11/16 - 12			X	X	Yes	Yes	OMT EM
				UN
OMV EM Motors
Standard	Ø160 mm	Ø200 mm	Cyl. 50 mm	G 1	X		X	X	Yes	Yes	OMV EM
flange

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

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Technical Information

Orbital Motors with Speed Sensor

Code Numbers OMT EM and OMV EM

Code number

	Code	Displacements
	numbers
		80	100	125	160	200	250	315	400	500	630	800
	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

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.

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Technical Information

Orbital Motors with Speed Sensor

Technical Data OMT EM

Technical data for OMT EM

Type			OMT EM	OMT EM	OMT EM	OMT EM	OMT EM	OMT EM
Motor size			160	200	250	315	400	500
Geometric displacements	cm3		161.1	201.4	251.8	326.3	410.9	523.6
	[in3]		[9.83]	[12.29]	[15.37]	[19.91]	[25.07]	[31.95]
Max. speed	min-1	cont.	625	625	500	380	305	240
	rpm
		int.	780	750	600	460	365	285
Max torque	Nm	cont.	470	590	730	950	1080	1220
	[lbf•in]		[4160]	[5220]	[6460]	[8410]	[9560]	[10800]
		int.	560	710	880	1140	1260	1370
			[4960]	[6280]	[7790]	[10090]	[11150]	[12130]
Max. output	kW	cont.	26.5	33.5	33.5	33.5	30.0	26.5
	[hp]		[35.5]	[44.9]	[44.9]	[44.9]	[40.2]	[35.5]
		int.1)	32.0	40.0	40.0	40.0	35.0	30.0
			[42.9]	[53.6]	[53.6]	[53.6]	[46.9]	[40.2
Max. pressure drop	bar	cont.	200	200	200	200	180	160
	[psi]		[2900]	[2900]	[2900]	[2900]	[2610]	[2320]
		int.1)	240	240	240	240	210	180
			[3480]	[3480]	[3480]	[3480]	[3050]	[2610]
		peak2)	280	280	280	280	240	210
			[4060]	[4060]	[4060]	[4060]	[3480]	[3050]
Max. oil flow	l/min	cont.	100	125	125	125	125	125
	[US gal/min]		[26.4]	[33.0]	[33.0]	[33.0]	[33.0]	[33.0]
		int.1)	125	150	150	150	150	150
			[33.0]	[39.6]	[39.6]	[39.6]	[39.6]	[39.6]
Max. starting pressure	bar		10	10	10	10	10	10
with unloaded shaft	[psi]		[145]	[145]	[145]	[145]	[145]	[145]
Min starting torque	Nm	at max. press.	340	430	530	740	840	950
	[lbf•in]	drop cont.	[3010]	[3810]	[4690]	[6550]	[7430]	[8410]
		at max. press.	410	520	630	890	970	1060
		drop int.1)	[3630]	[4600]	[5580]	7880]	[8590]	[9380]
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.

Type		Max. inlet pressure	Max. return pressure with
			drain line
OMT EM	bar [psi]	210	140
	cont.	[3050]	[2030]
	bar [psi]	250	175
	int.1)	[3630]	[2540]
	bar [psi]	300	210
	peak 2)	[4350]	[3050]

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.

For further technical specifications please see technical information for OMT and OMV (BC152886483862)

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