Axial Piston Variable Displacement Pump AA11VO

Transcription

1 xial Piston Variable isplacement Pump 11VO / /60 eplaces: Open circuit izes eries 1 Nominal pressure 5100 psi (350 bar) Peak pressure 5800 psi (400 bar) Contents Ordering code / tandard program Technical data L Power control Pressure control H Hydraulic control, pilot pressure related EP Electrical control with proportional solenoid Unit dimensions size Unit dimensions size Unit dimensions size Unit dimensions size Unit dimensions size 130/ Unit dimensions size Unit dimensions size Through drive dimensions ummary of through drive assembly possibilites for 11V(L)O 56 Combination pumps 11VO + 11VO 56 wivel angle indicator 57 Male connectors for solenoids 58 Installation and commissioning 59 afety Instructions 60 Features Variable displacement axial piston pump of swashplate design for hydrostatic drives in open circuit hydraulic system esigned primarily for use in mobile applications The pump operates under self-priming conditions, with tank pressurization, or with an optional built-in charge pump (impeller) comprehensive range of control options is available matching any application requirement Power control option is externally adjustable, even when the pump is running The through drive is suitable for adding gear pumps and axial piston pumps up to the same, i.e. 100% through drive The output flow is proportional to the drive speed and infinitely variable between maximum and zero

2 2/60 Bosch exroth Corp. 11VO /08.06 Ordering Code / tandard Program xial piston unit washplate design, variable displacement, E version 11V Charge pump (impeller) without charge pump (no code) with charge pump L Operation Pump, open circuit ize isplacement V g max cm 3 /rev in 3 /rev Control device Power control L L with override cross-sensing negative L C L. C high pressure related negative L3 L3 pilot pressure related negative L1 L1 positive L2 L2 electrical 12V negative LE1 LE1 24V negative LE2 LE2 with pressure cut-off L... hydraulic 2-stage E L.E.. hydraulic remote controlled L... with load sensing L... electr. prop. override, 24V neg. 2 L...2 hydr. prop. override, negative 5 L...5 with stroke limiter negative p = 365 psi (25 bar) H1 L...H1 characteristic p = 145 psi (10 bar) H5 L...H5 positive p = 365 psi (25 bar) H2 L...H2 characteristic p = 145 psi (10 bar) H6 L...H6 positive characteristic U = 12 V U1 L...U1 U = 24 V U2 L...U2 Pressure control with load sensing remote controlled for parallel operation L L Hydraulic control p = 145 psi (10 bar) H1 H1 pilot pressure related (pos. charac.) p = 365 psi (25 bar)h2 H2 with pressure cut-off H. with pressure cut-off, remote controlled H. Electrical control U = 12 V EP1 EP1 with proportional solenoid (pos. characteristic) U = 24 V EP2 EP2 with pressure cut-off EP. with pressure cut-off, remote controlled EP. In case of controls with several additional functions, observe the order of the columns, only one option per column is possible (e.g. LCH2). The following combinations are not available for the power control: L2, L5, L..., L...2, L...5, L...EC and the combination L... in connection with the stroke limiters H1, H2, H5, H6, U1 and U2. = available = available on request = not available O

3 92 500/ VO Bosch exroth Corp. 3/60 xial piston unit Charge pump Operation ize Control device eries Index size size irection of rotation viewed on shaft end clockwise counter-clockwise L eals NB (Buna-N), shaft seal in FKM (fluorocarbon) 11V O / 1 N 62 6 ) haft end (perm. input torques see page 7) plined shaft NI B92.1a 1976 for single pump for combination pump 1 ) 1 ) 1 ) T Cylindrical shaft with key IN 6885 P Mounting flange E J744 2-hole C E J744 4-hole E J617 2 ) (E 3) ervice line ports Pressure and suction port on opposite sides (E), 62 with UNC fastening threads Through drive (see page 56 for attachments) Flange E J744 3 ) plined shaft coupler N () 5/8in 96/32P () K01 3/4in 116/32P (-B) K (B) 7/8in 136/32P (B) K02 1in 156/32P (B-B) K (C) 4 ) 1 1/4in 142/24P (C) K07 1 1/2in 172/24P (C-C) K () 1 1/4in 142/24P (C) K86 1 3/4in 13T 8/16P () K (E) 1 3/4in 13T 8/16P () K72 wivel angle indicator (page 57) without (no code) with optical swivel angle indicator V with electrical swivel angle sensor Male connectors for solenoids 5 ) (page 58) EUTCH T04-2P-EP04 (2-pole), molded to the solenoid coil P Hirschmann according to IN EN H (not for new projects) 1 ) -shaft suitable for combination pump! 2 ) To fit the flywheel housing of the combustion engine 3 ) 2 2-hole; 4 4-hole 4 ) ize 190 and 260 with hole flange 5 ) Male connector without bidirectional surpressor diode 6 ) no code = standard version, = special version, K = combination with mounting part or mounting pump 1 N

4 4/60 Bosch exroth Corp. 11VO /08.06 Technical ata Hydraulic fluid For detailed information on the choice of hydraulic fluids and application conditions, please see our catalog pages E (mineral oil), E (environmentally acceptable hydraulic fluids) and E (HF-hydraulic fluids) prior to configuration. The variable displacement pump 11VO is unsuitable for operation with HF, HFB and HFC. When using HF- or environmentally acceptable (Eco-evaluated) hydraulic fluids possible restrictions in the technical data may have to be taken in consideration. If required please consult with our technical support department. The hydraulic fluide type used should be stated on the order. Operating viscosity range We recommend you to choose the operating viscosity (at operating temperature) in the optimum range for efficiency and useful life of ν opt = opt. operating viscosity U ( mm 2 /s) related to the tank temperature (open circuit). Limit viscosity range The following values apply for borderline conditions: ν min = 42 U (5 mm 2 /s) temporary (t < 3 min) at max. perm. temperature of t max = 240 F (+115 C). Note that the max. hydraulic fluid temperature of 240 F (115 C) may not be exceeded even locally (e.g. in the bearing area). ν max = 7400 U (1600 mm 2 /s) temporary (t < 3 min) at cold start (p 435 psi (30 bar), n 1000 min -1, t min = -40 F (-40 C)). Only for starting up without load. The optimum operating viscosity must be reached within about 15 minutes. pecial measures are necessary in the temperature range from -40 F (-40 C) to -13 F (-25 C), please ask. For detailed information about use at low temperatures, see E B. election diagram Viscosity v U (mm2/s) (1600) (1000) (600) (400) (200) (100) (60) (40) (20) (10) V 22 V 32 V 46 Explanation of selection of the hydraulic fluid In order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuit) in relation to the ambient temperature. The hydraulic fluid should be selected so that the operating viscosity is in the optimum range (ν opt ) in the operating temperature range, see selection diagram, shaded area. We recomm-end you to choose the respective higher viscosity class. Example: t an ambient temperature of F ( C) an operating temperature of 140 F (60 C) is set in the tank. In the optimum operating viscosity range (ν opt ; shaded area) this corresponds to the viscosity classes V 46 or V 68; to be selected: V 68. N.B.: The leakage oil temperature, influenced by pressure and speed, is always above the tank temperature. The temperature may not be higher than 240 F (115 C) at any point in the machine. If the above conditions cannot be satisfied in the case of extreme operating parameters or high ambient temperatures, please ask. V 100 V 68 Filtration The finer the filtration the better the cleanliness class of hydraulic fluid reached, the longer the life of the axial piston unit. To ensure functional reliability of the axial piston unit at least cleanliness class 20/18/15 in accordance with IO 4406 is necessary for the hydraulic fluid. t very high hydraulic fluid temperatures 195 F to max. 240 F (90 C to max. 115 C) at least cleanliness class 19/17/14 in accordance with IO 4406 is required. If the above classes cannot be observed, please consult with product support (1600) 4600 (1000) 170 (36) 80 (16) 60 (10) v opt. 40 (5) 42 (5) (-40) (-20) (0) (20) (40) (60) (80) (100) (115) (-30) (-10) (10) (30) (50) (70) (90) (110) Temperature t in F ( C)

5 92 500/ VO Bosch exroth Corp. 5/60 Technical ata Operating pressure range Inlet bsolute pressure at port (suction port) Version without charge pump p abs min 12 psi (0.8 bar) p abs max 435 psi (30 bar) If the pressure is > 75 psi (5 bar), please ask. Version with charge pump p abs min 8.5 psi (0.6 bar) p abs max 29 psi (2 bar) Maximum permissible speed (speed limit) Permissible speed by increasing the inlet pressure p abs at the suction port or at V g V g max peed n / nmax 1,2 1,1 1,0 p abs = 14.5 psi (1bar) p abs = 22 psi (1.5 bar) Case drain pressure The case drain pressure at the ports and may be a maximum 17.5 psi (1.2 bar) higher than the inlet pressure at the port but not higher than p L abs. max 29 psi (2 bar). n unrestricted, full size case drain line directly to tank is required. Temperature range of the shaft seal The FKM shaft seal is permissible for housing temperatures of -13 F to 240 F (-25 C to +115 C). Note: For applications below -13 F (-25 C), an NB shaft seal is necessary as a special version (permissible temperature range: -40 F to 194 F (-40 C to +90 C)). tate NB shaft seal in clear text in the order. Flushing the housing If a variable displacement pump with control device EP, H, or stroke limiter (H., U.) is operated over a long period (t > 10 min) with flow zero or operating pressure 215 psi (< 15 bar), flushing of the housing via ports "T1", "T2" or "" is necessary. size q V flush gpm Outlet 0,9 0,8 0,9 1,0 isplacement V g / V g max (L/min) The housing flushing is unnecessary in versions with charge pump (11VLO), since a part of the charge flow is directed to the housing. Higher case drain flow beyond volumetric rotary group losses and control flow may be noticed. Pressure at port or B Nominal pressure p N 5100 psi (350 bar) Peak pressure p max 5800 psi (400 bar) Minimum operating pressure minimum operating pressure p B min is required in the pump service line depending on the speed, the swivel angle and the displacement (see diagram). Charge pump (impeller) The charge pump is a circulating pump by which the 11VLO (size ) is filled and therefore can be operated at higher speeds. This also simplifies cold starting at low temperatures and high viscosity of the hydraulic fluid. Tank charging is therefore unnecessary in most cases. tank pressurization of max. 30 psi (2 bar) is permissible with the charge pump. Minimum operating pressure pb min in psi (bar) 215 (15) 145 (10) 72.5 (5) 0,5 0,6 0,7 0,8 0,9 1,0 V g /2 V g max V g < V g /2 n /nmax M

6 6/60 Bosch exroth Corp. 11VO /08.06 Technical ata Value table (theoretical values, without efficiencies and tolerances; values rounded) ize 11VO isplacement peed maximum at V 1 g max ) 11VLO (with charge pump) V g max In 3 /rev cm 3 /rev V g min In 3 /rev n max rpm ) ) ) ) maximum at V g V g max 3 ) n max1 rpm Flow 4 ) gpm at n max and V g max q V max L/min Power at q V max hp and p = 5100 psi (350 bar) P max kw Torque at V g max lb-ft and p = 5100 psi (350 bar) T max Nm Mass moment of inertia lbs-ft J around drive axis kgm otational vibration 4 ) ngular acceleration, max. α rad/s peed variation, max. n rpm Frequency limit f limit Hz otary stiffness haft end lb-ft/rad Nm/rad haft end T lb-ft/rad Nm/rad haft end P lb-ft/rad Nm/rad Filling volume gal L Weight (approx.) lbs m kg ) The values apply at absolute pressure (p abs ) 14,5 psi (1 bar) at the suction port and mineral hydraulic fluid. 2 ) The values apply at absolute pressure (p abs ) of at least 12 psi (0.8 bar) at the suction port and mineral hydraulic fluid. 3 ) The values apply at V g V g max or in case of an increase in the inlet pressure p abs at the suction port (see diagram page 5) 4 ) The permissible angular acceleration or speed variation only applies for single pumps, not for combi pumps. The load on connection parts (e.g. through drive) must be taken into account additionally. t f < f limit the n specified in the table is permissible. t f > f limit the permissible angular acceleration α specified in the table limits the value of the speed variation: n perm = 3.04 α/f. Calculation of size ( V g n η v L/min) ( V g p ) V g n η v Flow q v = gpm q v = V g p Torque T = lb-ft 24 π η mh T = 20 π η mh Nm ( ) 2 π T n q v p 2 π T n q v p Power P = = hp 1714 η t P = = 600 η t kw V g = displacement per revolution in in 3 (cm 3 ) p = differential pressure in psi (bar) n = speed in rpm η v = volumetric efficiency η mh = mechanical-hydraulic efficiency η t = overall efficiency

7 92 500/ VO Bosch exroth Corp. 7/60 Technical ata Permissible radial and axial loading on the drive shaft ize adial force, max. lbf F at distance (from shaft collar) q max N F q a,b,c a in mm lbf F q max N b in mm lbf F q max N c in mm xial force, max. - F lbf ax + ± F ax max N Permissible input and through drive torques ize Torque T max lb-ft at V g max and p = 5100 psi (350 bar) 1 ) Nm Input torque, max. 2 ) T E perm. lb-ft at shaft end Nm NI B92.1a-1976 (E J744) in 1 1 1/4 1 1/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 at shaft end T T E perm. lb-ft NI B92.1a-1976 (E J744) Nm in 1 1/4 1 3/8 1 3/ /4 at shaft end P T E perm. lb-ft keyed per IN 6885 Nm Through drive torque, max. 3 ) 1 ) Efficiency not taken into account 2 ) For side load-free drive shafts 3 ) Observe max. input torque for shaft! I in I mm (32) (35) (40) (45) (50) (50) (55) (60) T perm. lb-ft Nm istribution of torques T E 1. Pumpe 1st Pump 2nd pump 2. Pumpe T

8 8/60 Bosch exroth Corp. 11VO /08.06 L Power Control The power control regulates the displacement of the pump depending on the operating pressure so that a given drive power is not exceeded at constant drive speed. ize : L p B V g = constant p B = operating pressure V g = displacement M The precise control with a hyperbolic control characteristic, provides an optimum utilization of available power. The operating pressure acts on a rocker via a piston. n externally adjustable spring force counteracts this, it determines the power setting. If the operating pressure exceeds the set spring force, the control valve is actuated by the rocker, the pump swivels back (direction V g min ). The lever length at the rocker is shortened and the operating pressure can increase at the same rate as the displacement decreases without the drive powers being exceeded (p B V g = constant). The output power (characteristic) is influenced by the efficiency of the pump. ize : L M tate in clear text in the order: drive power P in hp (kw) drive speed n in rpm max. flow q V max in gpm (l/min) fter clarifying the details a power diagram can be created by our computer. Operating pressure pb in psi (bar) 4650 psi (320 bar) setting range start of control 725 psi (50 bar) V g min isplacement V g max

9 92 500/ VO Bosch exroth Corp. 9/60 L Power Control LC Override with cross-sensing Cross sensing control is a summation power control system, whereby the total power, of both the 11VO and of a same size 11VO power controlled pump mounted onto the through drive, are kept constant. If a pump is operating at pressures below the start of the control curve setting, then the surplus power not required, in a critical case up to 100%, becomes available to the other pump. Total power is thus divided between two systems as demand requires. ny power being limited by means of pressure cut-off or other override functions is not taken into account. L3 High pressure related override The high pressure related power override is a total power control in which the power control setting is piloted by the load pressure of an attached fixed displacement pump (port ). s a result the 11VO can be set to 100 % of the total drive power. The power setting of the 11VO is reduced proportional to the load-dependent rise in operating pressure of the fixed displacement pump. The fixed displacement pump has priority in the total power setting. The measuring area of the power reduction pilot piston is designed as a function of the size of the fixed displacement pump. Half side cross-sensing function When using the LC control on the 1st pump (11VO) and a power-controlled pump without cross-sensing attached to the through drive, the power required for the 2nd pump is deducted from the setting of the 1st pump. The 2nd pump has priority in the total power setting. ize : L3 p H M The size and start of control of the power control of the 2nd pump must be specified for rating the control of the 1st pump. ize : LC p H M ize : L3 p H L M ize : LC M

10 10/60 Bosch exroth Corp. 11VO /08.06 L Power Control L1/2 Pilot pressure related override This power control works by overriding the control setting with an external pilot pressure signal. This pilot pressure acts on the adjustment spring of the power regulator via port. The mechanically adjusted basic setting can be hydraulically adjusted by means of different pilot pressure settings, enabling different power mode settings. If the pilot pressure signal is then adjusted by means of a external power limiting control, the total hydraulic power consumption of all users can be adapted to the available drive power from the engine. The pilot pressure used for power control is generated by an external control element that is not a component part of the 11VO (e.g. see also data sheet E 95310, Electronic Load Limiting Control, LLC). L1 Negative power override Power control with negative override, L1: the force resulting from the pilot pressure is acting against the mechanical adjustment spring of the power control. Increasing the pilot pressure reduces the power setting. L2 Positive power override Power control with positive override, L2: the force resulting from the pilot pressure is additive the mechanical adjustment spring of the power control. n increase in pilot pressure increases the power output. ize : L1 ize : L2 M M ize : L1 ize : L2 M M

11 92 500/ VO Bosch exroth Corp. 11/60 L Power Control LE1/2 Electrical override (negative) ize : LE1/2 Contrary to hydraulic power control override, the basic power setting is reduced by an electrical pilot current applied to a proportional solenoid. The resulting force is acting against the mechanical power control adjustment spring. M Increase in current = decrease in power If the pilot current signal is adjusted by a load limiting control (e.g. LLC control E 95310) the power consumption of all mechanical and hydraulic actuators is decreasing the 11VO power setting to match the remaining available power from the engine. 12V (LE1) or 24V (LE2) C supply is required for the control of the proportion solenoid. PWM signal is recommended for more acurate control. Technical data of solenoids ize : LE1/2 LE1 LE2 Voltage 12 V C (±20 %) 24 V C (±20 %) Control current start of control 400 m 200 m M end of control 1200 m 600 m Limiting current Nominal resistance (at 68 F / 20 C) 5.5 Ω 22.7 Ω ither frequency 100 Hz 100 Hz uty cycle 100 % 100% Type of protection dependent on connector version, see page 58 Overview of power overrides Effect of power overrides at rising pressure or current Operating pressure pb in psi (bar) 725 (50) min p H I p t L2 LC L3 LE1/2 L1 V g min isplacement V g max

12 12/60 Bosch exroth Corp. 11VO /08.06 L Power Control L Power control with pressure cut-off ize : L Pressure cut-of is a pressure control that adjusts the pump displacement back towards V g min when a preset pressure value is reached. This function overrides the power control, i.e. below the preset pressure value, the power function is effective. M The pressure cut-off function is integrated into the pump control module and is preset to a specified value at the factory. etting range from 725 to 5100 psi (50 to 350 bar) Characteristic: L Operating pressure pb in psi (bar) 5100 (350) setting range 725 (50) max min ize : LE M V g min isplacement LE Power control with pressure cut-off, 2-stage V g max By connecting an external pilot pressure to port, the basic value of the pressure cut-off can be increased by psi ( bar) and a 2nd pressure setting implemented. This value is usually above the primary pressure relief valve setting and therefore disables the pressure cut-off function. The pressure signal at port must be between 290 and 725 psi (20 and 50 bar). L power control with pressure cut-off, hydraulically remote controlled ee page 20 for description and characteristic (pressure control remote controlled, ) Characteristic: LE Operating pressure pb in psi (bar) 5650 (390) 5350 (370) 5100 (350) 4650 (320) increased pressure cut-off with tolerance range disable pressure cut-off primary pressure relief valve basic value pressure cut-off V g min isplacement V g max

13 92 500/ VO Bosch exroth Corp. 13/60 L Power Control L Power control with pressure cut-off and load sensing ize : L The load-sensing control is a flow control option that operates as a function of the load pressure to regulate the pump displacement to match the actuator flow requirement. (1) The flow depends here on the cross section of the external sensing orifice (1) fitted between the pump outlet and the actuator. The flow is independent of the load pressure below the power curve and the pressure cut-off setting and within the control range of the pump. M The sensing orifice is usually a separately arranged load sensing directional valve (control block). The position of the directional valve piston determines the opening cross section of the sensing orifice and thus the flow of the pump. The load-sensing control compares pressure before and after the sensing orifice and maintains the pressure drop across the orifice - and therefore the pump flow - constant as a function of the orifice size. If the differential pressure p increases, the pump is swivelled back towards V g min and, if the p decreases the pump is swivelling out towards V g max until the pressure drop across the sensing orifice in the valve is restored. ize : L (1) p orifice = p pump p actuator The setting range for p is between 200 psi and 360 psi (14 bar and 25 bar). The standard differential pressure setting is 260 psi (18 bar). (Please state in clear text when ordering). M The stand-by pressure in zero stroke operation (sensing orifice plugged) is slightly above the p setting. In a standard L system the pressure cut-off is integrated in the pump control. In a LUV (flow sharing) system the pressure cut-off is integrated in the LUV control block. (1) The sensing orifice ( control block) is not included in the pump supply. Characteristic: L Operating pressure pb in psi (bar) 5100 (350) 725 (50) V g min max min isplacement V g max

14 14/60 Bosch exroth Corp. 11VO /08.06 L Power Control L2 Power control with load sensing, electrically override This control option adds a proportional solenoid to override to the mechanically set load-sensing pressure. The pressure differential change is proportional to the solenoid current. Increasing current = smaller p-setting ee following characteristic for details (example). This permits a change in flow with the same sensing orifice size, to improve control resolution of the control block. Please consult us when applying. For solenoid specification, see page 11 (LE2) L5 Power control with load sensing, hydraulically override This control option adds an external proportional pilot pressure signal (to port ) to override the mechanically set load-sensing pressure. Increasing pilot pressure = smaller p-setting ee following characteristic for details (example). This permits a change in flow with the same sensing orifice size, to improve control resolution of the control block. Please consult us when applying. Characteristic: L2 360 (25) 260 (18) 200 (14) 145 (10) 72.5 (5) pl in psi (bar) Control current I in m (at 24 V) Characteristic: L5 365 (25) 260 (18) 200 (14) 145 (10) 72.5 (5) pl in psi (bar) (5) 145 (10) 215 (15) 290 (20) 365 (25) Pilot pressure p z in psi bar 435 (30) ize : L2 ize : L5 M M ize : L2 ize : L5 M M

15 92 500/ VO Bosch exroth Corp. 15/60 L Power Control L... Power control with stroke limiter The stroke limiter can be used to vary or limit the displacement of the pump continuously over the whole control range. The displacement is set in LH with the pilot pressure p t (max. 580 psi (40 bar)) applied to port or in LU by the control current applied to the proportional solenoid. C current (PWM) of 12V (U1) or 24V (U2) is required to control the proportional solenoid. The power control overrides the stoke limiter control, i.e. below the hyperbolic power characteristic, the displacement is controlled, by the control current or pilot pressure. When exceeding the power characteristic with a set flow or load pressure, the power control overrides and reduces the displacement following the hyperbolic char acteristic. To permit operation of the pump displacement control from its starting position V g max to V g min, a minimum control pressure of 435 psi (30 bar) is required for the electrical stroke limiter LU1/2 and the hydraulic stroke limiter. The required control oil is taken either from the load pressure, or from the externally applied control pressure at the port. To ensure functioning of the stroke limiter at low operating pressure as well, the port must be supplied with external control pressure of approx. 435 psi (30 bar). Note: If no external control pressure is connected at, the shuttle valve must be removed. LH1/5 Hydraulic stroke limiter (negative characteristic) ize : LH1/5 Control from V g max to V g min With increasing pilot pressure the pump swivels to a smaller displacement. tart of control (at V g max ), can be set from psi (4 10 bar) M Please state start of control value, when ordering. tarting position without control signal (pilot pressure): V g max Characteristic: H1 Increase in pilot pressure (V g max V g min )_ p = 365 psi (25 bar) Pilot pressure pt in psi (bar) etting range 510 (35) 435 (30) 365 (25) 290 (20) 215 (15) 145 (10) 58 (4) V g min 0 0,5 1,0 isplacement V g max ize : LH1/5 M Characteristic: H5 Increase in pilot pressure (V g max V g min )_ p = 145 psi (10 bar) Pilot pressure pt in psi (bar) etting range 290 (20) 215 (15) 145 (10) 58 (4) V g min 0 0,5 1,0 isplacement V g max

16 16/60 Bosch exroth Corp. 11VO /08.06 L Power Control LH2/6 Hydraulic stroke limiter (positive characteristic) ize : LH2/6 Control from V g min to V g max With increasing pilot pressure the pump swivels to a higher displacement. tart of control (at V g min ), can be set from psi (4 10 bar) M Please state start of control value, when ordering. tarting position without control signal (pilot pressure): at operating pressure and external control pressure < 435 psi (30 bar): V g max at operating pressure or external control pressure > 435 psi (30 bar): V g min Characteristic: H2 Increase in pilot pressure (V g min V g max ) p = 365 psi (25 bar) Pilot pressure pt in psi (bar) etting range 510 (35) 435 (30) 365 (25) 290 (20) 215 (15) 145 (10) 58 (4) 0 0,5 1,0 isplacement V g min V g max ize : LH2/6 M Characteristic: H6 Increase in pilot pressure (V g min V g max ) p = 145 psi (10 bar) Pilot pressure pt in psi (bar) etting range 290 (20) 215 (15) 145 (10) 58 (4) 0 0,5 1,0 isplacement V g min V g max

17 92 500/ VO Bosch exroth Corp. 17/60 L Power Control LU1/2 Electrical stroke limiter (positive characteristic) ize : LU1/2 Control from V g min to V g max With increasing control current the pump swivels to a higher displacement. Technical data of solenoids M LU1 LU2 Voltage 12 V C (±20 %) 24 V C (±20 %) Control current tart of control at V g min 400 m 200 m End of control at V g max 1200 m 600 m Limiting current Nominal resistance (at 68 F / 20 C) 5.5 Ω 22.7 Ω ither frequency 100 Hz 100 Hz ize : LU1/2 uty cycle 100 % 100% Type of protection dependent on connector version, see page 58 tarting position without control signal (control current): at operating pressure and external control pressure < 435 psi (30 bar): V g max at operating pressure or external control pressure > 435 psi (30 bar): V g min M The following electronic control devices are available for controlling the proportional solenoid: Proportional analog amplifier PV (see E 95023) igital electronic control unit C (see E 95200) Characteristic: LU1/ Control current I in m LU1 LU ,5 1,0 isplacement V g min V g max

18 18/60 Bosch exroth Corp. 11VO /08.06 Pressure Control Pressure control ize : The pressure control keeps the pressure in a hydraulic system constant within its control range even under varying flow conditions. The variable displacement pump only moves as much hydraulic fluid as is required by the actuators. If the operating pressure exceeds the setpoint set at the integral pressure control valve, the pump displacement is automatically swivelled back until the pressure deviation is corrected. M In zero pressure non-running condition, the pump is swivelled to its starting position (V g max ) by means of the control spring. etting range from 725 to 5100 psi (50 to 350 bar). Characteristic: 5100 (350) max ize : Operating pressure pb in psi (bar) etting range 725 (50) 0 min Flow q v in gpm (L/min) max. 145 psi (10 bar) M

19 92 500/ VO Bosch exroth Corp. 19/60 Pressure Control Pressure control with load sensing ize : The load-sensing control is a flow control option that operates as a function of the load pressure to regulate the pump displacement to match the actuator flow requirement. (1) The flow depends here on the cross section of the external sensing orifice (1) fitted between the pump outlet and the actuator. The flow is independent of the load pressure below the pressure cut-off setting and within the control range of the pump. M The sensing orifice is usually a separately arranged load sensing directional valve (control block). The position of the directional valve piston determines the opening cross section of the sensing orifice and thus the flow of the pump. The load-sensing control compares pressure before and after the sensing orifice and maintains the pressure drop across the orifice - and therefore the pump flow - constant as a function of the orifice size. ize : If the differential pressure p increases, the pump is swivelled back towards V g min and, if the p decreases the pump is swivelling out towards V g max until the pressure drop across the sensing orifice in the valve is restored. (1) p orifice = p pump p actuator The setting range for p is between 200 psi and 360 psi (14 bar and 25 bar). M The standard differential pressure setting is 260 psi (18 bar). (Please state in clear text when ordering). The stand-by pressure in zero stroke operation (sensing orifice plugged) is slightly above the p setting. (1) The sensing orifice ( control block) is not included in the pump supply. Characteristic: 5100 (350) max Operating pressure pb in psi (bar) 725 (50) 0 min Flow q v in gpm (L/min) max. 145 psi (10 bar)

20 20/60 Bosch exroth Corp. 11VO /08.06 Pressure Control Pressure control, remote controlled The remote control pressure cut-off regulator permits the adjustment of the pressure setting by a remotely installed pressure relief valve (1). Pilot flow for this valve is provide by a fixed orifice in the control module. The pressure drop across this relief valve is additive to the spring bias of the control spool. ize : (2) max. 5m max. 16ft (5m) (1) etting range from 725 to 5100 psi (50 to 350 bar). In addition the pump can be unloaded into a standby pressure condition by an externally installed 2/2-way directional valve (2). M Both functions can be used individually or in combination (see circuit diagram). The external valves are not included in the pump supply. s a separate pressure relief valve (1) we recommend: - BH 6 (manual control), see 25402) Characteristic: ize : Operating pressure pb in psi (bar) 5100 (350) etting range 725 (50) 0 max min Flow q v in gpm (L/min) max. 145 psi (10 bar) max.5m M Note: The remote controlled pressure cut-off is also possible in combination with L, H and EP.

21 92 500/ VO Bosch exroth Corp. 21/60 Pressure Control L Pressure control for parallel operation The pressure control L is suitable for pressure control of several axial piston pumps 11VO in parallel operation pumping into a common pressure header. The parallel pressure control has a pressure rise characteristic of approx. 215 psi (15 bar) from q v max to q v min. The pump regulates therefore to a pressure dependent displacement position. This results in stable control behavior, without the need of "staging" the individual pump compensators. With the externally installed pressure relief valve (1) the nominal pressure setting of all pumps connected to the system is adjusted to the same value. etting range from 725 to 5100 psi (50 to 350 bar). Each pump can be individually unloaded from the system by an separately installed 3/2-way directional valve (2). The check valves (3) in the service line (port ) or control line (port ) must be provided generally. The external valves are not included in the pump supply. s a separate pressure relief valve (1) we recommend: BH 6 (manual control) see E The size of the remote relief valve depends on the number of pumps installed in parallel, and has to be able to handle the sum of the pilot flows provided by each pump control. ize : L ize : L (2) (2) (1) (3) (3) M (1) M (3) (3) M M Characteristic: L Operating pressure pb in psi (bar) etting range 5100 (350) 4850 (335) 2400 (165) 2150 (150) 945 (65) 725 (50) 0 max min Flow q v in gpm (L/min) max. 215 psi (15 bar) M

22 22/60 Bosch exroth Corp. 11VO /08.06 H Hydraulic Control, Pilot Pressure elated With the pilot pressure related control the pump displacement is adjusted in proportion to the pilot pressure applied to port. Maximum permissible pilot pressure p t max = 580 psi (40 bar) ize : H Control from V g min to V g max. With increasing pilot pressure the pump swivels to a higher displacement. M tart of control (at V g min ), settable from psi (4-10 bar) tate start of control in clear text in the order. tarting position without control signal (pilot pressure): at operating pressure and external control pressure < 435 psi (30 bar): V g max at operating pressure or external control pressure > 435 psi (30 bar): V g min control pressure of 435 psi (30 bar) is required to swivel the pump from its starting position V g max to V g min. The required control pressure is taken either from the load pressure, or from the externally applied control pressure at the port. To ensure the control even at low operating pressure < 435 psi (30 bar) the port must be supplied with an external control pressure of approx. 435 psi (30 bar). Note: If no external control pressure is required at port, the parts of the shuttle valve are to be removed from the pump and port must be plugged. Characteristic: H1 Increase in pilot pressure V g min to V g max p = 145 psi (10 bar) Pilot pressure pt in psi (bar) etting range 290 (20) 215 (15) 145 (10) 58 (4) V g min 0 0,5 1,0 isplacement V g max Characteristic: H2 Increase in pilot pressure V g min to V g max p = 365 psi (25 bar) Pilot pressure pt in psi (bar) etting range 510 (35) 435 (30) 365 (25) 290 (20) 215 (15) 145 (10) 58 (4) 0 0,5 1,0 isplacement V g min V g max

23 92 500/ VO Bosch exroth Corp. 23/60 H Hydraulic Control, Pilot Pressure elated H. Hydraulic control with pressure cut-off ize : H. The pressure cut-off corresponds to a pressure control which adjusts the pump displacement back to V g min, when the pressure setting is reached. This function overrides the H control, i.e. the pilot pressure related displacement control is functional below the pressure setting. M The valve for the pressure cut-off is integrated in the control housing and is set to a fixed specified pressure value at the factory. etting range from 725 to 5100 psi (50 to 350 bar) Characteristic: Pressure cut-off 5100 (350) max ize : H. Operating pressure pb in psi (bar) etting range 725 (50) 0 min Flow q v in gpm (L/min) max. 145 psi (10 bar) M

24 24/60 Bosch exroth Corp. 11VO /08.06 EP Electrical Control With Proportional olenoid With the electrical control with proportional solenoid, the pump displacement is adjusted proportionally to the solenoid current, resulting in a magnetic control force, acting directly onto the control spool that pilots the pump control piston. 12V ( EP1) or 24 V (EP2) C supply is required to operate the proportional solenoid. Control from V g min to V g max With increasing control current the pump swivels to a higher displacement. tarting position without control signal (control current): at operating pressure and external control pressure < 435 psi (30 bar): V g max at operating pressure or external control pressure > 435 psi (30 bar): V g min Characteristic: EP1/2 Control current I in m EP1 EP2 control pressure of 435 psi (30 bar) is required to swivel the pump from its starting position V g max to V g min. The required control pressure is taken either from the load pressure, or from the externally applied control pressure at the port. To ensure the control even at low operating pressure < 435 psi (30 bar) the port must be supplied with a external control pressure of approx. 435 psi (30 bar). Note: If no external control pressure is required at port, the parts of the shuttle valve are to be removed from the pump and port must be plugged. Note: Install pump with EP control in the oil tank only when using mineral hydraulic oils and an oil temperature in the tank of max. 180 F (80 C). The following electronic control devices are available for controlling the proportional solenoid: Proportional analog amplifier PV (see E 95023) igital electronic control unit C (see E 95200) ize : EP 0 0,5 1,0 isplacement V g min ize : EP V g max M Technical data of solenoids M EP1 EP2 Voltage 12 V C (±20 %) 24 V C (±20 %) Control current tart of control at V g m 200 m End of control at V g max 1200 m 600 m Limiting current Nominal resistance (at 68 F / 20 C) 5.5 Ω 22.7 Ω ither frequency 100 Hz 100 Hz uty cycle 100 % 100% Type of protection dependent on connector version, see page 58

25 92 500/ VO Bosch exroth Corp. 25/60 EP Electrical Control With Proportional olenoid EP. Electrical control with pressure cut-off The pressure cut-off corresponds to a pressure control which adjusts the pump displacement back to V g min, when the pressure setting is reached. This function overrides the EP control, i.e. the control current related displacement control is functional below the pressure setting. The valve for the pressure cut-off is integrated in the control housing and is set to a fixed specified pressure value at the factory. etting range from 725 to 5100 psi (50 to 350 bar) ize : EP. M Characteristic: Pressure cut-off 5100 (350) max ize : EP. Operating pressure pb in psi (bar) etting range 725 (50) 0 min Flow q v in gpm (L/min) max. 145 psi (10 bar) M

26 26/60 Bosch exroth Corp. 11VO /08.06 Unit imensions, ize 40 Before finalizing your design, please request a certified drawing. imensions in inches and (millimeters). LC: Power control L with pressure cut-off, cross sensing control C and load sensing control 9.76 (248) 7.20 (183) 4.84 (123) 4.80 (122) *) View clockwise rotation (counter-clockwise rotation) 0.59 (15) 2.91 (74) M 0.38 (9.7) I4.00 (ø101.6) Flange E J (B) (1.11) (111) C W L 0.79 (20) *) 1.54 (39) 2.95 (75) 4.06 (103) 5.75 (146) 4.33 (110) () etail 0.55 (14) () 4.72 (120) (100) 0.83 (21) 2.95 (75) 8.86 (225) V M 5.75 (146) 6.97 (177) etail W etail V 1.97 (50) 3.06 (77.8) 0.75 (19) 2.00 (50.8) 1.69 (42.9) 0.94 (23.8) * ) Center of gravity

27 92 500/ VO Bosch exroth Corp. 27/60 Unit imensions, ize 40 haft ends Before finalizing your design, please request a certified drawing. imensions in inches and (millimeters). plined shaft 1 in 156/32P 2 ) (E J (B-B)) I3.17 (ø80.5) 3/8-16UNC-2B 0.87 (22) 1.50 (38) 1.18 (30) 0.30 (7.5) 1.81 (46) I1.57 (ø40) T plined shaft 1 1/4 in 142/24P 2 ) (E J (C)) I3.17 (ø80.5) 7/16-14UNC-2B 1.10 (28) 1.89 (48) 1.57 (40) 0.37 (9.5) 2.20 (56) I1.57 (ø40) P Cyl. shaft with key IN x8x56 (mm) I3.17 (ø80.5) 0.75 (19) M12x ) 2.28 (58) 0.30 (7.5) 0.87 (22) 2.60 (66) I1.26 (ø32) I1.57 (ø40) Ports Tightening torque, max. ervice ports (high pressure series) E J518 3/4 in Fastening thread IO 68 3/8 in - 16 UNC-2B; 0.59 (15) deep see safety instructions uction port (standard series) E J518 2 in Fastening thread IO 68 1/2 in - 13 UNC-2B; 0.79 (20) deep see safety instructions, Bleeding, tank IO /8 in - 14 UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) Bleeding, oil drain IO /8 in - 14 UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) Measuring position, positioning chamber IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) M Measuring position, service port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) Pilot pressure port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with load sensing () and remote controlled pressure cut-off () Pilot pressure port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot pressure port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with cross sensing (C) and power override (L3, L1) Port for control pressure (controller) IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with stroke limiter (H.., U2), H and EP with E connector fitting male JIC-6 (otherwise port plugged) 1 ) Centering bore in accordance with IN ) NI B92.1a-1976, pressure angle 30, flat root side fit, tolerance class 5

28 28/60 Bosch exroth Corp. 11VO /08.06 Unit imensions, ize 40 LH1/LH5: Power control with pressure cut-off and hydraulic stroke limiter (negative characteristic) 0.22 (5.5) 2.28 (58) 9.76 (248) 8.11 (206) Before finalizing your design, please request a certified drawing. imensions in inches and (millimeters). LH2/LH6: Power control with pressure cut-off and hydraulic stroke limiter (positive characteristic) 0.85 (21.5) 9.76 (248) 8.11 (206) 2.36 (60) 5.16 (131) 0.83 (21) H1/5 L 4.17 (106) 6.02 (153) 3.07 (78) 5.16 (131) 0.83 (21) H2/6 L (106) (78) 6.02 (153) LU1/LU2: Power control with pressure cut-off and electrical stroke limiter (positive characteristic) 1.14 (29) 9.76 (248) 8.11 (206) 4.17 (106) 6.02 (153) L3: Power control with high pressure related override, pressure cut-off and load sensing control 2.05 (52) (290) 8.98 (228) 5.51 (140) U1/2 L 3.07 (78) 4.37 (111) L (21) 4.33 (110) L1E: Power control with pilot pressure related override (negative) and 2-stage pressure cut-off 4.23 (107.5) 1.38 (35) 2.78 (70.5) 9.76 (248) 5.16 (131) L2E: Power control with pilot pressure related override (positive) and 2-stage pressure cut-off 2.20 (56) 0.83 (21) E L (115)

29 92 500/ VO Bosch exroth Corp. 29/60 Unit imensions, ize 40 H1/H2: Hydraulic control, pilot pressure related with pressure cut-off 0.83 (21) 0.91 (23) 8.19 (208) 8.11 (206) 2.44 (62) H1/ (106) (78) 5.28 (134) Before finalizing your design, please request a certified drawing. imensions in inches and (millimeters). EP1/EP2: Electrical control with proportional solenoid and pressure cut-off 1.30 (33) 8.19 (208) 8.11 (206) EP1/ (106) 5.93 (150.5) 3.07 (78) /: Pressure control with load sensing control Pressure control remote controlled L: Pressure control for parallel operation 2.05 (52) 8.23 (209) 8.33 (211.5) 0.12 (3) 4.37 (111) / 4.33 (110) 5.28 (134) 2.95 (75) 2.91 (74) L 3.19 (81) 5.31 (135) LE1/LE2: Power control with electrical override (negative) and load sensing control 1.00 (25.5) 9.76 (248) LE22/LE15/LE25: Power control with electrical override (negative) and load sensing control, override 4.37 (111) LE1/ (110) 5.57 (141.5)

30 30/60 Bosch exroth Corp. 11VO /08.06 Unit imensions, ize 60 Before finalizing your design, please request a certified drawing. imensions in inches and (millimeters). LC: Power control L with pressure cut-off, cross sensing control C and load sensing control I5.00 (ø127) 1.63 (41.5) 0.50 (12.7) Flange E J (C) 5.51 (140) *) 3.46 (88) 4.90 (124.5) (261,5) 7.80 (198) 5.35 (136) 0.75 (19) M W 0.59 (15) *) 1.81 (46) 4.37 (111) 6.06 (154) View clockwise rotation (counter-clockwise rotation) 0.39 (10) *) 0.67 (17) () 7.13 (181) 8.39 (213) () 4.25 (108) C L 0.91 (23) 3.23 (82) 3.23 (82) 4.41 (112) 9.53 (242) M V etail W etail V 1.97 (50) 3.06 (77.8) 0.75 (19) 2.00 (50.8) * ) Center of gravity 1.69 (42.9) 0.94 (23.8)

31 92 500/ VO Bosch exroth Corp. 31/60 Unit imensions, ize 60 haft ends Before finalizing your design, please request a certified drawing. imensions in inches and (millimeters). plined shaft 1 1/4 in 142/24P 2 ) (E J (C)) I3.58 (ø91) 7/16-14UNC-2B 1.10 (28) 1.89 (48) 1.57 (40) 0.37 (9.5) 2.20 (56) I1.77 (ø45) T plined shaft 1 3/8 in 216/32P 2 ) I3.58 (ø91) 7/16-14UNC-2B 1.10 (28) 1.89 (48) 1.57 (40) 0.37 (9.5) 2.20 (56) I1.77 (ø45) P Cyl. shaft with key IN x8x56 (mm) I3.58 (ø91) 0.81 (20.5) M12x ) 1.10 (28) 2.28 (58) 0.37 (9.5) 2.60 (66) I1.38 (ø35) I1.77 (ø45) Ports Tightening torque, max. ervice ports (high pressure series) E J518 3/4 in Fastening thread IO 68 3/8 in - 16 UNC-2B; 0.79 (20) deep see safety instructions uction port (standard series) E J518 2 in Fastening thread IO 68 1/2 in - 13 UNC-2B; 0.79 (20) deep see safety instructions, Bleeding, tank IO /8 in - 14 UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) Bleeding, oil drain IO /8 in - 14 UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) Measuring position, positioning chamber IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) M Measuring position, service port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) Pilot pressure port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with load sensing () and remote controlled pressure cut-off () Pilot pressure port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot pressure port IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with cross sensing (C) and power override (L3, L1) Port for control pressure (controller) IO /16 in - 18 UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) in version with stroke limiter (H.., U2), H and EP with E connector fitting male JIC-6 (otherwise port plugged) 1 ) Centering bore in accordance with IN ) NI B92.1a-1976, pressure angle 30, flat root side fit, tolerance class 5