y Installation of the SIMOTICS T-1FW6 built-in torque motors · 2015. 2. 3. · 1 Installation of...

http://support.automation.siemens.com/WW/view/de/99858169

FAQ 04/2014

Installation of theSIMOTICS T-1FW6built-in torque motorsFurther information in the Configuration Manual.

http://support.automation.siemens.com/WW/view/de/99858169

Installation of the SIMOTICS T-1FW6 built-in torque motorsEntry ID: 99858169, V1.1, FAQ-03A8MW4E, 04/2014 2

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This article originates from Siemens Industry Online Support. The terms of usespecified there apply (www.siemens.com/terms_of_use).

Table of contents1 Installation of the SIMOTICS T-1FW6 built-in torque motors ........................ 3

1.1 O-rings for cooling jacket motors ......................................................... 31.2 Mounting tolerances and fits ................................................................ 41.2.1 Overview of the installation situation .................................................... 41.2.2 Fits when installing the stator of the cooling jacket motors .................. 51.2.3 Fits when installing the stator of motors with integrated cooling

system .................................................................................................. 61.2.4 Fits when installing the rotor ................................................................ 71.3 Mounting motors exclusively via the B flange ...................................... 81.4 Position of the transport locks (as delivered) ....................................... 91.5 Spacer film ......................................................................................... 111.6 Realigning the rotor ............................................................................ 121.7 Angular adjustment for parallel operation .......................................... 151.8 Cooling system connection for frame sizes 1FW6050 and

1FW6060 ............................................................................................ 16

Fig. 1-1: Position of the O-rings in the cooling jacket ......................................... 3Fig. 1-2: Overview of the tolerance zone positions ............................................ 4Fig. 1-3: Installation of the cooling jacket motor stator (schematic) ................... 6Fig. 1-4: 1FW6050, 060, 160, 190, 230 290 stator installation types

(schematic) ........................................................................................... 7Fig. 1-5: 1FW6090, 130, 150 rotor installation types (schematic) ...................... 7Fig. 1-6: Comparison of the stator variants (schematic)..................................... 8Fig. 1-7: Schematic motor cross-section and adjustment angle (not to scale) 16Fig. 1-8: Position of the cooling system connection nipples ............................. 16

Table 1-1: Cooling jacket motors with the appropriate O-rings ............................. 3Table 1-2: Tolerance zones for the two machine bodies of each series ............... 5Table 1-3: Motor windings with motor mounting exclusively via the B flange ....... 8Table 1-4: Positions of the transport locks as delivered ...................................... 10Table 1-5: Dimensions of the appropriate spacer films ....................................... 12Table 1-6: Steps required to realign the rotor ...................................................... 13Table 1-7: Display of possible connection methods with push-in-fittings. ........... 17

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1 Installation of the SIMOTICS T-1FW6 built-in torque motors


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1 Installation of the SIMOTICS T-1FW6built-in torque motors

1.1 O-rings for cooling jacket motorsSIMOTICS T-1FW6 built-in torque motors with cooling jacket are installed in thecustomer's machine in the holes prepared by the customer. The grooves in thejacket surface of the stator together with the internal wall of the hole form thecooling system of the motor. This cooling system is sealed externally by twoO-rings (fluorocarbon rubber, trade name Viton®).The O-rings (ring chord) have a circular cross-section before installation. They arepressed flush into the ring groove when the stator is inserted. The cross-section ofthe O-rings is deformed and works as a sealing element.

Fig. 1-1: Position of the O-rings in the cooling jacket

Table 1-1: Cooling jacket motors with the appropriate O-rings

Notice: Order quantity and delivery unit = 1 piece.Two O-rings are required for a complete replacement.

Frame size MLFB for O-ring Length in new condition

1FW6090 1FW6090–1EA00–0AA0 703 mm

1FW6130 1FW6130–1EA00–0AA0 950 mm

1FW6150 1FW6150–1EA00–0AA0 1180 mm



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1.2 Mounting tolerances and fits

The components of the SIMOTICS T-1FW6 built-in torque motors are only held intheir specified position to one another when installed in the machine. The rotor ismounted on a machine shaft or a shaft stump. The stator is inserted in a preparedhole in the machine (for motors with cooling jacket) or attached to the machinebody (for motors with integrated cooling).The specifications and information in the current 1FW6 Configuration Manual mustbe taken into account with regard to true running and eccentricity.

1.2.1 Overview of the installation situation

The following figure shows the dimensions for which the machine manufacturer isresponsible. On the one hand, this is the diameter of the machine shaft and on theother hand the diameter of the machine hole. A machine hole is not required formotors with integrated cooling, but the diameter specifications then apply for acentering collar (see note in the following section).Fig. 1-2: Overview of the tolerance zone positions



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Table 1-2: Tolerance zones for the two machine bodies of each series

MLFB Machine shaftD in mm

Tolerance zonein m

Machine shaftD in mm

Tolerance zonein m

1FW6050 64 -10 … -29 159 +0 … +631FW6060 92 -12 … -34 184 +0 … +721FW6090 140 -14 ... -39 230 +0 …+721FW6130 220 -15 … -44 310 +0 … +811FW6150 265 -17 … -49 385 +0 … +891FW6160 282 -17 … -49 440 +0 … +971FW6190 344 -18 … -54 502 +0 … +1101FW6230 418 -20 … -60 576 +0 … +1101FW6290 522 -22 … -66 730 +0 … +125

1.2.2 Fits when installing the stator of the cooling jacket motors

The stator of the SIMOTICS T-1FW6 built-in torque motor with cooling jacket(1FW6090, 130, 150 series) has a centering collar on each flange, which has beenmanufactured with tolerance class f8 to the nominal size. The external diameter isalways slightly under the nominal size. Because of the magnetic forces betweenthe stator and the rotor, this cannot be measured when not installed.

Tolerance class H8 is strongly recommended at the customer site for the machinehole in which the stator is inserted. The hole diameter always has the nominal sizeor slightly larger.The hole at the customer and the 1FW6 stator always form a clearance fit.The stator hole must accommodate the entire length of the stator.A finish quality of RZ = 3.2 is recommended in order to avoid damage to the O-ringswhen inserting the stator, however it must never be more than RZ = 4.0. For thesame reason reason, the hole must have a lead-in chamfer (angle of 15° - 20°).The specifications and information in the current SIMOTICS T-1FW6 ConfigurationManual must be taken into account with regard to quality of the machine hole at thecustomer.



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Fig. 1-3: Installation of the cooling jacket motor stator (schematic)

1FW6cooling jacket motor

MaschinenseitigePassung: H8

Machine

Fit on themachine: H8

StatorseitigePassung: f8Fot on thestator: f8

Flange usedfor mounting

Freeflange

1.2.3 Fits when installing the stator of motors with integrated coolingsystem

The stator of the SIMOTICS T-1FW6 built-in torque motor with integrated cooling(1FW6050, 060, 160, 190, 230, 290 series) has a centering collar on each flange,which has been manufactured with tolerance class f8 to the nominal size. Theexternal diameter is always slightly under the nominal size.

Tolerance class H8 is strongly recommended at the customer site for the centeringcollar in which the stator is inserted. The collar diameter always has the nominalsize or slightly larger.For motors with integrated cooling, a centering collar on the machine is sufficientas counterface to the centering collar on the machine. The provision of a centeringcollar on the machine is optional, but strongly recommended.Motors with integrated cooling must only be inserted in a centering collar on theflange that is used for mounting. It is not necessary to insert the stator into amachine hole (enclosure). However, if the stator is installed in a machine hole, itmust have an annular gap of at least 1.5 mm over the entire stator surface and onthe free flange for the thermal expansion of the stator.



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Fig. 1-4: 1FW6050, 060, 160, 190, 230 290 stator installation types (schematic)

Installation with housing Installation without housing

1.2.4 Fits when installing the rotor

The rotor of the SIMOTICS T-1FW6 built-in torque motor is manufactured withtolerance class H8 to the nominal size. The internal diameter of the rotor ringalways has the nominal size or is larger.The machine shaft at the customer on to which the rotor is to be pushed, should bemanufactured with tolerance class g6 to the nominal size. The external diameter ofthe shaft is always slightly under the nominal size.The shaft and the rotor at the customer site always form a clearance fit.The rotors of frame sizes 1FW6050, 060, 160, 190, 230, 290 have a centeringcollar on both ends of the inner surface.For the centering of the rotor on the shaft, it is sufficient when the shaft or the shaftextension has a centering collar at the end of the rotor seat.Fig. 1-5: 1FW6090, 130, 150 rotor installation types (schematic)

Mounting on a continuous shaft Mounting on a shaft extension



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1.3 Mounting motors exclusively via theB flangeDepending on the rated speed, SIMOTICS T-1FW6 built-in torque motors havedifferent continuous currents. Motors that have particularly high continuouscurrents (data sheet value) have more complex windings and require a largerconnection space on the A flange (flange with cable outlet) within the motor.Therefore, the A flange is only connected via supporting elements and longer fixingscrews with these kinds of windings.For this reason, this connection cannot transmit the full torque. The full torque isonly available via the B flange (flange without cable outlet). Mounting of the motoron the A flange is therefore not permitted.Fig. 1-6: Comparison of the stator variants (schematic)

Table 1-3: Motor windings with motor mounting exclusively via the B flangeOrder designation,standard versions

Statorlength

Order designation,relevant types

Statorlength

1FW6160-xxx10-xxxx 160 mm 1FW6160-xxx10-2Pxx 170 mm

1FW6160-xxx15-xxxx 210 mm1FW6160-xxx15-2Pxx

220 mm1FW6160-xxx15-0Wxx



1FW6190-xxx10-xxxx 160 mm 1FW6190-xxx10-2Pxx 170 mm





1FW6230-xxx15-xxxx 210 mm 1FW6230-xxx15-0Wxx 220 mm1FW6230-xxx20-xxxx 260 mm 1FW6230-xxx20-0Wxx 270 mm

1FW6290-xxx07-xxxx 140 mm 1FW6290-xxx07-2Pxx 160 mm1FW6290-xxx11-xxxx 180 mm 1FW6290-xxx11-2Pxx 200 mm1FW6290-xxx15-xxxx 220 mm 1FW6290-xxx15-2Pxx 240 mm





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1.4 Position of the transport locks (as delivered)The transport locks of the SIMOTICS T-1FW6 built-in torque motor keep the rotoraway from the stator (motor when not installed) and prevent contact between thecomponents. The position and number of transport locks as delivered differdepending on the frame size and partly also depending on the overall length.In order to make the removal of the transport locks after the installation of themotor as simple as possible, the position of the locks should be taken into accountduring the machine construction. The following views show the respective positionsof the transport locks.



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Table 1-4: Positions of the transport locks as delivered

MLFB View of the B flange(flange without cable outlet)

View of the A flange(flange with cable outlet)

1FW60501FW6060

1FW60901FW61301FW6150

1FW6160



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1.5 Spacer filmWith the SIMOTICS T-1FW6 built-in torque motors, the stator and the rotor are onlyfixed in their specified concentric position after installation in the customer'smachine. As delivered – before the installation – they are held together by thetransport locks which prevent contact between the stator inside surface and therotor outside surface.As delivered, a spacer film is loosely inserted in the air gap of the 1FW6 built-intorque motor in order to prevent contact between the stator and rotor in the eventof a handling error during assembly or disassembly (all transport locks have beenremoved).The spacer film must be removed from the air gap before the rotor is turned for thefirst time.Data on the film material inserted in the factory:

Supplier: SAHLBERG GmbH & Co. KGFriedrich-Schüle-Str. 20DE-85622 Feldkirchen / Munich. GermanySahlberg ordering center: PA-6 film, naturalMaterial: Polyamide (PA-6).Film thickness and area of application:D = 0.5 mm article number 412401e (for frame sizes 1FW6050 – 1FW6150)D = 1.0 mm article number 412402e (for frame sizes 1FW6160 – 1FW6290)

Alternatively, film material of the same thickness and strength can be obtained fromother suppliers.The following table shows the dimensions of the appropriate spacer film for eachmotor size. A shorter piece of film must be used for subsequent insertion of aspacer film in the asymmetric air gap of a motor that is no longer alignedcentrically. These lengths are also listed in the table ("Length of the cut part"column).

https://www.sahlberg-bestellcenter.de/cgi-bin/tradepro/shop/frontde/tradepro.cgi?func=det&wkid=5016143199900&rub=100138499&root=1001&artnr=100112&pn=0&sbeg=&artfilter=



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Table 1-5: Dimensions of the appropriate spacer filmsFrame size Axis length Film width

in mmOriginal length of

the film in mmLength of the cut

part approx. in mm

1FW6 050

xxx03 45

300 150xxx05 65xxx07 85xxx10 115xxx15 165

1FW6060

xxx03 45

380 190xxx05 65xxx07 85xxx10 115xxx15 165

1FW6090

xxx05 50

530 260xxx07 70xxx10 100xxx15 150

1FW6130

xxx05 50

800 400xxx07 70xxx10 100xxx15 150

1FW6150

xxx05 50

940 460xxx07 70xxx10 100xxx15 150

1FW6160

xxx05 60

1030 500xxx07 80xxx10 110xxx15 160xxx20 210

1FW6190

xxx05 60

1220 600xxx07 80xxx10 110xxx15 160xxx20 210

1FW6230

xxx05 60

1450 720xxx07 80xxx10 110xxx15 160xxx20 210

1FW6290

xxx07 90

1820 900xxx11 130xxx15 170xxx20 210

1.6 Realigning the rotorThe specifications and information in the current Configuration Manual forSIMOTICS T-1FW6 built-in torque motors must be taken into account with regardto true running and eccentricity.As a result of incorrect handling before installation, the axes of the rotor and statormay no longer be concentric and consequently the rotor adheres to the insidesurface of the stator due to the magnetic attraction:



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a. All transport locks have been removed before the motor was installed inthe machine.

b. The motor has been removed from the machine although the transportlocks have not been attached.

The following table shows the steps that must be performed to center the rotor inthe stator again.

Table 1-6: Steps required to realign the rotor

No. Step

1 Initial situation:The rotor is no longer aligned andadheres magnetically directly tothe inner side of the stator.(Contact point: See arrow)

2 The (supplied original) spacer filmis shortened appropriately(approx. half of the original length).The dimensions of the appropriatecut parts are specified in Section"Spacer film".



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3 The suitably cut film is insertedin the remaining, enlarged air gapopposite to the contact point(see marking).

4 The contact point between therotor and stator is pulled over tothe film with a screw clamp.The outer surface of the statormust be protected with paddingthat covers a large area in order todistribute the pressure and preventdeformation.A piece of protective film from theoriginal spacer film is sufficient toprotect the inside surface of therotor.

5 The contact point between therotor and stator on the protectivefilm is prevented from moving backwith a second screw clamp withprotective padding.The clamping screws are movedalternately and tensioned carefullyto move the contact point further tothe middle of the film.



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1.7 Angular adjustment for parallel operationFor the electric parallel operation of two SIMOTICS T-1FW6 built-in torque motors,the two motors must be aligned electrically as precisely as possible to one another(caution: not mechanically). One criterion for this is the counter-EMFcharacteristics of both motors. They must not differ by more than 10° electrically.For electric parallel operation of n motors, this applies accordingly for each motor inrelation to a freely selectable motor of the parallel connection.In order to be able to minimize any differences due to manufacturing tolerances,the mounting angle must be able to be adjusted for the stator or the rotor for onemotor (or for n-1 motors).Irrespective of the frame size, a mechanical timing angle amech of +/-1°corresponding to arc b of approx. +/-1.5 mm must be possible (see the diagramin the following figure). In this way, the required adjustment range is alwayscovered.Since the adjustment can always be made by turning the stator or by turning therotor, the maximum required arc is always specified at the air gap (therefore validfor both adjustment methods).

6 The rotor is completely on the filmand no longer has any directcontact with the stator. The secondhalf of the film can now be insertedin the gap to prevent any newdirect contact.The transport locks are placed onthe top side, the fixing screws areinserted and screwed in manually.(You must ensure that the screwsdo not become canted!)

7 The fixing screws are tightenedmanually, whereby the rotor ispulled in the direction of thespecified position.The spacer film must remain in theair gap until the motor is installedin the machine, but removedbefore the rotor turns.



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Fig. 1-7: Schematic motor cross-section and adjustment angle (not to scale)

1.8 Cooling system connection for frame sizes 1FW6050and 1FW6060Fig. 1-8: Position of the cooling system connection nipples

The cooling system of the SIMOTICS T-1FW6 built-in torque motors of frame sizes050 and 060 is equipped with 8 mm connection nipples for the connection of aneasily releasable push-in-fitting.



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Depending on the mounting situation, a hose infeed with angle push-in-fittings orstraight push-in-fittings may be better.

Table 1-7: Display of possible connection methods with push-in-fittings.

Cooling system connection withangle hose push-in-fittings

Source of supply, e.g.AVS Ing. J.C. Römer company

Type 955X4-8F (stainless steel)Type 955P-8 (plastic)

Cooling system connection withstraight hose push-in-fittings

Source of supply, e.g.AVS Ing. J.C. Römer company

Type 958M-8 (brass)Type 958P-8 (plastic)

The push-in-fitting must be pushed on to the connection nipple (at least 8 mm) untilthe ring claw snaps into the ring groove of the connection nipple.Caution: Not all of the products available on the market are suitable!

To release the push-in-fitting, press the release ring when the push-in-fitting is notunder tension (see also the respective product data sheet). Otherwise the ring clawcannot be released.

Installation of theSIMOTICS T-1FW6 built-in torque motors1 Installation of the SIMOTICS T-1FW6 builtin torque motors1.1 O-rings for cooling jacket motors1.2 Mounting tolerances and fits1.2.1 Overview of the installation situation1.2.2 Fits when installing the stator of the cooling jacket motors1.2.3 Fits when installing the stator of motors with integrated cooling system1.2.4 Fits when installing the rotor

1.3 Mounting motors exclusively via theB flange1.4 Position of the transport locks (as delivered)1.5 Spacer film1.6 Realigning the rotor1.7 Angular adjustment for parallel operation1.8 Cooling system connection for frame sizes 1FW6050 and 1FW6060

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