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Festo 7EXCMc_en

The toothed belt pretensioning is determined by measuring the fundamental

oscillation (natural frequency) of the toothed belt with a fixed and freely

oscillating strand length (L). As the freely oscillating strand length (L) cannot be
measured directly, the distance (L1) between the motor pulley housing (a) and
the Y-axis (b) is used as a reference. This distance can be adjusted by offsetting
the Y-axis. The oscillation measurement is then carried out at this point.

1. Set the distance (L1) between the motor pulley housing (a) and the Y-axis

(b) to 90 mm, see the drawing above.

Caution

The pretension of the toothed belt is not an indicator of wear!

The values specified here are relate to a new toothed belt.
The toothed belt is set to the specified value in the factory, and is thus maintenance-free for its entire service life.

The pretension of the toothed belt reduces due to storage time and operation. This is not an indication of wear; it is a
normal process that must not be changed by retensioning the toothed belt.
The toothed belt pretension must therefore only be set after renewing the toothed belt.

Note

The belt must be able to oscillate freely. The acoustic frequency meter must
not touch the oscillating toothed belt.
To assess the toothed belt pre-tension, several measurements should be
taken to balance out any measurement tolerances.

2. Hold the acoustic frequency meter towards the centre of the distance (L1)

between the motor pulley housing (a) and the Y-axis (b) as described in the
accompanying operating instructions.

3. Make the toothed belt oscillate by striking it with a thin, heavy object, such

as an Allen key or pin punch.

4. If the measured natural frequency is within the allowable range of

182 Hz

to 192 Hz

, the threaded pins in the pulley housings can be tightened with a

tightening torque of 2.4 Nm ±10 %.

Example representation

Adjusting the toothed belt pre-tension

If the measured natural frequency is outside the specified range, the toothed belt pre-tension must be adjusted as

follows:

Turning the socket head screws clockwise increases the toothed belt
pre-tension, and turning the socket head screws anticlockwise decreases the
toothed belt pre-tension.

5. Adjust the toothed belt pre-tension by turning the socket head screws

evenly in the pulley housings.

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Содержание EXCM-10

Страница 1: ...Repair instructions en 7EXCMc_en Planar surface gantry EXCM 10 30 ...

Страница 2: ...uction distribution or sale of this document or communication of its contents to others without express authorisation is prohibited Offenders will be held liable for damages All rights reserved in the event that a patent utility model or design patent is registered All product designations and brand names used are the property of the owners and not explicitly identified as such All technical data ...

Страница 3: ...ions into consideration if necessary These repair instructions have been prepared with care Festo AG Co KG does not however accept liability for any errors in these repair instructions or their consequences Likewise no liability is accepted for direct or consequential damage resulting from incorrect use of the products Further information is given in Chapter 8 on page 51 The relevant regulations o...

Страница 4: ...overview 16 3 1 1 EXCM 10 bill of materials 17 3 2 Components overview EXCM 30 Product series up to H7 July 2016 18 3 2 1 Bill of materials EXCM 30 Product series up to H7 July 2016 19 3 3 Components overview EXCM 30 Product series from H8 August 2016 20 3 3 1 Bill of materials EXCM 30 Product series from H8 August 2016 21 3 4 Component overview EXCM 30 P8 Product series from H8 August 2016 22 3 4...

Страница 5: ... 39 4 2 4 Mounting the planar surface gantry 41 4 2 4 1 Cleaning and Greasing 41 4 2 4 2 Notes on the toothed belt 41 4 2 4 3 Installing the toothed belt EXCM 30 41 4 2 4 4 Installing the toothed belt EXCM 30 from product series H8 43 4 2 4 5 Adjusting the toothed belt pretensioning 46 4 2 4 6 Final steps 47 5 Homing 48 6 Cleaning and greasing 48 6 1 Cleaning 48 6 2 Relubricating 48 6 2 1 Lubricat...

Страница 6: ...rical installation the commissioning using the FCT the operation the control principle and the procedure for error diagnostics for planar surface gantries It can be found on the Festo website www festo com sp Spare parts documentation Contains an overview of the spare and wearing parts as well as information on their installation This can be found in the online spare parts catalogue on the Festo w...

Страница 7: ...carried out in conjunction with these repair instructions and the respective operating instructions for the device as well as the documents listed in Chapter 1 1 on page 6 Caution Unintended switching on can trigger unexpected movements and cause bruises Ensure that the unit is protected against restarting before any modification or maintenance work or inspections are carried out Loosened parts ca...

Страница 8: ...antry is designed for industrial use 1 6 Standards and test values Standards and test values which products comply with and fulfil can be found in the Technical data sections of the enclosed documentation 2 General product description 2 1 Functional description The EXCM 10 and EXCM 30 are compact planar surface gantries whose slides can be moved freely in a 2 dimensional space X Y axis The slides ...

Страница 9: ...r left 2 Baseplate 3 Guide pulley 4 Slide 5 Y traverse 6 Toothed belt 7 Cover right 8 Actuator end cap 9 Motor 2 aJ Controller aA Motor 1 2 2 2 EXCM 30 This illustration provides you with an overview of the design of the planar surface gantry EXCM 30 6 7 9 8 aJ 2 3 4 1 5 1 Cover left 2 Guide pulley 3 Slide 4 Y traverse 5 Toothed belt 6 Cover right 7 Drive cover motor 2 8 Cable outlet 9 Motor 2 aJ ...

Страница 10: ...0 KF B2 Motor is flange mounted underneath Cable outlet at rear EXCM 30 KF T2 Motor is flange mounted at the top Cable outlet at rear EXCM 30 KF B3 Motor is flange mounted underneath Cable outlet inside EXCM 30 KF T3 Motor is flange mounted at the top Cable outlet inside EXCM 30 KF B4 Motor is flange mounted underneath Cable outlet outside EXCM 30 KF T4 Motor is flange mounted at the top Cable out...

Страница 11: ...01917 EXCM 10 360 110 GF ST B E1 1801918 EXCM 10 460 110 GF ST B E1 1801916 EXCM 10 700 110 GF ST B E1 1801919 2 3 2 EXCM 30 Size Part number EXCM 30 2226101 2 4 Orientation designations 2 4 1 EXCM 10 This illustration provides an overview of the orientation designations for the planar surface gantry EXCM 10 Festo logo reference point O top U bottom R right L left V front H rear ...

Страница 12: ...features separated by a hyphen A list and description of all possible equipment features of the planar surface gantry can be found in the data sheet It is available on the Festo website www festo com 2 5 1 EXCM 10 Example 1801920 C708 ABCDEFG12345 EXCM 10 150 110 GF ST B E1 5 4 1 2 3 1 Order code 2 Part number 3 Serial number 4 Product key 5 Product Key Code Data Matrix Barcode http pk festo com P...

Страница 13: ...nted on the portal 2 5 2 EXCM 30 Example 2226101 C708 ABCDEFG12345 EXCM 30 300 210 KF ST T3 E4 5 4 1 2 3 1 Order code 2 Part number 3 Serial number 4 Product key 5 Product Key Code Data Matrix Barcode http pk festo com Product Key The order code on the product labelling provides the following information EXCM Electric planar surface gantry 30 Size slide load max 3 kg 300 300 mm stroke of the X axi...

Страница 14: ...aring guide of the X and Y axes Motor type ST Stepper motor SB Stepper motor with brake function W Without stepper motor Motor attachment position B bottom B1 bottom cable outlets to the front B2 bottom cable outlets to the rear B3 bottom cable outlets to the inside B4 bottom cable outlets to the outside T top T1 top cable outlets to the front T2 top cable outlets to rear T3 top cable outlets to t...

Страница 15: ... page 16 Chapter 3 1 1 on page 17 EXCM 30 up to H7 July 2016 Chapter 3 2 on page 18 Chapter 3 2 1 on page 19 EXCM 30 from H8 August 2016 Chapter 3 3 on page 20 Chapter 3 3 1 on page 21 EXCM 30 P8 from H8 August 2016 Chapter 3 4 on page 22 Chapter 3 4 1 on page 23 The following diagrams are intended only to provide an overview of the individual components To order spare and wearing parts please use...

Страница 16: ...16 52 Festo 7EXCMc_en 3 1 EXCM 10 components overview ...

Страница 17: ...2 M4 8 8 8 7 Ring gear 8 Coupling piece 9 Threaded pin DIN 913 M3 3 45H 10 Couplings 11 Stepper motor EMMS ST 28 L SE G3 12 Motor unit 13 Encoder cable NEBM S1G9 K 0 29 N L2G10 14 Terminal strip 8GD 1RR2 5 FEDER CBL 15 Terminal strip 3GD 1RR5 SCHRAUB CBL 16 Housing 17 Controller EXCM 2ST C3 1 18 Lubricating grease LUB KC1 silicone free 19 Screw locking agent LOCTITE 243 ...

Страница 18: ...18 52 Festo 7EXCMc_en 3 2 Components overview EXCM 30 Product series up to H7 July 2016 ...

Страница 19: ...pin DIN 6325 2M6 28 36 Actuator end cap assembly 37 Actuator end cap assembly No Designation type 38 Self tapping screw F M4 50 10 9 39 Threaded pin DIN 913 M4 4 45H 40 Countersunk screw DIN 7991 M3 8 8 8 41 Sleeve 42 Motor kit EAMM E CM 30 43 Threaded pin DIN 916 M3 4 A2 70 44 Coupling EAMC B 15 22 5 5 45 Coupling EAMC B 15 22 5 5 46 Stepper motor EMMS ST 42 SS SEB G2 47 Stepper motor EMMS ST 42 ...

Страница 20: ...20 52 Festo 7EXCMc_en 3 3 Components overview EXCM 30 Product series from H8 August 2016 ...

Страница 21: ...40 Sleeve 41 Motor kit EAMM E CM 30 42 Coupling EAMC 14 22 5 5 43 Socket head screw DIN 912 M2 8 12 9 44 Coupling EAMC 14 22 5 5 45 Threaded pin DIN 916 M3 4 A2 70 46 Coupling EAMC B 15 22 5 5 47 Coupling EAMC B 15 22 5 5 48 Terminal strip 8GD 1RR2 5 FEDER CBL 49 Terminal strip 3GD 1RR5 SCHRAUB CBL 50 Housing 51 Controller E CM 2ST C3 1 52 Terminal strip 8GD 1RR2 5 FEDER CBL 53 Terminal strip 4GD ...

Страница 22: ...22 52 Festo 7EXCMc_en 3 4 Component overview EXCM 30 P8 Product series from H8 August 2016 ...

Страница 23: ...DIN 913 M4 4 45H 43 Countersunk screw DIN 7991 M3 8 8 8 44 Sleeve 45 Motor kit EAMM E CM 30 46 Coupling EAMC 14 22 5 5 47 Socket head screw DIN 912 M2 8 12 9 48 Coupling EAMC 14 22 5 5 49 Threaded pin DIN 916 M3 4 A2 70 50 Coupling EAMC B 15 22 5 5 51 Coupling EAMC B 15 22 5 5 52 Terminal strip 8GD 1RR2 5 FEDER CBL 53 Terminal strip 3GD 1RR5 SCHRAUB CBL 54 Housing 55 Controller E CM 2ST C3 1 56 Te...

Страница 24: ...sted accordingly Ambient conditions material resistance Check whether the ambient temperature is within the permissible range Check the chemical and physical ambient conditions for hazardous substances such as dust abrasive particles cooling lubricants solvents ozone radiation water soluble substances greases and oils etc Note The repair should preferably be carried out on a stable and flat work s...

Страница 25: ...off outwards 4 1 2 Visual inspection Check the planar surface gantry for visible damage that can impair its function such as major defects in the guide rails of both X axes or the Y traverse The planar surface gantry must be completely replaced if significant damage exists 4 1 3 Dismantling the planar surface gantry 1 Unscrew the threaded pin in both pulley housings until it is flush with the pull...

Страница 26: ...that the ring gear is not lost between the coupling and motor 3 Unscrew the socket head screws in the motor pulley housing 4 Remove the motor pulley housing by pulling it upwards 5 Unscrew the mounting screws of the motor 6 Remove the motor by pulling it downwards 7 Release the threaded pin in the coupling piece 8 Remove the coupling piece from the motor shaft by pulling it upwards ...

Страница 27: ...Screw in the mounting screws and tighten to a tightening torque of 1 Nm 10 16 Insert the ring gear into the coupling piece on the motor shaft 17 Align the drive pinion in the motor pulley housing so that the connecting lug of the ring gear is flush with the recess in the drive pinion Pulling the toothed belt on the corresponding side of the motor pulley hous ing is the easiest way to align the dri...

Страница 28: ...ad screws in both pulley housings evenly until the toothed belt is completely tension free 3 Unscrew the socket head screw from the clamping plate and remove it with the clamping plate 4 Pull the toothed belt out of the Y axis 5 Pull the toothed belt out of both motor pulley housings 6 Push the Y axis towards the motor pulley housings until it reaches the stop 7 Pull the toothed belt from both pul...

Страница 29: ...ke of your planar surface gantry when ordering The information required is shown in the product labelling on the planar surface gantry see order example below You can use this information to calculate the necessary toothed belt length If it is necessary to change the toothed belt always investigate the cause of the failure in order to prevent premature and repeated failure A planar surface gantry ...

Страница 30: ... Check which controller settings can be adjusted e g jerk limitation smoothing of the acceleration profile Check the settings for all braking ramps in your controller or the higher order control system deceleration values and jerk Make sure that the deceleration values braking deceleration deceleration times for the speed the load to be moved and the installation position horizontal vertical and t...

Страница 31: ...it into the second pulley housing The overhang of the toothed belt from the pulley housings should be roughly equal on both sides 7 Push the toothed belt through both motor pulley housings To help check the clamping area of the toothed belt mark the toothed belt on the rear after the seventh tooth with a white pen That is the only way to check that the toothed belt is pressed far enough onto the m...

Страница 32: ...ocking agent 17 Screw the socket head screws into the pulley housing and do not tighten yet 18 Align the outer and rear edge of the pulley housing parallel to the edges of the base profile 19 Tighten the socket head screws to a torque of 1 5 Nm 20 20 Mount the second pulley housing using a similar procedure to the first 21 Pre tension the toothed belt slightly Turning the socket head screws clockw...

Страница 33: ...elt pretension must therefore only be set after renewing the toothed belt Note The belt must be able to oscillate freely The acoustic frequency meter must not touch the oscillating toothed belt To assess the toothed belt pre tension several measurements should be taken to balance out any measurement tolerances 2 Hold the acoustic frequency meter towards the centre of the distance L1 between the mo...

Страница 34: ...nition is clear ly retained the covers must be remounted on the same side during assembly Chapter 2 3 on page 11 Push both covers inwards against the base profile until the retaining lug clicks into place audibly Caution Every time the controller is restarted and thus every time the planar surface gantry is repaired it must be re homed Further information is available in the Chapter 5 on page 48 a...

Страница 35: ...ip the cover from both cylindrical dowel pins and swivel it upwards 2 Remove the cover away from the base profile of the axis Note To prevent damage to sealing rims and toothed belt do not use pointed or sharp edged assembly aids 4 2 2 Visual inspection Check the planar surface gantry for visible damage that can impair its function such as major defects in the guide rails of both X axes or the Y t...

Страница 36: ...ed pins of the coupling and the motor clamp do not use an Allen key with a ball head The internal hexagonal socket of the threaded pins could be severely damaged making it impossible to open them in future 1 Move the Y axis to position the coupling so that the threaded pin of the coupling can be seen through the cross hole in the motor pulley housing 2 Release the threaded pin of the coupling Note...

Страница 37: ...he coupling does not tilt with the pinion shaft Therefore the motor must be positioned on the motor pulley housing at a 90 angle 3 Turn the motor shaft so that the threaded pin of the coupling is aligned with the drill hole in the motor pulley housing 4 Insert the motor carefully according to the motor mounting variant Chapter 2 2 2 1 on page 10 5 Push the motor onto the motor pulley housing and t...

Страница 38: ...nscrew the socket head screws in both pulley housings evenly until the toothed belt is completely tension free 3 Unscrew the mounting screws of the cover sheet and remove the cover sheet 4 Unscrew the socket head screw from the clamping plate and remove it with the clamping plate 5 Pull both ends of the toothed belt out of the guide pulleys and motor pulley housing ...

Страница 39: ...the threaded pin in both pulley housings until it is flush with the pulley housing 2 Unscrew the socket head screws in both pulley housings evenly until the toothed belt is completely tension free Only with EXCM 30 P8 Note On unscrewing the countersunk screws and removing the cover ensure that the slot nuts do not fall into the gantry and or become lost 1 Unscrew the countersunk screws from the te...

Страница 40: ...key with a knob to undo and tighten the socket head screws of the slide The internal hexagonal socket of the socket head screws could be severely damaged making it impossible to undo them in future 3 Unscrew all four socket head screws of the slide and remove 4 Lift up the slide carefully from above and unscrew the countersunk screw of the clamping plate 5 Remove the countersunk screw and the clam...

Страница 41: ...nar surface gantry In addition to the part number you must also specify the stroke of your planar surface gantry when ordering The information required is shown in the product labelling on the planar surface gantry see order example below You can use this information to calculate the necessary toothed belt length Cutting the new toothed belt to length The exact length of the toothed belt in mm is ...

Страница 42: ...des 6 Insert both ends of the toothed belt into the respective motor pulley housing 7 Feed both ends of the toothed belt past the guide pulleys of the Y axis As an assembly aid the drive pinion can be turned in the motor pulley hous ing with a blunt non splintering object The rotating movement pulls the toothed belt into the pulley housing 8 Press the toothed belt against the milled profile of the...

Страница 43: ... gantry see order example below You can use this information to calculate the necessary toothed belt length Cutting the new toothed belt to length The exact length of the toothed belt in mm is derived from the total of the zero stroke plus 4 X stroke plus 2 Y stroke Check the length of the new toothed belt and shorten it if necessary to the calculated length with sturdy general purpose scissors Se...

Страница 44: ...the toothed belt into the pulley housing 8 Position the slide so that both ends of the toothed belt can be pressed onto the milled profile of the slide The toothed belt must end flush with the bottom edge of the slide The milled profile of the slide is designed such that the teeth of the profile mesh with the teeth of the toothed belt That makes it easier to mount the toothed belt 9 Place the clam...

Страница 45: ...ws and tighten to a tightening torque of 1 2 Nm 10 3 Mount the second terminal block in the same way as the first one Note After inserting the slot nuts ensure that they do not fall into the gantry and or become lost 4 Insert the slot nuts into the two terminal blocks 5 Push the cover through the side of the slide and position in the middle 6 Screw the countersunk screws into the terminal blocks a...

Страница 46: ...ng above Caution The pretension of the toothed belt is not an indicator of wear The values specified here are relate to a new toothed belt The toothed belt is set to the specified value in the factory and is thus maintenance free for its entire service life The pretension of the toothed belt reduces due to storage time and operation This is not an indication of wear it is a normal process that mus...

Страница 47: ...times to compen sate for differences in tension 6 Set the distance between the motor pulley housing and the Y axis to 90 mm again 7 Check the toothed belt pre tension again as described above 8 If the toothed belt pre tension is within the permitted range screw the threaded pins into the pulley housing and tighten them to a torque of 2 4 Nm 10 4 2 4 6 Final steps 1 Push the covers inwards against ...

Страница 48: ...s Festo recommends LOCTITE 7061 or an alternative suitable cleaning product for cleaning When using other cleaning agents make sure that they do not corrode the non metal parts of the planar surface gantry If in doubt check the resistance of the non metal parts with the help of the information on the Festo website www festo com Clean the planar surface gantry as required with a soft cloth Avoid cl...

Страница 49: ... layer of grease all around the guide rails of the X and Y axes Roller carriage of the X axis LUB KC1 silicone free1 Quantity of grease 1 0 gram per lubrication nipple Number of lubrication nipples EXCM 30 4 Grease gun Chapter 7 2 on page 50 Roller carriage in the Y traverse LUB KC1 silicone free1 Quantity of grease 1 0 gram per lubrication nipple Number of lubrication nipples EXCM 30 2 Grease gun...

Страница 50: ...47958 Lubrication adapter LUB 1 TR I Lubrication adapter nozzle pipe Ø 6 200 axial 647959 Lubrication adapter LUB 1 TR L Lubrication adapter nozzle pipe Ø 6 200 lateral 647960 Lubrication adapter LUB 1 TR W Lubrication adapter nozzle pipe Ø 6 200 lateral 45 angled 8073388 Additional information on the fixtures and measuring devices can be found in the Tools and repair accessories information broch...

Страница 51: ...Designation Description Figure TB TE EQ13 Acoustic frequency meter for measurement with and without a test device 8 Liability The General Terms and Conditions of Business AGB of Festo AG Co KG which can be viewed on the Festo website www festo com apply ...

Страница 52: ... hardware and soft ware The hardware status and where appli cable the software status of the product can be found on the name plate of the product If the electronic documentation in whatever form is not supplied with the product i e is not supplied on a data storage device dis kettes CD ROM removable disk as a delivery unit with the relevant product Festo does not guarantee that the electronic doc...

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