Gantry Alignment Procedure

Health and Safety

• Notify the affected team members of the upcoming work

• To release the brakes we need the 24 VDC , please do not put the power on until all the wiring is done properly, make sure to switch the power off before unplugging the used cable once finished

• Rotate the shaft directly and put you body as far as you can from the 460 V circuit breaker

• Adapt a healthy stances whenever you have to push or lift a reasonable weight ( ask for help if you feel you can not do it)

• PPE required

• Check you tools before usage

Gantry alignment

1) In order to release the brake on the master gripper, connect 24 VDC from the power supply located in the electrical panel to the brake plug X1 (BR +-) at N111 unit ( SINAMICS S120), using two wires cable and make sure you plug the + of the 24 VDC with BR(+ )and - with BR(-) 2) Move the master gripper until matching pr almost with the slave gripper ( you can not be precise just with your eyes , but at least try to make them facing each other) 3) Enter Homag service logins and go to service to change the value of the master gripper encoder value to whatever the slave gripper encoder value is (to erase that huge discrepancy and allow the further steps) 4) Put the bar back again, you have to match the holes on the adapter 5) Switch the machine off and take out the cable you used to release the brake and switch on again and close the electrical cabinet ( we need the both of the brakes operational for the coming steps) 6) Put the X=0 yellow bars, and send the machine to X=100 ( reduce the speed and monitor the movement to avoid any crush) 7) Assess if the belts on both sides are tensioned similarly 8) Once arrived at X=100, use a metric measurement ruler or tape to see if it is corresponding to X=100 9) Basically the value will not be corresponding because of that event, so adjust the encoders values to make it match to X=100 10) Finally take out the yellow bars and start processing the walls to see if the grippers plates are matching the stoppers ( flush )

• 1-With a small flat head screw driver open the two screws at the power supply +24 VDC and 0 which is the (-) 2-Plug your two wires and tighten the screws 3-Plug the other end to the brake connection accordingly ++ and - - 4-Switch the power on 460 V

• Manually push the master gripper ( it should be easy to push since the brake is released)

• 1-Go the X axe and click on change reference point 2-Press the emergency button and check the box of the master side (X1M) 3-Put the same value as the slave side ( bottom left window and apply change and wait)

• 1-Reset errors and make sure the machine is ready 2-Put two M8X20 bolts and washers and tighten the bar to the adapter using 13 mm wrench ( move the bar until the holes matches with the adapter)

• 1-With a small flat head screw driver open the two screws at the power supply +24 VDC and 0 which is the (-) 2-Unpplug your two wires by loosening the screws 3-Unpplug the other end attached to the brake BR 4-Plug the connection into the N111 module and make sure it sitting there properly

• Assess the movement of the gantry while travelling to X=100

• 1-Open the omega drive box using a 13 mm wrench 2-Be sure that both of the belts are not touching the body of the box ( check if there are some belts debris to confirm if there is friction or not)

• Place the ruler 0 mm at the edge of that dedicated calibration bolt, and see how much mm until the edge of the yellow bars

• 1- Drive the gantry to X=3000 mm ( that is an example ), and go again to X=100 after the recalibration of the encoders (put the real measured values at the left bottom side window for both gripper and keep the two boxes checked X1M,X1S ) and apply the changes 2-Go back and forth with the gantry the see if the gantry will match the X=100 once you send it there, if no check the belt tensioning and how the belt is going inside the omega drive ( drive it slowly and check)

• If the grippers plates are not flush with the stoppers( forward or backward) adjust the encoder value until it is ( add or deduct 4mm max just in case you are going to the wrong direction

Inspection

Once finished the intervention, inspect the area ( for remaining tools or whatever left or not cleaned that can provoke a safety hazard or can cause machine further damage) 1-Verify all the parts/tools are packed and nothing is left making obstruction 2-No substances should be left on the floor or area of work ( oil, grease must be cleaned ) 3-All wires used should unplugged

• Pass
• Flag
• Fail

Technician Signature