Automatic Pallet Changer Operator's Addendum - Haas Automation ...

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20
5.0 PAllet chAnger recovery
The M50 pallet change must be successfully completed before normal operations
can continue.
If the pallet change is interrupted, another pallet change must be run to reset
the machine. If this puts the wrong pallet into the VMC then an additional pallet
change must be run.
The operator must exercise caution when running multiple M50 commands to
position pallets. The operator must be aware of incomplete fixturing, tool, and
personnel locations.
Has power been turned off since
the pallet motion was stopped?
Is the receiver Unclamped?
YES
NO
Manually move the pallet to aknown location,
either on the receiver, oronthe APC to engage
the associated switch. Verify alignment of pin
and bushing.
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If needed, rotate the chain toaknown location
that compliments the pallet locations. Use the
sprocket rotation tool to move the chain.
Run M18 to close
the door and clamp
the receiver.
Run M50 to complete apallet
cycle. The completed M50
will clear the Pallet Change
Incomplete variable.
* * * *
YES
NO
Troubleshooting aPower Outage or E-Stop condition with
a Pallet intransition between the Receiver and the APC.
* *
Run M17 to open the
door and unclamp
the receiver.
Is Power ON?
YES NO*
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* There are 5switches involved in the location ofthe pallets and chain.
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CAUTION!
With the pallet stopped between the APC and receiver the
drive pin onthe chain will be engaged with the pallet drive
arm. Severe damage may occur if the “X” or “Y” axes are
moved automatically.
Power ON the VMC. Do not push Power
Up Restart. Do not Zero Return, auto all
axes. Do not Zero asingle axis. Do not
Jog or otherwise move the Xand Y axes.
1pallet switch onthe receiver (Pallet Clamp Switch).
2pallet switches on the APC (Pallet Home Switches).
2 chain switches on the APC (Pin Clear Switches).
With power and air supply ON, have an assistant manually
actuate the solenoids on the lube panel to open the APC
door and unclamp the receiver. Constant pressure must be
maintained on the actuators to provide acontinuous air flow.
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*
Manually move the pallet toaknown location,
either on the receiver, oronthe APC to engage
the associated switch. Verify alignment of pin
and bushing.
If needed, rotate the chain toaknown location
that compliments the pallet locations. Use the
sprocket rotation tool to move the chain.
Release the solenoid
actuators.
Zero the axes.
If the power to the VMC has been shut down either intentionally or by
power outage, damage may occur to the APC pallet, the receiver, or
the drive chain ifthe XorYaxes are moved in the VMC at power ON.
At power ON the VMC will investigate the pallet and chain location and
alarm if either an unknown chain location or unknown pallet location are
detected.
At the beginning of the APC M50, aPallet Change Incomplete variable is set to 1and
reset to 0atthe end. The VMC will not operate properly ifapallet change
(M50) has not been completed.
96-0012 Rev N
June 2009