331
ALARMS
June 1999
96-8000
1011 Unknown Chain Location Neither Chain Location switch is tripped, so the control cannot
locate the chain position. This can occur if a pallet change is
interrupted for any reason, such as an alarm or an E-STOP. To
correct this problem, the pallets and chain must be moved back
into a recognized position, such as both pallets home or one
pallet home and one on the receiver. The chain position
adjustment tool must be used to rotate the chain into position.
The pallets must be pushed into place by hand.
WARNING!
Do not move the limit switches for any reason.
CAUTION! The pallets weigh 300 lbs. each, and can cause serious injury. Use
extreme caution when moving them.
1012 Incorrect Chain Location Chain not in position to load or unload pallets when necessary.
To correct this, the mislocated pallet must be moved back into
the proper position by hand.
CAUTION! The pallets weigh 300 lbs. each, and can cause serious injury. Use
extreme caution when moving them.
The following alarms only apply to horizontal mills with a pallet changer:
1001 Index St Unlocked The index station is not in the correct orientation for a pallet
change.
1002 Pallet Locked Down The pallet did not begin to lift within two seconds of command, or
did not complete lifting within six seconds.
1003 Pallets Jammed The lift cylinder has not moved from the clockwise position within
three seconds, or has not reached the counter clockwise
position within twelve seconds.
1004 CW/CCW SwitchIllegal Condition One or both of the switches that sense the rotational position of
the pallet changer has failed it's self-test.
1007 Up/Down Switch Illegal Condition One or both of the switches that sense the lifted/lowered position
of the pallet changer has failed its self-test.
1008 Main Drawbar Locked In Up Position The main drawbar will not disengage from the pallet nut.
1009 Main Drawbar Locked In Down Position The main drawbar will not move upward to the pallet nut.
1010 Main Drawbar Switch Illegal Condition One or both of the switches that sense the up/down position of
the main drawbar has failed it's self-test.
1011 Main Drawbar Unclamp Timeout The main drawbar has disengaged from the pallet nut, but did
not reach the main drawbar down switch.
1012 Main Drawbar Clamp Timeout The main drawbar has begun to travel upward, but did not reach
the fully raised position within 15 seconds.
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