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ALARM LIST FOR THE CHALLENGER SERIES II WITH THE
MITSUBISHI PLC AND SERVO DRIVE, AND THEIR DEFINITIONS.
EMERGENCY-PANEL. – This alarm will appear if the Emergency stop push button on the control panel is
pushed “IN”. In order to clear the alarm, first the push button must be pulled “OUT” and then the Green reset
push button must be pressed momentarily to clear the alarm.
SAFETY CIRCUIT. – This alarm will appear if one or more of the yellow safety cords, which are located on the
print heads is not properly connected. In order to clear the alarm, first you must make sure that all the yellow
safety cords are properly connected and then press on the Green reset push button momentarily to clear the
alarm.
TIMERS NOT SET. - This alarm will appear after the registers in the plc program have been cleared or set to
zero, in order to clear this alarm the values to the registers in the plc must be entered into the program (please
contact the Technical Service Department for the proper values)
RESET ERROR. – This alarm will appear if the Reset input signal is being sent to the plc, and the signal has not
discontinued after 10 sec of receiving it. This error will appear after 10 sec of receiving a constant signal from
any reset push button (shorted switch) on the machine
AIR PRESSURE. – This alarm will appear if the incoming air pressure to the machine has dropped below 75
psig. In order for the alarm to clear, air pressure must reach a minimum of 100 psig. Check at the incoming regu-
lator to confirm that the air pressure to the machine is proper.
LIFT PROX ERROR. – This alarm will appear if the signal from the lift prox (table prox) is either staying on all the
time or the signal is not being sent to the plc, after the table has raised into the registration forks.
INDEX ON PROX ERROR. – This alarm will appear if the signal from the index on prox is either staying on at all
the time or the signal is not being sent to the plc, after the table has been aligned with the print heads or after
the table has rotated (index).
SERVO FWD TIME OUT. - This alarm will appear after the servo drive not being able to send or not sending
feed back information to the plc about its movement. After the plc gives a output to the servo drive to move, it
will wait 6 seconds for this feed back information. If it is not received, the alarm will appear.
LOCK OFF PROX ERR. – This alarm will appear if the signal from the lock off prox (fork prox) is either staying
on all the time or the signal is not being sent to the plc. After the index clevis is pulled away from the index cam
follower bearings (table is in the free wheel mode)
DBL INDX PROX ERR. – This alarm will appear if the signal from the double index prox, is either staying on all
the time or the signal is not sent to the plc, after the double index nylon fork has pulled away from the index cam
follower bearing.
SERVO RVR TIME OUT. -This alarm will appear should the servo drive fail to send, or not send feed back infor-
mation to the plc about its movement in the reverse motion. After the plc gives a output to the servo drive to
move, it will wait 4 seconds for this feed back information, if it is not received. the alarm will appear.
SERVO NOT HOME. - This alarm will appear if the servo index drive system is not at the starting position after
pressing on the green reset button, the alarm will appear after 5 seconds of the index drive not reaching the
starting position.
MOTION CARD ALARM. - This alarm will appear if there is an error with the motion card of the plc, either com-
munication between the absolute encoder or servo amplifier has been lost, or the motion card has a internal cir-
cuit failure.
E 300 Alarm Message Listing
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