Loma IQ3, User Manual, Page: 119 / 144

Logs and Reports
Example Problems
Some example run error problems that may be displayed and suggested remedial actions are listed
below.
■
Problem: PV test prompt - an automatic programmed PV test prompt has occurred.
o
Action: Complete a PV Test.
■
Problem: PEC blocked - the product registration photo-eye has remained blocked for greater
than several (the default is 6) consecutive pack lengths.
o
Actions:
Check the PEC for blockage. This is often caused by product backup on the line.
Check the PEC is working correctly.
Check the pack flow length entry is adequate in the Menus > Set Up > Product menu,
ensuring an allowance is made for pack skew.
Ensure that the correct belt speed is entered in the Menus > Service > Configuration >
System menu.
■
Problem: Neg delay exten(sion) - reject dwell time setting problem. Variable speed systems
only.
o
Action: Check the reject delay and dwell time settings in the Menus > Set Up > Product
menu.
■
Problem: Speed too fast - belt speed is greater than the upper limit for filter resistors, coil gap
and belt speed combination. Variable speed systems only.
o
Action: Decrease the belt speed in the Menus > Service > Configuration > System
menu.
■
Problem: Speed too slow - belt speed is less than the lower limit for filter resistors, coil gap
and belt speed combination. Variable speed systems only.
o
Action: Increase the belt speed in the Menus > Service > Configuration > System
menu.
■
Problem: Rejects too close - the reject system is still counting out the dwell for a reject when
the next pack to be rejected needs to be rejected.
o
Actions:
Reduce the reject dwell time in the Menus > Set Up > Product menu.
The pack length for product registration photo-eye operation may be too short. Increase
the entered length in the
Menus > Set Up > Product menu.
Improve the pack pitch.
If the reject is a retracting band or lift/drop flap, change the reject mode to pulse
extension in the
Menus > Service > Reject > Set Up menu.
■
Problem: Reject disabled - the reject relay has been manually disabled.
o
Action: Enable the reject relay using the Reject enable command in the Menus >
Service > Reject > Set Up menu.
■
Problem: Calib-in-run abort - a signal that has exceeded the currently set value for maximum
threshold in the learn setup menu has been exceeded during a learn cycle.
o
Action: Product used for learn is probably contaminated. Select an alternative product for
learning in the Menus > Change menu.
109