27 Troubleshooting
Cause:
The line speed control measured with two sensors is not consistent with
the actual line speed during the marking process.
Remedy:
• Place the trigger sensor closer to the line speed measuring sensor to
reduce the difference between the speed at the point of measurement
and the point of marking.
• Adjust the setting value for “Distance line speed sensors [mm]” by
checking the marking quality.
‒ When the character spacing is too wide, increase the value.
‒ When the character spacing is too narrow, decrease the value.
27.8 External control
If the laser marking system is controlled by I/O signals or communication commands, check
the connections, communications settings, and signal sequences.
Communication with the external device does not start
Cause:
The laser marking system is not in remote mode.
Remedy:
• Switch the laser marking system to remote mode. For details, refer to
the “Setup and Maintenance Guide”.
• Check the setting for “Remote mode switching method” (“I/O” or “PC
configuration software”) in the “System settings” of Laser Marker
NAVI smart. Make sure the setting matches your actual control
method.
• If you have changed the setting for “Remote mode switching method”
in the “System settings”, restart the laser marking system.
Cause:
The connection to external devices is inadequate.
Remedy:
• Check the connections to external devices for faulty or loose
contacts.
• Check the wiring using a continuity tester or the like.
• For RS232C connections, check the wiring of the external device
including the loopback.
ME-NAVIS2-OP-1 309
To Next Page