Panasonic NAVI smart - Page 308

27 Troubleshooting
Cause:
A fixed line speed was set, which does not match the actual line speed.
Remedy:
Adjust the setting value of the line speed 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.
Cause:
The line speed is controlled by an encoder and could not be measured
correctly.
Remedy:
• Make sure that the encoder operates properly.
• Make sure that the setting value of the encoder resolution is correct.
‒ When using A phase only:
Encoder resolution = Number of pulses/mm ´ 2.
‒ When using A and B phases:
Encoder resolution = Number of pulses/mm ´ 4.
• When only one phase of the encoder is used, connect the encoder
signal to ENCODER A IN (X13) and connect ENCODER B IN (X14)
to IN COM.1 (X2).
Cause:
The line speed fed back to an encoder is not consistent with the actual
line speed during the marking process.
Remedy:
• Place the encoder closer to the trigger sensor.
• Adjust the setting value of the encoder resolution 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.
• In some cases, the influence of line speed fluctuations may be
reduced by lowering the encoder resolution. However, a minimum
encoder resolution of 25pulses/mm is recommended.
Cause:
The line speed, which is controlled by two sensors, could not be
measured correctly.
Remedy:
• Adjust the setting value for “Distance line speed sensors [mm]”.
• Make sure the sensors operate properly.
308 ME-NAVIS2-OP-1