Error Message:

ALE: Plate still on unload table, can't unload

Applies to:

• Trendsetter_400/800_Auto

Operator Action:

Check for a plate blocking the optical plate sensor on the processor end of the unload table. The sensor may be blocked because the plate processor is turned off or because a plate got stuck feeding into the processor. Either turn on the processor, feed the plate into the processor, or remove the plate from the unload table. Select the RESUME button on the workstation dialog box once the plate is no longer on the unload table.

Service Information:

This error gets reported if the optical plate sensor on the processor end of the unload table is blocked for longer than the timeout specified by the altim pht parameter during an UNLOAD command.

This error gets reported under two conditions:

1. If the optical plate sensor on the processor end of the unload table is blocked for longer than the timeout specified by the altim pht parameter during an UNLOAD command. Selecting the RESUME button on the workstation dialog box re-starts this timer.
2. If the optical plate sensor on the processor end of the unload table is blocked when a TABLE UP command is typed into the diagnostic monitor.

It is possible that very bright light shining directly into the optical sensor may cause cause the sensor to activate.

The sensor status may be checked by using the TABLE command. The sensor status should read TRUE if the sensor is activated.

It may be useful to set the 'verbose alcmd' and 'verbose alconv' parameters to 1 in order to obtain further diagnostic information.

Cause:

• Remove plate from unload table.
• Check optical sensor on processor end of unload table
• If there is no plate on the unload table and the sensor appears to be malfunctioning, then the sensor may be temporarily masked off by setting al pes to 0. Masking off this sensor will get rid of the error message but will cause the machine to run significantly slower than it used to.
• WARNING: Masking off sensors disables proper error checking!

See Also:

• Command: table
• Command: resume
• NVS: al pes
• NVS: altim pht
• NVS: verbose alcmd
• NVS: verbose alconv