Novexx Solutions ALX 92x, Service Manual, Page: 360 / 824

12/14 Rev. 05 SERVICE MANUAL Service Electronics
64-xx Gen. 2 – DPM Gen. 2 – ALX 92x Gen. 2
47
Sensor test
General notes

Activating the sensor test: call parameter
SERVICE FUNCTION > Sensor test
.
By means of the sensor test, you can check the function of each sensor:
•
If the value shown on the printer display exceeds the range given in the chart
below, the respective sensor is possibly dirty and has to be cleaned (blow the
dirt off with compressed air).
•
Check the function of light barriers by covering it, and of micro switches by
triggering it. If the displayed value doesn´t change when the sensor is
covered or switched, it is possibly or defective.
•
Sensors which are not connected show values about 255 in the sensor test.
•
General rule for all sensor values:
– Full light leads to values <= 10
– No light leads to values >= 220
•
To sensors which function as a switch applies the following: Values between
10 and 220 mean that the sensor is poorly set, dirty or close to the end of its
life.
[9] Display after calling „Sensor test“.

Extraneous light must be avoided when checking the sensors. Therefore,
keep the front cover and the housing cover closed during the sensor test.
After starting the sensor test, the following is displayed:

Press the Feed or Cut button („Apply“ button with ALX/DPM/PEM) to select
the individual sensors (if present).

For details refer to paragraph Sensor setting on page 44.

If the following message shows up, a communication error occured between
the CPU board and the motor driver board belonging to the sensor:
Sensor test
0.01 Option 255 0.01 = Sensor ID, Option = Sensor designation, 255 =
Sensor setting
Sensor test
No sensor found
Sensor test
0.01 Punch 11
Value Sensor name Sensor #