Novexx Solutions ALX 92x, Service Manual

Page: 219 / 824

06/16 Rev. 09 SERVICE MANUAL Service Mechanics
DPM – PEM – ALX 92x
21
Dancer lever Hall sensor (ALX)
In ALX 92x which were built later than 09/
2013, the position detection of the dancer
lever is done by a Hall sensor. This implies
the following advantages:
– Improved resolution
– No potentiometer setting required
– Immunity to ambient light and dust
– Improved long term stability
Tool
– 2 mm allen key
Dismantling
1. Dismantle the rear hood.
2. See chapter Housing on page 8.
3. Disconnect the cable at the sensor board
[36A].
4. Unscrew two screws [36B]. Remove sen-
sor board.
Assembly
Make sure to:

Position the screws [36B] central in the
long holes in the board.

If the sensor cable was disconnected:
Connect the sensor cable to the CPU
board [37A]:
– M5A output stage: CN1111 [37B]
– M4A output stage: CN1110 [37A]

See chapter Stepper motor output stages
on page 93.

Set the Hall sensor.

See topic section Electronics Gen. 3 ,
section „Settings“.
[36] Hall sensor (in RH machine).
[37] Connecting the sensor cable.
A CN1110: Operation with M4A output stage board
B CN1111: Operation with M5A output stage board
A
B
A
B