Novexx Solutions ALX 92x, Service Manual

Page: 43 / 824

07/15 Rev. 0 SERVICE MANUAL Installing APSF
ALX 92x
17
Mounting the rotary encoder
Rotary encoder with
measuring wheel at the
conveyor belt
[30] Mounting the rotary encoder with measurement wheel at the
conveyor belt. D = Diameter of the measurement wheel.
A measuring wheel translates the conveyor belt movement into rotation of the rotary
encoder shaft.
Diameter of the measuring wheel [30D] and resolution (impulses per rotation) of the
rotary encoder can be entered directly in the function menu.
Rotary encoder on the
drive axle of the
conveyor belt
[31] Mounting the rotary encoder onto the driving axle of the
conveyor belt. D = Diameter of the driving gear.
With this mounting option, the rotary encoder is mounted directly onto the drive axle
of the conveyor. In this case, the driving gear of the conveyor belt takes the part of the
measuring wheel. Accordingly, the diameter of the driving gear [31D] must be entered
into parameter
DISPENSER PARA > Encoder Diameter
.
Rotary encoder at the
motor axle
The rotary encoder is mounted onto the motor axle. The rotation speed of the motor
is normally transmitted via a reduction gear to the driving axle of the conveyor belt.
The reduction ratio of the gear (motor axle rotates faster than drive axle) must be con-
sidered, when entering the rotary encoder data. This can be done on two ways:

Entering a reduced measuring wheel diameter regarding the following:
, with Reduction gear ration
 Entering a increased resolution , regarding the follwing:

Mind the setting range of the parameters „Diameter“ and „Resolution“!
D
D
D
′
D
′
D
G
----
D Z
1
⋅
Z
2
-------------- = = G
Z
2
Z
1
----- =
I
′
I
′
I G
⋅
I
Z
2
Z
1
----- ⋅
= =