U Page 54
Digital controller RK 4004
1.1.1. reserved 111
Not assigned at present.
1.1.2. webspeed config.
Parameter block for setting web speed measuring.
1.1.3. webspeed constant
In order to calibrate the web speed measuring function in the control-
ler card the no. of pulses that are generated per running meter of
the web must be entered here.
1.1.4. webspeed max.
1.1.5. webspeed limit
1.2.0. max webspeed ratio
1.2.1. lim webspeed ratio
These parameters are only significant if one of the four functions
is activated in parameter "1.1.8. adaptive function".
The guider proportional range or actuator speed may be influenced
depending on the web speed.
The two vertexes for the characteristic curve are determined via the
following parameters. Depending on the current web speed, a per
cent factor is produced on the basis of the characteristic curve with
which the proportional range or motion speed may be influenced.
1.1.4. =
Entry of the maximum web speed
1.2.0. =
Entry of the accompanying per cent value
1.1.5. =
Entry of the minimum web speed
1.2.1. =
Entry of the accompanying per cent value
Example 1:
The set proportional range (.1.3.) should be 200% at minimum web
speed and 50% at maximum web speed. The minimum web speed is
15 m/min, the maximum web speed 60 m/min.
The corresponding per cent factor for the proportional range at a
specific web speed may be deduced from the characteristic curve
opposite.
1.1.5.
1.1.4.
% factor
m/min
1.2.1.
1.2.0.
1.2.1.
1.2.0.
1.1.5. 1.1.4.