U Page 55
Digital controller RK 4004
Example 2:
The maximum positioning velocity in "automatic" mode (.1.6.) should
be 25% at minimum web speed and 100% at maximum web speed.
The minimum web speed is 5 m/min, the maximum web speed 20 m/
min.
The corresponding per cent factor for the positioning velocity at a
specific web speed may be deduced from the characteristic curve op-
posite .
The reduction of the positioning velocity does not have any effect
on the sensitivity of the control loop.
1.1.6. actual webspeed
The actual web speed is displayed in m/min.
1.1.7. adaptive controle
Parameter block for process-dependent setting of the control parame-
ters.
1.1.8. adaptive function
An adaptive guider setting is available for adapting the web guider
control loop to changing process variables (e.g. web speed). Which
guider setting is to be influenced by which process variable must be
set with one of the following values.
0 =
Adaptive controlling without function.
1 =
The guider proportional range (.1.3.) is influenced depending
on an external CAN signal.
2 =
The guider proportional range (.1.3.) is influenced depending
on the web speed.
4 =
The motion speed in automatic mode (.1.6.) is influenced de-
pending on an external CAN signal.
8 =
The motion speed in automatic mode (.1.6.) is influenced by the
web speed.
16 = The positioning path (.4.5.) is influenced by an external CAN si-
gnal.
32 = The positioning path (.4.5.) is influenced by the web speed.
1.1.9. adaptive ratio
Display of the current control loop amplification.
1.2.0. max webspeed ratio
See parameter 1.1.4. .
1.2.1. lim webspeed ratio
See parameter 1.1.5. .
1.2.0.
1.2.1.
1.1.5. 1.1.4.
