Operating Manual CMGZ432
22
9.9 Setup of external pilot control
The external pilot control enables to evaluate the actual reel diameter (diameter signal is
read from external source) and to calculate a drive output adapted to the reel diameter
(pilot control signal). In addition, the PI resp. PID control parameters are dynamically
adapted to the reel diameter continuously. Therefore the controller now is only
responsible for the non-synchronous part. This will increase controlling stability.
Notice
The external pilot control is only suitable with a torque controlled drive.Using a speed
controlled drive the internal pilot control has to be used.
Transmission of diameter signal
To transmit the actual reel diameter to the electronic unit, an analog signal 0...10V (from
a distance sensor or other source) is fed to the analog input (terminals d6 / d8 resp. 7 / 8;
refer to „8.6 Mounting the distance sensor“)
Diameter adjustment
To get the electronic unit knowing the actual reel diameter, the distance sensor signal has
to be assigned to a diameter range:
•
Set parameter
Pilot control
to
external
•
Insert reel with small diameter to get a signal according to the small diameter from the
distance sensor
•
Proceed parameter function
Auto. diameter adjustment
(ref. to „11. Parametrisation“
and fig. 16). Input the actual reel diameter into „1. diameter“. After confirmation with
↵
key the diameter is saved together with the referring voltage signal.
fig. 16: Program flow „Auto. diameter adjust“
C431015e
•
Insert reel with large diameter to get a signal according to the large diameter from the
distance sensor
•
Proceed parameter function
Auto. diameter adjustment
(ref. to „11. Parametrisation“
and fig. 16). Input the actual reel diameter into „2. diameter“. After confirmation with
↵
key the diameter is saved together with the referring voltage signal.
