Nexen RSTC1100 964528 - Manual (Page 16)

FORM NO. L-21204-C-0908 16
RUN/STOP SIGNAL SELECTION
Note: After making a selection, the SEND key must be
pressed to send the values to the RSTC.
The RSTC determines the run and stop state of a web
machine through the Run/Stop signal input and was
designed to accommodate many different types of run and
stop machine state signals.
The following fi gure and descriptions detail the variations
of Run/Stop signals that the RSTC accepts.
R UN /S TOP S IGNAL M AINTAINED
When the Run/Stop input signal is maintained low, the
RSTC assumes the machine is stopped. When the Run/
Stop input signal transitions to a maintained high, the
RSTC algorithm will begin adapting to account for the
roll’s diameter and inertia. The web must be in motion
for unwinding applications or in tension for winding
applications when this signal goes high otherwise the
Adaptive Gain will increase to maximum. After the Run/
Stop signal transitions back to low, the Adaptive Gain will
return to Initial Adaptation (See OPERATION section).
Figure 19 Run/Stop Signal Selection Screen
Figure 18 Diameter Calibration
DIAMETER SIGNAL CALIBRATION
1. Press DIAMETER (See Figure 18).
2. Press Yes if a diameter signal is present and
continue with calibration. Press No if there is not a
diameter signal, therefore the calibration procedure
will not continue.
3. Enter the core diameter and large roll diameter
that will be used for calibration. Core and large roll
diameters can be any representative diameter, not
the minimum and maximum diameters used on the
machine.
4. Press CALIBRATE and apply the voltage that
represents the core diameter to the Diameter Input.
5. Press OK and apply the voltage that represents the
large roll diameter to the Diameter Input.
4. Press OK and the calibration is completed.
It does not matter if the diameter signal voltage increases
or decreases with increasing diameter.
CONTINUED