Nexen RSD200 964533 - Manual (Page 5)

5 FORM NO. L-21193-A-0904
CONTROL REGISTERS
TUNING REGISTERS
Tuning registers are adjusted during the tuning portion of
the RSD200 setup. Please refer to the RSD200 User
Manual for the tuning procedure.
ADDRESS
27: Gain is one of the primary parameters affecting the
response of the RSD200 and must be adjusted
before other tuning parameters; see RSD200 User
Manual for more information. Gain has a range of
.1 to 10.0. This value is multiplied by 10 before
sending or receiving in order to convert it to an
integer. Default value is 5.0.
28: New Roll Adaptation sets the adaptation level for
the smallest new roll run on the machine. It has a
range of 2 to 100 and must be set less than
Maximum Adaptation. This variable is read and
written to as an integer. Default value is 20.
29: Setpoint is the running position of the dancer. It
has a range of 1 % (minimum storage) to 100 %
(maximum storage) and is read and written to as an
integer. Typically Setpoint is set to 50%. Default
value is 50.
30: Dampening affects how the controller responds to
high frequency disturbances such as out-of-round
rolls or vibrations. It has a range of 1 (more respon-
sive) to 7 (less responsive) and is read and written
to as an integer. Default value is 2.
31: Minimum Adaptation sets the beginning point for
the gain adaptation process. It has a range of 2 to
20 and must be set less than Maximum Adaptation.
This variable is read and written to as an integer.
Default value is 2.
32: Maximum Adaptation sets the maximum limit for
the gain adaptation process. It has a range of 2 to
100 and is read and written to as an integer.
Default value is 100.
33: Adaptation Rate affects how fast the RSD200 will
adapt to a roll’s diameter and inertia. It has a range
of 2 (slow) to 50 (fast) and is read and written to as
an integer. Default value is 8.
These registers are used to control the RSD200 and pro-
vide feedback to the HMI while the machine is running.
ADDRESS
34: Web Run/Stop informs the RSD200 when the web
is moving or has stopped. It has two values 0 (web
stopped, RSD200 goes to stopped mode) and 1
(web moving, RSD200 goes into run mode). The
Web Run/Stop register is only set to 1 at the onset
of web movement or immediately after the web is
moving otherwise controller gains could adapt to
undesirable levels. Likewise, the Web Run/Stop
register is set to 0 after the web has come to a
stop.
35: Splice resets the adaptation level to the New Roll
Adaptation value and is used during an automatic
splicing event or when a new roll is placed on the
machine. Momentarily writing a 1 to the Splice
register will cause the adaptation level to change
immediately to the New Roll Adaptation value. This
register will reset itself to 0.
36: Automatic/Manual determines the operating mode
of the RSD200. When a 1 is written to this register
the RSD200 will go into manual mode and the
controller’s output will no longer automatically
change. By writing to the output register, the output
value can be changed manually. When a 2 is
written to this register the RSD200 will go into
automatic mode and control the dancer arm.
37: Output provides the current level of the RSD200’s
control output and is also used to adjust this level.
It has a range of 0 % to 100 % and is read and
written to as an integer. Writing to Output will only
affect the output when the RSD200 is in manual
mode.
38: Dancer Position provides the dancer arm position.
This is a read only register that returns integer
values in the range of 0 % (minimum storage
position) to 100 % (maximum storage position).
Writing to this register will be ignored by the
RSD200.
39: Adaptation provides the adaptation level. This is a
unit less number and has a range of 0 to 100 that
provides a relative value that indicates where on the
non-linear adaptation curve the adaptation process
is. Higher values mean higher internal gain values.
This is a read only register that returns integer
values. Writing to this register will be ignored by
the RSD200.