Nexen TCD600E 912145 - Manual (Page 11)

FORM NO. L-20348-F-0705 11
GLOSSARY OF TERMS
Sonic Ultrasonic Sensor
Prox Proximity Sensor
Prox Encod Proximity Sensor-Encoder combination
Counts For Prox encoder combination only, counts represent the number of pulses generated by the encoder dur-
ing 100 inches of web travel.
Full Roll Diameter of the largest roll used within the range of 0 to 70 inches (0 to 1778 mm).
Setpoint Percentage of controlled output applied to the brake, clutch or drive at full roll diameter; Setpoint adjust-
ment range is 0 to 100%.
Hold Torque Percentage of controlled output used in several different ways. For Unwind applications, when the web is
not moving, it is used to apply a constant output which holds the roll stationary and prevents slack webs.
At the beginning of a run, Hold Torque is maintained for the duration of Start Time, enabling the process
to have a lower brake torque as the roll is accelerating. For Wind applications, Hold Torque provides suf-
ficient torque during Start Time to enable the winding process to begin. Hold Torque adjustment range is 0
to 100%.
Strt Time (Start Time) During Start Time, the TCD 600's output is determined by the Hold Torque Value. This value is
maintained for the duration of the Start Time period, enabling the process to have a lower torque while the
roll is accelerating, thus providing a smooth startup of the process and preventing web breaks. Start Time
has an adjustment range of 0 to over 200 seconds.
Taper Used only in Wind applications, Taper starts the roll, at core, with a higher tension value, then automatically
decreases this tension as the roll diameter increases. Taper affects the original Setpoint value by gradu-
ally taking away from the Setpoint a percentage of its value. The amount of Taper can be adjusted within a
range from 0 to 86.5%.
Stop Mult (Stop Multiplier) During a stop cycle of an Unwind application, the current output value is multiplied to
produce sufficient torque to completely stop a roll. The Stop Multiplier can be adjusted to a value from 1 to
9.9.
Stop Time Stop Time is the length of time that the Stop Multiplier Torque value is applied, and can be adjusted from 0
to over 200 seconds.
Diam Hyst (Diameter Hysteresis) This feature is used to enable the TCD 600 to ignore the changes in roll radius cre-
ated by out-of-round or egg-shaped rolls. The Diameter Hysteresis can be adjusted from 0 to 2.55 inches
(0 to 25.5 mm).
Idiam (Initial Diameter) This is used with Proximity Sensor only systems for both Wind and Unwind applications.
This value is the actual diameter of the roll or core at the start of a job, and must be entered to ensure
proper operation. The value of Idiam can be adjusted from 0 to 650 inches (0 to 6500 mm).
Thick Web thickness -- also used with Proximity Sensor only systems. The TCD 600 uses the Initial diameter and
the Thickness to estimate the roll's diameter by subtracting or adding one "thickness amount" for every
revolution of the roll. Thick can be adjusted from 0 to 1.0 inches (0 to 25.4 mm).
Min Dia Alrm (Minimum Diameter Alarm) This is used for Unwind applications where an alarm output is triggered when
the roll size has decreased to a specified diameter; adjustment range is 0 to 650 inches (0-6500mm).
Min Alarm: [NC] NO Minimum Alarm Configuration; Minimum Diameter Alarm output can be configured for Normally Closed
(NC) or Normally Open (NO) operation.
Min Out Minimum Output is used only for Wind applications that use a clutch. This feature sets a minimum output
level to overcome the mechanical force of the clutch for engaging.
Max dia Alrm (Maximum Diameter Alarm) This is used for Wind applications where an alarm output is triggered when the
roll size has increased to a specified diameter; its adjustment range is 0 to 650 inches (0-6500mm).
Max Alarm: [NC] NO Maximum Alarm Configuration; Maximum Diameter Alarm output can be configured for Normally Closed
(NC) or Normally Open (NO) operation.
Accept Changes Y [N] After entering in new information, the TCD 600 will ask if the changes should be accepted; select Yes (Y)
or No (N).