LINK Systems 5100-8 Tonnage & Analog Signal Monitor - Manual (Page 47)

Doc #: L-802-1110 Page 45 Rev. 02
4.4.2 Machine Rating
The Machine Rating is the total capacity of the machine frame as defined by the press manufacturer and
is typically specified at some position off the bottom of the stroke. The tonnage monitor will use this
parameter along with the number of channels to determine the rating of each channel. The scale factors
calculated are used to translate strain gage outputs into tonnage values. This value should be set at the
time that the tonnage monitor module is installed and not changed afterward.
4.4.3 Machine Rating Alarm Level
This is the level at which a channel triggers a machine rating alarm and can be set from 100% to 125%
of machine rating. Remember that machine rating alarms only apply to individual channels, not the total
tonnage. For instance, a four channel setup on a 400 tons press results in a per-channel capacity of 100
tons. If this setting is 125% then the machine rating alarm level for each channel would be 125 tons.
4.4.4 Max Forward Setpoint Level
This is the maximum forward tonnage to which a low or high limit setpoint can be set and can be 10% to
125% of machine rating. Remember that limit setpoints only apply to individual channels, not the total
tonnage. For instance, a four channel setup on a 400 tons press results in a per-channel capacity of 100
tons. If this setting is 100% then the maximum limit level for each channel would be 100 tons.
4.4.5 Max Reverse Setpoint Level
This is the maximum reverse tonnage to which a reverse limit setpoint can be set and can be 10% to
100% of machine rating. Remember that limit setpoints only apply to individual channels, not the total
tonnage. For instance, a four channel setup on a 400 tons press results in a per-channel capacity of 100
tons. If this setting is 50% then the maximum reverse limit level for each channel would be 50 tons.
4.4.6 Number of Data Windows
This parameter defines the maximum number of data windows that the tonnage monitor module will
allow. In situations where less than four data windows will ever be used on a machine, this setting will
keep the CHANGE VIEW softkey from alternating through un-used windows. This does not affect the
number of data windows that can be turned OFF individually for a specific job. From 0 to 4 data
windows can be used.
4.4.7 Filter Frequency
This sets the cutoff frequency of the internal filters used by the tonnage monitor. It should normally be
left at 500 Hz.
4.4.8 Sample Window Start Angle
This angle defines the point in the down-stroke where the tonnage monitor module starts taking samples
for comparison with the limits. After it is reached each sample is examined in order to capture the peak
tonnage for comparison with the limits in effect. The determination of peak tonnage continues until the
end of the working portion of the stroke (Sample Window End Angle). Since this angle defines the start