LINK Systems OmniLink II Press Automation Control - Manual (Page 63)

August 30, 2002 Manual Version 1.0 4.14
3. Take the longest stop time recorded in step 2 and add a 10% to 20% margin for wear and other
factors that affect this time to determine the Brake Monitor Top Stop Limit setting. For example, if
your longest recorded stopping time is 170 milliseconds, 20% of this value is 34, and a setting of 204
milliseconds for the Brake Monitor Top Stop Limit would allow top stopping time to increase by 34
milliseconds before a brake monitor fault would prevent a successive stroke. A 10 % margin would
allow less increase in stopping time before a fault occurred. Turn the Run/Program switch to
Program and select the Brake Monitor Top Stop Limit setting. Enter the number you have
determined in this step for the Brake Monitor Top Stop Limit.
4. Next, return the Run/Program switch to Run and again start the press stroking in Continuous Mode
After the press has made two or three strokes, press the Mid Stop softkey on the Machine Parameter
menu screen. The OmniLink II Press Automation Control will initiate a stop signal near mid stroke
and a stopping time will be displayed in milliseconds (thousandths of a second) for Brake Monitor
Actual Stop Time. To the right of the stop time (MID) should appear, indicating that this is a mid-
stroke stop time measurement. Record the mid stroke stop time and repeat this step, recording mid
stroke stop time each time you stop.
5. Take the longest stop time recorded in step 4 and add a 10% to 20% margin for wear and other
factors that affect this time to determine the Brake Monitor Mid Stroke Stop Limit setting. For
example, if your longest recorded stopping time is 200 milliseconds, 20% of this value is 40, and a
setting of 240 milliseconds for the Brake Monitor Mid Stroke Stop Limit would allow mid stroke
stopping time to increase by 40 milliseconds before a brake monitor fault would prevent a successive
stroke. A 10 % margin would allow less increase in stopping time before a fault occurred. Note!
Because of the characteristics of the reciprocating motion of a mechanical power press, mid stroke
stopping time is normally greater than top stopping time. Turn the Run/Program switch to Program
and select the Brake Monitor Mid Stroke Stop Limit setting. Enter the number you have determined
in this step for the Brake Monitor Mid Stroke Stop Limit.
Section 4.2.2 Speed/Load Configuration Menu Settings
The Speed/Load Configuration menu shown in Figure 4.10 is used to make calibration settings related to
press speed and percent motor load display. This menu is accessed with the SPEED/LOAD CONFIG
softkey on the Machine Parameters Menu. If you don’t purchase the optional Analog Input/Output
option with your system, there are no settings that need be made on this menu. The factory default
setting for Speed Mode, located at the top of the screen, will be “Not Used” and should be left as “Not
Used”. If you do have the Analog/Input Output option, the following sections discuss the choices and
settings that can be made.