LINK Systems OmniLink II Press Automation Control - Manual (Page 65)

August 30, 2002 Manual Version 1.0 4.16
Use the arrow keys to select your choice of 3 Speed Mode settings; Input Only, Output Without Recall,
or Output With Recall. The significance of these settings is:
• Input Only. If Input Only is selected, an analog speed input signal must be provided to the Analog
Input/Output Board from the variable speed drive as shown in Section 2.3.7.2 of this manual. This
will allow display of the selected drive stroking speed, and stroking speed of the press can be
displayed even when the press is not stroking. You will also need to enter Calibration settings related
to Input SPM near the top of the screen.
• Output Without Recall. If Output Without Recall is selected, in addition to the requirements of Input
Only, the analog output SPM output on Link’s Analog Input/Output board must be wired to the press
variable speed drive, This is generically shown in Section 2.3.7.2. This allows stroking speed to be
set by the OmniLink II LCD Operator Terminal, but not recalled on a job by job basis for the
press. Both Input SPM and Output SPM Calibration Parameters will need to be entered on the
Speed/Load configuration menu in order to calibrate input and output SPM. When Output Without
Recall is selected you can also set the Speed Parameters shown on the menu. Setup Mode Fixed
SPM automatically set a fixed low speed for Setup Mode (usually INCH mode). Prod. Mode Min
SPM sets a minimum SPM at which the press will stroke in production modes to avoid sticking the
press on bottom due to insufficient flywheel energy.
• Output With Recall. Same as Output Without Recall except that you may set and store a speed
which will be recalled and set by the OmniLink system on a job by job basis.
Section 4.2.2.2 Calibrating Variable Speed Drive Input SPM When “Input Only” is Selected
If “Input Only” is selected for Speed Mode, the Analog Speed Output by which speed is set by the
OmniLink II Operator Terminal will not be used. Drive SPM will be set by the same method (a
potentiometer or keypad associated with the drive) as before the OmniLink II Press Automation Control
was installed. An analog speed input from the drive to the OmniLink Analog Output/Input board as
shown in Section 2.3.7.2 is necessary. Calibrate the Drive Speed input to the OmniLink Analog
Input/Output board as follows:
1. Go to Section 4.2.4.1 of this manual and configure Stroking Speed to be displayed in the top area of
the operator terminal display “When in a Production Mode”. Stroke Speed is determined by the
resolver attached to the crankshaft and is always accurate. However it will be zero unless the press
clutch is engaged (turning the crankshaft) and the press is actually stroking.
2. Use the potentiometer or keypad that sets the speed of the variable speed drive to set the highest
speed (SPM) for the press.
3. Make certain Input SPM Offset is set to zero.
4. Set Maximum Input SPM to about 10% more than the actual highest stroking speed of the press, ie.,
if highest stroking speed is 100SPM, set Maximum Input SPM to 110.
5. Turn the Program/Run switch on the Operator Terminal to the RUN position so the press can stroke.