Doc #: L-2600-1023 Page 9 Rev. 02
2 DEFINITIONS AND TERMINOLOGY
This section will give some background and explain the meaning of various settings and readings in the
unit. It is strongly recommended that this section be read in order to use the unit effectively!
2.1 Stops
There are two different kinds of stops that the system can generate. Some conditions always generate a
particular kind of stop, while others are programmable by the user.
2.1.1 Immediate Stop
An “Immediate Stop” sends a signal to the control to immediately stop the press, regardless of where it
is in the cycle. Note that this does NOT mean that the press will actually stop at the point where the stop
was generated, as all presses take some amount of time to drop out the clutch, apply the brake, and come
to a stop. For instance, if a request to stop occurs at 175 degrees, the press may end up stopped at 200
degrees. The number of degrees a press requires to actually stop depends (among other things) on the
design of the press and on stroking speed. All other conditions being equal, the faster the press is
stroking, the longer it requires to stop.
2.1.2 Top Stop
A “Top Stop” sends a signal to the control to stop the press at the top of the stroke. Note that all presses
take some amount of time to stop. If the control determines that it cannot stop at top in the time left
when it receives the stop command, it will typically make an additional stroke. Many high speed
presses take more than 1 full stroke to stop regardless of where the stop occurs.
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