Dynamatic CES, Инструкция по эксплуатации, Страница: 27 / 38

27
OPTIONAL FEATURES
OPERATING THE PRESS-ON-HOP
This term is used in reference to a press that is basically
operating in the single stroke mode. When the press is
about to stop, if all limit switches and sensing devices
indicate that the mechanical handling equipment is in a
GO condition, the press is told not to stop but to continue
running.
In the following paragraphs, the word "signal" means the
signal that requires the press to continue to run instead
of stopping on top.
The signal is a level type rather than an edge type. If the
signal is removed before the press reaches the
set Creep Angle, the press will go to creep speed and
will be commanded for Normal Stop upon reaching the
set Stop Angle and the press will in fact Stop-On-Top.
This is the equivalent of single stroking the press.
If the signal is removed and returned before the press
reaches the Creep Angle, the press will continue to run
at the preset Run Speed through the angles where it
would otherwise have stopped on top.
If the signal is removed and returned before the press
reaches the set Creep Angle, the press will go to the
Creep Speed. If the signal is returned before the press
reaches the set Stop Angle, the press will continue at the
Creep Speed until it reaches the Stop Angle. At this
point, the press will continue with the next stroke of the
press.
If the signal is removed again before the press reaches
the set Stop Angle the press will Stop-On-Top.
In other words; if the signal is present when the set
Creep Angle is reached, the press will continue at Run
Speed into the next stroke. This is the equivalent of the
continuous mode of operation. If the signal is not
present at this point, the press will go to Creep Speed. If
after being programmed to Creep Speed, the signal is
present when the press reaches the set Stop Angle, the
press will return to Run Speed at this point. If it is not
present, the press will stop.
The software of the DMR is programmed to function in
the above manner as long as the press control sends
and removes the signal at the proper times. Also, it is
the press control that must make the determination if the
press and parts are in fact proper to allow the press to
operate On-the-Hop.
STOP-ON-BOTTOM
A software program has been developed that is helpful
in die setting. It is a feature that allows the press to stop-
on-the-bottom of the stroke, the place where the die
would be clamped or unclamped during die changes.
Some other subtle changes must be accepted if this
option is requested. When in the Inch or micro inch
mode, the press will always Stop-On-Top. When in the
Inch or micro inch modes, 115 volts applied to terminal
318 will result in a Stop-On-Bottom function.
Additional parameters are provided for Stop-On-Bottom
Creep Angle, Stop-On-Bottom Apply Brake Angie, and
Stop-On-Bottom Creep Speed.
When in the Run mode, 115 volts applied to terminal 318
will result in a continuous operation type of function.
Parameters 42, 43 and 44 will be used in the Run, Inch
and Micro Inch modes to effect the Stop-On-Top
function.