LINK Systems System 1100 Tonnage Monitor - Manual (Page 69)

INSTALLATION
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5-10
Figure 24. Setting of
Optional Zeroing Cam
Switch.
switch contact can be connected to the machine for grounding.
2) If an ungrounded machine control system is present, run a wire
from the second side of the cam switch back to the GND
terminal adjacent to the EOC terminal on the Logic board.
3) Adjust the zeroing cam switch as
shown in Figure 23. The cam
switch must be set to open
before the machine tooling
exerts force on the downstroke,
and close after all tooling and
stripper forces are relieved on
the upstroke.
4) O n m a c h i n e s t h a t a r e n o t
crankshaft driven, such as
hydraulic power presses, a limit
switch that is held closed when
the slide is in the upper
section of the stroke can be
used instead of a cam switch.
Always run cam switch or limit
switch wires in separate conduit
from 115VAC or higher voltage
conductors.
5.4.4 Connecting Optional Data Window Cam Switches
1) Data windows are used to display and place setpoints on
tonnage other than the absolute peak tonnage. The data window
cam switches should be setup as discussed in section 3.6.
When data windows are to be used, connect a wire from one
contact of each data window cam switch to the System 1100 data
window terminals located on the Logic board is the Logic Unit.
The four data window terminals are labeled DW1, DW2, DW3 and
DW4. If the System 1100 is grounded to the machine ground the
other contact of all the data window cam switches can be
connected to the machine for ground.
2) If an ungrounded machine control system is present, wire the
other data window cam contacts to the GND terminal adjacent to
the data window terminals on the System 1100 Logic board.
3) Always run data window can switch wires in separate conduit