System Operation
Controller Operation
820-0332
4-3
Dot Size Thumbwheels:
The adjustable Dot Size Thumbwheels
on the front panel are used to vary the
size of the dot produced without
affecting set-up or requiring additional
operator steps. The microprocessor
reads the thumbwheel settings and
outputs a signal to enable the cartridge
air valve for a predetermined amount
of time. Higher settings enable the
cartridge air valve for a longer time,
producing a larger dot.
Compared to other DieMark Pneumatic Controllers, the dot size range in the Small Dot
Controller is small, due to the limited volume of ink that can flow through the A4
cartridge’s 0.002 inch Teflon tube.
Mode Selection Switches:
There are two mode selection mode switches located on the front panel for selecting
different inker operating modes. The following is a description of the functions of each
switch position.
Top Mode Switch Positions
•
SETUP = Cartridge air valve
disabled for A4 Z height setup
•
RUN = Normal Operation
•
DISABLE = Shuttle air valve
disabled (troubleshooting aid)
When the toggle switch is placed in the
SETUP position, the Cartridge air valve
(V1) is disabled. When SETUP is active,
and the RESET button is pressed, the
Shuttle Valve fires and the shuttle
extends and returns without any air pulse
to the Cartridge Valve. This mode is used
in inker setup to achieve an optimal Z height setting.
In the RUN position, the system operates normally. The switch is placed in the RUN
position for inking.
When the toggle switch is placed in the DISABLE position, the shuttle air valve (V2) is
disabled and the shuttle does not extend during inking. This mode is used in controller
diagnostics, to place dots in hand-inking applications with the optional foot switch or when
utilizing the prober Z function without actuating the shuttle.
Summary of Contents for 340-7110
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