Graco HFRL Setup And Operation Manual page 72

Appendix B - ADM Setup Screens Overview
Advanced Screen 3
This screen allows the user to control the availability of
some key system features.
• Disable Dispensing From Display: Check this box
to disable dispensing from the ADM. A footswitch,
dispense valve trigger, or other external signal will
be the only way to initiate a dispense.
• Disable Modifying Temp Setpoint: Check this box
to disable modifying temperature setpoints from
the Run screens. This is only applicable if tempera-
ture control items are installed and enabled.
• Disable Operator Mode Adjustments: When this
box is checked, the user will not be able to adjust
the dispense rate in Operator Mode.
• Temperature Alarm Disables Dispense: When
this box is checked, and temperature zones are
enabled, the HFR will not dispense until the mate-
rial temperature reaches the set temperatures of
the zones. The HFR will also generate a warning
advisory if the user dispenses with a heat zone off
while this feature is on.
• 2x Trigger for Dispense: When this box is
checked, the dispense valve trigger handle or
footswitch assembly will require the user to tap the
switch twice before the HFR will acknowledge the
dispense request (Shot and Sequence Modes
Only). Likewise, the same double tap sequence will
require the user to cancel an active dispense using
the switch device. The described double tap does
not apply when requesting a dispense from the
ADM.
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• Dispense from Home Position: Only applicable
for full circulation type systems in Shot or
Sequence Modes. If the machine is active, wait
until the HFR reaches a certain position on the
pump going a given direction before starting a dis-
pense after a request is issued. This configuration
typically provides the most consistent material
amounts, but will provide inconsistent dispense
delays after a dispense request is issued.
• Operator Mode Cavitation Alarm: Check this box
to enable cavitation alarms in Operator Mode. Clear
this box to disable cavitation alarms in Operator
Mode.
• Micro Motion Enabled: If checked (default is NOT
checked), the HFR will be capable of producing low
flows down to 0.16 cycles/minute, from the default
low rate of 3 cycles/minute.
NOTE: If the HFR is in pressure mode, the selection
is not relevant.
If the resultant low flow selection produces HFR
motor speeds less than 100 RPM or results in
motor stator currents less than 1.0 Amps RMS, the
selected flow may become unstable (as displayed
on the Diagnostic Run Screen to the left of the
home run screen, during a dispense). If this situa-
tion is present, more material restriction or a higher
flow selection may be required. The motor speed
can be monitored on the Diagnostic Run screen,
which must be enabled or turned ON by checking
the "Enable Diagnostic Screen" option on the
Advanced #4 setup screen.
• Complete Dispense with Setpoint Error: When
this box is checked, the shot will continue dispens-
ing even if the system never reaches the desired
setpoint (flow or pressure).
• Disable Setpoint Not Reached Error: Checking or
enabling this option will turn off the generation of
"Set point Not Reached" deviations, which may
occur if the flow rate entered for the machine is a
low value.
• Cavitation Errors Disabled (not recommended
for production use): Checking this box turns off
the Cavitation error generation logic within the HFR
or NVH product. Cavitation errors inform the user
that one of the HFR pumps may not have properly
filled, and that the material ratio may be incorrect.
When the state of this control is changed, an ECC1
Event (Cavitation Errors ON) or an ECC0 Event
(Cavitation Errors OFF) generates on the Event
Screen and the USB logging function.
3A2175Z