Temperature Gains U81923 Only - Graco PR70 Operation & Maintenance Manual

HMI Navigation Overview
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High Limit Shut Down: This is a user settable pressure for the A and B pumps. If during pumping the
high limit pressure is exceeded, the high limit trips and the audible alarm sounds. The drive shuts
down and pumping stops. The silence alarm button turns off the alarm. The pressure must be relieved
to restart the drive.
NOTE: Pressure transducers must be plugged in for the pumps to cycle.
NOTE: If the pressure exceeds 3000 psi, the drive will shut down. This is a factory setting and cannot
be changed by the operator.
Shot Mode Purge Timer: Off/On. This turns the purge timer off and on. When the purge timer is on,
the pumps will cycle after a period of inactivity. Note this is only active in shot mode. This timer can
also be used to recirc material if equipped with the proper hardware.
Shot Mode Purge Timer: Shot Size/Flow Rate. These are the values the user can enter to determine
how much material to purge and at what flow rate. When the purge timer times down the pumps cycle
at these parameters. When the operator takes the next shot, the regular shot parameters are used
again.
Shot Mode Purge Timer: Purge Timer (sec). This is the user entered value that determines how long
the pumps will sit idle before they purge. Note when the timer times down the audible alarm sounds
for a brief time to warn the operator the machine will cycle.
Shot Mode Purge Timer: Time before Purge. This show the purge timer timing down.

Temperature Gains U81923 Only

See Appendix D - Setting Temperature Gains U81923 Only for information on setting temperature gains.
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This is the value of the gain used for determine how fast the heat load heats up on initial startup and
how much the temperature fluctuates. The default value is 100.
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