Setup Home - Graco PR70 Operation & Maintenance Manual

Setup Home

This screen is used to set the home position and adjust
the home position based on where the piston begins to
enter the metering tube. See Appendix A - Homing
Pumps for more information.
Icon Description
The Enable/Disable Drive push buttons and indicators function the same as the main screen.
The motor has an absolute encoder built in that retains the position even when powered down. In the
event the encoder cable is disconnected between the drive and motor, the home position (zero) will
need to be set again. This sets the new home position. See below for more details.
The Adjusted box shows the adjusted position value set for home. The actual value shows the motor
position as it is incremented with the up/down keys. The units are in motor revolutions.
These keys bump the position of the motor forward or backward. The current motor position is located
in the box marked "Actual".
This rehomes the pumps. The home cycle sends the pump to the reload (retracted) position and then
to the Adjusted home position. This push button functions the same as the one on the main screen.
Once the new home position is determined, this moves the Actual value into the Adjusted value. This
will always be the new home position.
This resets any drive faults that occur.
This resets any drive faults that occur that shutdown the drive.
Turns on the power circuit to the pump drive. When the system is powered up it needs to be powered
up.
Turns off power to the pump drive. Note 24VDC is still supplied to the drive, this only turns off the
power circuit.
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