Control Definition
2-7 HP6A Manual
71 Finish Mode Auto Dwell Selection
0 = Off
1 = Short Stroke
2 = Dwell
0
72 Roughing Mode Auto Dwell Selection
0 = Off
1 = Short Stroke
2 = Dwell
0
73 Roughing Mode percent of error 20
74 Roughing / Finish Dwell time in seconds 10
75 Short Stroke / Dwell button Selection
0 = Short Stroke
1 = Dwell
0
76
77
Oiler Timer in 100 second increments
Oiler Timer in 1 second increments
1XX
XX20
78 Upper sensor lock out
0 = Disable
1 = Enable
1
Shut Off Delay Knob:
This knob will add or subtract to the machines automatic calculated stop times. If the rotation of the head
continues to long or stops early minor adjustment to the automatic stop time can be made by adjusting
this knob. When the knob is at mid range the machine will use the automatically calculated stop times.
Above and below the mid range will add or subtract respectively from the calculated time.
Motor Load Display:
The motor load display is divided into two parts. The single bar of lights across the bottom edge is the
load bar. This light bar flashes out and back representing the average load along its scale, as the
machine is honing. Motor load is measured and displayed as indication of tight and loose areas within a
cylinder bore. Tight areas, areas where the bore is small, will cause the load bar to increase.
The rest of the display shows graphically the shape of the cylinder represented by the percent of motor
load on the stones. As the machine is stroking, the series of lights in this section of the display, will show
higher in the tight areas, and lower in the loose areas, creating a curve of the actual shape of the bore.
Clamp / Float Button:
This button is located on the right side of the carriage. The carriage is by default always in clamp. Press
and hold the clamp / float button to float the carriage. This allows air to flow through a valve to a regulator,
then out two ports of the regulator. Air from one port flow through the right orifice on the bottom of the
float plate. Air from the other port flows through a flow control valve then to the left side of the float plate
and out the orifice on the bottom of the float plate.
Auto Stop:
The auto stop feature, automatically switches to Finish Load when a predetermined amount of material
has been removed.
The auto stop is located on the feed ring, above the handwheel, at the end of the rocker arm. This is a
numbered band around the handwheel. With the number ‘0’ lined up on the pointer, the sensor actuator
will line up directly across from the sensor on the backside. This is the position in which the machine will
switch to Finish Load.
To program for a certain amount of stock removal, rotate the feed ring to the desired amount and every
time the hone head feeds out a click the sensor trip button will move closer to the sensor. After the
desired stock removal the sensor will trip, switching the machine to Finish Load.
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