Haas VF Series Operator's Manual

130
OPERATION
96-8000
June 1999
This display may also be used to generate an alarm when a tool has been used a specific number of times.
The last column is labeled "Alarm", and if the number for a tool is not zero, an alarm will be generated when
that count is reached. This number can be changed by the operator. Alarm 362 is generated when the count
is reached, and may be cleared with RESET.
The tool that is currently in the spindle is highlighted.
Tool Load Monitor and Display
With the tool load display, the operator can enter the maximum load that is expected for each tool, and when
this load is exceeded in a feed, a certain action will be taken. This display provides for the entry of this alarm
point and also displays the largest load that tool has seen in any previous feed.
The tool load monitor function operates whenever the machine is in a feed operation (G01, G02, or G03). The
values entered into the tool load display are checked against the actual spindle motor load. If the limit is
exceeded, the tool overload action specified in Setting 84 (alarm, feedhold, beep, or Autofeed) will be taken. If
"alarm" is selected and the limit is exceeded, Alarm 174, "Tool Load Exceeded", will be generated. This alarm
will stop the axis motors and the spindle motor, turn off the coolant, and disable the servos.
During a feed the load exceeds the tool limit the AUTOFEED feature, if selected, will automatically override the
feed rate (reduce it) down to the percentage specified by parameter 301 (i.e. 1%) at the rate specified by
parameter 300 (i.e. 10% per second). If the tool load later falls below 95% of the tool load limit percentage, the
AUTOFEED feature will automatically override the feed rate (increase it) back to the feed rate that was in effect
at the start of the feed at the rate specified by parameter 299 (i.e. 20% per second). These adjustments will be
made in 0.1 second increments.
Axis Load Monitor
Loads are measured and displayed on the same screen for the X,Y and Z axes. Note that the MAX% and
LIMIT% columns still apply to the spindle load.
ALARMS / MESSAGES D ISPLAY
The ALARMS DISPLAY can be selected at any time by pressing the ALARM / MESGS button. When there are
no alarms, the display will show NO ALARM. If there are any alarms, they will be listed with the most recent
alarm at the bottom of the list. The CURSOR and PAGE UP and PAGE DOWN buttons can be used to move
through a large number of alarms. The CURSOR right and left buttons can be used to turn on and off the
ALARM history display.
The MESSAGE DISPLAY can be selected at any time by pressing the ALARM / MESGS button a second
time. This is an operator message display and has no other effect on operation of the control. Any message
can be typed into the message display and called up later.
You may leave an electronic note to yourself or anyone else by using this feature. The note may be for the
operator to change tools after running a number of parts or it may be a diary for machine maintenance intervals
that are performed. Data is automatically stored and maintained even in a power off state. The message
display page will be come up during power up if there are no alarms present.
To enter messages, press the ALARM / MESGS button twice. You may now enter data by simply typing
directly onto the screen. The cancel and space keys can be used to remove existing messages. The DELETE
button can be used to remove an entire line.

Haas VF Series Specifications

General

Machine Type	Vertical Machining Center
Control	Haas CNC Control
Z-Axis Travel	20-30 inches (varies by model)
Y-Axis Travel	16 - 30 inches (varies by model)
Spindle Motor	20-30 hp (depending on model)
Tool Capacity	20-40 tools (varies by model)