629810
45
Zoom out
Zoom in
Previous page
1/654
Next page
HEIDENHAIN CNC PILOT 640 45
1.7 Fundamentals
1.7 Fundamentals
Position encoders and reference marks
The machine axes are equipped with position encoders that register
the positions of the slide or tool. When a machine axis moves, the
corresponding position encoder generates an electrical signal. The
control evaluates this signal and calculates the precise actual position
of the machine axis.
If there is a power interruption, the calculated position will no longer
correspond to the actual position of the machine slide. To recover this
association, incremental position encoders are provided with
reference marks. The scales of the position encoders contain one or
more reference marks that transmit a signal to the control when they
are crossed over. This enables the CNC PILOT to re-establish the
assignment of the displayed position to the current machine position.
For linear encoders with distance-coded reference marks, you only
need to move each axis a maximum of 20 mm (0.8 in.) for these, and
a maximum of 20° for angle encoders.
If incremental encoders are without reference marks, fixed reference
positions have to be traversed after switch-on. The control knows the
exact distance between these reference points and the machine
datum (see figure).
With absolute encoders, an absolute position value is transmitted to
the control immediately upon switch-on. In this way the assignment
of the actual position to the machine slide position is re-established
directly after switch-on.
Axis designations
The cross slide is referred to as the X axis and the saddle as the Z
axis.
All X-axis values that are displayed or entered are regarded as
diameters.
Lathes with Y axis: The Y axis is perpendicular to the X axis and Z axis
(Cartesian system).
When programming paths of traverse, remember to:
Program a positive value to depart the workpiece.
Program a negative value to approach the workpiece.
X (Z,Y)
X
MP
Zref
Xref
M
M
Z
Z+
Y+
X
X+
45


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Heidenhain CNC PILOT 640 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Heidenhain CNC PILOT 640 in the language / languages: English as an attachment in your email.

The manual is 31,33 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Heidenhain CNC PILOT 640

Heidenhain CNC PILOT 640 User Manual - German - 656 pages

Heidenhain CNC PILOT 640 User Manual - Dutch - 657 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info