1
Fundamentals
1.1
Overview
This chapter contains information about the product and
this manual.
1.2
Information on the product
Product designation
VT 121
The ID label is provided on the side panel that houses the
connections:
1
2
VT 121
ID 1249466-XX XX
SN 12 345 678
www.heidenhain.de
3
1
Product designation
2
Part number
3
Serial number
1.2.1
Software for the product
You need to install the VTC software on the control of the
machine to be able to use the product. For information
about how to install and use the software, please refer to
the VTC User's Manual (ID 1322445).
28
Part number (ID)
1249466-01
System requirements
The product and its software can be used only
in conjunction with HEIDENHAIN TNC 640
controls with NC software 34059x-10 and later.
1.3
Documentation on the product
1.3.1
Validity of the documentation
Before using the documentation and the product, you
need to verify that the documentation matches the
product.
Compare the part number indicated in the
documentation with the corresponding data given on
the ID label of the product
If the part number matches, the documentation is
valid.
If the part numbers and do not match so that
the documentation is not valid, you will find
the current documentation for the product at
www.heidenhain.de.
HEIDENHAIN | VT 121 | Operating Instructions | 7/2020