HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 523)

Moving the machine axes 15.2
15
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
523
Special features of the HR 550 FS wireless handwheel
Due to various potential sources of interference,
a wireless connection is not as reliable as a cable
connection. Before you use the wireless handwheel
it must therefore be checked whether there are any
other radio users in the surroundings of the machine.
This inspection for presence of radio frequencies
or channels is recommended for all industrial radio
systems.
When the HR550 is not needed, always put it in the
handwheel holder. This way you can ensure that the
handwheel batteries are always ready for use thanks
to the contact strip on the rear side of the wireless
handwheel and the recharge control, and that there
is a direct contact connection for the emergency
stop circuit.
If an error (interruption of the radio connection, poor
reception quality, defective handwheel component)
occurs, the handwheel always reacts with an
emergency stop.
Please read the notes on the configuration of the HR
550 FS wireless handwheel see "Configure HR 550
FS wireless handwheel", page 640
Caution: Danger to the operator and machine!
Due to safety reasons you must switch off the
wireless handwheel and the handwheel holder
after an operating time of 120 hours at the latest
so that the TNC can run a functional test when it is
restarted!
If you use several machines with wireless
handwheels in your workshop you have to mark the
handwheels and holders that belong together so that
their respective associations are clearly identifiable
(e.g. by color stickers or numbers). The markings on
the wireless handwheel and the handwheel holder
must be clearly visible to the user!
Before every use, make sure that the correct
handwheel for your machine is active.