HEIDENHAIN TNC 640 (34059x-02) - Manual (Page 494)

Manual operation and setup
15.2 Moving the machine axes
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 5/2013
The HR 550 FS wireless handwheel features a rechargeable
battery. The battery is recharged when you put the handwheel in
the holder (see figure).
You can operate the HR 550 FS with the accumulator for up to
8 hours before it must be recharged again. It is recommended,
however, that you always put the handwheel in its holder when you
are not using it.
As soon as the handwheel is in its holder, it switches internally to
cable operation. In this way you can use the handwheel even if it
were completely discharged. The functions are the same as with
wireless operation.
When the handwheel is completely discharged, it
takes about 3 hours until it is fully recharged in the
handwheel holder.
Clean the contacts 1 in the handwheel holder and
of the handwheel regularly to ensure their proper
functioning.
The transmission range is amply dimensioned. If you should
nevertheless happen to come near the edge of the transmission
area, which is possible with very large machines, the HR 550 FS
warns you in time with a plainly noticeable vibration alarm. If this
happens you must reduce the distance to the handwheel holder,
into which the radio receiver is integrated.
Caution: Danger to the workpiece and tool!
If interruption-free operation is no longer possible
within the transmission range the TNC automatically
triggers an emergency stop. This can also happen
during machining. Try to stay as close as possible to
the handwheel holder and put the handwheel in its
holder when you are not using it.
1